1262 lines
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1262 lines
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * (c) 2008-2010 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * Alexander Warg <warg@os.inf.tu-dresden.de>,</span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * Björn Döbel <doebel@os.inf.tu-dresden.de></span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * economic rights: Technische Universität Dresden (Germany)</span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * License: see LICENSE.spdx (in this directory or the directories above)</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span> </div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include "fd_store.h"</span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include "vcon_stream.h"</span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include "ns_fs.h"</span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include <l4/bid_config.h></span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include <<a class="code" href="env.html">l4/re/env</a>></span></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include <<a class="code" href="rm.html">l4/re/rm</a>></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <<a class="code" href="dataspace.html">l4/re/dataspace</a>></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <<a class="code" href="sys_2assert_8h.html">l4/sys/assert.h</a>></span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include <l4/cxx/hlist></span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include <<a class="code" href="pair.html">l4/cxx/pair</a>></span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include <l4/cxx/std_alloc></span></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include <l4/l4re_vfs/backend></span></div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include <<a class="code" href="shared__cap.html">l4/re/shared_cap</a>></span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include <unistd.h></span></div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include <stdarg.h></span></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include <errno.h></span></div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include <sys/uio.h></span></div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#if 0</span></div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#include <<a class="code" href="kdebug_8h.html">l4/sys/kdebug.h</a>></span></div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="keyword">static</span> <span class="keywordtype">int</span> debug_mmap = 1;</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="preprocessor">#define DEBUG_LOG(level, dbg...) do { if (level) dbg } while (0)</span></div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor">#else</span></div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="preprocessor">#define DEBUG_LOG(level, dbg...) do { } while (0)</span></div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span></div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="preprocessor">#define USE_BIG_ANON_DS</span></div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="keyword">using </span><a class="code hl_class" href="classL4Re_1_1Rm.html">L4Re::Rm</a>;</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="keyword">namespace </span>{</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> </div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="keyword">using </span><a class="code hl_class" href="classcxx_1_1Ref__ptr.html">cxx::Ref_ptr</a>;</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> </div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="keyword">class </span>Fd_store : <span class="keyword">public</span> L4Re::Core::Fd_store</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span>{</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> Fd_store() noexcept;</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span>};</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> </div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="comment">// for internal Vcon_streams we want to have a placement new operator, so</span></div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="comment">// inherit and add one</span></div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span>class Std_stream : public L4Re::Core::Vcon_stream</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span>{</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> Std_stream(L4::Cap<L4::Vcon> c) : L4Re::Core::Vcon_stream(c) {}</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span>};</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span>Fd_store::Fd_store() noexcept</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span>{</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="comment">// use this strange way to prevent deletion of the stdio object</span></div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="comment">// this depends on Fd_store to being a singleton !!!</span></div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="keyword">static</span> <span class="keywordtype">char</span> m[<span class="keyword">sizeof</span>(Std_stream)] __attribute__((aligned(<span class="keyword">sizeof</span>(<span class="keywordtype">long</span>))));</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> Std_stream *s = <span class="keyword">new</span> (m) Std_stream(<a class="code hl_function" href="classL4Re_1_1Env.html#a2706ca11e70845b0a29a5646c9fd54bc">L4Re::Env::env</a>()->log());</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="comment">// make sure that we never delete the static io stream thing</span></div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> s->add_ref();</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> set(0, cxx::ref_ptr(s)); <span class="comment">// stdin</span></div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> set(1, cxx::ref_ptr(s)); <span class="comment">// stdout</span></div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> set(2, cxx::ref_ptr(s)); <span class="comment">// stderr</span></div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span>}</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> </div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span><span class="keyword">class </span>Root_mount_tree : <span class="keyword">public</span> L4Re::Vfs::Mount_tree</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span>{</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> Root_mount_tree() : L4Re::Vfs::Mount_tree(0) {}</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keywordtype">void</span> <span class="keyword">operator</span> <span class="keyword">delete</span> (<span class="keywordtype">void</span> *) {}</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span>};</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> </div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span><span class="keyword">class </span>Vfs : <span class="keyword">public</span> L4Re::Vfs::Ops</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span>{</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span><span class="keyword">private</span>:</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="keywordtype">bool</span> _early_oom;</div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> </div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> Vfs()</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> : _early_oom(true), _root_mount(), _root(L4Re::Env::env())</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> {</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> _root_mount.add_ref();</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> _root.add_ref();</div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> _root_mount.mount(cxx::ref_ptr(&_root));</div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> _cwd = cxx::ref_ptr(&_root);</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> </div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span><span class="preprocessor">#if 0</span></div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> Ref_ptr<L4Re::Vfs::File> rom;</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> _root.openat(<span class="stringliteral">"rom"</span>, 0, 0, &rom);</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> </div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> _root_mount.create_tree(<span class="stringliteral">"lib/foo"</span>, rom);</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> </div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> _root.openat(<span class="stringliteral">"lib"</span>, 0, 0, &_cwd);</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> </div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> }</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> </div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="keywordtype">int</span> alloc_fd(Ref_ptr<L4Re::Vfs::File> <span class="keyword">const</span> &f) <span class="keyword">noexcept</span> <span class="keyword">override</span>;</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> Ref_ptr<L4Re::Vfs::File> free_fd(<span class="keywordtype">int</span> fd) <span class="keyword">noexcept</span> <span class="keyword">override</span>;</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> Ref_ptr<L4Re::Vfs::File> get_root() noexcept override;</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> Ref_ptr<L4Re::Vfs::File> get_cwd() noexcept override;</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keywordtype">void</span> set_cwd(Ref_ptr<L4Re::Vfs::File> const &dir) noexcept override;</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> Ref_ptr<L4Re::Vfs::File> get_file(<span class="keywordtype">int</span> fd) noexcept override;</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> cxx::Pair<Ref_ptr<L4Re::Vfs::File>, <span class="keywordtype">int</span>></div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> set_fd(<span class="keywordtype">int</span> fd, Ref_ptr<L4Re::Vfs::File> const &f = Ref_ptr<>::Nil) noexcept</div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> override;</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> </div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> <span class="keywordtype">int</span> mmap2(<span class="keywordtype">void</span> *start, <span class="keywordtype">size_t</span> len, <span class="keywordtype">int</span> prot, <span class="keywordtype">int</span> flags, <span class="keywordtype">int</span> fd,</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> off_t offset, <span class="keywordtype">void</span> **ptr) noexcept override;</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> </div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="keywordtype">int</span> munmap(<span class="keywordtype">void</span> *start, <span class="keywordtype">size_t</span> len) noexcept override;</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordtype">int</span> mremap(<span class="keywordtype">void</span> *old, <span class="keywordtype">size_t</span> old_sz, <span class="keywordtype">size_t</span> new_sz, <span class="keywordtype">int</span> flags,</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordtype">void</span> **new_addr) noexcept override;</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keywordtype">int</span> mprotect(const <span class="keywordtype">void</span> *a, <span class="keywordtype">size_t</span> sz, <span class="keywordtype">int</span> prot) noexcept override;</div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="keywordtype">int</span> msync(<span class="keywordtype">void</span> *addr, <span class="keywordtype">size_t</span> len, <span class="keywordtype">int</span> flags) noexcept override;</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="keywordtype">int</span> madvise(<span class="keywordtype">void</span> *addr, <span class="keywordtype">size_t</span> len, <span class="keywordtype">int</span> advice) noexcept override;</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> </div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordtype">int</span> register_file_system(L4Re::Vfs::File_system *f) noexcept override;</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordtype">int</span> unregister_file_system(L4Re::Vfs::File_system *f) noexcept override;</div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> L4Re::Vfs::File_system *get_file_system(<span class="keywordtype">char</span> const *fstype) noexcept override;</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> L4Re::Vfs::File_system_list file_system_list() noexcept override;</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> </div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordtype">int</span> register_file_factory(cxx::Ref_ptr<L4Re::Vfs::File_factory> f) noexcept override;</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordtype">int</span> unregister_file_factory(cxx::Ref_ptr<L4Re::Vfs::File_factory> f) noexcept override;</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> Ref_ptr<L4Re::Vfs::File_factory> get_file_factory(<span class="keywordtype">int</span> proto) noexcept override;</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> Ref_ptr<L4Re::Vfs::File_factory> get_file_factory(<span class="keywordtype">char</span> const *proto_name) noexcept override;</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="keywordtype">int</span> mount(<span class="keywordtype">char</span> const *path, cxx::Ref_ptr<L4Re::Vfs::File> const &dir) noexcept override;</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> </div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keywordtype">void</span> operator delete (<span class="keywordtype">void</span> *) {}</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> </div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keywordtype">void</span> *malloc(<span class="keywordtype">size_t</span> size) <span class="keyword">noexcept</span> <span class="keyword">override</span> { <span class="keywordflow">return</span> Vfs_config::malloc(size); }</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <span class="keywordtype">void</span> free(<span class="keywordtype">void</span> *m) <span class="keyword">noexcept</span> <span class="keyword">override</span> { Vfs_config::free(m); }</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> </div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span><span class="keyword">private</span>:</div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> Root_mount_tree _root_mount;</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> L4Re::Core::Env_dir _root;</div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> Ref_ptr<L4Re::Vfs::File> _cwd;</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> Fd_store fds;</div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> </div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> L4Re::Vfs::File_system *_fs_registry;</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> </div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keyword">struct </span>File_factory_item : cxx::H_list_item_t<File_factory_item></div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> {</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> cxx::Ref_ptr<L4Re::Vfs::File_factory> f;</div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <span class="keyword">explicit</span> File_factory_item(cxx::Ref_ptr<L4Re::Vfs::File_factory> <span class="keyword">const</span> &f)</div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> : f(f) {};</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> </div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> File_factory_item() = <span class="keywordflow">default</span>;</div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> File_factory_item(File_factory_item <span class="keyword">const</span> &) = <span class="keyword">delete</span>;</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> File_factory_item &operator = (File_factory_item <span class="keyword">const</span> &) = <span class="keyword">delete</span>;</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> };</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> cxx::H_list_t<File_factory_item> _file_factories;</div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> </div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> _anon_offset;</div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <a class="code hl_typedef" href="namespaceL4Re.html#a8246219e47e489b13fb5f2dde553a6e4">L4Re::Shared_cap<L4Re::Dataspace></a> _anon_ds;</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> </div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> <span class="keywordtype">int</span> alloc_ds(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> size, <a class="code hl_typedef" href="namespaceL4Re.html#a8246219e47e489b13fb5f2dde553a6e4">L4Re::Shared_cap<L4Re::Dataspace></a> *ds);</div>
|
|
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="keywordtype">int</span> alloc_anon_mem(<a class="code hl_typedef" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> size, <a class="code hl_typedef" href="namespaceL4Re.html#a8246219e47e489b13fb5f2dde553a6e4">L4Re::Shared_cap<L4Re::Dataspace></a> *ds,</div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> *offset);</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> </div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="keywordtype">void</span> align_mmap_start_and_length(<span class="keywordtype">void</span> **start, <span class="keywordtype">size_t</span> *length);</div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordtype">int</span> munmap_regions(<span class="keywordtype">void</span> *start, <span class="keywordtype">size_t</span> len);</div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> </div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> L4Re::Vfs::File_system *find_fs_from_type(<span class="keywordtype">char</span> <span class="keyword">const</span> *fstype) <span class="keyword">noexcept</span>;</div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span>};</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> </div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span><span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> strequal(<span class="keywordtype">char</span> <span class="keyword">const</span> *a, <span class="keywordtype">char</span> <span class="keyword">const</span> *b)</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span>{</div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> <span class="keywordflow">for</span> (;*a && *a == *b; ++a, ++b)</div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> ;</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="keywordflow">return</span> *a == *b;</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span>}</div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> </div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span><span class="keywordtype">int</span></div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span>Vfs::register_file_system(L4Re::Vfs::File_system *f) <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span>{</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="keyword">using </span>L4Re::Vfs::File_system;</div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> </div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="keywordflow">if</span> (!f)</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordflow">return</span> -EINVAL;</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> </div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <span class="keywordflow">for</span> (File_system *c = _fs_registry; c; c = c->next())</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <span class="keywordflow">if</span> (strequal(c->type(), f->type()))</div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="keywordflow">return</span> -EEXIST;</div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> </div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> f->next(_fs_registry);</div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> _fs_registry = f;</div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> </div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span>}</div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> </div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span><span class="keywordtype">int</span></div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span>Vfs::unregister_file_system(L4Re::Vfs::File_system *f) <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span>{</div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> <span class="keyword">using </span>L4Re::Vfs::File_system;</div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> </div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <span class="keywordflow">if</span> (!f)</div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <span class="keywordflow">return</span> -EINVAL;</div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> </div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> File_system **p = &_fs_registry;</div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> </div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="keywordflow">for</span> (; *p; p = &(*p)->next())</div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <span class="keywordflow">if</span> (*p == f)</div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> {</div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> *p = f->next();</div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> f->next() = 0;</div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> }</div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> </div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <span class="keywordflow">return</span> -ENOENT;</div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span>}</div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> </div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span>L4Re::Vfs::File_system *</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span>Vfs::find_fs_from_type(<span class="keywordtype">char</span> <span class="keyword">const</span> *fstype) <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span>{</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> L4Re::Vfs::File_system_list fsl(_fs_registry);</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="keywordflow">for</span> (L4Re::Vfs::File_system_list::Iterator c = fsl.begin();</div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> c != fsl.end(); ++c)</div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="keywordflow">if</span> (strequal(c->type(), fstype))</div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> <span class="keywordflow">return</span> *c;</div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span>}</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> </div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span>L4Re::Vfs::File_system_list</div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span>Vfs::file_system_list() noexcept</div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span>{</div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <span class="keywordflow">return</span> L4Re::Vfs::File_system_list(_fs_registry);</div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span>}</div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> </div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span>L4Re::Vfs::File_system *</div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span>Vfs::get_file_system(<span class="keywordtype">char</span> <span class="keyword">const</span> *fstype) <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span>{</div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> L4Re::Vfs::File_system *fs;</div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <span class="keywordflow">if</span> ((fs = find_fs_from_type(fstype)))</div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <span class="keywordflow">return</span> fs;</div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> </div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="comment">// Try to load a file system module dynamically</span></div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> <span class="keywordtype">int</span> res = Vfs_config::load_module(fstype);</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> <span class="keywordflow">if</span> (res < 0)</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> </div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> <span class="comment">// Try again</span></div>
