Fix build on FreeBSD/powerpc64(le) (#7732)

Summary:
To build on FreeBSD, arch_ppc_probe needs to be adapted to FreeBSD.

Since FreeBSD uses elf_aux_info as an getauxval equivalent, use it and include necessary headers:
- machine/cpu.h for PPC_FEATURE2_HAS_VEC_CRYPTO,
- sys/auxv.h for elf_aux_info,
- sys/elf_common.h for AT_HWCAP2.

elf_aux_info isn't checked for being available, because it's available since FreeBSD 12.0. rocksdb assumes using Clang on FreeBSD, but powerpc* platforms switch to Clang only since 13.0.

This patch makes rocksdb build on FreeBSD on powerpc64 and powerpc64le platforms.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7732

Reviewed By: ltamasi

Differential Revision: D25399194

Pulled By: pdillinger

fbshipit-source-id: 9c905147d75f98cd2557dd2f86a940b8e6c5afcd
main
pkubaj 4 years ago committed by Facebook GitHub Bot
parent 93c6c18cf9
commit 66e54c5984
  1. 16
      util/crc32c.cc

@ -37,6 +37,10 @@
#define AT_HWCAP2 26
#endif
#elif __FreeBSD__
#include <machine/cpu.h>
#include <sys/auxv.h>
#include <sys/elf_common.h>
#endif /* __linux__ */
#endif
@ -467,6 +471,18 @@ static int arch_ppc_probe(void) {
return arch_ppc_crc32;
}
#elif __FreeBSD__
static int arch_ppc_probe(void) {
unsigned long cpufeatures;
arch_ppc_crc32 = 0;
#if defined(__powerpc64__)
elf_aux_info(AT_HWCAP2, &cpufeatures, sizeof(cpufeatures));
if (cpufeatures & PPC_FEATURE2_HAS_VEC_CRYPTO) arch_ppc_crc32 = 1;
#endif /* __powerpc64__ */
return arch_ppc_crc32;
}
#endif // __linux__
static bool isAltiVec() {

Loading…
Cancel
Save