mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2025-01-06 12:09:26 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
/* C API for x86 cpuid insn.
|
|
Copyright (C) 2007-2024 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
This file 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.
|
|
|
|
This program 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.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef NAT_X86_CPUID_H
|
|
#define NAT_X86_CPUID_H
|
|
|
|
/* Always include the header for the cpu bit defines. */
|
|
#include "x86-gcc-cpuid.h"
|
|
|
|
#ifndef __cplusplus
|
|
/* This header file is also used in C code for some test-cases, so define
|
|
nullptr in C terms to avoid a compilation error. */
|
|
#define nullptr ((void *) 0)
|
|
#endif
|
|
|
|
/* Return cpuid data for requested cpuid level, as found in returned
|
|
eax, ebx, ecx and edx registers. The function checks if cpuid is
|
|
supported and returns 1 for valid cpuid information or 0 for
|
|
unsupported cpuid level. Pointers may be non-null. */
|
|
|
|
static __inline int
|
|
x86_cpuid (unsigned int __level,
|
|
unsigned int *__eax, unsigned int *__ebx,
|
|
unsigned int *__ecx, unsigned int *__edx)
|
|
{
|
|
unsigned int __scratch;
|
|
|
|
if (!__eax)
|
|
__eax = &__scratch;
|
|
if (!__ebx)
|
|
__ebx = &__scratch;
|
|
if (!__ecx)
|
|
__ecx = &__scratch;
|
|
if (!__edx)
|
|
__edx = &__scratch;
|
|
|
|
return __get_cpuid (__level, __eax, __ebx, __ecx, __edx);
|
|
}
|
|
|
|
/* Return cpuid data for requested cpuid level and sub-level, as found
|
|
in returned eax, ebx, ecx and edx registers. The function checks
|
|
if cpuid is supported and returns 1 for valid cpuid information or
|
|
0 for unsupported cpuid level. Pointers may be non-null. */
|
|
|
|
static __inline int
|
|
x86_cpuid_count (unsigned int __level, unsigned int __sublevel,
|
|
unsigned int *__eax, unsigned int *__ebx,
|
|
unsigned int *__ecx, unsigned int *__edx)
|
|
{
|
|
unsigned int __scratch;
|
|
|
|
if (__eax == nullptr)
|
|
__eax = &__scratch;
|
|
if (__ebx == nullptr)
|
|
__ebx = &__scratch;
|
|
if (__ecx == nullptr)
|
|
__ecx = &__scratch;
|
|
if (__edx == nullptr)
|
|
__edx = &__scratch;
|
|
|
|
return __get_cpuid_count (__level, __sublevel, __eax, __ebx, __ecx, __edx);
|
|
}
|
|
|
|
#ifndef __cplusplus
|
|
/* Avoid leaking this local definition beyond the scope of this header
|
|
file. */
|
|
#undef nullptr
|
|
#endif
|
|
|
|
#endif /* NAT_X86_CPUID_H */
|