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nat/x86-cpuid.h: Add x86_cpuid_count wrapper around __get_cpuid_count.

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Approved-By: Simon Marchi <simon.marchi@efficios.com>
This commit is contained in:
John Baldwin 2023-08-28 14:18:19 -07:00
parent c689d1fe58
commit e85aad4ae7
1 changed files with 32 additions and 0 deletions
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32
gdb/nat/x86-cpuid.h
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@ -48,6 +48,30 @@ x86_cpuid (unsigned int __level,
return __get_cpuid (__level, __eax, __ebx, __ecx, __edx); 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);
}
#else #else
static __inline int static __inline int
@ -58,6 +82,14 @@ x86_cpuid (unsigned int __level,
return 0; return 0;
} }
static __inline int
x86_cpuid_count (unsigned int __level, unsigned int __sublevel,
unsigned int *__eax, unsigned int *__ebx,
unsigned int *__ecx, unsigned int *__edx)
{
return 0;
}
#endif /* i386 && x86_64 */ #endif /* i386 && x86_64 */
#endif /* NAT_X86_CPUID_H */ #endif /* NAT_X86_CPUID_H */