freebsd-dev/sys/i386/linux/linux_locore.s
Luoqi Chen 645682fd40 Add a per-signal flag to mark handlers registered with osigaction, so we
can provide the correct context to each signal handler.

Fix broken sigsuspend(): don't use p_oldsigmask as a flag, use SAS_OLDMASK
as we did before the linuxthreads support merge (submitted by bde).

Move ps_sigstk from to p_sigacts to the main proc structure since signal
stack should not be shared among threads.

Move SAS_OLDMASK and SAS_ALTSTACK flags from sigacts::ps_flags to proc::p_flag.
Move PS_NOCLDSTOP and PS_NOCLDWAIT flags from proc::p_flag to procsig::ps_flag.

Reviewed by:	marcel, jdp, bde
1999-10-11 20:33:17 +00:00

25 lines
610 B
ArmAsm

/* $FreeBSD$ */
#include "linux_assym.h" /* system definitions */
#include <machine/asmacros.h> /* miscellaneous asm macros */
#include <i386/linux/linux_syscall.h> /* system call numbers */
NON_GPROF_ENTRY(linux_sigcode)
call LINUX_SIGF_HANDLER(%esp)
leal LINUX_SIGF_SC(%esp),%ebx /* linux scp */
movl LINUX_SC_GS(%ebx),%gs
push %eax /* fake ret addr */
movl $LINUX_SYS_linux_sigreturn,%eax /* linux_sigreturn() */
int $0x80 /* enter kernel with args */
0: jmp 0b
ALIGN_TEXT
_linux_esigcode:
.data
.globl _linux_szsigcode
_linux_szsigcode:
.long _linux_esigcode-_linux_sigcode
.text