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Add linux real-time signal trampoline.

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erh 1998-10-01 04:37:15 +00:00
parent 8ada127535
commit 502a65c40d
1 changed files with 21 additions and 1 deletions
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22
sys/arch/i386/i386/locore.s
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@ -1,4 +1,4 @@
/* $NetBSD: locore.s,v 1.201 1998/09/12 00:47:12 mycroft Exp $ */
/* $NetBSD: locore.s,v 1.202 1998/10/01 04:37:15 erh Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -807,6 +807,26 @@ NENTRY(linux_sigcode)
int $0x80 # exit if sigreturn fails
.globl _linux_esigcode
_linux_esigcode:
NENTRY(linux_rt_sigcode)
call LINUX_SIGF_HANDLER(%esp)
leal LINUX_SIGF_SC(%esp),%ebx # scp (the call may have clobbered the
# copy at SIGF_SCP(%esp))
#ifdef VM86
testl $PSL_VM,LINUX_SC_EFLAGS(%ebx)
jnz 1f
#endif
movl LINUX_SC_FS(%ebx),%ecx
movl LINUX_SC_GS(%ebx),%edx
movl %cx,%fs
movl %dx,%gs
1: pushl %eax # junk to fake return address
movl $LINUX_SYS_rt_sigreturn,%eax
int $0x80 # enter kernel with args on stack
movl $LINUX_SYS_exit,%eax
int $0x80 # exit if sigreturn fails
.globl _linux_rt_esigcode
_linux_rt_esigcode:
#endif
/*****************************************************************************/