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> <span class="keywordflow">return</span> find_fs_from_type(fstype);</div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span>}</div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> </div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span><span class="keywordtype">int</span></div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span>Vfs::register_file_factory(cxx::Ref_ptr<L4Re::Vfs::File_factory> f) <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span>{</div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> <span class="keywordflow">if</span> (!f)</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> <span class="keywordflow">return</span> -EINVAL;</div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> </div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> <span class="keywordtype">void</span> *x = this->malloc(<span class="keyword">sizeof</span>(File_factory_item));</div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> <span class="keywordflow">if</span> (!x)</div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <span class="keywordflow">return</span> -ENOMEM;</div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> </div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> <span class="keyword">auto</span> ff = <span class="keyword">new</span> (x, cxx::Nothrow()) File_factory_item(f);</div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> _file_factories.push_front(ff);</div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span>}</div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> </div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span><span class="keywordtype">int</span></div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span>Vfs::unregister_file_factory(cxx::Ref_ptr<L4Re::Vfs::File_factory> f) <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span>{</div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span> p: _file_factories)</div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> {</div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> <span class="keywordflow">if</span> (p->f == f)</div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> {</div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> _file_factories.remove(p);</div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> p->~File_factory_item();</div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> this->free(p);</div>
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<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> }</div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> }</div>
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> <span class="keywordflow">return</span> -ENOENT;</div>
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<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span>}</div>
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<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> </div>
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<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span>Ref_ptr<L4Re::Vfs::File_factory></div>
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<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span>Vfs::get_file_factory(<span class="keywordtype">int</span> proto) <span class="keyword">noexcept</span></div>
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|
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span>{</div>
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<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span> p: _file_factories)</div>
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<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> <span class="keywordflow">if</span> (p->f->proto() == proto)</div>
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<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> <span class="keywordflow">return</span> p->f;</div>
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<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> </div>
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<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> <span class="keywordflow">return</span> Ref_ptr<L4Re::Vfs::File_factory>();</div>
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<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span>}</div>
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<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> </div>
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|
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span>Ref_ptr<L4Re::Vfs::File_factory></div>
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<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span>Vfs::get_file_factory(<span class="keywordtype">char</span> <span class="keyword">const</span> *proto_name) <span class="keyword">noexcept</span></div>
|
|
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span>{</div>
|
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<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span> p: _file_factories)</div>
|
|
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> {</div>
|
|
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> <span class="keyword">auto</span> n = p->f->proto_name();</div>
|
|
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> <span class="keywordflow">if</span> (n)</div>
|
|
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> {</div>
|
|
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> <span class="keywordtype">char</span> <span class="keyword">const</span> *a = n;</div>
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|
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> <span class="keywordtype">char</span> <span class="keyword">const</span> *b = proto_name;</div>
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<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> <span class="keywordflow">for</span> (; *a && *b && *a == *b; ++a, ++b)</div>
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|
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> ;</div>
|
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<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> </div>
|
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<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> <span class="keywordflow">if</span> ((*a == 0) && (*b == 0))</div>
|
|
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> <span class="keywordflow">return</span> p->f;</div>
|
|
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> }</div>
|
|
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> }</div>
|
|
<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> </div>
|
|
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> <span class="keywordflow">return</span> Ref_ptr<L4Re::Vfs::File_factory>();</div>
|
|
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span>}</div>
|
|
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> </div>
|
|
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span><span class="keywordtype">int</span></div>
|
|
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span>Vfs::alloc_fd(Ref_ptr<L4Re::Vfs::File> <span class="keyword">const</span> &f) <span class="keyword">noexcept</span></div>
|
|
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span>{</div>
|
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> <span class="keywordtype">int</span> fd = fds.alloc();</div>
|
|
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> <span class="keywordflow">if</span> (fd < 0)</div>
|
|
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> <span class="keywordflow">return</span> -EMFILE;</div>
|
|
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> </div>
|
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<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> <span class="keywordflow">if</span> (f)</div>
|
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<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> fds.set(fd, f);</div>
|
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<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> </div>
|
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<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> <span class="keywordflow">return</span> fd;</div>
|
|
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span>}</div>
|
|
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> </div>
|
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<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span>Ref_ptr<L4Re::Vfs::File></div>
|
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<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span>Vfs::free_fd(<span class="keywordtype">int</span> fd) <span class="keyword">noexcept</span></div>
|
|
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span>{</div>
|
|
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> Ref_ptr<L4Re::Vfs::File> f = fds.get(fd);</div>
|
|
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> </div>
|
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<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> <span class="keywordflow">if</span> (!f)</div>
|
|
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> <span class="keywordflow">return</span> Ref_ptr<>::Nil;</div>
|
|
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> </div>
|
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<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> fds.free(fd);</div>
|
|
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> <span class="keywordflow">return</span> f;</div>
|
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<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span>}</div>
|
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<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> </div>
|
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<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> </div>
|
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<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span>Ref_ptr<L4Re::Vfs::File></div>
|
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<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span>Vfs::get_root() noexcept</div>
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|
<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span>{</div>
|
|
<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span> <span class="keywordflow">return</span> cxx::ref_ptr(&_root);</div>
|
|
<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span>}</div>
|
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<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> </div>
|
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<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span>Ref_ptr<L4Re::Vfs::File></div>
|
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<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span>Vfs::get_cwd() noexcept</div>
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<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span>{</div>
|
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<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> <span class="keywordflow">return</span> _cwd;</div>
|
|
<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span>}</div>
|
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<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> </div>
|
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<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span><span class="keywordtype">void</span></div>
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<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span>Vfs::set_cwd(Ref_ptr<L4Re::Vfs::File> <span class="keyword">const</span> &dir) <span class="keyword">noexcept</span></div>
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|
<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span>{</div>
|
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<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> <span class="comment">// FIXME: check for is dir</span></div>
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<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> <span class="keywordflow">if</span> (dir)</div>
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<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span> _cwd = dir;</div>
|
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<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span>}</div>
|
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<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span> </div>
|
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<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span>Ref_ptr<L4Re::Vfs::File></div>
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<div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span>Vfs::get_file(<span class="keywordtype">int</span> fd) <span class="keyword">noexcept</span></div>
|
|
<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span>{</div>
|
|
<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span> <span class="keywordflow">return</span> fds.get(fd);</div>
|
|
<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span>}</div>
|
|
<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> </div>
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<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span>cxx::Pair<Ref_ptr<L4Re::Vfs::File>, <span class="keywordtype">int</span>></div>
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<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span>Vfs::set_fd(<span class="keywordtype">int</span> fd, Ref_ptr<L4Re::Vfs::File> <span class="keyword">const</span> &f) <span class="keyword">noexcept</span></div>
|
|
<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span>{</div>
|
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<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> <span class="keywordflow">if</span> (!fds.check_fd(fd))</div>
|
|
<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> <span class="keywordflow">return</span> cxx::pair(Ref_ptr<L4Re::Vfs::File>(Ref_ptr<>::Nil), EBADF);</div>
|
|
<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> </div>
|
|
<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> Ref_ptr<L4Re::Vfs::File> old = fds.get(fd);</div>
|
|
<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> fds.set(fd, f);</div>
|
|
<div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> <span class="keywordflow">return</span> cxx::pair(old, 0);</div>
|
|
<div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span>}</div>
|
|
<div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span> </div>
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<div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> </div>
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<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span><span class="preprocessor">#define GET_FILE_DBG(fd, err) \</span></div>
|
|
<div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span><span class="preprocessor"> Ref_ptr<L4Re::Vfs::File> fi = fds.get(fd); \</span></div>
|
|
<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"> 388</span><span class="preprocessor"> if (!fi) \</span></div>
|
|
<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span><span class="preprocessor"> { \</span></div>
|
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<div class="line"><a id="l00390" name="l00390"></a><span class="lineno"> 390</span><span class="preprocessor"> return -err; \</span></div>
|
|
<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span><span class="preprocessor"> }</span></div>
|
|
<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"> 392</span> </div>
|
|
<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span><span class="preprocessor">#define GET_FILE(fd, err) \</span></div>
|
|
<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span><span class="preprocessor"> Ref_ptr<L4Re::Vfs::File> fi = fds.get(fd); \</span></div>
|
|
<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span><span class="preprocessor"> if (!fi) \</span></div>
|
|
<div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span><span class="preprocessor"> return -err;</span></div>
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<div class="line"><a id="l00397" name="l00397"></a><span class="lineno"> 397</span> </div>
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<div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span><span class="keywordtype">void</span></div>
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<div class="line"><a id="l00399" name="l00399"></a><span class="lineno"> 399</span>Vfs::align_mmap_start_and_length(<span class="keywordtype">void</span> **start, <span class="keywordtype">size_t</span> *length)</div>
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<div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span>{</div>
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<div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> <span class="keyword">const</span> s = <span class="keyword">reinterpret_cast<</span><a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a><span class="keyword">></span>(*start);</div>
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<div class="line"><a id="l00402" name="l00402"></a><span class="lineno"> 402</span> <span class="keywordtype">size_t</span> <span class="keyword">const</span> o = s & (<a class="code hl_define" href="group__l4__memory__api.html#gabecf862d8b8f39ad28af45d7fc949dd5">L4_PAGESIZE</a> - 1);</div>
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<div class="line"><a id="l00403" name="l00403"></a><span class="lineno"> 403</span> </div>
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<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span> *start = <span class="keyword">reinterpret_cast<</span><span class="keywordtype">void</span> *<span class="keyword">></span>(<a class="code hl_function" href="group__l4__memory__api.html#ga70b72ae96c18cb49a3445198711bba0d">l4_trunc_page</a>(s));</div>
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<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"> 405</span> *length = <a class="code hl_function" href="group__l4__memory__api.html#ga96e3b2d8e69308aecbb11d1d24f61662">l4_round_page</a>(*length + o);</div>
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|
<div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span>}</div>
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<div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> </div>
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<div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</span><span class="keywordtype">int</span></div>
