corda/sdk/tsetjmp/_setjmp.S
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ArmAsm

/* $NetBSD: _setjmp.S,v 1.9 2014/05/23 02:34:19 uebayasi Exp $ */
/*-
* 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.
*
* from: @(#)_setjmp.s 5.1 (Berkeley) 4/23/90
*/
#include "linux-regs.h"
#if defined(LIBC_SCCS)
RCSID("$NetBSD: _setjmp.S,v 1.9 2014/05/23 02:34:19 uebayasi Exp $")
#endif
/*
* 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.
*/
#ifdef LINUX32
#define _JB_EDX 0
#define _JB_EBX 1
#define _JB_ESP 2
#define _JB_EBP 3
#define _JB_ESI 4
#define _JB_EDI 5
#define MOV movl
#endif
#ifdef LINUX64
#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 MOV movq
#endif
DECLARE_GLOBAL_FUNC _setjmp
#ifdef LINUX32
movl 4(%esp),%eax
movl 0(%esp),%edx
movl %edx, (_JB_EDX * 4)(%eax) /* rta */
movl %ebx, (_JB_EBX * 4)(%eax)
movl %esp, (_JB_ESP * 4)(%eax)
movl %ebp, (_JB_EBP * 4)(%eax)
movl %esi, (_JB_ESI * 4)(%eax)
movl %edi, (_JB_EDI * 4)(%eax)
#endif
#ifdef LINUX64
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)
#endif
xorl %eax,%eax
ret
DECLARE_GLOBAL_FUNC _longjmp
#ifdef LINUX32
movl 4(%esp),%edx
movl 8(%esp),%eax
movl (_JB_EDX * 4)(%edx),%ecx
movl (_JB_EBX * 4)(%edx),%ebx
movl (_JB_ESP * 4)(%edx),%esp
movl (_JB_EBP * 4)(%edx),%ebp
movl (_JB_ESI * 4)(%edx),%esi
movl (_JB_EDI * 4)(%edx),%edi
#endif
#ifdef LINUX64
movl %esi,%eax
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),%rcx
#endif
testl %eax,%eax
jnz 1f
incl %eax
1: MOV %xcx,0(%xsp)
ret
DECLARE_GLOBAL_FUNC set_sgx_tlongjmp_version
lea_pic sgx_tsetjmp_version, %xax
ret