am 7d3a99b1: Merge "Clean up the x86-64 and x86 setjmp families."
* commit '7d3a99b1bb06c3a261252680b4c3295cbcd77894': Clean up the x86-64 and x86 setjmp families.
This commit is contained in:
Elliott Hughes
@@ -1,73 +0,0 @@
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/* $OpenBSD: _setjmp.S,v 1.5 2005/08/07 11:30:38 espie Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to Berkeley by
|
||||
* William Jolitz.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* 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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#include <private/bionic_asm.h>
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/*
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* C library -- _setjmp, _longjmp
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*
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* _longjmp(a,v)
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* will generate a "return(v)" from the last call to
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* _setjmp(a)
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* by restoring registers from the stack.
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* The previous signal state is NOT restored.
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*/
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ENTRY(_setjmp)
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movl 4(%esp),%eax
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movl 0(%esp),%edx
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movl %edx, 0(%eax) /* rta */
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movl %ebx, 4(%eax)
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movl %esp, 8(%eax)
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movl %ebp,12(%eax)
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movl %esi,16(%eax)
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movl %edi,20(%eax)
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xorl %eax,%eax
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ret
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END(_setjmp)
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ENTRY(_longjmp)
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movl 4(%esp),%edx
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movl 8(%esp),%eax
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movl 0(%edx),%ecx
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movl 4(%edx),%ebx
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movl 8(%edx),%esp
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movl 12(%edx),%ebp
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movl 16(%edx),%esi
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movl 20(%edx),%edi
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testl %eax,%eax
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jnz 1f
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incl %eax
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1: movl %ecx,0(%esp)
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ret
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END(_longjmp)
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@@ -1,4 +1,3 @@
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/* $OpenBSD: setjmp.S,v 1.8 2005/08/07 11:30:38 espie Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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@@ -33,55 +32,98 @@
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#include <private/bionic_asm.h>
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/*
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* C library -- setjmp, longjmp
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*
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* longjmp(a,v)
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* will generate a "return(v)" from the last call to
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* setjmp(a)
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* by restoring registers from the stack.
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* The previous signal state is restored.
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*/
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#define _JB_EDX 0
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#define _JB_EBX 1
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#define _JB_ESP 2
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#define _JB_EBP 3
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#define _JB_ESI 4
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#define _JB_EDI 5
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#define _JB_SIGMASK 6
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#define _JB_SIGFLAG 7
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ENTRY(setjmp)
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PIC_PROLOGUE
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pushl $0
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call PIC_PLT(sigblock)
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addl $4,%esp
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PIC_EPILOGUE
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movl 4(%esp),%ecx
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movl 0(%esp),%edx
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movl %edx, 0(%ecx)
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movl %ebx, 4(%ecx)
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movl %esp, 8(%ecx)
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movl %ebp,12(%ecx)
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movl %esi,16(%ecx)
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movl %edi,20(%ecx)
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movl %eax,24(%ecx)
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xorl %eax,%eax
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ret
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movl 4(%esp),%ecx
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movl $1,(_JB_SIGFLAG * 4)(%ecx)
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jmp .L_sigsetjmp_signal_mask
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END(setjmp)
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ENTRY(longjmp)
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movl 4(%esp),%edx
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PIC_PROLOGUE
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pushl 24(%edx)
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call PIC_PLT(sigsetmask)
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addl $4,%esp
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PIC_EPILOGUE
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ENTRY(_setjmp)
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movl 4(%esp),%ecx
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movl $0,(_JB_SIGFLAG * 4)(%ecx)
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jmp .L_sigsetjmp_no_signal_mask
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END(_setjmp)
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movl 4(%esp),%edx
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movl 8(%esp),%eax
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movl 0(%edx),%ecx
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movl 4(%edx),%ebx
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movl 8(%edx),%esp
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movl 12(%edx),%ebp
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movl 16(%edx),%esi
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movl 20(%edx),%edi
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testl %eax,%eax
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jnz 1f
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incl %eax
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1: movl %ecx,0(%esp)
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ret
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END(longjmp)
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ENTRY(sigsetjmp)
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movl 4(%esp),%ecx
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movl 8(%esp),%eax
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// Record whether or not the signal mask is valid.