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<div class="line"><a id="l00409" name="l00409"></a><span class="lineno"> 409</span>Vfs::munmap_regions(<span class="keywordtype">void</span> *start, <span class="keywordtype">size_t</span> len)</div>
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<div class="line"><a id="l00410" name="l00410"></a><span class="lineno"> 410</span>{</div>
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<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> <span class="keyword">using namespace </span>L4;</div>
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<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> <span class="keyword">using namespace </span>L4Re;</div>
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<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> </div>
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<div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> <span class="keywordtype">int</span> err;</div>
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<div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> Cap<Dataspace> ds;</div>
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<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> Cap<Rm> r = Env::env()->rm();</div>
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<div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span> </div>
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<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> <span class="keywordflow">if</span> (<a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a>(start) & (<a class="code hl_define" href="group__l4__memory__api.html#gabecf862d8b8f39ad28af45d7fc949dd5">L4_PAGESIZE</a> - 1))</div>
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|
<div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span> <span class="keywordflow">return</span> -EINVAL;</div>
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<div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> </div>
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<div class="line"><a id="l00421" name="l00421"></a><span class="lineno"> 421</span> align_mmap_start_and_length(&start, &len);</div>
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<div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span> </div>
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<div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span> <span class="keywordflow">while</span> (1)</div>
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<div class="line"><a id="l00424" name="l00424"></a><span class="lineno"> 424</span> {</div>
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<div class="line"><a id="l00425" name="l00425"></a><span class="lineno"> 425</span> DEBUG_LOG(debug_mmap, {</div>
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<div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">"DETACH: start = 0x"</span>);</div>
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<div class="line"><a id="l00427" name="l00427"></a><span class="lineno"> 427</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(<a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a>(start));</div>
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|
<div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">" len = 0x"</span>);</div>
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<div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(len);</div>
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<div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">"\n"</span>);</div>
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<div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span> });</div>
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|
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span> err = r->detach(<a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a>(start), len, &ds, This_task);</div>
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<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span> <span class="keywordflow">if</span> (err < 0)</div>
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|
<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</span> <span class="keywordflow">return</span> err;</div>
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|
<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span> </div>
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|
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> <span class="keywordflow">switch</span> (err & Rm::Detach_result_mask)</div>
|
|
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span> {</div>
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|
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classRm.html#a43a67efc09d07fb2b0ed559184d4a883aa327a69d4932e571c19e48ad5b81d9de">Rm::Split_ds</a>:</div>
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|
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span> <span class="keywordflow">if</span> (ds.<a class="code hl_function" href="classL4_1_1Cap__base.html#ab4937bb12579c752564f7250760d0bda">is_valid</a>())</div>
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<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> L4Re::virt_cap_alloc->take(ds);</div>
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|
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> <span class="keywordflow">return</span> 0;</div>
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|
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classRm.html#a43a67efc09d07fb2b0ed559184d4a883a06735050c90071a6d5bf1f1f6c49d0e3">Rm::Detached_ds</a>:</div>
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|
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span> <span class="keywordflow">if</span> (ds.<a class="code hl_function" href="classL4_1_1Cap__base.html#ab4937bb12579c752564f7250760d0bda">is_valid</a>())</div>
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|
<div class="line"><a id="l00444" name="l00444"></a><span class="lineno"> 444</span> L4Re::virt_cap_alloc->release(ds);</div>
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|
<div class="line"><a id="l00445" name="l00445"></a><span class="lineno"> 445</span> <span class="keywordflow">break</span>;</div>
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|
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno"> 446</span> <span class="keywordflow">default</span>:</div>
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|
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno"> 447</span> <span class="keywordflow">break</span>;</div>
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|
<div class="line"><a id="l00448" name="l00448"></a><span class="lineno"> 448</span> }</div>
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|
<div class="line"><a id="l00449" name="l00449"></a><span class="lineno"> 449</span> </div>
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<div class="line"><a id="l00450" name="l00450"></a><span class="lineno"> 450</span> <span class="keywordflow">if</span> (!(err & <a class="code hl_enumvalue" href="classRm.html#a43a67efc09d07fb2b0ed559184d4a883a52152fd07767300856c5248edc1a5101">Rm::Detach_again</a>))</div>
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|
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno"> 451</span> <span class="keywordflow">return</span> 0;</div>
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|
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno"> 452</span> }</div>
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|
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno"> 453</span>}</div>
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|
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno"> 454</span> </div>
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|
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</span><span class="keywordtype">int</span></div>
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<div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span>Vfs::munmap(<span class="keywordtype">void</span> *start, <span class="keywordtype">size_t</span> len) <a class="code hl_define" href="group__l4sys__defines.html#ga362dfa378e662dd04f710a23fc7ea931">L4_NOTHROW</a></div>
|
|
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span>{</div>
|
|
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span> <span class="keyword">using namespace </span>L4;</div>
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|
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span> <span class="keyword">using namespace </span>L4Re;</div>
|
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<div class="line"><a id="l00460" name="l00460"></a><span class="lineno"> 460</span> </div>
|
|
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span> <span class="keywordtype">int</span> err = 0;</div>
|
|
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span> Cap<Rm> r = Env::env()->rm();</div>
|
|
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span> </div>
|
|
<div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span> <span class="comment">// Fields for obtaining a list of areas for the calling process</span></div>
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<div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> <span class="keywordtype">long</span> area_cnt = -1; <span class="comment">// No. of areas in this process</span></div>
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<div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> Rm::Area <span class="keyword">const</span> *area_array;</div>
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|
<div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> <span class="keywordtype">bool</span> matches_area = <span class="keyword">false</span>; <span class="comment">// true if unmap parameters match an area</span></div>
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<div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span> </div>
|
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<div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> <span class="comment">// First check if there are any areas matching the munmap request. Those</span></div>
|
|
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span> <span class="comment">// might have been created by an mmap call using PROT_NONE as protection</span></div>
|
|
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> <span class="comment">// modifier.</span></div>
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<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span> </div>
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<div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span> area_cnt = r->get_areas((<a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a>) start, &area_array);</div>
|
|
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> </div>
|
|
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span> <span class="comment">// It is enough to check for the very first entry, since get_areas will</span></div>
|
|
<div class="line"><a id="l00476" name="l00476"></a><span class="lineno"> 476</span> <span class="comment">// only return areas with a starting address equal or greater to <start>.</span></div>
|
|
<div class="line"><a id="l00477" name="l00477"></a><span class="lineno"> 477</span> <span class="comment">// However, we intend to unmap at most the area starting exactly at</span></div>
|
|
<div class="line"><a id="l00478" name="l00478"></a><span class="lineno"> 478</span> <span class="comment">// <start>.</span></div>
|
|
<div class="line"><a id="l00479" name="l00479"></a><span class="lineno"> 479</span> <span class="keywordflow">if</span> (area_cnt > 0)</div>
|
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<div class="line"><a id="l00480" name="l00480"></a><span class="lineno"> 480</span> {</div>
|
|
<div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span> <span class="keywordtype">size_t</span> area_size = area_array[0].end - area_array[0].start + 1;</div>
|
|
<div class="line"><a id="l00482" name="l00482"></a><span class="lineno"> 482</span> </div>
|
|
<div class="line"><a id="l00483" name="l00483"></a><span class="lineno"> 483</span> <span class="comment">// Only free the area if the munmap parameters describe it exactly.</span></div>
|
|
<div class="line"><a id="l00484" name="l00484"></a><span class="lineno"> 484</span> <span class="keywordflow">if</span> (area_array[0].start == (<a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a>) start && area_size == len)</div>
|
|
<div class="line"><a id="l00485" name="l00485"></a><span class="lineno"> 485</span> {</div>
|
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<div class="line"><a id="l00486" name="l00486"></a><span class="lineno"> 486</span> r->free_area((<a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a>) start);</div>
|
|
<div class="line"><a id="l00487" name="l00487"></a><span class="lineno"> 487</span> matches_area = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00488" name="l00488"></a><span class="lineno"> 488</span> }</div>
|
|
<div class="line"><a id="l00489" name="l00489"></a><span class="lineno"> 489</span> }</div>
|
|
<div class="line"><a id="l00490" name="l00490"></a><span class="lineno"> 490</span> </div>
|
|
<div class="line"><a id="l00491" name="l00491"></a><span class="lineno"> 491</span> <span class="comment">// After clearing possible area reservations from PROT_NONE mappings, clear</span></div>
|
|
<div class="line"><a id="l00492" name="l00492"></a><span class="lineno"> 492</span> <span class="comment">// any regions in the address range specified. Note that errors shall be</span></div>
|
|
<div class="line"><a id="l00493" name="l00493"></a><span class="lineno"> 493</span> <span class="comment">// suppressed if an area was freed but no regions were found.</span></div>
|
|
<div class="line"><a id="l00494" name="l00494"></a><span class="lineno"> 494</span> err = munmap_regions(start, len);</div>
|
|
<div class="line"><a id="l00495" name="l00495"></a><span class="lineno"> 495</span> <span class="keywordflow">if</span> (err == -ENOENT && matches_area)</div>
|
|
<div class="line"><a id="l00496" name="l00496"></a><span class="lineno"> 496</span> <span class="keywordflow">return</span> 0;</div>
|
|
<div class="line"><a id="l00497" name="l00497"></a><span class="lineno"> 497</span> </div>
|
|
<div class="line"><a id="l00498" name="l00498"></a><span class="lineno"> 498</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00499" name="l00499"></a><span class="lineno"> 499</span>}</div>
|
|
<div class="line"><a id="l00500" name="l00500"></a><span class="lineno"> 500</span> </div>
|
|
<div class="line"><a id="l00501" name="l00501"></a><span class="lineno"> 501</span><span class="keywordtype">int</span></div>
|
|
<div class="line"><a id="l00502" name="l00502"></a><span class="lineno"> 502</span>Vfs::alloc_ds(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> size, <a class="code hl_typedef" href="namespaceL4Re.html#a8246219e47e489b13fb5f2dde553a6e4">L4Re::Shared_cap<L4Re::Dataspace></a> *ds)</div>
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|
<div class="line"><a id="l00503" name="l00503"></a><span class="lineno"> 503</span>{</div>
|
|
<div class="line"><a id="l00504" name="l00504"></a><span class="lineno"> 504</span> *ds = <a class="code hl_function" href="namespaceL4Re.html#a4289d6b17e3c1c85c9f5e90ad1b2de59">L4Re::make_shared_cap<L4Re::Dataspace></a>(L4Re::virt_cap_alloc);</div>
|
|
<div class="line"><a id="l00505" name="l00505"></a><span class="lineno"> 505</span> </div>
|
|
<div class="line"><a id="l00506" name="l00506"></a><span class="lineno"> 506</span> <span class="keywordflow">if</span> (!ds-><a class="code hl_function" href="classL4_1_1Cap__base.html#ab4937bb12579c752564f7250760d0bda">is_valid</a>())</div>
|
|
<div class="line"><a id="l00507" name="l00507"></a><span class="lineno"> 507</span> <span class="keywordflow">return</span> -ENOMEM;</div>
|
|
<div class="line"><a id="l00508" name="l00508"></a><span class="lineno"> 508</span> </div>
|
|
<div class="line"><a id="l00509" name="l00509"></a><span class="lineno"> 509</span> <span class="keywordtype">int</span> err;</div>
|
|
<div class="line"><a id="l00510" name="l00510"></a><span class="lineno"> 510</span> <span class="keywordflow">if</span> ((err = Vfs_config::allocator()->alloc(size, ds->get())) < 0)</div>
|
|
<div class="line"><a id="l00511" name="l00511"></a><span class="lineno"> 511</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00512" name="l00512"></a><span class="lineno"> 512</span> </div>
|
|
<div class="line"><a id="l00513" name="l00513"></a><span class="lineno"> 513</span> DEBUG_LOG(debug_mmap, {</div>
|
|
<div class="line"><a id="l00514" name="l00514"></a><span class="lineno"> 514</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">"ANON DS ALLOCATED: size="</span>);</div>
|
|
<div class="line"><a id="l00515" name="l00515"></a><span class="lineno"> 515</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(size);</div>
|
|
<div class="line"><a id="l00516" name="l00516"></a><span class="lineno"> 516</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">" cap = 0x"</span>);</div>
|
|
<div class="line"><a id="l00517" name="l00517"></a><span class="lineno"> 517</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(ds-><a class="code hl_function" href="classL4_1_1Cap__base.html#a90ff089ca2442b128c2b2b0e1c22c6d7">cap</a>());</div>
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|
<div class="line"><a id="l00518" name="l00518"></a><span class="lineno"> 518</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">"\n"</span>);</div>
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|
<div class="line"><a id="l00519" name="l00519"></a><span class="lineno"> 519</span> });</div>
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|
<div class="line"><a id="l00520" name="l00520"></a><span class="lineno"> 520</span> </div>
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<div class="line"><a id="l00521" name="l00521"></a><span class="lineno"> 521</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00522" name="l00522"></a><span class="lineno"> 522</span>}</div>
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<div class="line"><a id="l00523" name="l00523"></a><span class="lineno"> 523</span> </div>
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<div class="line"><a id="l00524" name="l00524"></a><span class="lineno"> 524</span><span class="keywordtype">int</span></div>
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<div class="line"><a id="l00525" name="l00525"></a><span class="lineno"> 525</span>Vfs::alloc_anon_mem(<a class="code hl_typedef" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> size, <a class="code hl_typedef" href="namespaceL4Re.html#a8246219e47e489b13fb5f2dde553a6e4">L4Re::Shared_cap<L4Re::Dataspace></a> *ds,</div>
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|
<div class="line"><a id="l00526" name="l00526"></a><span class="lineno"> 526</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> *offset)</div>
|
|
<div class="line"><a id="l00527" name="l00527"></a><span class="lineno"> 527</span>{</div>
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|
<div class="line"><a id="l00528" name="l00528"></a><span class="lineno"> 528</span><span class="preprocessor">#if !defined(CONFIG_MMU)</span></div>
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<div class="line"><a id="l00529" name="l00529"></a><span class="lineno"> 529</span> <span class="comment">// Small values for !MMU systems. These platforms do not have much memory</span></div>
|
|
<div class="line"><a id="l00530" name="l00530"></a><span class="lineno"> 530</span> <span class="comment">// typically and the memory must be instantly allocated.</span></div>
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|
<div class="line"><a id="l00531" name="l00531"></a><span class="lineno"> 531</span> <span class="keyword">enum</span></div>
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<div class="line"><a id="l00532" name="l00532"></a><span class="lineno"> 532</span> {</div>
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<div class="line"><a id="l00533" name="l00533"></a><span class="lineno"> 533</span> ANON_MEM_DS_POOL_SIZE = 256UL << 10, <span class="comment">// size of a pool dataspace used for anon memory</span></div>
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<div class="line"><a id="l00534" name="l00534"></a><span class="lineno"> 534</span> ANON_MEM_MAX_SIZE = 32UL << 10, <span class="comment">// chunk size that will be allocate a dataspace</span></div>
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|
<div class="line"><a id="l00535" name="l00535"></a><span class="lineno"> 535</span> };</div>
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<div class="line"><a id="l00536" name="l00536"></a><span class="lineno"> 536</span><span class="preprocessor">#elif defined(USE_BIG_ANON_DS)</span></div>
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<div class="line"><a id="l00537" name="l00537"></a><span class="lineno"> 537</span> <span class="keyword">enum</span></div>
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|
<div class="line"><a id="l00538" name="l00538"></a><span class="lineno"> 538</span> {</div>
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<div class="line"><a id="l00539" name="l00539"></a><span class="lineno"> 539</span> ANON_MEM_DS_POOL_SIZE = 256UL << 20, <span class="comment">// size of a pool dataspace used for anon memory</span></div>
