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Detect AltiVec via elf_aux_info() on FreeBSD 12+

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Jan Beich 2019-04-01 12:31:11 +00:00
parent 82486255da
commit 85f46e17a9
1 changed files with 12 additions and 2 deletions
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14
src/strategyselector.c
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@ -374,13 +374,23 @@ static INLINE int get_cpuid(unsigned level, unsigned sublevel, cpuid_t *cpu_info
#endif // COMPILE_INTEL
#if COMPILE_POWERPC
# if defined(__linux__)
# if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD__ >= 12)
#ifdef __linux__
#include <asm/cputable.h>
#else
#include <machine/cpu.h>
#endif
#include <sys/auxv.h>
static int altivec_available(void)
{
return !!(getauxval(AT_HWCAP) & PPC_FEATURE_HAS_ALTIVEC);
unsigned long hwcap = 0;
#ifdef __linux__
hwcap = getauxval(AT_HWCAP);
#else
elf_aux_info(AT_HWCAP, &hwcap, sizeof(hwcap));
#endif
return !!(hwcap & PPC_FEATURE_HAS_ALTIVEC);
}
# elif defined(__FreeBSD__)
#include <sys/types.h>