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Move RETURN_TO to x86/sysdep.h and implement x86_64 version.

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Message-Id: <Y99nfeBrTubZL9oi@jupiter.tail36e24.ts.net>
This commit is contained in:
Flavio Cruz 2023-02-05 03:23:25 -05:00 committed by Samuel Thibault
parent 359a0b9dbc
commit a1dcc64c9b
2 changed files with 17 additions and 34 deletions
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34
sysdeps/mach/i386/sysdep.h
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@ -1,34 +0,0 @@
/* Copyright (C) 1991-2023 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _MACH_I386_SYSDEP_H
#define _MACH_I386_SYSDEP_H 1
#include <sysdeps/mach/x86/sysdep.h>
#define RETURN_TO(sp, pc, retval) \
asm volatile ("movl %0, %%esp; jmp %*%1 # %2" \
: : "g" (sp), "r" (pc), "a" (retval))
/* This should be rearranged, but at the moment this file provides
the most useful definitions for assembler syntax details. */
#undef ENTRY
#undef ALIGN
#include <sysdeps/unix/i386/sysdep.h>
#endif /* mach/i386/sysdep.h */

17
sysdeps/mach/x86/sysdep.h
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@ -44,4 +44,21 @@
/* Get the machine-independent Mach definitions. */
#include <sysdeps/mach/sysdep.h>
#undef ENTRY
#undef ALIGN
#ifdef __x86_64__
#define RETURN_TO(sp, pc, retval) \
asm volatile ("movq %0, %%rsp; jmp %*%1 # %2" \
: : "g" (sp), "r" (pc), "a" (retval))
/* This should be rearranged, but at the moment this file provides
the most useful definitions for assembler syntax details. */
#include <sysdeps/unix/x86_64/sysdep.h>
#else
#define RETURN_TO(sp, pc, retval) \
asm volatile ("movl %0, %%esp; jmp %*%1 # %2" \
: : "g" (sp), "r" (pc), "a" (retval))
#include <sysdeps/unix/i386/sysdep.h>
#endif
#endif /* mach/x86/sysdep.h */