freebsd-dev/sys/i386/svr4/svr4_locore.s

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#include "svr4_assym.h" /* system definitions */
#include <machine/asmacros.h> /* miscellaneous asm macros */
#include <compat/svr4/svr4_syscall.h> /* system call numbers */
1999-08-28 01:08:13 +00:00
/* $FreeBSD$ */
NON_GPROF_ENTRY(svr4_sigcode)
call *SVR4_SIGF_HANDLER(%esp)
leal SVR4_SIGF_UC(%esp),%eax # ucp (the call may have clobbered the
# copy at SIGF_UCP(%esp))
#ifdef VM86
#warning "VM86 doesn't work yet - do you really want this?"
testl $PSL_VM,SVR4_UC_EFLAGS(%eax)
jnz 1f
#endif
movl SVR4_UC_GS(%eax),%gs
1: pushl %eax # pointer to ucontext
pushl $1 # set context
movl $svr4_sys_context,%eax
int $0x80 # enter kernel with args on stack
0: jmp 0b
ALIGN_TEXT
svr4_esigcode:
.data
.globl svr4_szsigcode
svr4_szsigcode:
.long svr4_esigcode - svr4_sigcode
.text