197 lines
9.5 KiB
C
197 lines
9.5 KiB
C
/*
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* setjmpex/longjmp functions for Wine exception handling
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*
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* Copyright (c) 1999, 2010 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include "winternl.h"
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#include "wine/exception.h"
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#include "wine/asm.h"
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#if defined(__GNUC__) || defined(__clang__)
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#if defined(__i386__)
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__ASM_GLOBAL_FUNC( __wine_setjmpex,
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"movl 4(%esp),%ecx\n\t" /* jmp_buf */
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"movl %ebp,0(%ecx)\n\t" /* jmp_buf.Ebp */
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"movl %ebx,4(%ecx)\n\t" /* jmp_buf.Ebx */
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"movl %edi,8(%ecx)\n\t" /* jmp_buf.Edi */
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"movl %esi,12(%ecx)\n\t" /* jmp_buf.Esi */
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"movl %esp,16(%ecx)\n\t" /* jmp_buf.Esp */
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"movl 0(%esp),%eax\n\t"
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"movl %eax,20(%ecx)\n\t" /* jmp_buf.Eip */
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"xorl %eax,%eax\n\t"
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"ret" )
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__ASM_GLOBAL_FUNC( __wine_longjmp,
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"movl 4(%esp),%ecx\n\t" /* jmp_buf */
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"movl 8(%esp),%eax\n\t" /* retval */
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"movl 0(%ecx),%ebp\n\t" /* jmp_buf.Ebp */
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"movl 4(%ecx),%ebx\n\t" /* jmp_buf.Ebx */
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"movl 8(%ecx),%edi\n\t" /* jmp_buf.Edi */
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"movl 12(%ecx),%esi\n\t" /* jmp_buf.Esi */
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"movl 16(%ecx),%esp\n\t" /* jmp_buf.Esp */
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"addl $4,%esp\n\t" /* get rid of return address */
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"jmp *20(%ecx)\n\t" /* jmp_buf.Eip */ )
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#elif defined(__x86_64__)
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__ASM_GLOBAL_FUNC( __wine_setjmpex,
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"movq %rdx,(%rcx)\n\t" /* jmp_buf->Frame */
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"movq %rbx,0x8(%rcx)\n\t" /* jmp_buf->Rbx */
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"leaq 0x8(%rsp),%rax\n\t"
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"movq %rax,0x10(%rcx)\n\t" /* jmp_buf->Rsp */
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"movq %rbp,0x18(%rcx)\n\t" /* jmp_buf->Rbp */
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"movq %rsi,0x20(%rcx)\n\t" /* jmp_buf->Rsi */
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"movq %rdi,0x28(%rcx)\n\t" /* jmp_buf->Rdi */
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"movq %r12,0x30(%rcx)\n\t" /* jmp_buf->R12 */
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"movq %r13,0x38(%rcx)\n\t" /* jmp_buf->R13 */
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"movq %r14,0x40(%rcx)\n\t" /* jmp_buf->R14 */
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"movq %r15,0x48(%rcx)\n\t" /* jmp_buf->R15 */
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"movq (%rsp),%rax\n\t"
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"movq %rax,0x50(%rcx)\n\t" /* jmp_buf->Rip */
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"stmxcsr 0x58(%rcx)\n\t" /* jmp_buf->MxCsr */
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"fnstcw 0x5c(%rcx)\n\t" /* jmp_buf->FpCsr */
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"movdqa %xmm6,0x60(%rcx)\n\t" /* jmp_buf->Xmm6 */
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"movdqa %xmm7,0x70(%rcx)\n\t" /* jmp_buf->Xmm7 */
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"movdqa %xmm8,0x80(%rcx)\n\t" /* jmp_buf->Xmm8 */
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"movdqa %xmm9,0x90(%rcx)\n\t" /* jmp_buf->Xmm9 */
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"movdqa %xmm10,0xa0(%rcx)\n\t" /* jmp_buf->Xmm10 */
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"movdqa %xmm11,0xb0(%rcx)\n\t" /* jmp_buf->Xmm11 */
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"movdqa %xmm12,0xc0(%rcx)\n\t" /* jmp_buf->Xmm12 */
