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SET_RELHOOK: merge i386 and x86_64, and move to sysdeps/mach/hurd/x86

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It is not Hurd-specific, but H.J. Lu wants it there.

Also, dc.a can be used to avoid hardcoding .long vs .quad and thus use
the same implementation for i386 and x86_64.
This commit is contained in:
Samuel Thibault 2022-02-01 18:32:19 +00:00
parent ce9a68c57c
commit 355bc7f736
3 changed files with 3 additions and 31 deletions
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2
sysdeps/generic/set-hooks-arch.h
View File

@ -21,7 +21,7 @@
#define _SET_HOOKS_ARCH_H
/* Define SET_RELHOOK to a variant of text_set_element that records a relative
offset rather than an absolute address. See sysdeps/i386/set-hooks-arch.h
offset rather than an absolute address. See sysdeps/mach/hurd/x86/set-hooks-arch.h
for an example.
#define SET_RELHOOK(NAME, HOOK) ...

4
sysdeps/i386/set-hooks-arch.h → sysdeps/mach/hurd/x86/set-hooks-arch.h
View File

@ -1,5 +1,5 @@
/* Machine-dependent macros for using symbol sets for running lists of
functions. i386 version.
functions. x86 version.
Copyright (C) 2021-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
@ -22,7 +22,7 @@
#define SET_RELHOOK(NAME, HOOK) \
asm(".section " #NAME",\"aR\"\n" \
".long "#HOOK" - .\n" \
".dc.a "#HOOK" - .\n" \
".section .text");
#endif /* set_hooks_arch.h */

28
sysdeps/x86_64/set-hooks-arch.h
View File

@ -1,28 +0,0 @@
/* Machine-dependent macros for using symbol sets for running lists of
functions. x86-64 version.
Copyright (C) 2021-2022 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 _SET_HOOKS_ARCH_H
#define _SET_HOOKS_ARCH_H
#define SET_RELHOOK(NAME, HOOK) \
asm(".section " #NAME",\"aR\"\n" \
".quad "#HOOK" - .\n" \
".section .text");
#endif /* set_hooks_arch.h */