gcc/libgcc/config/i386/resms64x.h
Jakub Jelinek e586831971 re PR debug/83917 (with -mcall-ms2sysv-xlogues, stepping into x86 tail-call restore stub gives bad backtrace)
PR debug/83917
	* config/i386/i386-asm.h (PACKAGE_VERSION, PACKAGE_NAME,
	PACKAGE_STRING, PACKAGE_TARNAME, PACKAGE_URL): Undefine between
	inclusion of auto-target.h and auto-host.h.
	(USE_GAS_CFI_DIRECTIVES): Define if not defined already based on
	__GCC_HAVE_DWARF2_CFI_ASM.
	(cfi_startproc, cfi_endproc, cfi_adjust_cfa_offset,
	cfi_def_cfa_register, cfi_def_cfa, cfi_register, cfi_offset, cfi_push,
	cfi_pop): Define.
	* config/i386/cygwin.S: Don't include auto-host.h here, just
	define USE_GAS_CFI_DIRECTIVES to 1 or 0 and include i386-asm.h.
	(cfi_startproc, cfi_endproc, cfi_adjust_cfa_offset,
	cfi_def_cfa_register, cfi_register, cfi_push, cfi_pop): Remove.
	* config/i386/resms64fx.h: Add cfi_* directives.
	* config/i386/resms64x.h: Likewise.

From-SVN: r258010
2018-02-26 20:46:34 +01:00

66 lines
1.9 KiB
C

/* Epilogue stub for 64-bit ms/sysv clobbers: restore and return
Copyright (C) 2016-2018 Free Software Foundation, Inc.
Contributed by Daniel Santos <daniel.santos@pobox.com>
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include <cet.h>
#ifdef __x86_64__
#include "i386-asm.h"
/* Epilogue routine for restoring 64-bit ms/sysv registers and returning from
* function. */
.text
cfi_startproc()
cfi_def_cfa(%r10, 8)
MS2SYSV_STUB_BEGIN(resms64x_18)
mov -0x70(%rsi),%r15
MS2SYSV_STUB_BEGIN(resms64x_17)
mov -0x68(%rsi),%r14
MS2SYSV_STUB_BEGIN(resms64x_16)
mov -0x60(%rsi),%r13
MS2SYSV_STUB_BEGIN(resms64x_15)
mov -0x58(%rsi),%r12
MS2SYSV_STUB_BEGIN(resms64x_14)
mov -0x50(%rsi),%rbp
MS2SYSV_STUB_BEGIN(resms64x_13)
mov -0x48(%rsi),%rbx
MS2SYSV_STUB_BEGIN(resms64x_12)
mov -0x40(%rsi),%rdi
SSE_RESTORE
mov -0x38(%rsi),%rsi
mov %r10,%rsp
cfi_def_cfa_register(%rsp)
ret
cfi_endproc()
MS2SYSV_STUB_END(resms64x_12)
MS2SYSV_STUB_END(resms64x_13)
MS2SYSV_STUB_END(resms64x_14)
MS2SYSV_STUB_END(resms64x_15)
MS2SYSV_STUB_END(resms64x_16)
MS2SYSV_STUB_END(resms64x_17)
MS2SYSV_STUB_END(resms64x_18)
#endif /* __x86_64__ */