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"movdqa %xmm13,0xd0(%rcx)\n\t" /* jmp_buf->Xmm13 */
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"movdqa %xmm14,0xe0(%rcx)\n\t" /* jmp_buf->Xmm14 */
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"movdqa %xmm15,0xf0(%rcx)\n\t" /* jmp_buf->Xmm15 */
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"xorq %rax,%rax\n\t"
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"retq" )
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__ASM_GLOBAL_FUNC( __wine_longjmp,
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"movq %rdx,%rax\n\t" /* retval */
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"movq 0x8(%rcx),%rbx\n\t" /* jmp_buf->Rbx */
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"movq 0x18(%rcx),%rbp\n\t" /* jmp_buf->Rbp */
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"movq 0x20(%rcx),%rsi\n\t" /* jmp_buf->Rsi */
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"movq 0x28(%rcx),%rdi\n\t" /* jmp_buf->Rdi */
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"movq 0x30(%rcx),%r12\n\t" /* jmp_buf->R12 */
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"movq 0x38(%rcx),%r13\n\t" /* jmp_buf->R13 */
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"movq 0x40(%rcx),%r14\n\t" /* jmp_buf->R14 */
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"movq 0x48(%rcx),%r15\n\t" /* jmp_buf->R15 */
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"ldmxcsr 0x58(%rcx)\n\t" /* jmp_buf->MxCsr */
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"fnclex\n\t"
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"fldcw 0x5c(%rcx)\n\t" /* jmp_buf->FpCsr */
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"movdqa 0x60(%rcx),%xmm6\n\t" /* jmp_buf->Xmm6 */
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"movdqa 0x70(%rcx),%xmm7\n\t" /* jmp_buf->Xmm7 */
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"movdqa 0x80(%rcx),%xmm8\n\t" /* jmp_buf->Xmm8 */
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"movdqa 0x90(%rcx),%xmm9\n\t" /* jmp_buf->Xmm9 */
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"movdqa 0xa0(%rcx),%xmm10\n\t" /* jmp_buf->Xmm10 */
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"movdqa 0xb0(%rcx),%xmm11\n\t" /* jmp_buf->Xmm11 */
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"movdqa 0xc0(%rcx),%xmm12\n\t" /* jmp_buf->Xmm12 */
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"movdqa 0xd0(%rcx),%xmm13\n\t" /* jmp_buf->Xmm13 */
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"movdqa 0xe0(%rcx),%xmm14\n\t" /* jmp_buf->Xmm14 */
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"movdqa 0xf0(%rcx),%xmm15\n\t" /* jmp_buf->Xmm15 */
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"movq 0x50(%rcx),%rdx\n\t" /* jmp_buf->Rip */
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"movq 0x10(%rcx),%rsp\n\t" /* jmp_buf->Rsp */
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"jmp *%rdx" )
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#elif defined(__arm__)
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__ASM_GLOBAL_FUNC( __wine_setjmpex,
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"stm r0, {r1,r4-r11}\n" /* jmp_buf->Frame,R4..R11 */
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"str sp, [r0, #0x24]\n\t" /* jmp_buf->Sp */
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"str lr, [r0, #0x28]\n\t" /* jmp_buf->Pc */
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#ifndef __SOFTFP__
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"vmrs r2, fpscr\n\t"
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"str r2, [r0, #0x2c]\n\t" /* jmp_buf->Fpscr */
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"add r0, r0, #0x30\n\t"
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"vstm r0, {d8-d15}\n\t" /* jmp_buf->D[0..7] */
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#endif
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"mov r0, #0\n\t"
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"bx lr" )
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__ASM_GLOBAL_FUNC( __wine_longjmp,
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"ldm r0, {r3-r11}\n\t" /* jmp_buf->Frame,R4..R11 */
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"ldr sp, [r0, #0x24]\n\t" /* jmp_buf->Sp */
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"ldr r2, [r0, #0x28]\n\t" /* jmp_buf->Pc */
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#ifndef __SOFTFP__
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"ldr r3, [r0, #0x2c]\n\t" /* jmp_buf->Fpscr */
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"vmsr fpscr, r3\n\t"
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"add r0, r0, #0x30\n\t"
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"vldm r0, {d8-d15}\n\t" /* jmp_buf->D[0..7] */