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movl %eax,(_JB_SIGFLAG * 4)(%ecx)
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// Do we need to save the signal mask?
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testl %eax,%eax
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jz 1f
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.L_sigsetjmp_signal_mask:
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// Get the current signal mask.
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PIC_PROLOGUE
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pushl $0
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call PIC_PLT(sigblock)
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addl $4,%esp
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PIC_EPILOGUE
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// Save the signal mask.
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movl 4(%esp),%ecx
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movl %eax,(_JB_SIGMASK * 4)(%ecx)
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.L_sigsetjmp_no_signal_mask:
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1:
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// Save the callee-save registers.
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movl 0(%esp),%edx
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movl %edx,(_JB_EDX * 4)(%ecx)
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movl %ebx,(_JB_EBX * 4)(%ecx)
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movl %esp,(_JB_ESP * 4)(%ecx)
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movl %ebp,(_JB_EBP * 4)(%ecx)
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movl %esi,(_JB_ESI * 4)(%ecx)
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movl %edi,(_JB_EDI * 4)(%ecx)
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xorl %eax,%eax
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ret
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END(sigsetjmp)
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ENTRY(siglongjmp)
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// Do we have a signal mask to restore?
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movl 4(%esp),%edx
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cmpl $0,(_JB_SIGFLAG * 4)(%edx)
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jz 1f
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// Restore the signal mask.
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PIC_PROLOGUE
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pushl (_JB_SIGMASK * 4)(%edx)
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call PIC_PLT(sigsetmask)
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addl $4,%esp
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PIC_EPILOGUE
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1:
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// Restore the callee-save registers.
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movl 4(%esp),%edx
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movl 8(%esp),%eax
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movl (_JB_EDX * 4)(%edx),%ecx
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movl (_JB_EBX * 4)(%edx),%ebx
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movl (_JB_ESP * 4)(%edx),%esp
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movl (_JB_EBP * 4)(%edx),%ebp
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movl (_JB_ESI * 4)(%edx),%esi
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movl (_JB_EDI * 4)(%edx),%edi
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testl %eax,%eax
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jnz 2f
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incl %eax
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2:
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movl %ecx,0(%esp)
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ret
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END(siglongjmp)
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.globl longjmp
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.equ longjmp, siglongjmp
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.globl _longjmp
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.equ _longjmp, siglongjmp
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@@ -1,86 +0,0 @@
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/* $OpenBSD: sigsetjmp.S,v 1.7 2005/08/07 11:30:38 espie Exp $ */
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/*-
|
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* Copyright (c) 1990 The Regents of the University of California.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to Berkeley by
|
||||
* William Jolitz.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
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#include <private/bionic_asm.h>
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ENTRY(sigsetjmp)
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movl 4(%esp),%ecx
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movl 8(%esp),%eax
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movl %eax,28(%ecx)
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testl %eax,%eax
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jz 1f
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PIC_PROLOGUE
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pushl $0
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call PIC_PLT(sigblock)