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|
<div class="line"><a id="l00540" name="l00540"></a><span class="lineno"> 540</span> ANON_MEM_MAX_SIZE = 32UL << 20, <span class="comment">// chunk size that will be allocate a dataspace</span></div>
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|
<div class="line"><a id="l00541" name="l00541"></a><span class="lineno"> 541</span> };</div>
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|
<div class="line"><a id="l00542" name="l00542"></a><span class="lineno"> 542</span><span class="preprocessor">#else</span></div>
|
|
<div class="line"><a id="l00543" name="l00543"></a><span class="lineno"> 543</span> <span class="keyword">enum</span></div>
|
|
<div class="line"><a id="l00544" name="l00544"></a><span class="lineno"> 544</span> {</div>
|
|
<div class="line"><a id="l00545" name="l00545"></a><span class="lineno"> 545</span> ANON_MEM_DS_POOL_SIZE = 256UL << 20, <span class="comment">// size of a pool dataspace used for anon memory</span></div>
|
|
<div class="line"><a id="l00546" name="l00546"></a><span class="lineno"> 546</span> ANON_MEM_MAX_SIZE = 0UL << 20, <span class="comment">// chunk size that will be allocate a dataspace</span></div>
|
|
<div class="line"><a id="l00547" name="l00547"></a><span class="lineno"> 547</span> };</div>
|
|
<div class="line"><a id="l00548" name="l00548"></a><span class="lineno"> 548</span><span class="preprocessor">#endif</span></div>
|
|
<div class="line"><a id="l00549" name="l00549"></a><span class="lineno"> 549</span> </div>
|
|
<div class="line"><a id="l00550" name="l00550"></a><span class="lineno"> 550</span> <span class="keywordflow">if</span> (size >= ANON_MEM_MAX_SIZE)</div>
|
|
<div class="line"><a id="l00551" name="l00551"></a><span class="lineno"> 551</span> {</div>
|
|
<div class="line"><a id="l00552" name="l00552"></a><span class="lineno"> 552</span> <span class="keywordtype">int</span> err;</div>
|
|
<div class="line"><a id="l00553" name="l00553"></a><span class="lineno"> 553</span> <span class="keywordflow">if</span> ((err = alloc_ds(size, ds)) < 0)</div>
|
|
<div class="line"><a id="l00554" name="l00554"></a><span class="lineno"> 554</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00555" name="l00555"></a><span class="lineno"> 555</span> </div>
|
|
<div class="line"><a id="l00556" name="l00556"></a><span class="lineno"> 556</span> *offset = 0;</div>
|
|
<div class="line"><a id="l00557" name="l00557"></a><span class="lineno"> 557</span> </div>
|
|
<div class="line"><a id="l00558" name="l00558"></a><span class="lineno"> 558</span> <span class="keywordflow">if</span> (!_early_oom)</div>
|
|
<div class="line"><a id="l00559" name="l00559"></a><span class="lineno"> 559</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00560" name="l00560"></a><span class="lineno"> 560</span> </div>
|
|
<div class="line"><a id="l00561" name="l00561"></a><span class="lineno"> 561</span> <span class="keywordflow">return</span> (*ds)->allocate(0, size);</div>
|
|
<div class="line"><a id="l00562" name="l00562"></a><span class="lineno"> 562</span> }</div>
|
|
<div class="line"><a id="l00563" name="l00563"></a><span class="lineno"> 563</span> </div>
|
|
<div class="line"><a id="l00564" name="l00564"></a><span class="lineno"> 564</span> <span class="keywordflow">if</span> (!_anon_ds.is_valid() || _anon_offset + size >= ANON_MEM_DS_POOL_SIZE)</div>
|
|
<div class="line"><a id="l00565" name="l00565"></a><span class="lineno"> 565</span> {</div>
|
|
<div class="line"><a id="l00566" name="l00566"></a><span class="lineno"> 566</span> <span class="keywordtype">int</span> err;</div>
|
|
<div class="line"><a id="l00567" name="l00567"></a><span class="lineno"> 567</span> <span class="keywordflow">if</span> ((err = alloc_ds(ANON_MEM_DS_POOL_SIZE, ds)) < 0)</div>
|
|
<div class="line"><a id="l00568" name="l00568"></a><span class="lineno"> 568</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00569" name="l00569"></a><span class="lineno"> 569</span> </div>
|
|
<div class="line"><a id="l00570" name="l00570"></a><span class="lineno"> 570</span> _anon_offset = 0;</div>
|
|
<div class="line"><a id="l00571" name="l00571"></a><span class="lineno"> 571</span> _anon_ds = *ds;</div>
|
|
<div class="line"><a id="l00572" name="l00572"></a><span class="lineno"> 572</span> }</div>
|
|
<div class="line"><a id="l00573" name="l00573"></a><span class="lineno"> 573</span> <span class="keywordflow">else</span></div>
|
|
<div class="line"><a id="l00574" name="l00574"></a><span class="lineno"> 574</span> *ds = _anon_ds;</div>
|
|
<div class="line"><a id="l00575" name="l00575"></a><span class="lineno"> 575</span> </div>
|
|
<div class="line"><a id="l00576" name="l00576"></a><span class="lineno"> 576</span> <span class="keywordflow">if</span> (_early_oom)</div>
|
|
<div class="line"><a id="l00577" name="l00577"></a><span class="lineno"> 577</span> {</div>
|
|
<div class="line"><a id="l00578" name="l00578"></a><span class="lineno"> 578</span> <span class="keywordflow">if</span> (<span class="keywordtype">int</span> err = (*ds)->allocate(_anon_offset, size))</div>
|
|
<div class="line"><a id="l00579" name="l00579"></a><span class="lineno"> 579</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00580" name="l00580"></a><span class="lineno"> 580</span> }</div>
|
|
<div class="line"><a id="l00581" name="l00581"></a><span class="lineno"> 581</span> </div>
|
|
<div class="line"><a id="l00582" name="l00582"></a><span class="lineno"> 582</span> *offset = _anon_offset;</div>
|
|
<div class="line"><a id="l00583" name="l00583"></a><span class="lineno"> 583</span> _anon_offset += size;</div>
|
|
<div class="line"><a id="l00584" name="l00584"></a><span class="lineno"> 584</span> <span class="keywordflow">return</span> 0;</div>
|
|
<div class="line"><a id="l00585" name="l00585"></a><span class="lineno"> 585</span>}</div>
|
|
<div class="line"><a id="l00586" name="l00586"></a><span class="lineno"> 586</span> </div>
|
|
<div class="line"><a id="l00587" name="l00587"></a><span class="lineno"> 587</span><span class="keywordtype">int</span></div>
|
|
<div class="line"><a id="l00588" name="l00588"></a><span class="lineno"> 588</span>Vfs::mmap2(<span class="keywordtype">void</span> *start, <span class="keywordtype">size_t</span> len, <span class="keywordtype">int</span> prot, <span class="keywordtype">int</span> flags, <span class="keywordtype">int</span> fd, off_t page4k_offset,</div>
|
|
<div class="line"><a id="l00589" name="l00589"></a><span class="lineno"> 589</span> <span class="keywordtype">void</span> **resptr) <a class="code hl_define" href="group__l4sys__defines.html#ga362dfa378e662dd04f710a23fc7ea931">L4_NOTHROW</a></div>
|
|
<div class="line"><a id="l00590" name="l00590"></a><span class="lineno"> 590</span>{</div>
|
|
<div class="line"><a id="l00591" name="l00591"></a><span class="lineno"> 591</span> DEBUG_LOG(debug_mmap, {</div>
|
|
<div class="line"><a id="l00592" name="l00592"></a><span class="lineno"> 592</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">"MMAP params: "</span>);</div>
|
|
<div class="line"><a id="l00593" name="l00593"></a><span class="lineno"> 593</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">"start = 0x"</span>);</div>
|
|
<div class="line"><a id="l00594" name="l00594"></a><span class="lineno"> 594</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(<a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a>(start));</div>
|
|
<div class="line"><a id="l00595" name="l00595"></a><span class="lineno"> 595</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">", len = 0x"</span>);</div>
|
|
<div class="line"><a id="l00596" name="l00596"></a><span class="lineno"> 596</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(len);</div>
|
|
<div class="line"><a id="l00597" name="l00597"></a><span class="lineno"> 597</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">", prot = 0x"</span>);</div>
|
|
<div class="line"><a id="l00598" name="l00598"></a><span class="lineno"> 598</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(prot);</div>
|
|
<div class="line"><a id="l00599" name="l00599"></a><span class="lineno"> 599</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">", flags = 0x"</span>);</div>
|
|
<div class="line"><a id="l00600" name="l00600"></a><span class="lineno"> 600</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(flags);</div>
|
|
<div class="line"><a id="l00601" name="l00601"></a><span class="lineno"> 601</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">", offset = 0x"</span>);</div>
|
|
<div class="line"><a id="l00602" name="l00602"></a><span class="lineno"> 602</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(page4k_offset);</div>
|
|
<div class="line"><a id="l00603" name="l00603"></a><span class="lineno"> 603</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">"\n"</span>);</div>
|
|
<div class="line"><a id="l00604" name="l00604"></a><span class="lineno"> 604</span> });</div>
|
|
<div class="line"><a id="l00605" name="l00605"></a><span class="lineno"> 605</span> </div>
|
|
<div class="line"><a id="l00606" name="l00606"></a><span class="lineno"> 606</span> <span class="keyword">using namespace </span>L4Re;</div>
|
|
<div class="line"><a id="l00607" name="l00607"></a><span class="lineno"> 607</span> off64_t offset = <a class="code hl_function" href="group__l4__memory__api.html#ga70b72ae96c18cb49a3445198711bba0d">l4_trunc_page</a>(page4k_offset << 12);</div>
|
|
<div class="line"><a id="l00608" name="l00608"></a><span class="lineno"> 608</span> </div>
|
|
<div class="line"><a id="l00609" name="l00609"></a><span class="lineno"> 609</span> <span class="keywordflow">if</span> (flags & MAP_FIXED)</div>
|
|
<div class="line"><a id="l00610" name="l00610"></a><span class="lineno"> 610</span> <span class="keywordflow">if</span> (<a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a>(start) & (<a class="code hl_define" href="group__l4__memory__api.html#gabecf862d8b8f39ad28af45d7fc949dd5">L4_PAGESIZE</a> - 1))</div>
|
|
<div class="line"><a id="l00611" name="l00611"></a><span class="lineno"> 611</span> <span class="keywordflow">return</span> -EINVAL;</div>
|
|
<div class="line"><a id="l00612" name="l00612"></a><span class="lineno"> 612</span> </div>
|
|
<div class="line"><a id="l00613" name="l00613"></a><span class="lineno"> 613</span> align_mmap_start_and_length(&start, &len);</div>
|
|
<div class="line"><a id="l00614" name="l00614"></a><span class="lineno"> 614</span> </div>
|
|
<div class="line"><a id="l00615" name="l00615"></a><span class="lineno"> 615</span> <span class="comment">// special code to just reserve an area of the virtual address space</span></div>
|
|
<div class="line"><a id="l00616" name="l00616"></a><span class="lineno"> 616</span> <span class="comment">// Same behavior should be exposed when mapping with PROT_NONE. Mind that</span></div>
|
|
<div class="line"><a id="l00617" name="l00617"></a><span class="lineno"> 617</span> <span class="comment">// PROT_NONE can only be specified exclusively, since it is defined to 0x0.</span></div>
|
|
<div class="line"><a id="l00618" name="l00618"></a><span class="lineno"> 618</span> <span class="keywordflow">if</span> ((flags & 0x1000000) || (prot == PROT_NONE))</div>
|
|
<div class="line"><a id="l00619" name="l00619"></a><span class="lineno"> 619</span> {</div>
|
|
<div class="line"><a id="l00620" name="l00620"></a><span class="lineno"> 620</span> <span class="keywordtype">int</span> err;</div>
|
|
<div class="line"><a id="l00621" name="l00621"></a><span class="lineno"> 621</span> L4::Cap<Rm> r = Env::env()->rm();</div>
|
|
<div class="line"><a id="l00622" name="l00622"></a><span class="lineno"> 622</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> area = <span class="keyword">reinterpret_cast<</span><a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a><span class="keyword">></span>(start);</div>
|
|
<div class="line"><a id="l00623" name="l00623"></a><span class="lineno"> 623</span> err = r->reserve_area(&area, len, <a class="code hl_enumvalue" href="structL4Re_1_1Rm_1_1F.html#adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a">L4Re::Rm::F::Search_addr</a>);</div>
|
|
<div class="line"><a id="l00624" name="l00624"></a><span class="lineno"> 624</span> <span class="keywordflow">if</span> (err < 0)</div>
|
|
<div class="line"><a id="l00625" name="l00625"></a><span class="lineno"> 625</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00626" name="l00626"></a><span class="lineno"> 626</span> </div>
|
|
<div class="line"><a id="l00627" name="l00627"></a><span class="lineno"> 627</span> *resptr = <span class="keyword">reinterpret_cast<</span><span class="keywordtype">void</span>*<span class="keyword">></span>(area);</div>
|
|
<div class="line"><a id="l00628" name="l00628"></a><span class="lineno"> 628</span> </div>
|
|
<div class="line"><a id="l00629" name="l00629"></a><span class="lineno"> 629</span> DEBUG_LOG(debug_mmap, {</div>
|
|
<div class="line"><a id="l00630" name="l00630"></a><span class="lineno"> 630</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">" MMAP reserved area: 0x"</span>);</div>
|
|
<div class="line"><a id="l00631" name="l00631"></a><span class="lineno"> 631</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(area);</div>
|
|
<div class="line"><a id="l00632" name="l00632"></a><span class="lineno"> 632</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">" length= 0x"</span>);</div>
|
|
<div class="line"><a id="l00633" name="l00633"></a><span class="lineno"> 633</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(len);</div>
|
|
<div class="line"><a id="l00634" name="l00634"></a><span class="lineno"> 634</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">"\n"</span>);</div>
|
|
<div class="line"><a id="l00635" name="l00635"></a><span class="lineno"> 635</span> });</div>
|
|
<div class="line"><a id="l00636" name="l00636"></a><span class="lineno"> 636</span> </div>
|
|
<div class="line"><a id="l00637" name="l00637"></a><span class="lineno"> 637</span> <span class="keywordflow">return</span> 0;</div>
|
|
<div class="line"><a id="l00638" name="l00638"></a><span class="lineno"> 638</span> }</div>
|
|
<div class="line"><a id="l00639" name="l00639"></a><span class="lineno"> 639</span> </div>
|
|
<div class="line"><a id="l00640" name="l00640"></a><span class="lineno"> 640</span> <a class="code hl_typedef" href="namespaceL4Re.html#a8246219e47e489b13fb5f2dde553a6e4">L4Re::Shared_cap<L4Re::Dataspace></a> ds;</div>
|
|
<div class="line"><a id="l00641" name="l00641"></a><span class="lineno"> 641</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> anon_offset = 0;</div>
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|
<div class="line"><a id="l00642" name="l00642"></a><span class="lineno"> 642</span> L4Re::Rm::Flags rm_flags(0);</div>
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|
<div class="line"><a id="l00643" name="l00643"></a><span class="lineno"> 643</span> </div>
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<div class="line"><a id="l00644" name="l00644"></a><span class="lineno"> 644</span> <span class="keywordflow">if</span> (flags & (MAP_ANONYMOUS | MAP_PRIVATE))</div>
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|
<div class="line"><a id="l00645" name="l00645"></a><span class="lineno"> 645</span> {</div>
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<div class="line"><a id="l00646" name="l00646"></a><span class="lineno"> 646</span> rm_flags |= <a class="code hl_enumvalue" href="structL4Re_1_1Rm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a73be84e7035cfe1bbed5edbff7116641">L4Re::Rm::F::Detach_free</a>;</div>
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|
<div class="line"><a id="l00647" name="l00647"></a><span class="lineno"> 647</span> </div>
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<div class="line"><a id="l00648" name="l00648"></a><span class="lineno"> 648</span> <span class="keywordtype">int</span> err = alloc_anon_mem(len, &ds, &anon_offset);</div>
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|
<div class="line"><a id="l00649" name="l00649"></a><span class="lineno"> 649</span> <span class="keywordflow">if</span> (err)</div>
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|
<div class="line"><a id="l00650" name="l00650"></a><span class="lineno"> 650</span> <span class="keywordflow">return</span> err;</div>
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|
<div class="line"><a id="l00651" name="l00651"></a><span class="lineno"> 651</span> </div>
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|
<div class="line"><a id="l00652" name="l00652"></a><span class="lineno"> 652</span> DEBUG_LOG(debug_mmap, {</div>
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<div class="line"><a id="l00653" name="l00653"></a><span class="lineno"> 653</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">" USE ANON MEM: 0x"</span>);</div>
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|
<div class="line"><a id="l00654" name="l00654"></a><span class="lineno"> 654</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(ds.<a class="code hl_function" href="classL4_1_1Cap__base.html#a90ff089ca2442b128c2b2b0e1c22c6d7">cap</a>());</div>
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|
<div class="line"><a id="l00655" name="l00655"></a><span class="lineno"> 655</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">" offs = 0x"</span>);</div>
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|
<div class="line"><a id="l00656" name="l00656"></a><span class="lineno"> 656</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(anon_offset);</div>
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|
<div class="line"><a id="l00657" name="l00657"></a><span class="lineno"> 657</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">"\n"</span>);</div>
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|
<div class="line"><a id="l00658" name="l00658"></a><span class="lineno"> 658</span> });</div>
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|
<div class="line"><a id="l00659" name="l00659"></a><span class="lineno"> 659</span> }</div>
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|
<div class="line"><a id="l00660" name="l00660"></a><span class="lineno"> 660</span> </div>
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|
<div class="line"><a id="l00661" name="l00661"></a><span class="lineno"> 661</span> <span class="keywordtype">char</span> <span class="keyword">const</span> *region_name = <span class="stringliteral">"[unknown]"</span>;</div>
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|
<div class="line"><a id="l00662" name="l00662"></a><span class="lineno"> 662</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> file_offset = 0;</div>
|
|
<div class="line"><a id="l00663" name="l00663"></a><span class="lineno"> 663</span> <span class="keywordflow">if</span> (!(flags & MAP_ANONYMOUS))</div>
|
|
<div class="line"><a id="l00664" name="l00664"></a><span class="lineno"> 664</span> {</div>
|
|
<div class="line"><a id="l00665" name="l00665"></a><span class="lineno"> 665</span> Ref_ptr<L4Re::Vfs::File> fi = fds.get(fd);</div>
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|
<div class="line"><a id="l00666" name="l00666"></a><span class="lineno"> 666</span> <span class="keywordflow">if</span> (!fi)</div>
|
|
<div class="line"><a id="l00667" name="l00667"></a><span class="lineno"> 667</span> <span class="keywordflow">return</span> -EBADF;</div>
|
|
<div class="line"><a id="l00668" name="l00668"></a><span class="lineno"> 668</span> </div>
|
|
<div class="line"><a id="l00669" name="l00669"></a><span class="lineno"> 669</span> region_name = fi->path();</div>
|
|
<div class="line"><a id="l00670" name="l00670"></a><span class="lineno"> 670</span> </div>
|
|
<div class="line"><a id="l00671" name="l00671"></a><span class="lineno"> 671</span> L4::Cap<L4Re::Dataspace> fds = fi->data_space();</div>
|
|
<div class="line"><a id="l00672" name="l00672"></a><span class="lineno"> 672</span> </div>
|
|
<div class="line"><a id="l00673" name="l00673"></a><span class="lineno"> 673</span> <span class="keywordflow">if</span> (!fds.<a class="code hl_function" href="classL4_1_1Cap__base.html#ab4937bb12579c752564f7250760d0bda">is_valid</a>())</div>
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|
<div class="line"><a id="l00674" name="l00674"></a><span class="lineno"> 674</span> <span class="keywordflow">return</span> -EINVAL;</div>
|
|
<div class="line"><a id="l00675" name="l00675"></a><span class="lineno"> 675</span> </div>
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|
<div class="line"><a id="l00676" name="l00676"></a><span class="lineno"> 676</span> <span class="keywordflow">if</span> (len + offset > <a class="code hl_function" href="group__l4__memory__api.html#ga96e3b2d8e69308aecbb11d1d24f61662">l4_round_page</a>(fds->size()))</div>
|
|
<div class="line"><a id="l00677" name="l00677"></a><span class="lineno"> 677</span> <span class="keywordflow">return</span> -EINVAL;</div>
|
|
<div class="line"><a id="l00678" name="l00678"></a><span class="lineno"> 678</span> </div>
|
|
<div class="line"><a id="l00679" name="l00679"></a><span class="lineno"> 679</span> <span class="keywordflow">if</span> (flags & MAP_PRIVATE)</div>
|
|
<div class="line"><a id="l00680" name="l00680"></a><span class="lineno"> 680</span> {</div>
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|
<div class="line"><a id="l00681" name="l00681"></a><span class="lineno"> 681</span> DEBUG_LOG(debug_mmap, <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">"COW\n"</span>););</div>
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|
<div class="line"><a id="l00682" name="l00682"></a><span class="lineno"> 682</span> <span class="keywordtype">int</span> err = ds->copy_in(anon_offset, fds, offset, len);</div>
