20 Sep
2002
20 Sep
'02
12:03 a.m.
On Thu, Sep 19, 2002 at 03:27:51PM +0900, Alexey Mandrookin wrote:
Hi!
How to write portable servers for L4 micro-kernel family?
I found what the l4_threadid_t type is different in various
L4 implementation. Does any wrapper on top of syscalls exist?
The difference is not really big in practice, because you tend to newer use the third dword-register in ipc anyway.
In C, the compiler fixes things, especially if you refrain from using raw thread-id constants, but base everything on template-ids, like
id = l4_myself(); id.id.lthread = XX
and so on. You still need to recompile though.
In asm, just assume that you always have 64-bit ids, by making sure not to scratch %edi.
Its simple when you get used to it.
Best, Jacob