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addl $4,%esp
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PIC_EPILOGUE
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movl 4(%esp),%ecx
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movl %eax,24(%ecx)
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1: movl 0(%esp),%edx
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movl %edx, 0(%ecx)
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movl %ebx, 4(%ecx)
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movl %esp, 8(%ecx)
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movl %ebp,12(%ecx)
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movl %esi,16(%ecx)
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movl %edi,20(%ecx)
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xorl %eax,%eax
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ret
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END(sigsetjmp)
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ENTRY(siglongjmp)
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movl 4(%esp),%edx
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cmpl $0,28(%edx)
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jz 1f
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PIC_PROLOGUE
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pushl 24(%edx)
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call PIC_PLT(sigsetmask)
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addl $4,%esp
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PIC_EPILOGUE
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|
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1: movl 4(%esp),%edx
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movl 8(%esp),%eax
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movl 0(%edx),%ecx
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movl 4(%edx),%ebx
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movl 8(%edx),%esp
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movl 12(%edx),%ebp
|
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movl 16(%edx),%esi
|
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movl 20(%edx),%edi
|
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testl %eax,%eax
|
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jnz 2f
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incl %eax
|
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2: movl %ecx,0(%esp)
|
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ret
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END(siglongjmp)
|
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@@ -40,10 +40,8 @@ libc_bionic_src_files_x86 += \
|
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arch-x86/bionic/_exit_with_stack_teardown.S \
|
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arch-x86/bionic/libgcc_compat.c \
|
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arch-x86/bionic/__restore.S \
|
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arch-x86/bionic/_setjmp.S \
|
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arch-x86/bionic/setjmp.S \
|
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arch-x86/bionic/__set_tls.c \
|
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arch-x86/bionic/sigsetjmp.S \
|
||||
arch-x86/bionic/syscall.S \
|
||||
arch-x86/bionic/vfork.S \
|
||||
|
||||
|
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@@ -1,83 +0,0 @@
|
||||
/* $OpenBSD: _setjmp.S,v 1.1 2004/01/28 01:44:45 mickey Exp $ */
|
||||
/* $NetBSD: _setjmp.S,v 1.1 2001/06/19 00:25:02 fvdl Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2001 Wasabi Systems, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Written by Frank van der Linden for Wasabi Systems, Inc.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed for the NetBSD Project by
|
||||
* Wasabi Systems, Inc.
|
||||
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
|
||||
* or promote products derived from this software without specific prior
|
||||
* written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/setjmp.h>
|
||||
|
||||
/*
|
||||
* C library -- _setjmp, _longjmp
|
||||
*
|
||||
* _longjmp(a,v)
|
||||
* will generate a "return(v)" from the last call to
|
||||
* _setjmp(a)
|
||||
* by restoring registers from the stack.
|
||||
* The previous signal state is NOT restored.
|
||||
*/
|
||||
|
||||
ENTRY(_setjmp)
|
||||
movq (%rsp),%r11
|
||||
movq %rbx,(_JB_RBX * 8)(%rdi)
|
||||
movq %rbp,(_JB_RBP * 8)(%rdi)
|
||||
movq %r12,(_JB_R12 * 8)(%rdi)
|
||||
movq %r13,(_JB_R13 * 8)(%rdi)
|
||||
movq %r14,(_JB_R14 * 8)(%rdi)
|
||||
movq %r15,(_JB_R15 * 8)(%rdi)
|
||||
movq %rsp,(_JB_RSP * 8)(%rdi)
|
||||
movq %r11,(_JB_PC * 8)(%rdi)
|
||||
|
||||
xorl %eax,%eax
|
||||
ret
|
||||
END(_setjmp)
|
||||
|
||||
ENTRY(_longjmp)
|
||||
movq (_JB_RBX * 8)(%rdi),%rbx
|
||||
movq (_JB_RBP * 8)(%rdi),%rbp
|
||||
movq (_JB_R12 * 8)(%rdi),%r12
|
||||
movq (_JB_R13 * 8)(%rdi),%r13
|
||||
movq (_JB_R14 * 8)(%rdi),%r14
|
||||
movq (_JB_R15 * 8)(%rdi),%r15
|
||||
movq (_JB_RSP * 8)(%rdi),%rsp
|
||||
movq (_JB_PC * 8)(%rdi),%r11
|
||||
|
||||
movl %esi,%eax
|
||||
testl %eax,%eax
|
||||
jnz 1f
|
||||
incl %eax
|
||||
1: movq %r11,0(%rsp)
|
||||
ret
|
||||
END(_longjmp)
|
||||
@@ -1,6 +1,3 @@
|
||||
/* $OpenBSD: setjmp.S,v 1.3 2012/08/22 17:19:34 pascal Exp $ */
|
||||
/* $NetBSD: __setjmp14.S,v 1.1 2001/06/19 00:25:02 fvdl Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2001 Wasabi Systems, Inc.
|
||||
* All rights reserved.