|
|
<div class="line"><a id="l00683" name="l00683"></a><span class="lineno"> 683</span> file_offset = offset;</div>
|
|
<div class="line"><a id="l00684" name="l00684"></a><span class="lineno"> 684</span> <span class="keywordflow">if</span> (err == -<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9a54ddbebc30b661c87177b968a77588b8">L4_EINVAL</a>)</div>
|
|
<div class="line"><a id="l00685" name="l00685"></a><span class="lineno"> 685</span> {</div>
|
|
<div class="line"><a id="l00686" name="l00686"></a><span class="lineno"> 686</span> L4::Cap<Rm> r = Env::env()->rm();</div>
|
|
<div class="line"><a id="l00687" name="l00687"></a><span class="lineno"> 687</span> Rm::Unique_region<char*> src;</div>
|
|
<div class="line"><a id="l00688" name="l00688"></a><span class="lineno"> 688</span> Rm::Unique_region<char*> dst;</div>
|
|
<div class="line"><a id="l00689" name="l00689"></a><span class="lineno"> 689</span> err = r->attach(&src, len,</div>
|
|
<div class="line"><a id="l00690" name="l00690"></a><span class="lineno"> 690</span> <a class="code hl_enumvalue" href="structL4Re_1_1Rm_1_1F.html#adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a">L4Re::Rm::F::Search_addr</a> | <a class="code hl_enumvalue" href="structL4Re_1_1Rm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a6c0c069e0eca980069382cf52276815b">L4Re::Rm::F::R</a>,</div>
|
|
<div class="line"><a id="l00691" name="l00691"></a><span class="lineno"> 691</span> fds, offset);</div>
|
|
<div class="line"><a id="l00692" name="l00692"></a><span class="lineno"> 692</span> <span class="keywordflow">if</span> (err < 0)</div>
|
|
<div class="line"><a id="l00693" name="l00693"></a><span class="lineno"> 693</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00694" name="l00694"></a><span class="lineno"> 694</span> </div>
|
|
<div class="line"><a id="l00695" name="l00695"></a><span class="lineno"> 695</span> err = r->attach(&dst, len,</div>
|
|
<div class="line"><a id="l00696" name="l00696"></a><span class="lineno"> 696</span> <a class="code hl_enumvalue" href="structL4Re_1_1Rm_1_1F.html#adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a">L4Re::Rm::F::Search_addr</a> | <a class="code hl_enumvalue" href="structL4Re_1_1Rm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a579e389b46e438a64f3f44d9cf19f26a">L4Re::Rm::F::RW</a>,</div>
|
|
<div class="line"><a id="l00697" name="l00697"></a><span class="lineno"> 697</span> ds.get(), anon_offset);</div>
|
|
<div class="line"><a id="l00698" name="l00698"></a><span class="lineno"> 698</span> <span class="keywordflow">if</span> (err < 0)</div>
|
|
<div class="line"><a id="l00699" name="l00699"></a><span class="lineno"> 699</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00700" name="l00700"></a><span class="lineno"> 700</span> </div>
|
|
<div class="line"><a id="l00701" name="l00701"></a><span class="lineno"> 701</span> memcpy(dst.<a class="code hl_function" href="classRm_1_1Unique__region.html#a301d5bd597f8c1e3b98bc52659f13dbe">get</a>(), src.<a class="code hl_function" href="classRm_1_1Unique__region.html#a301d5bd597f8c1e3b98bc52659f13dbe">get</a>(), len);</div>
|
|
<div class="line"><a id="l00702" name="l00702"></a><span class="lineno"> 702</span> </div>
|
|
<div class="line"><a id="l00703" name="l00703"></a><span class="lineno"> 703</span> region_name = <span class="stringliteral">"[mmap-private]"</span>;</div>
|
|
<div class="line"><a id="l00704" name="l00704"></a><span class="lineno"> 704</span> file_offset = (<span class="keywordtype">unsigned</span> long)dst.<a class="code hl_function" href="classRm_1_1Unique__region.html#a301d5bd597f8c1e3b98bc52659f13dbe">get</a>();</div>
|
|
<div class="line"><a id="l00705" name="l00705"></a><span class="lineno"> 705</span> }</div>
|
|
<div class="line"><a id="l00706" name="l00706"></a><span class="lineno"> 706</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (err)</div>
|
|
<div class="line"><a id="l00707" name="l00707"></a><span class="lineno"> 707</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00708" name="l00708"></a><span class="lineno"> 708</span> </div>
|
|
<div class="line"><a id="l00709" name="l00709"></a><span class="lineno"> 709</span> offset = anon_offset;</div>
|
|
<div class="line"><a id="l00710" name="l00710"></a><span class="lineno"> 710</span> }</div>
|
|
<div class="line"><a id="l00711" name="l00711"></a><span class="lineno"> 711</span> <span class="keywordflow">else</span></div>
|
|
<div class="line"><a id="l00712" name="l00712"></a><span class="lineno"> 712</span> {</div>
|
|
<div class="line"><a id="l00713" name="l00713"></a><span class="lineno"> 713</span> L4Re::virt_cap_alloc->take(fds);</div>
|
|
<div class="line"><a id="l00714" name="l00714"></a><span class="lineno"> 714</span> ds = <a class="code hl_typedef" href="namespaceL4Re.html#a8246219e47e489b13fb5f2dde553a6e4">L4Re::Shared_cap<L4Re::Dataspace></a>(fds, L4Re::virt_cap_alloc);</div>
|
|
<div class="line"><a id="l00715" name="l00715"></a><span class="lineno"> 715</span> }</div>
|
|
<div class="line"><a id="l00716" name="l00716"></a><span class="lineno"> 716</span> }</div>
|
|
<div class="line"><a id="l00717" name="l00717"></a><span class="lineno"> 717</span> <span class="keywordflow">else</span></div>
|
|
<div class="line"><a id="l00718" name="l00718"></a><span class="lineno"> 718</span> {</div>
|
|
<div class="line"><a id="l00719" name="l00719"></a><span class="lineno"> 719</span> offset = anon_offset;</div>
|
|
<div class="line"><a id="l00720" name="l00720"></a><span class="lineno"> 720</span> region_name = <span class="stringliteral">"[anon]"</span>;</div>
|
|
<div class="line"><a id="l00721" name="l00721"></a><span class="lineno"> 721</span> file_offset = offset;</div>
|
|
<div class="line"><a id="l00722" name="l00722"></a><span class="lineno"> 722</span> }</div>
|
|
<div class="line"><a id="l00723" name="l00723"></a><span class="lineno"> 723</span> </div>
|
|
<div class="line"><a id="l00724" name="l00724"></a><span class="lineno"> 724</span> </div>
|
|
<div class="line"><a id="l00725" name="l00725"></a><span class="lineno"> 725</span> <span class="keywordflow">if</span> (!(flags & MAP_FIXED) && start == 0)</div>
|
|
<div class="line"><a id="l00726" name="l00726"></a><span class="lineno"> 726</span> start = <span class="keyword">reinterpret_cast<</span><span class="keywordtype">void</span>*<span class="keyword">></span>(<a class="code hl_define" href="group__l4__memory__api.html#gabecf862d8b8f39ad28af45d7fc949dd5">L4_PAGESIZE</a>);</div>
|
|
<div class="line"><a id="l00727" name="l00727"></a><span class="lineno"> 727</span> </div>
|
|
<div class="line"><a id="l00728" name="l00728"></a><span class="lineno"> 728</span> <span class="keywordtype">char</span> *data = <span class="keyword">static_cast<</span><span class="keywordtype">char</span> *<span class="keyword">></span>(start);</div>
|
|
<div class="line"><a id="l00729" name="l00729"></a><span class="lineno"> 729</span> L4::Cap<Rm> r = Env::env()->rm();</div>
|
|
<div class="line"><a id="l00730" name="l00730"></a><span class="lineno"> 730</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> overmap_area = <a class="code hl_enumvalue" href="group__l4__memory__api.html#gga5cbba3eb068bbd8339e70dfc40d018a9ab57b8e497dd882e24a3f85c4521cc7cb">L4_INVALID_ADDR</a>;</div>
|
|
<div class="line"><a id="l00731" name="l00731"></a><span class="lineno"> 731</span> </div>
|
|
<div class="line"><a id="l00732" name="l00732"></a><span class="lineno"> 732</span> <span class="keywordtype">int</span> err;</div>
|
|
<div class="line"><a id="l00733" name="l00733"></a><span class="lineno"> 733</span> <span class="keywordflow">if</span> (flags & MAP_FIXED)</div>
|
|
<div class="line"><a id="l00734" name="l00734"></a><span class="lineno"> 734</span> {</div>
|
|
<div class="line"><a id="l00735" name="l00735"></a><span class="lineno"> 735</span> overmap_area = <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a>(start);</div>
|
|
<div class="line"><a id="l00736" name="l00736"></a><span class="lineno"> 736</span> </div>
|
|
<div class="line"><a id="l00737" name="l00737"></a><span class="lineno"> 737</span> err = r->reserve_area(&overmap_area, len);</div>
|
|
<div class="line"><a id="l00738" name="l00738"></a><span class="lineno"> 738</span> <span class="keywordflow">if</span> (err < 0)</div>
|
|
<div class="line"><a id="l00739" name="l00739"></a><span class="lineno"> 739</span> overmap_area = <a class="code hl_enumvalue" href="group__l4__memory__api.html#gga5cbba3eb068bbd8339e70dfc40d018a9ab57b8e497dd882e24a3f85c4521cc7cb">L4_INVALID_ADDR</a>;</div>
|
|
<div class="line"><a id="l00740" name="l00740"></a><span class="lineno"> 740</span> </div>
|
|
<div class="line"><a id="l00741" name="l00741"></a><span class="lineno"> 741</span> rm_flags |= <a class="code hl_enumvalue" href="structRm_1_1F.html#adec4d26077e34d9586891ac0489e0041af80cdbdea8dc3a8e155be2ad2c3e5579">Rm::F::In_area</a>;</div>
|
|
<div class="line"><a id="l00742" name="l00742"></a><span class="lineno"> 742</span> </div>
|
|
<div class="line"><a id="l00743" name="l00743"></a><span class="lineno"> 743</span> <span class="comment">// Make sure to remove old mappings residing at the respective address </span></div>
|
|
<div class="line"><a id="l00744" name="l00744"></a><span class="lineno"> 744</span> <span class="comment">// range. If none exists, we are fine as well, allowing us to ignore</span></div>
|
|
<div class="line"><a id="l00745" name="l00745"></a><span class="lineno"> 745</span> <span class="comment">// ENOENT here.</span></div>
|
|
<div class="line"><a id="l00746" name="l00746"></a><span class="lineno"> 746</span> err = munmap_regions(start, len);</div>
|
|
<div class="line"><a id="l00747" name="l00747"></a><span class="lineno"> 747</span> <span class="keywordflow">if</span> (err && err != -ENOENT)</div>
|
|
<div class="line"><a id="l00748" name="l00748"></a><span class="lineno"> 748</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00749" name="l00749"></a><span class="lineno"> 749</span> }</div>
|
|
<div class="line"><a id="l00750" name="l00750"></a><span class="lineno"> 750</span> </div>
|
|
<div class="line"><a id="l00751" name="l00751"></a><span class="lineno"> 751</span> <span class="keywordflow">if</span> (!(flags & MAP_FIXED))</div>
|
|
<div class="line"><a id="l00752" name="l00752"></a><span class="lineno"> 752</span> rm_flags |= <a class="code hl_enumvalue" href="structRm_1_1F.html#adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a">Rm::F::Search_addr</a>;</div>
|
|
<div class="line"><a id="l00753" name="l00753"></a><span class="lineno"> 753</span> <span class="keywordflow">if</span> (prot & PROT_READ)</div>
|
|
<div class="line"><a id="l00754" name="l00754"></a><span class="lineno"> 754</span> rm_flags |= <a class="code hl_enumvalue" href="structRm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a6c0c069e0eca980069382cf52276815b">Rm::F::R</a>;</div>
|
|
<div class="line"><a id="l00755" name="l00755"></a><span class="lineno"> 755</span> <span class="keywordflow">if</span> (prot & PROT_WRITE)</div>
|
|
<div class="line"><a id="l00756" name="l00756"></a><span class="lineno"> 756</span> rm_flags |= <a class="code hl_enumvalue" href="structRm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a7a5548a6185bfa97c1b41ef92ab40bc5">Rm::F::W</a>;</div>
|
|
<div class="line"><a id="l00757" name="l00757"></a><span class="lineno"> 757</span> <span class="keywordflow">if</span> (prot & PROT_EXEC)</div>
|
|
<div class="line"><a id="l00758" name="l00758"></a><span class="lineno"> 758</span> rm_flags |= <a class="code hl_enumvalue" href="structRm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a63d81cc85db6cf2402a402489c663506">Rm::F::X</a>;</div>
|
|
<div class="line"><a id="l00759" name="l00759"></a><span class="lineno"> 759</span> </div>
|
|
<div class="line"><a id="l00760" name="l00760"></a><span class="lineno"> 760</span> err = r->attach(&data, len, rm_flags,</div>
|
|
<div class="line"><a id="l00761" name="l00761"></a><span class="lineno"> 761</span> <a class="code hl_function" href="namespaceL4_1_1Ipc.html#a2bad64d85342191b358597cd08e55574">L4::Ipc::make_cap</a>(ds.get(), (prot & PROT_WRITE)</div>
|
|
<div class="line"><a id="l00762" name="l00762"></a><span class="lineno"> 762</span> ? <a class="code hl_enumvalue" href="group__l4__fpage__api.html#ggaee60789a48cab2782f5a368237591b39a3cca0a716e3eb64c770567932460203f">L4_CAP_FPAGE_RW</a></div>
|
|
<div class="line"><a id="l00763" name="l00763"></a><span class="lineno"> 763</span> : <a class="code hl_enumvalue" href="group__l4__fpage__api.html#ggaee60789a48cab2782f5a368237591b39a11c1416f531fdb44d1d02c3de2fcb3e8">L4_CAP_FPAGE_RO</a>),</div>
|
|
<div class="line"><a id="l00764" name="l00764"></a><span class="lineno"> 764</span> offset, <a class="code hl_define" href="group__l4__memory__api.html#gad2f7e71d6265b2735f730dc90c54539a">L4_PAGESHIFT</a>, <a class="code hl_enumvalue" href="classL4_1_1Cap__base.html#ac74dbedb04347341ba30ece923c12fe7af425c8e16afcd760ecb1f30bd6c1437a">L4::Cap<L4::Task>::Invalid</a>,</div>
|
|
<div class="line"><a id="l00765" name="l00765"></a><span class="lineno"> 765</span> region_name, file_offset);</div>
|
|
<div class="line"><a id="l00766" name="l00766"></a><span class="lineno"> 766</span> </div>
|
|
<div class="line"><a id="l00767" name="l00767"></a><span class="lineno"> 767</span> DEBUG_LOG(debug_mmap, {</div>
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|
<div class="line"><a id="l00768" name="l00768"></a><span class="lineno"> 768</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">" MAPPED: 0x"</span>);</div>
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|
<div class="line"><a id="l00769" name="l00769"></a><span class="lineno"> 769</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(ds.<a class="code hl_function" href="classL4_1_1Cap__base.html#a90ff089ca2442b128c2b2b0e1c22c6d7">cap</a>());</div>
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|
<div class="line"><a id="l00770" name="l00770"></a><span class="lineno"> 770</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">" addr: 0x"</span>);</div>
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|
<div class="line"><a id="l00771" name="l00771"></a><span class="lineno"> 771</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(<a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a>(data));</div>
|
|
<div class="line"><a id="l00772" name="l00772"></a><span class="lineno"> 772</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">" bytes: 0x"</span>);</div>
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|
<div class="line"><a id="l00773" name="l00773"></a><span class="lineno"> 773</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(len);</div>
|
|
<div class="line"><a id="l00774" name="l00774"></a><span class="lineno"> 774</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">" offset: 0x"</span>);</div>
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|
<div class="line"><a id="l00775" name="l00775"></a><span class="lineno"> 775</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(offset);</div>
|
|
<div class="line"><a id="l00776" name="l00776"></a><span class="lineno"> 776</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">" err = "</span>);</div>
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|
<div class="line"><a id="l00777" name="l00777"></a><span class="lineno"> 777</span> <a class="code hl_function" href="kdebug_8h.html#a890c2a20abb8142bd6491916ecb29455">outdec</a>(err);</div>
|
|
<div class="line"><a id="l00778" name="l00778"></a><span class="lineno"> 778</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">"\n"</span>);</div>
|
|
<div class="line"><a id="l00779" name="l00779"></a><span class="lineno"> 779</span> });</div>
|
|
<div class="line"><a id="l00780" name="l00780"></a><span class="lineno"> 780</span> </div>
|
|
<div class="line"><a id="l00781" name="l00781"></a><span class="lineno"> 781</span> </div>
|
|
<div class="line"><a id="l00782" name="l00782"></a><span class="lineno"> 782</span> <span class="keywordflow">if</span> (overmap_area != <a class="code hl_enumvalue" href="group__l4__memory__api.html#gga5cbba3eb068bbd8339e70dfc40d018a9ab57b8e497dd882e24a3f85c4521cc7cb">L4_INVALID_ADDR</a>)</div>
|
|
<div class="line"><a id="l00783" name="l00783"></a><span class="lineno"> 783</span> r->free_area(overmap_area);</div>
|
|
<div class="line"><a id="l00784" name="l00784"></a><span class="lineno"> 784</span> </div>
|
|
<div class="line"><a id="l00785" name="l00785"></a><span class="lineno"> 785</span> <span class="keywordflow">if</span> (err < 0)</div>
|
|
<div class="line"><a id="l00786" name="l00786"></a><span class="lineno"> 786</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00787" name="l00787"></a><span class="lineno"> 787</span> </div>
|
|
<div class="line"><a id="l00788" name="l00788"></a><span class="lineno"> 788</span> <a class="code hl_define" href="sys_2assert_8h.html#a01be6aeab808dab408e341a7a8bd17a6">l4_assert</a> (!(start && !data));</div>
|
|
<div class="line"><a id="l00789" name="l00789"></a><span class="lineno"> 789</span> </div>
|
|
<div class="line"><a id="l00790" name="l00790"></a><span class="lineno"> 790</span> <span class="comment">// release ownership of the attached DS</span></div>
|
|
<div class="line"><a id="l00791" name="l00791"></a><span class="lineno"> 791</span> ds.release();</div>
|
|
<div class="line"><a id="l00792" name="l00792"></a><span class="lineno"> 792</span> *resptr = data;</div>
|
|
<div class="line"><a id="l00793" name="l00793"></a><span class="lineno"> 793</span> </div>
|
|
<div class="line"><a id="l00794" name="l00794"></a><span class="lineno"> 794</span> <span class="keywordflow">return</span> 0;</div>
|
|
<div class="line"><a id="l00795" name="l00795"></a><span class="lineno"> 795</span>}</div>
|
|
<div class="line"><a id="l00796" name="l00796"></a><span class="lineno"> 796</span> </div>
|
|
<div class="line"><a id="l00797" name="l00797"></a><span class="lineno"> 797</span><span class="keyword">namespace </span>{</div>
|
|
<div class="line"><a id="l00798" name="l00798"></a><span class="lineno"> 798</span> <span class="keyword">class </span>Auto_area</div>
|
|
<div class="line"><a id="l00799" name="l00799"></a><span class="lineno"> 799</span> {</div>
|
|
<div class="line"><a id="l00800" name="l00800"></a><span class="lineno"> 800</span> <span class="keyword">public</span>:</div>
|
|
<div class="line"><a id="l00801" name="l00801"></a><span class="lineno"> 801</span> L4::Cap<L4Re::Rm> r;</div>
|
|
<div class="line"><a id="l00802" name="l00802"></a><span class="lineno"> 802</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> a;</div>
|
|
<div class="line"><a id="l00803" name="l00803"></a><span class="lineno"> 803</span> </div>
|
|
<div class="line"><a id="l00804" name="l00804"></a><span class="lineno"> 804</span> <span class="keyword">explicit</span> Auto_area(L4::Cap<L4Re::Rm> r, <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> a = <a class="code hl_enumvalue" href="group__l4__memory__api.html#gga5cbba3eb068bbd8339e70dfc40d018a9ab57b8e497dd882e24a3f85c4521cc7cb">L4_INVALID_ADDR</a>)</div>
|
|
<div class="line"><a id="l00805" name="l00805"></a><span class="lineno"> 805</span> : r(r), a(a) {}</div>
|
|
<div class="line"><a id="l00806" name="l00806"></a><span class="lineno"> 806</span> </div>
|
|
<div class="line"><a id="l00807" name="l00807"></a><span class="lineno"> 807</span> <span class="keywordtype">int</span> reserve(<a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> _a, <a class="code hl_typedef" href="group__l4__basic__types.html#ga08c1e83a068ded7add134b188cd44967">l4_size_t</a> sz, L4Re::Rm::Flags flags)</div>
|
|
<div class="line"><a id="l00808" name="l00808"></a><span class="lineno"> 808</span> {</div>
|
|
<div class="line"><a id="l00809" name="l00809"></a><span class="lineno"> 809</span> free();</div>
|
|
<div class="line"><a id="l00810" name="l00810"></a><span class="lineno"> 810</span> a = _a;</div>
|
|
<div class="line"><a id="l00811" name="l00811"></a><span class="lineno"> 811</span> <span class="keywordtype">int</span> e = r->reserve_area(&a, sz, flags);</div>
|
|
<div class="line"><a id="l00812" name="l00812"></a><span class="lineno"> 812</span> <span class="keywordflow">if</span> (e)</div>
|
|
<div class="line"><a id="l00813" name="l00813"></a><span class="lineno"> 813</span> a = <a class="code hl_enumvalue" href="group__l4__memory__api.html#gga5cbba3eb068bbd8339e70dfc40d018a9ab57b8e497dd882e24a3f85c4521cc7cb">L4_INVALID_ADDR</a>;</div>
|
|
<div class="line"><a id="l00814" name="l00814"></a><span class="lineno"> 814</span> <span class="keywordflow">return</span> e;</div>
|
|
<div class="line"><a id="l00815" name="l00815"></a><span class="lineno"> 815</span> }</div>
|
|
<div class="line"><a id="l00816" name="l00816"></a><span class="lineno"> 816</span> </div>
|
|
<div class="line"><a id="l00817" name="l00817"></a><span class="lineno"> 817</span> <span class="keywordtype">void</span> free()</div>
|
|
<div class="line"><a id="l00818" name="l00818"></a><span class="lineno"> 818</span> {</div>
|
|
<div class="line"><a id="l00819" name="l00819"></a><span class="lineno"> 819</span> <span class="keywordflow">if</span> (is_valid())</div>
|
|
<div class="line"><a id="l00820" name="l00820"></a><span class="lineno"> 820</span> {</div>
|
|
<div class="line"><a id="l00821" name="l00821"></a><span class="lineno"> 821</span> r->free_area(a);</div>
|
|
<div class="line"><a id="l00822" name="l00822"></a><span class="lineno"> 822</span> a = <a class="code hl_enumvalue" href="group__l4__memory__api.html#gga5cbba3eb068bbd8339e70dfc40d018a9ab57b8e497dd882e24a3f85c4521cc7cb">L4_INVALID_ADDR</a>;</div>
|
|
<div class="line"><a id="l00823" name="l00823"></a><span class="lineno"> 823</span> }</div>
