L4Re – L4 Runtime Environment
segment.h File Reference

l4f specific fs/gs manipulation More...

#include <l4/sys/compiler.h>
+ Include dependency graph for segment.h:

Go to the source code of this file.

Functions

long fiasco_amd64_set_fs (l4_cap_idx_t thread, l4_umword_t base, l4_utcb_t *utcb)
 Set the base address for the FS segment. More...
 
long fiasco_amd64_set_segment_base (l4_cap_idx_t thread, enum L4_sys_segment segr, l4_umword_t base, l4_utcb_t *utcb)
 Set the base address for a segment. More...
 
long fiasco_gdt_set (l4_cap_idx_t thread, void *desc, unsigned int size, unsigned int entry_number_start, l4_utcb_t *utcb)
 Set GDT segment descriptors. More...
 

Detailed Description

l4f specific fs/gs manipulation

Definition in file segment.h.

Function Documentation

◆ fiasco_amd64_set_fs()

long fiasco_amd64_set_fs ( l4_cap_idx_t  thread,
l4_umword_t  base,
l4_utcb_t utcb 
)
inline

Set the base address for the FS segment.

Parameters
threadThread for which the FS base address shall be modified.
baseBase address.
utcbUTCB of the caller.
Return values
L4_EOKSuccess.
-L4_EINVALInvalid base address (base).
-L4_ENOSYSOperation not supported with current kernel configuration.
Note
Calling this function is equivalent to calling fiasco_amd64_set_segment_base(thread, L4_AMD64_SEGMENT_FS, base, utcb).

Definition at line 35 of file segment.h.

◆ fiasco_amd64_set_segment_base()

long fiasco_amd64_set_segment_base ( l4_cap_idx_t  thread,
enum L4_sys_segment  segr,
l4_umword_t  base,
l4_utcb_t utcb 
)
inline

Set the base address for a segment.

Parameters
threadThread for which the base address of the selected segment shall be modified.
segrSegment to modify (one of L4_sys_segment).
baseBase address.
utcbUTCB of the caller.
Return values
L4_EOKSuccess.
-L4_EINVALInvalid segment (segr) or base address (base).
-L4_ENOSYSOperation not supported with current kernel configuration.

Definition at line 43 of file segment.h.