|
||||
@@ -37,60 +34,98 @@
|
||||
*/
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/setjmp.h>
|
||||
|
||||
/*
|
||||
* C library -- _setjmp, _longjmp
|
||||
*
|
||||
* longjmp(a,v)
|
||||
* will generate a "return(v)" from the last call to
|
||||
* setjmp(a)
|
||||
* by restoring registers from the stack.
|
||||
* The previous signal state is restored.
|
||||
*/
|
||||
// These are only the callee-saved registers. Code calling setjmp
|
||||
// will expect the rest to be clobbered anyway.
|
||||
|
||||
#define _JB_RBX 0
|
||||
#define _JB_RBP 1
|
||||
#define _JB_R12 2
|
||||
#define _JB_R13 3
|
||||
#define _JB_R14 4
|
||||
#define _JB_R15 5
|
||||
#define _JB_RSP 6
|
||||
#define _JB_PC 7
|
||||
#define _JB_SIGFLAG 8
|
||||
#define _JB_SIGMASK 9
|
||||
|
||||
ENTRY(setjmp)
|
||||
pushq %rdi
|
||||
xorq %rdi,%rdi
|
||||
call PIC_PLT(sigblock)
|
||||
popq %rdi
|
||||
movq %rax,(_JB_SIGMASK * 8)(%rdi)
|
||||
|
||||
movq (%rsp),%r11
|
||||
movq %rbx,(_JB_RBX * 8)(%rdi)
|
||||
movq %rbp,(_JB_RBP * 8)(%rdi)
|
||||
movq %r12,(_JB_R12 * 8)(%rdi)
|
||||
movq %r13,(_JB_R13 * 8)(%rdi)
|
||||
movq %r14,(_JB_R14 * 8)(%rdi)
|
||||
movq %r15,(_JB_R15 * 8)(%rdi)
|
||||
movq %rsp,(_JB_RSP * 8)(%rdi)
|
||||
movq %r11,(_JB_PC * 8)(%rdi)
|
||||
|
||||
2: xorl %eax,%eax
|
||||
ret
|
||||
movl $1,%esi
|
||||
jmp PIC_PLT(sigsetjmp)
|
||||
END(setjmp)
|
||||
|
||||
ENTRY(longjmp)
|
||||
movq %rdi,%r12
|
||||
movl %esi,%r8d
|
||||
ENTRY(_setjmp)
|
||||
movl $0,%esi
|
||||
jmp PIC_PLT(sigsetjmp)
|
||||
END(_setjmp)
|
||||
|
||||
movq (_JB_SIGMASK * 8)(%rdi),%rdi
|
||||
pushq %r8
|
||||
call PIC_PLT(sigsetmask)
|
||||
popq %r8
|
||||
movq (_JB_RBX * 8)(%r12),%rbx
|
||||
movq (_JB_RBP * 8)(%r12),%rbp
|
||||
movq (_JB_R13 * 8)(%r12),%r13
|
||||
movq (_JB_R14 * 8)(%r12),%r14
|
||||
movq (_JB_R15 * 8)(%r12),%r15
|
||||
movq (_JB_RSP * 8)(%r12),%rsp
|
||||
movq (_JB_PC * 8)(%r12),%r11
|
||||
movq (_JB_R12 * 8)(%r12),%r12
|
||||
// int sigsetjmp(sigjmp_buf env, int save_signal_mask);
|
||||
ENTRY(sigsetjmp)
|
||||
// Record whether or not we're saving the signal mask.
|
||||
movl %esi,(_JB_SIGFLAG * 8)(%rdi)
|
||||
|
||||
movl %r8d,%eax
|
||||
testl %eax,%eax
|
||||
jnz 1f
|
||||
incl %eax
|
||||
1: movq %r11,0(%rsp)
|
||||
ret
|
||||
END(longjmp)
|
||||
// Do we need to save the signal mask?
|
||||
testl %esi,%esi
|
||||
jz 2f
|
||||
|
||||
// Save the signal mask.