|
|
<div class="line"><a id="l00824" name="l00824"></a><span class="lineno"> 824</span> }</div>
|
|
<div class="line"><a id="l00825" name="l00825"></a><span class="lineno"> 825</span> </div>
|
|
<div class="line"><a id="l00826" name="l00826"></a><span class="lineno"> 826</span> <span class="keywordtype">bool</span> is_valid()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> a != <a class="code hl_enumvalue" href="group__l4__memory__api.html#gga5cbba3eb068bbd8339e70dfc40d018a9ab57b8e497dd882e24a3f85c4521cc7cb">L4_INVALID_ADDR</a>; }</div>
|
|
<div class="line"><a id="l00827" name="l00827"></a><span class="lineno"> 827</span> </div>
|
|
<div class="line"><a id="l00828" name="l00828"></a><span class="lineno"> 828</span> ~Auto_area() { free(); }</div>
|
|
<div class="line"><a id="l00829" name="l00829"></a><span class="lineno"> 829</span> };</div>
|
|
<div class="line"><a id="l00830" name="l00830"></a><span class="lineno"> 830</span>}</div>
|
|
<div class="line"><a id="l00831" name="l00831"></a><span class="lineno"> 831</span> </div>
|
|
<div class="line"><a id="l00832" name="l00832"></a><span class="lineno"> 832</span><span class="keywordtype">int</span></div>
|
|
<div class="line"><a id="l00833" name="l00833"></a><span class="lineno"> 833</span>Vfs::mremap(<span class="keywordtype">void</span> *old_addr, <span class="keywordtype">size_t</span> old_size, <span class="keywordtype">size_t</span> new_size, <span class="keywordtype">int</span> flags,</div>
|
|
<div class="line"><a id="l00834" name="l00834"></a><span class="lineno"> 834</span> <span class="keywordtype">void</span> **new_addr) <a class="code hl_define" href="group__l4sys__defines.html#ga362dfa378e662dd04f710a23fc7ea931">L4_NOTHROW</a></div>
|
|
<div class="line"><a id="l00835" name="l00835"></a><span class="lineno"> 835</span>{</div>
|
|
<div class="line"><a id="l00836" name="l00836"></a><span class="lineno"> 836</span> <span class="keyword">using namespace </span>L4Re;</div>
|
|
<div class="line"><a id="l00837" name="l00837"></a><span class="lineno"> 837</span> </div>
|
|
<div class="line"><a id="l00838" name="l00838"></a><span class="lineno"> 838</span> DEBUG_LOG(debug_mmap, {</div>
|
|
<div class="line"><a id="l00839" name="l00839"></a><span class="lineno"> 839</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">"Mremap: addr = 0x"</span>);</div>
|
|
<div class="line"><a id="l00840" name="l00840"></a><span class="lineno"> 840</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>((<a class="code hl_typedef" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a>)old_addr);</div>
|
|
<div class="line"><a id="l00841" name="l00841"></a><span class="lineno"> 841</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">" old_size = 0x"</span>);</div>
|
|
<div class="line"><a id="l00842" name="l00842"></a><span class="lineno"> 842</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(old_size);</div>
|
|
<div class="line"><a id="l00843" name="l00843"></a><span class="lineno"> 843</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">" new_size = 0x"</span>);</div>
|
|
<div class="line"><a id="l00844" name="l00844"></a><span class="lineno"> 844</span> <a class="code hl_function" href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a>(new_size);</div>
|
|
<div class="line"><a id="l00845" name="l00845"></a><span class="lineno"> 845</span> <a class="code hl_function" href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a>(<span class="stringliteral">"\n"</span>);</div>
|
|
<div class="line"><a id="l00846" name="l00846"></a><span class="lineno"> 846</span> });</div>
|
|
<div class="line"><a id="l00847" name="l00847"></a><span class="lineno"> 847</span> </div>
|
|
<div class="line"><a id="l00848" name="l00848"></a><span class="lineno"> 848</span> <span class="keywordflow">if</span> (flags & MREMAP_FIXED && !(flags & MREMAP_MAYMOVE))</div>
|
|
<div class="line"><a id="l00849" name="l00849"></a><span class="lineno"> 849</span> <span class="keywordflow">return</span> -EINVAL;</div>
|
|
<div class="line"><a id="l00850" name="l00850"></a><span class="lineno"> 850</span> </div>
|
|
<div class="line"><a id="l00851" name="l00851"></a><span class="lineno"> 851</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> oa = <a class="code hl_function" href="group__l4__memory__api.html#ga70b72ae96c18cb49a3445198711bba0d">l4_trunc_page</a>(<span class="keyword">reinterpret_cast<</span><a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a><span class="keyword">></span>(old_addr));</div>
|
|
<div class="line"><a id="l00852" name="l00852"></a><span class="lineno"> 852</span> <span class="keywordflow">if</span> (oa != <span class="keyword">reinterpret_cast<</span><a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a><span class="keyword">></span>(old_addr))</div>
|
|
<div class="line"><a id="l00853" name="l00853"></a><span class="lineno"> 853</span> <span class="keywordflow">return</span> -EINVAL;</div>
|
|
<div class="line"><a id="l00854" name="l00854"></a><span class="lineno"> 854</span> </div>
|
|
<div class="line"><a id="l00855" name="l00855"></a><span class="lineno"> 855</span> <span class="keywordtype">bool</span> <span class="keyword">const</span> fixed = flags & MREMAP_FIXED;</div>
|
|
<div class="line"><a id="l00856" name="l00856"></a><span class="lineno"> 856</span> <span class="keywordtype">bool</span> <span class="keyword">const</span> maymove = flags & MREMAP_MAYMOVE;</div>
|
|
<div class="line"><a id="l00857" name="l00857"></a><span class="lineno"> 857</span> </div>
|
|
<div class="line"><a id="l00858" name="l00858"></a><span class="lineno"> 858</span> L4::Cap<Rm> r = Env::env()->rm();</div>
|
|
<div class="line"><a id="l00859" name="l00859"></a><span class="lineno"> 859</span> </div>
|
|
<div class="line"><a id="l00860" name="l00860"></a><span class="lineno"> 860</span> <span class="comment">// sanitize input parameters to multiples of pages</span></div>
|
|
<div class="line"><a id="l00861" name="l00861"></a><span class="lineno"> 861</span> old_size = <a class="code hl_function" href="group__l4__memory__api.html#ga96e3b2d8e69308aecbb11d1d24f61662">l4_round_page</a>(old_size);</div>
|
|
<div class="line"><a id="l00862" name="l00862"></a><span class="lineno"> 862</span> new_size = <a class="code hl_function" href="group__l4__memory__api.html#ga96e3b2d8e69308aecbb11d1d24f61662">l4_round_page</a>(new_size);</div>
|
|
<div class="line"><a id="l00863" name="l00863"></a><span class="lineno"> 863</span> </div>
|
|
<div class="line"><a id="l00864" name="l00864"></a><span class="lineno"> 864</span> <span class="keywordflow">if</span> (!fixed)</div>
|
|
<div class="line"><a id="l00865" name="l00865"></a><span class="lineno"> 865</span> {</div>
|
|
<div class="line"><a id="l00866" name="l00866"></a><span class="lineno"> 866</span> <span class="keywordflow">if</span> (new_size < old_size)</div>
|
|
<div class="line"><a id="l00867" name="l00867"></a><span class="lineno"> 867</span> {</div>
|
|
<div class="line"><a id="l00868" name="l00868"></a><span class="lineno"> 868</span> *new_addr = old_addr;</div>
|
|
<div class="line"><a id="l00869" name="l00869"></a><span class="lineno"> 869</span> <span class="keywordflow">return</span> munmap(<span class="keyword">reinterpret_cast<</span><span class="keywordtype">void</span>*<span class="keyword">></span>(oa + new_size),</div>
|
|
<div class="line"><a id="l00870" name="l00870"></a><span class="lineno"> 870</span> old_size - new_size);</div>
|
|
<div class="line"><a id="l00871" name="l00871"></a><span class="lineno"> 871</span> }</div>
|
|
<div class="line"><a id="l00872" name="l00872"></a><span class="lineno"> 872</span> </div>
|
|
<div class="line"><a id="l00873" name="l00873"></a><span class="lineno"> 873</span> <span class="keywordflow">if</span> (new_size == old_size)</div>
|
|
<div class="line"><a id="l00874" name="l00874"></a><span class="lineno"> 874</span> {</div>
|
|
<div class="line"><a id="l00875" name="l00875"></a><span class="lineno"> 875</span> *new_addr = old_addr;</div>
|
|
<div class="line"><a id="l00876" name="l00876"></a><span class="lineno"> 876</span> <span class="keywordflow">return</span> 0;</div>
|
|
<div class="line"><a id="l00877" name="l00877"></a><span class="lineno"> 877</span> }</div>
|
|
<div class="line"><a id="l00878" name="l00878"></a><span class="lineno"> 878</span> }</div>
|
|
<div class="line"><a id="l00879" name="l00879"></a><span class="lineno"> 879</span> </div>
|
|
<div class="line"><a id="l00880" name="l00880"></a><span class="lineno"> 880</span> Auto_area old_area(r);</div>
|
|
<div class="line"><a id="l00881" name="l00881"></a><span class="lineno"> 881</span> <span class="keywordtype">int</span> err = old_area.reserve(oa, old_size, L4Re::Rm::Flags(0));</div>
|
|
<div class="line"><a id="l00882" name="l00882"></a><span class="lineno"> 882</span> <span class="keywordflow">if</span> (err < 0)</div>
|
|
<div class="line"><a id="l00883" name="l00883"></a><span class="lineno"> 883</span> <span class="keywordflow">return</span> -EINVAL;</div>
|
|
<div class="line"><a id="l00884" name="l00884"></a><span class="lineno"> 884</span> </div>
|
|
<div class="line"><a id="l00885" name="l00885"></a><span class="lineno"> 885</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> pad_addr;</div>
|
|
<div class="line"><a id="l00886" name="l00886"></a><span class="lineno"> 886</span> Auto_area new_area(r);</div>
|
|
<div class="line"><a id="l00887" name="l00887"></a><span class="lineno"> 887</span> <span class="keywordflow">if</span> (fixed)</div>
|
|
<div class="line"><a id="l00888" name="l00888"></a><span class="lineno"> 888</span> {</div>
|
|
<div class="line"><a id="l00889" name="l00889"></a><span class="lineno"> 889</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> na = <a class="code hl_function" href="group__l4__memory__api.html#ga70b72ae96c18cb49a3445198711bba0d">l4_trunc_page</a>(<span class="keyword">reinterpret_cast<</span><a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a><span class="keyword">></span>(*new_addr));</div>
|
|
<div class="line"><a id="l00890" name="l00890"></a><span class="lineno"> 890</span> <span class="keywordflow">if</span> (na != <span class="keyword">reinterpret_cast<</span><a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a><span class="keyword">></span>(*new_addr))</div>
|
|
<div class="line"><a id="l00891" name="l00891"></a><span class="lineno"> 891</span> <span class="keywordflow">return</span> -EINVAL;</div>
|
|
<div class="line"><a id="l00892" name="l00892"></a><span class="lineno"> 892</span> </div>
|
|
<div class="line"><a id="l00893" name="l00893"></a><span class="lineno"> 893</span> <span class="comment">// check if the current virtual memory area can be expanded</span></div>
|
|
<div class="line"><a id="l00894" name="l00894"></a><span class="lineno"> 894</span> <span class="keywordtype">int</span> err = new_area.reserve(na, new_size, L4Re::Rm::Flags(0));</div>
|
|
<div class="line"><a id="l00895" name="l00895"></a><span class="lineno"> 895</span> <span class="keywordflow">if</span> (err < 0)</div>
|
|
<div class="line"><a id="l00896" name="l00896"></a><span class="lineno"> 896</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00897" name="l00897"></a><span class="lineno"> 897</span> </div>
|
|
<div class="line"><a id="l00898" name="l00898"></a><span class="lineno"> 898</span> pad_addr = na;</div>
|
|
<div class="line"><a id="l00899" name="l00899"></a><span class="lineno"> 899</span> <span class="comment">// unmap all stuff and remap ours ....</span></div>
|
|
<div class="line"><a id="l00900" name="l00900"></a><span class="lineno"> 900</span> }</div>
|
|
<div class="line"><a id="l00901" name="l00901"></a><span class="lineno"> 901</span> <span class="keywordflow">else</span></div>
|
|
<div class="line"><a id="l00902" name="l00902"></a><span class="lineno"> 902</span> {</div>
|
|
<div class="line"><a id="l00903" name="l00903"></a><span class="lineno"> 903</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> ta = oa + old_size;</div>
|
|
<div class="line"><a id="l00904" name="l00904"></a><span class="lineno"> 904</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> ts = new_size - old_size;</div>
|
|
<div class="line"><a id="l00905" name="l00905"></a><span class="lineno"> 905</span> <span class="comment">// check if the current virtual memory area can be expanded</span></div>
|
|
<div class="line"><a id="l00906" name="l00906"></a><span class="lineno"> 906</span> <span class="keywordtype">long</span> err = new_area.reserve(ta, ts, L4Re::Rm::Flags(0));</div>
|
|
<div class="line"><a id="l00907" name="l00907"></a><span class="lineno"> 907</span> <span class="keywordflow">if</span> (!maymove && err)</div>
|
|
<div class="line"><a id="l00908" name="l00908"></a><span class="lineno"> 908</span> <span class="keywordflow">return</span> -ENOMEM;</div>
|
|
<div class="line"><a id="l00909" name="l00909"></a><span class="lineno"> 909</span> </div>
|
|
<div class="line"><a id="l00910" name="l00910"></a><span class="lineno"> 910</span> L4Re::Rm::Offset toffs;</div>
|
|
<div class="line"><a id="l00911" name="l00911"></a><span class="lineno"> 911</span> L4Re::Rm::Flags tflags;</div>
|
|
<div class="line"><a id="l00912" name="l00912"></a><span class="lineno"> 912</span> L4::Cap<L4Re::Dataspace> tds;</div>
|
|
<div class="line"><a id="l00913" name="l00913"></a><span class="lineno"> 913</span> </div>
|
|
<div class="line"><a id="l00914" name="l00914"></a><span class="lineno"> 914</span> err = r->find(&ta, &ts, &toffs, &tflags, &tds);</div>
|
|
<div class="line"><a id="l00915" name="l00915"></a><span class="lineno"> 915</span> </div>
|
|
<div class="line"><a id="l00916" name="l00916"></a><span class="lineno"> 916</span> <span class="comment">// there is enough space to expand the mapping in place</span></div>
|
|
<div class="line"><a id="l00917" name="l00917"></a><span class="lineno"> 917</span> <span class="keywordflow">if</span> (err == -ENOENT || (err == 0 && (tflags & <a class="code hl_enumvalue" href="structRm_1_1F.html#adec4d26077e34d9586891ac0489e0041af80cdbdea8dc3a8e155be2ad2c3e5579">Rm::F::In_area</a>)))</div>
|
|
<div class="line"><a id="l00918" name="l00918"></a><span class="lineno"> 918</span> {</div>
|
|
<div class="line"><a id="l00919" name="l00919"></a><span class="lineno"> 919</span> old_area.free(); <span class="comment">// pad at the original address</span></div>
|
|
<div class="line"><a id="l00920" name="l00920"></a><span class="lineno"> 920</span> pad_addr = oa + old_size;</div>
|
|
<div class="line"><a id="l00921" name="l00921"></a><span class="lineno"> 921</span> *new_addr = old_addr;</div>
|
|
<div class="line"><a id="l00922" name="l00922"></a><span class="lineno"> 922</span> }</div>
|
|
<div class="line"><a id="l00923" name="l00923"></a><span class="lineno"> 923</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!maymove)</div>
|
|
<div class="line"><a id="l00924" name="l00924"></a><span class="lineno"> 924</span> <span class="keywordflow">return</span> -ENOMEM;</div>
|
|
<div class="line"><a id="l00925" name="l00925"></a><span class="lineno"> 925</span> <span class="keywordflow">else</span></div>
|
|
<div class="line"><a id="l00926" name="l00926"></a><span class="lineno"> 926</span> {</div>
|
|
<div class="line"><a id="l00927" name="l00927"></a><span class="lineno"> 927</span> <span class="comment">// search for a new area to remap</span></div>
|
|
<div class="line"><a id="l00928" name="l00928"></a><span class="lineno"> 928</span> err = new_area.reserve(0, new_size, <a class="code hl_enumvalue" href="structRm_1_1F.html#adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a">Rm::F::Search_addr</a>);</div>
|
|
<div class="line"><a id="l00929" name="l00929"></a><span class="lineno"> 929</span> <span class="keywordflow">if</span> (err < 0)</div>
|
|
<div class="line"><a id="l00930" name="l00930"></a><span class="lineno"> 930</span> <span class="keywordflow">return</span> -ENOMEM;</div>
|
|
<div class="line"><a id="l00931" name="l00931"></a><span class="lineno"> 931</span> </div>
|
|
<div class="line"><a id="l00932" name="l00932"></a><span class="lineno"> 932</span> pad_addr = new_area.a + old_size;</div>
|
|
<div class="line"><a id="l00933" name="l00933"></a><span class="lineno"> 933</span> *new_addr = <span class="keyword">reinterpret_cast<</span><span class="keywordtype">void</span> *<span class="keyword">></span>(new_area.a);</div>
|
|
<div class="line"><a id="l00934" name="l00934"></a><span class="lineno"> 934</span> }</div>
|
|
<div class="line"><a id="l00935" name="l00935"></a><span class="lineno"> 935</span> }</div>
|
|
<div class="line"><a id="l00936" name="l00936"></a><span class="lineno"> 936</span> </div>
|
|
<div class="line"><a id="l00937" name="l00937"></a><span class="lineno"> 937</span> <span class="keywordflow">if</span> (old_area.is_valid())</div>
|
|
<div class="line"><a id="l00938" name="l00938"></a><span class="lineno"> 938</span> {</div>
|
|
<div class="line"><a id="l00939" name="l00939"></a><span class="lineno"> 939</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> size = old_size;</div>
|
|
<div class="line"><a id="l00940" name="l00940"></a><span class="lineno"> 940</span> </div>
|
|
<div class="line"><a id="l00941" name="l00941"></a><span class="lineno"> 941</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> a = old_area.a;</div>
|
|
<div class="line"><a id="l00942" name="l00942"></a><span class="lineno"> 942</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> s = 1;</div>
|
|
<div class="line"><a id="l00943" name="l00943"></a><span class="lineno"> 943</span> L4Re::Rm::Offset o;</div>
|
|
<div class="line"><a id="l00944" name="l00944"></a><span class="lineno"> 944</span> L4Re::Rm::Flags f;</div>
|
|
<div class="line"><a id="l00945" name="l00945"></a><span class="lineno"> 945</span> L4::Cap<L4Re::Dataspace> ds;</div>
|
|
<div class="line"><a id="l00946" name="l00946"></a><span class="lineno"> 946</span> </div>
|
|
<div class="line"><a id="l00947" name="l00947"></a><span class="lineno"> 947</span> <span class="keywordflow">while</span> (r->find(&a, &s, &o, &f, &ds) >= 0 && !(f & <a class="code hl_enumvalue" href="structRm_1_1F.html#adec4d26077e34d9586891ac0489e0041af80cdbdea8dc3a8e155be2ad2c3e5579">Rm::F::In_area</a>))</div>
|
|
<div class="line"><a id="l00948" name="l00948"></a><span class="lineno"> 948</span> {</div>
|
|
<div class="line"><a id="l00949" name="l00949"></a><span class="lineno"> 949</span> <span class="keywordflow">if</span> (a < old_area.a)</div>
|
|
<div class="line"><a id="l00950" name="l00950"></a><span class="lineno"> 950</span> {</div>
|
|
<div class="line"><a id="l00951" name="l00951"></a><span class="lineno"> 951</span> <span class="keyword">auto</span> d = old_area.a - a;</div>
|
|
<div class="line"><a id="l00952" name="l00952"></a><span class="lineno"> 952</span> a = old_area.a;</div>
|
|
<div class="line"><a id="l00953" name="l00953"></a><span class="lineno"> 953</span> s -= d;</div>
|
|
<div class="line"><a id="l00954" name="l00954"></a><span class="lineno"> 954</span> o += d;</div>
|
|
<div class="line"><a id="l00955" name="l00955"></a><span class="lineno"> 955</span> }</div>
|
|
<div class="line"><a id="l00956" name="l00956"></a><span class="lineno"> 956</span> </div>
|
|
<div class="line"><a id="l00957" name="l00957"></a><span class="lineno"> 957</span> <span class="keywordflow">if</span> (a + s > old_area.a + old_size)</div>
|
|
<div class="line"><a id="l00958" name="l00958"></a><span class="lineno"> 958</span> s = old_area.a + old_size - a;</div>
|
|
<div class="line"><a id="l00959" name="l00959"></a><span class="lineno"> 959</span> </div>
|
|
<div class="line"><a id="l00960" name="l00960"></a><span class="lineno"> 960</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> x = a - old_area.a + new_area.a;</div>
|
|
<div class="line"><a id="l00961" name="l00961"></a><span class="lineno"> 961</span> </div>
|
|
<div class="line"><a id="l00962" name="l00962"></a><span class="lineno"> 962</span> <span class="keywordtype">int</span> err = r->attach(&x, s, <a class="code hl_enumvalue" href="structRm_1_1F.html#adec4d26077e34d9586891ac0489e0041af80cdbdea8dc3a8e155be2ad2c3e5579">Rm::F::In_area</a> | f,</div>
|
|
<div class="line"><a id="l00963" name="l00963"></a><span class="lineno"> 963</span> <a class="code hl_function" href="namespaceL4_1_1Ipc.html#a2bad64d85342191b358597cd08e55574">L4::Ipc::make_cap</a>(ds, f.cap_rights()), o);</div>
|
|
<div class="line"><a id="l00964" name="l00964"></a><span class="lineno"> 964</span> <span class="keywordflow">if</span> (err < 0)</div>
|
|
<div class="line"><a id="l00965" name="l00965"></a><span class="lineno"> 965</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00966" name="l00966"></a><span class="lineno"> 966</span> </div>
|
|
<div class="line"><a id="l00967" name="l00967"></a><span class="lineno"> 967</span> <span class="comment">// count the new attached ds reference</span></div>
|
|
<div class="line"><a id="l00968" name="l00968"></a><span class="lineno"> 968</span> L4Re::virt_cap_alloc->take(ds);</div>
|
|
<div class="line"><a id="l00969" name="l00969"></a><span class="lineno"> 969</span> </div>
|
|
<div class="line"><a id="l00970" name="l00970"></a><span class="lineno"> 970</span> err = r->detach(a, s, &ds, This_task,</div>
|
|
<div class="line"><a id="l00971" name="l00971"></a><span class="lineno"> 971</span> <a class="code hl_enumvalue" href="classRm.html#ab2016b6baa0393491c0cc3ab97eff3afa6d989d18bdfabb32dcd6e75081a43e4a">Rm::Detach_exact</a> | <a class="code hl_enumvalue" href="classRm.html#ab2016b6baa0393491c0cc3ab97eff3afaa259dcd6b4ae942c89166285379d09af">Rm::Detach_keep</a>);</div>
|
|
<div class="line"><a id="l00972" name="l00972"></a><span class="lineno"> 972</span> <span class="keywordflow">if</span> (err < 0)</div>
