c639ca93f4
from the ia32 specific stuff. Some of this still needs to move to the MI freebsd32 area, and some needs to move to the MD area. This is still work-in-progress.
89 lines
2.7 KiB
ArmAsm
89 lines
2.7 KiB
ArmAsm
/*-
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* Copyright (c) 2003 Peter Wemm
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include "opt_compat.h"
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#include <machine/asmacros.h>
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#include <sys/syscall.h>
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#include "ia32_assym.h"
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.text
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.code32
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/*
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* Signal trampoline, copied to top of user stack
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* XXX may need to be MD to match backend sendsig handoff protocol
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*/
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ALIGN_TEXT
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.globl ia32_sigcode
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ia32_sigcode:
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calll *IA32_SIGF_HANDLER(%esp)
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leal IA32_SIGF_UC(%esp),%eax /* get ucontext */
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pushl %eax
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movl IA32_UC_GS(%eax),%gs /* restore %gs */
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movl IA32_UC_FS(%eax),%fs /* restore %fs */
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movl IA32_UC_ES(%eax),%es /* restore %es */
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movl IA32_UC_DS(%eax),%ds /* restore %ds */
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movl $SYS_sigreturn,%eax
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pushl %eax /* junk to fake return addr. */
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int $0x80 /* enter kernel with args */
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/* on stack */
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1:
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jmp 1b
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#ifdef COMPAT_FREEBSD4
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ALIGN_TEXT
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freebsd4_ia32_sigcode:
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calll *IA32_SIGF_HANDLER(%esp)
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leal IA32_SIGF_UC4(%esp),%eax/* get ucontext */
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pushl %eax
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movl IA32_UC4_GS(%eax),%gs /* restore %gs */
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movl IA32_UC4_FS(%eax),%fs /* restore %fs */
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movl IA32_UC4_ES(%eax),%es /* restore %es */
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movl IA32_UC4_DS(%eax),%ds /* restore %ds */
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movl $344,%eax /* 4.x SYS_sigreturn */
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pushl %eax /* junk to fake return addr. */
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int $0x80 /* enter kernel with args */
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/* on stack */
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1:
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jmp 1b
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#endif
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ALIGN_TEXT
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esigcode:
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.data
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.globl sz_ia32_sigcode
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sz_ia32_sigcode:
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.long esigcode-ia32_sigcode
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#ifdef COMPAT_FREEBSD4
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.globl sz_freebsd4_ia32_sigcode
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sz_freebsd4_ia32_sigcode:
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.long esigcode-freebsd4_ia32_sigcode
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#endif
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