|
||||
pushq %rdi
|
||||
xorq %rdi,%rdi
|
||||
call PIC_PLT(sigblock)
|
||||
popq %rdi
|
||||
movq %rax,(_JB_SIGMASK * 8)(%rdi)
|
||||
|
||||
2:
|
||||
// Save the callee-save registers.
|
||||
movq (%rsp),%r11
|
||||
movq %rbx,(_JB_RBX * 8)(%rdi)
|
||||
movq %rbp,(_JB_RBP * 8)(%rdi)
|
||||
movq %r12,(_JB_R12 * 8)(%rdi)
|
||||
movq %r13,(_JB_R13 * 8)(%rdi)
|
||||
movq %r14,(_JB_R14 * 8)(%rdi)
|
||||
movq %r15,(_JB_R15 * 8)(%rdi)
|
||||
movq %rsp,(_JB_RSP * 8)(%rdi)
|
||||
movq %r11,(_JB_PC * 8)(%rdi)
|
||||
|
||||
xorl %eax,%eax
|
||||
ret
|
||||
END(sigsetjmp)
|
||||
|
||||
// void siglongjmp(sigjmp_buf env, int value);
|
||||
ENTRY(siglongjmp)
|
||||
movq %rdi,%r12
|
||||
pushq %rsi // Push 'value'.
|
||||
|
||||
// Do we need to restore the signal mask?
|
||||
cmpl $0, (_JB_SIGFLAG * 8)(%rdi)
|
||||
jz 2f
|
||||
|
||||
// Restore the signal mask.
|
||||
movq (_JB_SIGMASK * 8)(%rdi),%rdi
|
||||
call PIC_PLT(sigsetmask)
|
||||
|
||||
2:
|
||||
popq %rax // Pop 'value'.
|
||||
|
||||
// Restore the callee-save registers.
|
||||
movq (_JB_RBX * 8)(%r12),%rbx
|
||||
movq (_JB_RBP * 8)(%r12),%rbp
|
||||
movq (_JB_R13 * 8)(%r12),%r13
|
||||
movq (_JB_R14 * 8)(%r12),%r14
|
||||
movq (_JB_R15 * 8)(%r12),%r15
|
||||
movq (_JB_RSP * 8)(%r12),%rsp
|
||||
movq (_JB_PC * 8)(%r12),%r11
|
||||
movq (_JB_R12 * 8)(%r12),%r12
|
||||
|
||||
testl %eax,%eax
|
||||
jnz 1f
|
||||
incl %eax
|
||||
1:
|
||||
movq %r11,0(%rsp)
|
||||
ret
|
||||
END(siglongjmp)
|
||||
|
||||
.globl longjmp
|
||||
.equ longjmp, siglongjmp
|
||||
.globl _longjmp
|
||||
.equ _longjmp, siglongjmp
|
||||
|
||||
@@ -1,101 +0,0 @@
|
||||
/* $OpenBSD: sigsetjmp.S,v 1.3 2012/08/22 17:19:34 pascal Exp $ */
|
||||
/* $NetBSD: __setjmp14.S,v 1.1 2001/06/19 00:25:02 fvdl Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2001 Wasabi Systems, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Written by Frank van der Linden for Wasabi Systems, Inc.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed for the NetBSD Project by
|
||||
* Wasabi Systems, Inc.
|
||||
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
|
||||
* or promote products derived from this software without specific prior
|
||||
* written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
|
||||
#include <private/bionic_asm.h>
|
||||
#include <machine/setjmp.h>
|
||||
|
||||
/*
|
||||
* C library -- _setjmp, _longjmp
|
||||
*
|
||||
* longjmp(a,v)
|
||||
* will generate a "return(v)" from the last call to
|
||||
* setjmp(a)
|
||||
* by restoring registers from the stack.
|
||||
* The previous signal state is restored.