|
|
<div class="line"><a id="l00973" name="l00973"></a><span class="lineno"> 973</span> <span class="keywordflow">return</span> err;</div>
|
|
<div class="line"><a id="l00974" name="l00974"></a><span class="lineno"> 974</span> </div>
|
|
<div class="line"><a id="l00975" name="l00975"></a><span class="lineno"> 975</span> <span class="keywordflow">switch</span> (err & Rm::Detach_result_mask)</div>
|
|
<div class="line"><a id="l00976" name="l00976"></a><span class="lineno"> 976</span> {</div>
|
|
<div class="line"><a id="l00977" name="l00977"></a><span class="lineno"> 977</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classRm.html#a43a67efc09d07fb2b0ed559184d4a883aa327a69d4932e571c19e48ad5b81d9de">Rm::Split_ds</a>:</div>
|
|
<div class="line"><a id="l00978" name="l00978"></a><span class="lineno"> 978</span> <span class="comment">// add a reference as we split up a mapping</span></div>
|
|
<div class="line"><a id="l00979" name="l00979"></a><span class="lineno"> 979</span> <span class="keywordflow">if</span> (ds.<a class="code hl_function" href="classL4_1_1Cap__base.html#ab4937bb12579c752564f7250760d0bda">is_valid</a>())</div>
|
|
<div class="line"><a id="l00980" name="l00980"></a><span class="lineno"> 980</span> L4Re::virt_cap_alloc->take(ds);</div>
|
|
<div class="line"><a id="l00981" name="l00981"></a><span class="lineno"> 981</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00982" name="l00982"></a><span class="lineno"> 982</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classRm.html#a43a67efc09d07fb2b0ed559184d4a883a06735050c90071a6d5bf1f1f6c49d0e3">Rm::Detached_ds</a>:</div>
|
|
<div class="line"><a id="l00983" name="l00983"></a><span class="lineno"> 983</span> <span class="keywordflow">if</span> (ds.<a class="code hl_function" href="classL4_1_1Cap__base.html#ab4937bb12579c752564f7250760d0bda">is_valid</a>())</div>
|
|
<div class="line"><a id="l00984" name="l00984"></a><span class="lineno"> 984</span> L4Re::virt_cap_alloc->release(ds);</div>
|
|
<div class="line"><a id="l00985" name="l00985"></a><span class="lineno"> 985</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00986" name="l00986"></a><span class="lineno"> 986</span> <span class="keywordflow">default</span>:</div>
|
|
<div class="line"><a id="l00987" name="l00987"></a><span class="lineno"> 987</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00988" name="l00988"></a><span class="lineno"> 988</span> }</div>
|
|
<div class="line"><a id="l00989" name="l00989"></a><span class="lineno"> 989</span> </div>
|
|
<div class="line"><a id="l00990" name="l00990"></a><span class="lineno"> 990</span> <span class="keywordflow">if</span> (size <= s)</div>
|
|
<div class="line"><a id="l00991" name="l00991"></a><span class="lineno"> 991</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00992" name="l00992"></a><span class="lineno"> 992</span> a += s;</div>
|
|
<div class="line"><a id="l00993" name="l00993"></a><span class="lineno"> 993</span> size -= s;</div>
|
|
<div class="line"><a id="l00994" name="l00994"></a><span class="lineno"> 994</span> s = 1;</div>
|
|
<div class="line"><a id="l00995" name="l00995"></a><span class="lineno"> 995</span> }</div>
|
|
<div class="line"><a id="l00996" name="l00996"></a><span class="lineno"> 996</span> </div>
|
|
<div class="line"><a id="l00997" name="l00997"></a><span class="lineno"> 997</span> old_area.free();</div>
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<div class="line"><a id="l00998" name="l00998"></a><span class="lineno"> 998</span> }</div>
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<div class="line"><a id="l00999" name="l00999"></a><span class="lineno"> 999</span> </div>
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<div class="line"><a id="l01000" name="l01000"></a><span class="lineno"> 1000</span> <span class="keywordflow">if</span> (old_size < new_size)</div>
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<div class="line"><a id="l01001" name="l01001"></a><span class="lineno"> 1001</span> {</div>
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<div class="line"><a id="l01002" name="l01002"></a><span class="lineno"> 1002</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> <span class="keyword">const</span> pad_sz = new_size - old_size;</div>
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<div class="line"><a id="l01003" name="l01003"></a><span class="lineno"> 1003</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a> toffs;</div>
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<div class="line"><a id="l01004" name="l01004"></a><span class="lineno"> 1004</span> <a class="code hl_typedef" href="namespaceL4Re.html#a8246219e47e489b13fb5f2dde553a6e4">L4Re::Shared_cap<L4Re::Dataspace></a> tds;</div>
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<div class="line"><a id="l01005" name="l01005"></a><span class="lineno"> 1005</span> <span class="keywordtype">int</span> err = alloc_anon_mem(pad_sz, &tds, &toffs);</div>
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|
<div class="line"><a id="l01006" name="l01006"></a><span class="lineno"> 1006</span> <span class="keywordflow">if</span> (err)</div>
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<div class="line"><a id="l01007" name="l01007"></a><span class="lineno"> 1007</span> <span class="keywordflow">return</span> err;</div>
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<div class="line"><a id="l01008" name="l01008"></a><span class="lineno"> 1008</span> </div>
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<div class="line"><a id="l01009" name="l01009"></a><span class="lineno"> 1009</span> <span class="comment">// FIXME: must get the protection rights from the old</span></div>
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<div class="line"><a id="l01010" name="l01010"></a><span class="lineno"> 1010</span> <span class="comment">// mapping and use the same here, for now just use RWX</span></div>
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<div class="line"><a id="l01011" name="l01011"></a><span class="lineno"> 1011</span> err = r->attach(&pad_addr, pad_sz,</div>
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<div class="line"><a id="l01012" name="l01012"></a><span class="lineno"> 1012</span> <a class="code hl_enumvalue" href="structRm_1_1F.html#adec4d26077e34d9586891ac0489e0041af80cdbdea8dc3a8e155be2ad2c3e5579">Rm::F::In_area</a> | <a class="code hl_enumvalue" href="structRm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a73be84e7035cfe1bbed5edbff7116641">Rm::F::Detach_free</a> | <a class="code hl_enumvalue" href="structRm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a50f9d0c739422ab276b705298248aa0d">Rm::F::RWX</a>,</div>
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|
<div class="line"><a id="l01013" name="l01013"></a><span class="lineno"> 1013</span> <a class="code hl_function" href="namespaceL4_1_1Ipc.html#aa6b9422f850eb175240c9d18c5cc708c">L4::Ipc::make_cap_rw</a>(tds.get()), toffs);</div>
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|
<div class="line"><a id="l01014" name="l01014"></a><span class="lineno"> 1014</span> <span class="keywordflow">if</span> (err < 0)</div>
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|
<div class="line"><a id="l01015" name="l01015"></a><span class="lineno"> 1015</span> <span class="keywordflow">return</span> err;</div>
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|
<div class="line"><a id="l01016" name="l01016"></a><span class="lineno"> 1016</span> </div>
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|
<div class="line"><a id="l01017" name="l01017"></a><span class="lineno"> 1017</span> <span class="comment">// release ownership of tds, the region map is now the new owner</span></div>
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|
<div class="line"><a id="l01018" name="l01018"></a><span class="lineno"> 1018</span> tds.release();</div>
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|
<div class="line"><a id="l01019" name="l01019"></a><span class="lineno"> 1019</span> }</div>
|
|
<div class="line"><a id="l01020" name="l01020"></a><span class="lineno"> 1020</span> </div>
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|
<div class="line"><a id="l01021" name="l01021"></a><span class="lineno"> 1021</span> <span class="keywordflow">return</span> 0;</div>
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|
<div class="line"><a id="l01022" name="l01022"></a><span class="lineno"> 1022</span>}</div>
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|
<div class="line"><a id="l01023" name="l01023"></a><span class="lineno"> 1023</span> </div>
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|
<div class="line"><a id="l01024" name="l01024"></a><span class="lineno"> 1024</span><span class="keywordtype">int</span></div>
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|
<div class="line"><a id="l01025" name="l01025"></a><span class="lineno"> 1025</span>Vfs::mprotect(<span class="keyword">const</span> <span class="keywordtype">void</span> * <span class="comment">/* a */</span>, <span class="keywordtype">size_t</span> <span class="comment">/* sz */</span>, <span class="keywordtype">int</span> prot) <a class="code hl_define" href="group__l4sys__defines.html#ga362dfa378e662dd04f710a23fc7ea931">L4_NOTHROW</a></div>
|
|
<div class="line"><a id="l01026" name="l01026"></a><span class="lineno"> 1026</span>{</div>
|
|
<div class="line"><a id="l01027" name="l01027"></a><span class="lineno"> 1027</span> <span class="keywordflow">return</span> (prot & PROT_WRITE) ? -1 : 0;</div>
|
|
<div class="line"><a id="l01028" name="l01028"></a><span class="lineno"> 1028</span>}</div>
|
|
<div class="line"><a id="l01029" name="l01029"></a><span class="lineno"> 1029</span> </div>
|
|
<div class="line"><a id="l01030" name="l01030"></a><span class="lineno"> 1030</span><span class="keywordtype">int</span></div>
|
|
<div class="line"><a id="l01031" name="l01031"></a><span class="lineno"> 1031</span>Vfs::msync(<span class="keywordtype">void</span> *, <span class="keywordtype">size_t</span>, <span class="keywordtype">int</span>) <a class="code hl_define" href="group__l4sys__defines.html#ga362dfa378e662dd04f710a23fc7ea931">L4_NOTHROW</a></div>
|
|
<div class="line"><a id="l01032" name="l01032"></a><span class="lineno"> 1032</span>{ <span class="keywordflow">return</span> 0; }</div>
|
|
<div class="line"><a id="l01033" name="l01033"></a><span class="lineno"> 1033</span> </div>
|
|
<div class="line"><a id="l01034" name="l01034"></a><span class="lineno"> 1034</span><span class="keywordtype">int</span></div>
|
|
<div class="line"><a id="l01035" name="l01035"></a><span class="lineno"> 1035</span>Vfs::madvise(<span class="keywordtype">void</span> *, <span class="keywordtype">size_t</span>, <span class="keywordtype">int</span>) <a class="code hl_define" href="group__l4sys__defines.html#ga362dfa378e662dd04f710a23fc7ea931">L4_NOTHROW</a></div>
|
|
<div class="line"><a id="l01036" name="l01036"></a><span class="lineno"> 1036</span>{ <span class="keywordflow">return</span> 0; }</div>
|
|
<div class="line"><a id="l01037" name="l01037"></a><span class="lineno"> 1037</span> </div>
|
|
<div class="line"><a id="l01038" name="l01038"></a><span class="lineno"> 1038</span>}</div>
|
|
<div class="line"><a id="l01039" name="l01039"></a><span class="lineno"> 1039</span> </div>
|
|
<div class="line"><a id="l01040" name="l01040"></a><span class="lineno"> 1040</span><a class="code hl_class" href="classL4Re_1_1Vfs_1_1Ops.html">L4Re::Vfs::Ops</a> *__rtld_l4re_env_posix_vfs_ops;</div>
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|
<div class="line"><a id="l01041" name="l01041"></a><span class="lineno"> 1041</span><span class="keyword">extern</span> <span class="keywordtype">void</span> *l4re_env_posix_vfs_ops __attribute__((alias(<span class="stringliteral">"__rtld_l4re_env_posix_vfs_ops"</span>), visibility(<span class="stringliteral">"default"</span>)));</div>
|
|
<div class="line"><a id="l01042" name="l01042"></a><span class="lineno"> 1042</span> </div>
|
|
<div class="line"><a id="l01043" name="l01043"></a><span class="lineno"> 1043</span><span class="keyword">namespace </span>{</div>
|
|
<div class="line"><a id="l01044" name="l01044"></a><span class="lineno"> 1044</span> <span class="keyword">class </span>Real_mount_tree : <span class="keyword">public</span> L4Re::Vfs::Mount_tree</div>
|
|
<div class="line"><a id="l01045" name="l01045"></a><span class="lineno"> 1045</span> {</div>
|
|
<div class="line"><a id="l01046" name="l01046"></a><span class="lineno"> 1046</span> <span class="keyword">public</span>:</div>
|
|
<div class="line"><a id="l01047" name="l01047"></a><span class="lineno"> 1047</span> <span class="keyword">explicit</span> Real_mount_tree(<span class="keywordtype">char</span> *n) : Mount_tree(n) {}</div>
|
|
<div class="line"><a id="l01048" name="l01048"></a><span class="lineno"> 1048</span> </div>
|
|
<div class="line"><a id="l01049" name="l01049"></a><span class="lineno"> 1049</span> <span class="keywordtype">void</span> *<span class="keyword">operator</span> <span class="keyword">new</span> (<span class="keywordtype">size_t</span> size)</div>
|
|
<div class="line"><a id="l01050" name="l01050"></a><span class="lineno"> 1050</span> { <span class="keywordflow">return</span> __rtld_l4re_env_posix_vfs_ops->malloc(size); }</div>
|
|
<div class="line"><a id="l01051" name="l01051"></a><span class="lineno"> 1051</span> </div>
|
|
<div class="line"><a id="l01052" name="l01052"></a><span class="lineno"> 1052</span> <span class="keywordtype">void</span> <span class="keyword">operator</span> <span class="keyword">delete</span> (<span class="keywordtype">void</span> *mem)</div>
|
|
<div class="line"><a id="l01053" name="l01053"></a><span class="lineno"> 1053</span> { __rtld_l4re_env_posix_vfs_ops->free(mem); }</div>
|
|
<div class="line"><a id="l01054" name="l01054"></a><span class="lineno"> 1054</span> };</div>
|
|
<div class="line"><a id="l01055" name="l01055"></a><span class="lineno"> 1055</span>}</div>
|
|
<div class="line"><a id="l01056" name="l01056"></a><span class="lineno"> 1056</span></div>
|
|
<div class="line"><a id="l01058" name="l01058"></a><span class="lineno"> 1058</span><span class="keywordtype">int</span></div>
|
|
<div class="line"><a id="l01059" name="l01059"></a><span class="lineno"> 1059</span>Vfs::mount(<span class="keywordtype">char</span> <span class="keyword">const</span> *path, <a class="code hl_class" href="classcxx_1_1Ref__ptr.html">cxx::Ref_ptr<L4Re::Vfs::File></a> <span class="keyword">const</span> &dir) <span class="keyword">noexcept</span></div>
|
|
<div class="line"><a id="l01060" name="l01060"></a><span class="lineno"> 1060</span>{</div>
|
|
<div class="line"><a id="l01061" name="l01061"></a><span class="lineno"> 1061</span> <span class="keyword">using </span><a class="code hl_class" href="classL4Re_1_1Vfs_1_1File.html">L4Re::Vfs::File</a>;</div>
|
|
<div class="line"><a id="l01062" name="l01062"></a><span class="lineno"> 1062</span> <span class="keyword">using </span>L4Re::Vfs::Mount_tree;</div>
|
|
<div class="line"><a id="l01063" name="l01063"></a><span class="lineno"> 1063</span> <span class="keyword">using </span>L4Re::Vfs::Path;</div>
|
|
<div class="line"><a id="l01064" name="l01064"></a><span class="lineno"> 1064</span> </div>
|
|
<div class="line"><a id="l01065" name="l01065"></a><span class="lineno"> 1065</span> <a class="code hl_class" href="classcxx_1_1Ref__ptr.html">cxx::Ref_ptr<Mount_tree></a> root = get_root()->mount_tree();</div>
|
|
<div class="line"><a id="l01066" name="l01066"></a><span class="lineno"> 1066</span> <span class="keywordflow">if</span> (!root)</div>
|
|
<div class="line"><a id="l01067" name="l01067"></a><span class="lineno"> 1067</span> <span class="keywordflow">return</span> -EINVAL;</div>
|
|
<div class="line"><a id="l01068" name="l01068"></a><span class="lineno"> 1068</span> </div>
|
|
<div class="line"><a id="l01069" name="l01069"></a><span class="lineno"> 1069</span> <a class="code hl_class" href="classcxx_1_1Ref__ptr.html">cxx::Ref_ptr<Mount_tree></a> base;</div>
|
|
<div class="line"><a id="l01070" name="l01070"></a><span class="lineno"> 1070</span> Path p = root->lookup(Path(path), &base);</div>
|
|
<div class="line"><a id="l01071" name="l01071"></a><span class="lineno"> 1071</span> </div>
|
|
<div class="line"><a id="l01072" name="l01072"></a><span class="lineno"> 1072</span> <span class="keywordflow">while</span> (!p.empty())</div>
|
|
<div class="line"><a id="l01073" name="l01073"></a><span class="lineno"> 1073</span> {</div>
|
|
<div class="line"><a id="l01074" name="l01074"></a><span class="lineno"> 1074</span> Path f = p.strip_first();</div>
|
|
<div class="line"><a id="l01075" name="l01075"></a><span class="lineno"> 1075</span> </div>
|
|
<div class="line"><a id="l01076" name="l01076"></a><span class="lineno"> 1076</span> <span class="keywordflow">if</span> (f.empty())</div>
|
|
<div class="line"><a id="l01077" name="l01077"></a><span class="lineno"> 1077</span> <span class="keywordflow">return</span> -EEXIST;</div>
|
|
<div class="line"><a id="l01078" name="l01078"></a><span class="lineno"> 1078</span> </div>
|
|
<div class="line"><a id="l01079" name="l01079"></a><span class="lineno"> 1079</span> <span class="keywordtype">char</span> *name = __rtld_l4re_env_posix_vfs_ops->strndup(f.path(), f.length());</div>
|
|
<div class="line"><a id="l01080" name="l01080"></a><span class="lineno"> 1080</span> <span class="keywordflow">if</span> (!name)</div>
|
|
<div class="line"><a id="l01081" name="l01081"></a><span class="lineno"> 1081</span> <span class="keywordflow">return</span> -ENOMEM;</div>
|
|
<div class="line"><a id="l01082" name="l01082"></a><span class="lineno"> 1082</span> </div>
|
|
<div class="line"><a id="l01083" name="l01083"></a><span class="lineno"> 1083</span> <span class="keyword">auto</span> nt = cxx::make_ref_obj<Real_mount_tree>(name);</div>
|
|
<div class="line"><a id="l01084" name="l01084"></a><span class="lineno"> 1084</span> <span class="keywordflow">if</span> (!nt)</div>
|
|
<div class="line"><a id="l01085" name="l01085"></a><span class="lineno"> 1085</span> {</div>
|
|
<div class="line"><a id="l01086" name="l01086"></a><span class="lineno"> 1086</span> __rtld_l4re_env_posix_vfs_ops->free(name);</div>
|
|
<div class="line"><a id="l01087" name="l01087"></a><span class="lineno"> 1087</span> <span class="keywordflow">return</span> -ENOMEM;</div>
|
|
<div class="line"><a id="l01088" name="l01088"></a><span class="lineno"> 1088</span> }</div>
|
|
<div class="line"><a id="l01089" name="l01089"></a><span class="lineno"> 1089</span> </div>
|
|
<div class="line"><a id="l01090" name="l01090"></a><span class="lineno"> 1090</span> base->add_child_node(nt);</div>
|
|
<div class="line"><a id="l01091" name="l01091"></a><span class="lineno"> 1091</span> base = nt;</div>
|
|
<div class="line"><a id="l01092" name="l01092"></a><span class="lineno"> 1092</span> </div>
|
|
<div class="line"><a id="l01093" name="l01093"></a><span class="lineno"> 1093</span> <span class="keywordflow">if</span> (p.empty())</div>
|
|
<div class="line"><a id="l01094" name="l01094"></a><span class="lineno"> 1094</span> {</div>
|
|
<div class="line"><a id="l01095" name="l01095"></a><span class="lineno"> 1095</span> nt->mount(dir);</div>
|
|
<div class="line"><a id="l01096" name="l01096"></a><span class="lineno"> 1096</span> <span class="keywordflow">return</span> 0;</div>
|
|
<div class="line"><a id="l01097" name="l01097"></a><span class="lineno"> 1097</span> }</div>
|
|
<div class="line"><a id="l01098" name="l01098"></a><span class="lineno"> 1098</span> }</div>
|
|
<div class="line"><a id="l01099" name="l01099"></a><span class="lineno"> 1099</span> </div>
|
|
<div class="line"><a id="l01100" name="l01100"></a><span class="lineno"> 1100</span> <span class="keywordflow">return</span> -EINVAL;</div>
|
|
<div class="line"><a id="l01101" name="l01101"></a><span class="lineno"> 1101</span>}</div>
|
|
<div class="line"><a id="l01102" name="l01102"></a><span class="lineno"> 1102</span> </div>
|
|
<div class="line"><a id="l01103" name="l01103"></a><span class="lineno"> 1103</span><span class="preprocessor">#undef DEBUG_LOG</span></div>
|
|
<div class="line"><a id="l01104" name="l01104"></a><span class="lineno"> 1104</span><span class="preprocessor">#undef GET_FILE_DBG</span></div>
|
|
<div class="line"><a id="l01105" name="l01105"></a><span class="lineno"> 1105</span><span class="preprocessor">#undef GET_FILE</span></div>
|
|
<div class="ttc" id="aclassL4Re_1_1Env_html_a2706ca11e70845b0a29a5646c9fd54bc"><div class="ttname"><a href="classL4Re_1_1Env.html#a2706ca11e70845b0a29a5646c9fd54bc">L4Re::Env::env</a></div><div class="ttdeci">static Env const * env() noexcept</div><div class="ttdoc">Returns the initial environment for the current task.</div><div class="ttdef"><b>Definition</b> <a href="env_source.html#l00096">env:96</a></div></div>
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<div class="ttc" id="aclassL4Re_1_1Rm_html"><div class="ttname"><a href="classL4Re_1_1Rm.html">L4Re::Rm</a></div><div class="ttdoc">Region map.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00081">rm:84</a></div></div>
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<div class="ttc" id="aclassL4Re_1_1Vfs_1_1File_html"><div class="ttname"><a href="classL4Re_1_1Vfs_1_1File.html">L4Re::Vfs::File</a></div><div class="ttdoc">The basic interface for an open POSIX file.</div><div class="ttdef"><b>Definition</b> <a href="vfs_8h_source.html#l00455">vfs.h:461</a></div></div>
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<div class="ttc" id="aclassL4Re_1_1Vfs_1_1Ops_html"><div class="ttname"><a href="classL4Re_1_1Vfs_1_1Ops.html">L4Re::Vfs::Ops</a></div><div class="ttdoc">Interface for the POSIX backends of an application.</div><div class="ttdef"><b>Definition</b> <a href="vfs_8h_source.html#l01109">vfs.h:1110</a></div></div>
