glibc/sysdeps/x86_64/dl-procruntime.c
H.J. Lu 874214db62 i386: Remove CET support bits
1. Remove _dl_runtime_resolve_shstk and _dl_runtime_profile_shstk.
2. Move CET offsets from x86 cpu-features-offsets.sym to x86-64
features-offsets.sym.
3. Rename x86 cet-control.h to x86-64 feature-control.h since it is only
for x86-64 and also used for PLT rewrite.
4. Add x86-64 ldsodefs.h to include feature-control.h.
5. Change TUNABLE_CALLBACK (set_plt_rewrite) to x86-64 only.
6. Move x86 dl-procruntime.c to x86-64.
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2024-01-10 05:20:20 -08:00

79 lines
2.3 KiB
C

/* Data for processor runtime information. x86-64 version.
Copyright (C) 2018-2024 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/>. */
/* This information must be kept in sync with the _DL_HWCAP_COUNT,
HWCAP_PLATFORMS_START and HWCAP_PLATFORMS_COUNT definitions in
dl-hwcap.h.
If anything should be added here check whether the size of each string
is still ok with the given array size.
All the #ifdefs in the definitions are quite irritating but
necessary if we want to avoid duplicating the information. There
are three different modes:
- PROCINFO_DECL is defined. This means we are only interested in
declarations.
- PROCINFO_DECL is not defined:
+ if SHARED is defined the file is included in an array
initializer. The .element = { ... } syntax is needed.
+ if SHARED is not defined a normal array initialization is
needed.
*/
#ifndef PROCINFO_CLASS
# define PROCINFO_CLASS
#endif
#if !IS_IN (ldconfig)
# if !defined PROCINFO_DECL && defined SHARED
._dl_x86_feature_1
# else
PROCINFO_CLASS unsigned int _dl_x86_feature_1
# endif
# ifndef PROCINFO_DECL
= 0
# endif
# if !defined SHARED || defined PROCINFO_DECL
;
# else
,
# endif
# if !defined PROCINFO_DECL && defined SHARED
._dl_x86_feature_control
# else
PROCINFO_CLASS struct dl_x86_feature_control _dl_x86_feature_control
# endif
# ifndef PROCINFO_DECL
= {
.ibt = DEFAULT_DL_X86_CET_CONTROL,
.shstk = DEFAULT_DL_X86_CET_CONTROL,
.plt_rewrite = plt_rewrite_none,
}
# endif
# if !defined SHARED || defined PROCINFO_DECL
;
# else
,
# endif
#endif