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#endif
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"mov r0, r1\n\t" /* retval */
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"bx r2" )
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#elif defined(__aarch64__)
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__ASM_GLOBAL_FUNC( __wine_setjmpex,
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"str x1, [x0]\n\t" /* jmp_buf->Frame */
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"stp x19, x20, [x0, #0x10]\n\t" /* jmp_buf->X19, X20 */
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"stp x21, x22, [x0, #0x20]\n\t" /* jmp_buf->X21, X22 */
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"stp x23, x24, [x0, #0x30]\n\t" /* jmp_buf->X23, X24 */
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"stp x25, x26, [x0, #0x40]\n\t" /* jmp_buf->X25, X26 */
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"stp x27, x28, [x0, #0x50]\n\t" /* jmp_buf->X27, X28 */
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"stp x29, x30, [x0, #0x60]\n\t" /* jmp_buf->Fp, Lr */
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"mov x2, sp\n\t"
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"str x2, [x0, #0x70]\n\t" /* jmp_buf->Sp */
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"mrs x2, fpcr\n\t"
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"str w2, [x0, #0x78]\n\t" /* jmp_buf->Fpcr */
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"mrs x2, fpsr\n\t"
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"str w2, [x0, #0x7c]\n\t" /* jmp_buf->Fpsr */
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"stp d8, d9, [x0, #0x80]\n\t" /* jmp_buf->D[0-1] */
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"stp d10, d11, [x0, #0x90]\n\t" /* jmp_buf->D[2-3] */
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"stp d12, d13, [x0, #0xa0]\n\t" /* jmp_buf->D[4-5] */
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"stp d14, d15, [x0, #0xb0]\n\t" /* jmp_buf->D[6-7] */
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"mov x0, #0\n\t"
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"ret" )
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__ASM_GLOBAL_FUNC( __wine_longjmp,
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"ldp x19, x20, [x0, #0x10]\n\t" /* jmp_buf->X19, X20 */
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"ldp x21, x22, [x0, #0x20]\n\t" /* jmp_buf->X21, X22 */
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"ldp x23, x24, [x0, #0x30]\n\t" /* jmp_buf->X23, X24 */
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"ldp x25, x26, [x0, #0x40]\n\t" /* jmp_buf->X25, X26 */
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"ldp x27, x28, [x0, #0x50]\n\t" /* jmp_buf->X27, X28 */
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"ldp x29, x30, [x0, #0x60]\n\t" /* jmp_buf->Fp, Lr */
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"ldr x2, [x0, #0x70]\n\t" /* jmp_buf->Sp */
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"mov sp, x2\n\t"
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"ldr w2, [x0, #0x78]\n\t" /* jmp_buf->Fpcr */
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"msr fpcr, x2\n\t"
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"ldr w2, [x0, #0x7c]\n\t" /* jmp_buf->Fpsr */
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"msr fpsr, x2\n\t"
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"ldp d8, d9, [x0, #0x80]\n\t" /* jmp_buf->D[0-1] */
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"ldp d10, d11, [x0, #0x90]\n\t" /* jmp_buf->D[2-3] */
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"ldp d12, d13, [x0, #0xa0]\n\t" /* jmp_buf->D[4-5] */
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"ldp d14, d15, [x0, #0xb0]\n\t" /* jmp_buf->D[6-7] */
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"mov x0, x1\n\t" /* retval */
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"ret" )
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#else
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int __cdecl __wine_setjmpex( __wine_jmp_buf *buf, EXCEPTION_REGISTRATION_RECORD *frame )
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{
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return setjmp( buf );
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}
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void __cdecl __wine_longjmp( __wine_jmp_buf *buf, int retval )
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{
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for (;;) longjmp( buf, retval );
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}
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#endif
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#endif /* __GNUC__ || __clang__ */
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