|
||||
*/
|
||||
|
||||
ENTRY(sigsetjmp)
|
||||
movl %esi,(_JB_SIGFLAG * 8)(%rdi)
|
||||
testl %esi,%esi
|
||||
jz 2f
|
||||
|
||||
pushq %rdi
|
||||
xorq %rdi,%rdi
|
||||
call PIC_PLT(sigblock)
|
||||
popq %rdi
|
||||
movq %rax,(_JB_SIGMASK * 8)(%rdi)
|
||||
|
||||
2: movq (%rsp),%r11
|
||||
movq %rbx,(_JB_RBX * 8)(%rdi)
|
||||
movq %rbp,(_JB_RBP * 8)(%rdi)
|
||||
movq %r12,(_JB_R12 * 8)(%rdi)
|
||||
movq %r13,(_JB_R13 * 8)(%rdi)
|
||||
movq %r14,(_JB_R14 * 8)(%rdi)
|
||||
movq %r15,(_JB_R15 * 8)(%rdi)
|
||||
movq %rsp,(_JB_RSP * 8)(%rdi)
|
||||
movq %r11,(_JB_PC * 8)(%rdi)
|
||||
|
||||
2: xorl %eax,%eax
|
||||
ret
|
||||
END(sigsetjmp)
|
||||
|
||||
ENTRY(siglongjmp)
|
||||
movq %rdi,%r12
|
||||
pushq %rsi
|
||||
cmpl $0, (_JB_SIGFLAG * 8)(%rdi)
|
||||
jz 2f
|
||||
|
||||
movq (_JB_SIGMASK * 8)(%rdi),%rdi
|
||||
call PIC_PLT(sigsetmask)
|
||||
2: popq %rax
|
||||
movq (_JB_RBX * 8)(%r12),%rbx
|
||||
movq (_JB_RBP * 8)(%r12),%rbp
|
||||
movq (_JB_R13 * 8)(%r12),%r13
|
||||
movq (_JB_R14 * 8)(%r12),%r14
|
||||
movq (_JB_R15 * 8)(%r12),%r15
|
||||
movq (_JB_RSP * 8)(%r12),%rsp
|
||||
movq (_JB_PC * 8)(%r12),%r11
|
||||
movq (_JB_R12 * 8)(%r12),%r12
|
||||
|
||||
testl %eax,%eax
|
||||
jnz 1f
|
||||
incl %eax
|
||||
1: movq %r11,0(%rsp)
|
||||
ret
|
||||
END(siglongjmp)
|
||||
@@ -1,21 +1,4 @@
|
||||
/* $OpenBSD: setjmp.h,v 1.1 2004/01/28 01:39:39 mickey Exp $ */
|
||||
/* $NetBSD: setjmp.h,v 1.1 2003/04/26 18:39:47 fvdl Exp $ */
|
||||
|
||||
/*
|
||||
* machine/setjmp.h: machine dependent setjmp-related information.
|
||||
* These are only the callee-saved registers, code calling setjmp
|
||||
* will expect the rest to be clobbered anyway.
|
||||
*/
|
||||
|
||||
#define _JB_RBX 0
|
||||
#define _JB_RBP 1
|
||||
#define _JB_R12 2
|
||||
#define _JB_R13 3
|
||||
#define _JB_R14 4
|
||||
#define _JB_R15 5
|
||||
#define _JB_RSP 6
|
||||
#define _JB_PC 7
|
||||
#define _JB_SIGFLAG 8
|
||||
#define _JB_SIGMASK 9
|
||||
|
||||
#define _JBLEN 11 /* size, in longs, of a jmp_buf */
|
||||
|
||||
@@ -33,10 +33,8 @@ libc_bionic_src_files_x86_64 += \
|
||||
arch-x86_64/bionic/__bionic_clone.S \
|
||||
arch-x86_64/bionic/_exit_with_stack_teardown.S \
|
||||
arch-x86_64/bionic/__restore_rt.S \
|
||||
arch-x86_64/bionic/_setjmp.S \
|
||||
arch-x86_64/bionic/setjmp.S \
|
||||
arch-x86_64/bionic/__set_tls.c \
|
||||
arch-x86_64/bionic/sigsetjmp.S \
|
||||
arch-x86_64/bionic/syscall.S \
|
||||
arch-x86_64/bionic/vfork.S \
|
||||
|
||||
|
||||
Reference in New Issue
Block a user