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|
<div class="ttc" id="aclassL4_1_1Cap__base_html_a90ff089ca2442b128c2b2b0e1c22c6d7"><div class="ttname"><a href="classL4_1_1Cap__base.html#a90ff089ca2442b128c2b2b0e1c22c6d7">L4::Cap_base::cap</a></div><div class="ttdeci">l4_cap_idx_t cap() const noexcept</div><div class="ttdoc">Return capability selector.</div><div class="ttdef"><b>Definition</b> <a href="capability_8h_source.html#l00049">capability.h:49</a></div></div>
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<div class="ttc" id="aclassL4_1_1Cap__base_html_ab4937bb12579c752564f7250760d0bda"><div class="ttname"><a href="classL4_1_1Cap__base.html#ab4937bb12579c752564f7250760d0bda">L4::Cap_base::is_valid</a></div><div class="ttdeci">bool is_valid() const noexcept</div><div class="ttdoc">Test whether the capability is a valid capability index (i.e., not L4_INVALID_CAP).</div><div class="ttdef"><b>Definition</b> <a href="capability_8h_source.html#l00057">capability.h:57</a></div></div>
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<div class="ttc" id="aclassL4_1_1Cap__base_html_ac74dbedb04347341ba30ece923c12fe7af425c8e16afcd760ecb1f30bd6c1437a"><div class="ttname"><a href="classL4_1_1Cap__base.html#ac74dbedb04347341ba30ece923c12fe7af425c8e16afcd760ecb1f30bd6c1437a">L4::Cap_base::Invalid</a></div><div class="ttdeci">@ Invalid</div><div class="ttdoc">Invalid capability selector.</div><div class="ttdef"><b>Definition</b> <a href="capability_8h_source.html#l00042">capability.h:42</a></div></div>
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<div class="ttc" id="aclassRm_1_1Unique__region_html_a301d5bd597f8c1e3b98bc52659f13dbe"><div class="ttname"><a href="classRm_1_1Unique__region.html#a301d5bd597f8c1e3b98bc52659f13dbe">Rm::Unique_region::get</a></div><div class="ttdeci">T get() const noexcept</div><div class="ttdoc">Return the address.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00509">rm:509</a></div></div>
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<div class="ttc" id="aclassRm_html_a43a67efc09d07fb2b0ed559184d4a883a06735050c90071a6d5bf1f1f6c49d0e3"><div class="ttname"><a href="classRm.html#a43a67efc09d07fb2b0ed559184d4a883a06735050c90071a6d5bf1f1f6c49d0e3">Rm::Detached_ds</a></div><div class="ttdeci">@ Detached_ds</div><div class="ttdoc">Detached data sapce.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00091">rm:91</a></div></div>
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<div class="ttc" id="aclassRm_html_a43a67efc09d07fb2b0ed559184d4a883a52152fd07767300856c5248edc1a5101"><div class="ttname"><a href="classRm.html#a43a67efc09d07fb2b0ed559184d4a883a52152fd07767300856c5248edc1a5101">Rm::Detach_again</a></div><div class="ttdeci">@ Detach_again</div><div class="ttdoc">Detached data space, more to do.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00096">rm:96</a></div></div>
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<div class="ttc" id="aclassRm_html_a43a67efc09d07fb2b0ed559184d4a883aa327a69d4932e571c19e48ad5b81d9de"><div class="ttname"><a href="classRm.html#a43a67efc09d07fb2b0ed559184d4a883aa327a69d4932e571c19e48ad5b81d9de">Rm::Split_ds</a></div><div class="ttdeci">@ Split_ds</div><div class="ttdoc">Splitted data space, and done.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00093">rm:93</a></div></div>
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<div class="ttc" id="aclassRm_html_ab2016b6baa0393491c0cc3ab97eff3afa6d989d18bdfabb32dcd6e75081a43e4a"><div class="ttname"><a href="classRm.html#ab2016b6baa0393491c0cc3ab97eff3afa6d989d18bdfabb32dcd6e75081a43e4a">Rm::Detach_exact</a></div><div class="ttdeci">@ Detach_exact</div><div class="ttdoc">Do an unmap of the exact region given.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00232">rm:232</a></div></div>
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<div class="ttc" id="aclassRm_html_ab2016b6baa0393491c0cc3ab97eff3afaa259dcd6b4ae942c89166285379d09af"><div class="ttname"><a href="classRm.html#ab2016b6baa0393491c0cc3ab97eff3afaa259dcd6b4ae942c89166285379d09af">Rm::Detach_keep</a></div><div class="ttdeci">@ Detach_keep</div><div class="ttdoc">Do not free the detached data space, ignore the F::Detach_free.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00251">rm:251</a></div></div>
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<div class="ttc" id="aclasscxx_1_1Ref__ptr_html"><div class="ttname"><a href="classcxx_1_1Ref__ptr.html">cxx::Ref_ptr</a></div><div class="ttdoc">A reference-counting pointer with automatic cleanup.</div><div class="ttdef"><b>Definition</b> <a href="ref__ptr_source.html#l00070">ref_ptr:71</a></div></div>
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<div class="ttc" id="adataspace_html"><div class="ttname"><a href="dataspace.html">dataspace</a></div><div class="ttdoc">Dataspace interface.</div></div>
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<div class="ttc" id="aenv_html"><div class="ttname"><a href="env.html">env</a></div><div class="ttdoc">Environment interface.</div></div>
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<div class="ttc" id="agroup__l4__basic__types_html_ga08c1e83a068ded7add134b188cd44967"><div class="ttname"><a href="group__l4__basic__types.html#ga08c1e83a068ded7add134b188cd44967">l4_size_t</a></div><div class="ttdeci">unsigned int l4_size_t</div><div class="ttdoc">Unsigned size type.</div><div class="ttdef"><b>Definition</b> <a href="arm_2l4_2sys_2l4int_8h_source.html#l00024">l4int.h:24</a></div></div>
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<div class="ttc" id="agroup__l4__basic__types_html_ga1c2c4b333f75b1d05b59855910f2b9cb"><div class="ttname"><a href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a></div><div class="ttdeci">unsigned long l4_umword_t</div><div class="ttdoc">Unsigned machine word.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2l4int_8h_source.html#l00040">l4int.h:40</a></div></div>
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<div class="ttc" id="agroup__l4__basic__types_html_ga4087b991c40c0d2fcde9ca331049a4d4"><div class="ttname"><a href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a></div><div class="ttdeci">unsigned long l4_addr_t</div><div class="ttdoc">Address type.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2l4int_8h_source.html#l00034">l4int.h:34</a></div></div>
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<div class="ttc" id="agroup__l4__error__api_html_ggab4c8abc71ffa221a25c1ca5840a354f9a54ddbebc30b661c87177b968a77588b8"><div class="ttname"><a href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9a54ddbebc30b661c87177b968a77588b8">L4_EINVAL</a></div><div class="ttdeci">@ L4_EINVAL</div><div class="ttdoc">Invalid argument.</div><div class="ttdef"><b>Definition</b> <a href="err_8h_source.html#l00046">err.h:46</a></div></div>
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<div class="ttc" id="agroup__l4__fpage__api_html_ggaee60789a48cab2782f5a368237591b39a11c1416f531fdb44d1d02c3de2fcb3e8"><div class="ttname"><a href="group__l4__fpage__api.html#ggaee60789a48cab2782f5a368237591b39a11c1416f531fdb44d1d02c3de2fcb3e8">L4_CAP_FPAGE_RO</a></div><div class="ttdeci">@ L4_CAP_FPAGE_RO</div><div class="ttdoc">Read right for capability flexpages.</div><div class="ttdef"><b>Definition</b> <a href="____l4__fpage_8h_source.html#l00176">__l4_fpage.h:176</a></div></div>
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<div class="ttc" id="agroup__l4__fpage__api_html_ggaee60789a48cab2782f5a368237591b39a3cca0a716e3eb64c770567932460203f"><div class="ttname"><a href="group__l4__fpage__api.html#ggaee60789a48cab2782f5a368237591b39a3cca0a716e3eb64c770567932460203f">L4_CAP_FPAGE_RW</a></div><div class="ttdeci">@ L4_CAP_FPAGE_RW</div><div class="ttdoc">Read and interface specific 'W' right for capability flexpages.</div><div class="ttdef"><b>Definition</b> <a href="____l4__fpage_8h_source.html#l00192">__l4_fpage.h:192</a></div></div>
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<div class="ttc" id="agroup__l4__memory__api_html_ga70b72ae96c18cb49a3445198711bba0d"><div class="ttname"><a href="group__l4__memory__api.html#ga70b72ae96c18cb49a3445198711bba0d">l4_trunc_page</a></div><div class="ttdeci">l4_addr_t l4_trunc_page(l4_addr_t address) L4_NOTHROW</div><div class="ttdoc">Round an address down to the next lower page boundary.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2consts_8h_source.html#l00448">consts.h:448</a></div></div>
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<div class="ttc" id="agroup__l4__memory__api_html_ga96e3b2d8e69308aecbb11d1d24f61662"><div class="ttname"><a href="group__l4__memory__api.html#ga96e3b2d8e69308aecbb11d1d24f61662">l4_round_page</a></div><div class="ttdeci">l4_addr_t l4_round_page(l4_addr_t address) L4_NOTHROW</div><div class="ttdoc">Round address up to the next page.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2consts_8h_source.html#l00473">consts.h:473</a></div></div>
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<div class="ttc" id="agroup__l4__memory__api_html_gabecf862d8b8f39ad28af45d7fc949dd5"><div class="ttname"><a href="group__l4__memory__api.html#gabecf862d8b8f39ad28af45d7fc949dd5">L4_PAGESIZE</a></div><div class="ttdeci">#define L4_PAGESIZE</div><div class="ttdoc">Minimal page size (in bytes).</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2consts_8h_source.html#l00391">consts.h:391</a></div></div>
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<div class="ttc" id="agroup__l4__memory__api_html_gad2f7e71d6265b2735f730dc90c54539a"><div class="ttname"><a href="group__l4__memory__api.html#gad2f7e71d6265b2735f730dc90c54539a">L4_PAGESHIFT</a></div><div class="ttdeci">#define L4_PAGESHIFT</div><div class="ttdoc">Size of a page, log2-based.</div><div class="ttdef"><b>Definition</b> <a href="arm_2l4_2sys_2consts_8h_source.html#l00026">consts.h:26</a></div></div>
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<div class="ttc" id="agroup__l4__memory__api_html_gga5cbba3eb068bbd8339e70dfc40d018a9ab57b8e497dd882e24a3f85c4521cc7cb"><div class="ttname"><a href="group__l4__memory__api.html#gga5cbba3eb068bbd8339e70dfc40d018a9ab57b8e497dd882e24a3f85c4521cc7cb">L4_INVALID_ADDR</a></div><div class="ttdeci">@ L4_INVALID_ADDR</div><div class="ttdoc">Invalid address.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2consts_8h_source.html#l00505">consts.h:505</a></div></div>
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<div class="ttc" id="agroup__l4sys__defines_html_ga362dfa378e662dd04f710a23fc7ea931"><div class="ttname"><a href="group__l4sys__defines.html#ga362dfa378e662dd04f710a23fc7ea931">L4_NOTHROW</a></div><div class="ttdeci">#define L4_NOTHROW</div><div class="ttdoc">Mark a function declaration and definition as never throwing an exception.</div><div class="ttdef"><b>Definition</b> <a href="compiler_8h_source.html#l00161">compiler.h:161</a></div></div>
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<div class="ttc" id="akdebug_8h_html"><div class="ttname"><a href="kdebug_8h.html">kdebug.h</a></div><div class="ttdoc">Functionality for invoking the kernel debugger.</div></div>
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<div class="ttc" id="akdebug_8h_html_a0ca95852178f7ed5e590e1451e9231cd"><div class="ttname"><a href="kdebug_8h.html#a0ca95852178f7ed5e590e1451e9231cd">outhex32</a></div><div class="ttdeci">void outhex32(l4_uint32_t number)</div><div class="ttdoc">Output a 32-bit unsigned hexadecimal number via the kernel debugger.</div><div class="ttdef"><b>Definition</b> <a href="kdebug_8h_source.html#l00284">kdebug.h:284</a></div></div>
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<div class="ttc" id="akdebug_8h_html_a138dbb0bf857e381e9fb7cd4ef19a5f2"><div class="ttname"><a href="kdebug_8h.html#a138dbb0bf857e381e9fb7cd4ef19a5f2">outstring</a></div><div class="ttdeci">void outstring(char const *text)</div><div class="ttdoc">Output a string via the kernel debugger.</div><div class="ttdef"><b>Definition</b> <a href="kdebug_8h_source.html#l00237">kdebug.h:237</a></div></div>
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<div class="ttc" id="akdebug_8h_html_a890c2a20abb8142bd6491916ecb29455"><div class="ttname"><a href="kdebug_8h.html#a890c2a20abb8142bd6491916ecb29455">outdec</a></div><div class="ttdeci">void outdec(l4_mword_t number)</div><div class="ttdoc">Output a decimal unsigned machine word via the kernel debugger.</div><div class="ttdef"><b>Definition</b> <a href="kdebug_8h_source.html#l00334">kdebug.h:334</a></div></div>
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<div class="ttc" id="anamespaceL4Re_html_a4289d6b17e3c1c85c9f5e90ad1b2de59"><div class="ttname"><a href="namespaceL4Re.html#a4289d6b17e3c1c85c9f5e90ad1b2de59">L4Re::make_shared_cap</a></div><div class="ttdeci">Shared_cap< T > make_shared_cap(L4Re::Cap_alloc *ca)</div><div class="ttdoc">Allocate a capability slot and wrap it in a Shared_cap.</div><div class="ttdef"><b>Definition</b> <a href="shared__cap_source.html#l00049">shared_cap:49</a></div></div>
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<div class="ttc" id="anamespaceL4Re_html_a8246219e47e489b13fb5f2dde553a6e4"><div class="ttname"><a href="namespaceL4Re.html#a8246219e47e489b13fb5f2dde553a6e4">L4Re::Shared_cap</a></div><div class="ttdeci">L4::Detail::Shared_cap_impl< T, Smart_count_cap< L4_FP_ALL_SPACES > > Shared_cap</div><div class="ttdoc">Shared capability that implements automatic free and unmap of the capability selector.</div><div class="ttdef"><b>Definition</b> <a href="shared__cap_source.html#l00033">shared_cap:33</a></div></div>
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<div class="ttc" id="anamespaceL4_1_1Ipc_html_a2bad64d85342191b358597cd08e55574"><div class="ttname"><a href="namespaceL4_1_1Ipc.html#a2bad64d85342191b358597cd08e55574">L4::Ipc::make_cap</a></div><div class="ttdeci">Cap< T > make_cap(L4::Cap< T > cap, unsigned rights) noexcept</div><div class="ttdoc">Make an L4::Ipc::Cap<T> for the given capability and rights.</div><div class="ttdef"><b>Definition</b> <a href="ipc__types_source.html#l00785">ipc_types:785</a></div></div>
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<div class="ttc" id="anamespaceL4_1_1Ipc_html_aa6b9422f850eb175240c9d18c5cc708c"><div class="ttname"><a href="namespaceL4_1_1Ipc.html#aa6b9422f850eb175240c9d18c5cc708c">L4::Ipc::make_cap_rw</a></div><div class="ttdeci">Cap< T > make_cap_rw(L4::Cap< T > cap) noexcept</div><div class="ttdoc">Make an L4::Ipc::Cap<T> for the given capability with L4_CAP_FPAGE_RW rights.</div><div class="ttdef"><b>Definition</b> <a href="ipc__types_source.html#l00795">ipc_types:795</a></div></div>
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<div class="ttc" id="apair_html"><div class="ttname"><a href="pair.html">pair</a></div><div class="ttdoc">Pair implementation.</div></div>
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<div class="ttc" id="arm_html"><div class="ttname"><a href="rm.html">rm</a></div><div class="ttdoc">Region mapper interface.</div></div>
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<div class="ttc" id="ashared__cap_html"><div class="ttname"><a href="shared__cap.html">shared_cap</a></div><div class="ttdoc">Shared_cap / Shared_del_cap.</div></div>
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<div class="ttc" id="astructL4Re_1_1Rm_1_1F_html_a9707a14d822d3f60aa6a97cb16b2a989a579e389b46e438a64f3f44d9cf19f26a"><div class="ttname"><a href="structL4Re_1_1Rm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a579e389b46e438a64f3f44d9cf19f26a">L4Re::Rm::F::RW</a></div><div class="ttdeci">@ RW</div><div class="ttdoc">Readable and writable region.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00139">rm:139</a></div></div>
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<div class="ttc" id="astructL4Re_1_1Rm_1_1F_html_a9707a14d822d3f60aa6a97cb16b2a989a6c0c069e0eca980069382cf52276815b"><div class="ttname"><a href="structL4Re_1_1Rm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a6c0c069e0eca980069382cf52276815b">L4Re::Rm::F::R</a></div><div class="ttdeci">@ R</div><div class="ttdoc">Readable region.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00133">rm:133</a></div></div>
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<div class="ttc" id="astructL4Re_1_1Rm_1_1F_html_a9707a14d822d3f60aa6a97cb16b2a989a73be84e7035cfe1bbed5edbff7116641"><div class="ttname"><a href="structL4Re_1_1Rm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a73be84e7035cfe1bbed5edbff7116641">L4Re::Rm::F::Detach_free</a></div><div class="ttdeci">@ Detach_free</div><div class="ttdoc">Free the portion of the data space after detach.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00148">rm:148</a></div></div>
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<div class="ttc" id="astructL4Re_1_1Rm_1_1F_html_adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a"><div class="ttname"><a href="structL4Re_1_1Rm_1_1F.html#adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a">L4Re::Rm::F::Search_addr</a></div><div class="ttdeci">@ Search_addr</div><div class="ttdoc">Search for a suitable address range.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00114">rm:114</a></div></div>
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<div class="ttc" id="astructRm_1_1F_html_a9707a14d822d3f60aa6a97cb16b2a989a50f9d0c739422ab276b705298248aa0d"><div class="ttname"><a href="structRm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a50f9d0c739422ab276b705298248aa0d">Rm::F::RWX</a></div><div class="ttdeci">@ RWX</div><div class="ttdoc">Readable, writable and executable region.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00143">rm:143</a></div></div>
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<div class="ttc" id="astructRm_1_1F_html_a9707a14d822d3f60aa6a97cb16b2a989a63d81cc85db6cf2402a402489c663506"><div class="ttname"><a href="structRm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a63d81cc85db6cf2402a402489c663506">Rm::F::X</a></div><div class="ttdeci">@ X</div><div class="ttdoc">Executable region.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00137">rm:137</a></div></div>
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<div class="ttc" id="astructRm_1_1F_html_a9707a14d822d3f60aa6a97cb16b2a989a6c0c069e0eca980069382cf52276815b"><div class="ttname"><a href="structRm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a6c0c069e0eca980069382cf52276815b">Rm::F::R</a></div><div class="ttdeci">@ R</div><div class="ttdoc">Readable region.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00133">rm:133</a></div></div>
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<div class="ttc" id="astructRm_1_1F_html_a9707a14d822d3f60aa6a97cb16b2a989a73be84e7035cfe1bbed5edbff7116641"><div class="ttname"><a href="structRm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a73be84e7035cfe1bbed5edbff7116641">Rm::F::Detach_free</a></div><div class="ttdeci">@ Detach_free</div><div class="ttdoc">Free the portion of the data space after detach.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00148">rm:148</a></div></div>
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<div class="ttc" id="astructRm_1_1F_html_a9707a14d822d3f60aa6a97cb16b2a989a7a5548a6185bfa97c1b41ef92ab40bc5"><div class="ttname"><a href="structRm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a7a5548a6185bfa97c1b41ef92ab40bc5">Rm::F::W</a></div><div class="ttdeci">@ W</div><div class="ttdoc">Writable region.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00135">rm:135</a></div></div>
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<div class="ttc" id="astructRm_1_1F_html_adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a"><div class="ttname"><a href="structRm_1_1F.html#adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a">Rm::F::Search_addr</a></div><div class="ttdeci">@ Search_addr</div><div class="ttdoc">Search for a suitable address range.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00114">rm:114</a></div></div>
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<div class="ttc" id="astructRm_1_1F_html_adec4d26077e34d9586891ac0489e0041af80cdbdea8dc3a8e155be2ad2c3e5579"><div class="ttname"><a href="structRm_1_1F.html#adec4d26077e34d9586891ac0489e0041af80cdbdea8dc3a8e155be2ad2c3e5579">Rm::F::In_area</a></div><div class="ttdeci">@ In_area</div><div class="ttdoc">Search only in area, or map into area.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00116">rm:116</a></div></div>
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<div class="ttc" id="asys_2assert_8h_html"><div class="ttname"><a href="sys_2assert_8h.html">assert.h</a></div><div class="ttdoc">Low-level assert implementation.</div></div>
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<div class="ttc" id="asys_2assert_8h_html_a01be6aeab808dab408e341a7a8bd17a6"><div class="ttname"><a href="sys_2assert_8h.html#a01be6aeab808dab408e341a7a8bd17a6">l4_assert</a></div><div class="ttdeci">#define l4_assert(expr)</div><div class="ttdoc">Low-level assert.</div><div class="ttdef"><b>Definition</b> <a href="sys_2assert_8h_source.html#l00032">assert.h:32</a></div></div>
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<li class="navelem"><b>l4</b></li><li class="navelem"><b>l4re_vfs</b></li><li class="navelem"><b>impl</b></li><li class="navelem"><b>vfs_impl.h</b></li>
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<li class="footer">Generated on <span class="timestamp"></span> for L4Re Operating System Framework by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.15.0 </li>
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