From ff08fc59e36e02074eba8ab39b0d9001363970f0 Mon Sep 17 00:00:00 2001 From: Siddhesh Poyarekar Date: Thu, 1 Jun 2017 22:32:03 +0530 Subject: tunables: Use glibc.tune.hwcap_mask tunable instead of _dl_hwcap_mask Drop _dl_hwcap_mask when building with tunables. This completes the transition of hwcap_mask reading from _dl_hwcap_mask to tunables. * elf/dl-hwcaps.h: New file. * elf/dl-hwcaps.c: Include it. (_dl_important_hwcaps)[HAVE_TUNABLES]: Read and update glibc.tune.hwcap_mask. * elf/dl-cache.c: Include dl-hwcaps.h. (_dl_load_cache_lookup)[HAVE_TUNABLES]: Read glibc.tune.hwcap_mask. * sysdeps/sparc/sparc32/dl-machine.h: Likewise. * elf/dl-support.c (_dl_hwcap2)[HAVE_TUNABLES]: Drop _dl_hwcap_mask. * elf/rtld.c (rtld_global_ro)[HAVE_TUNABLES]: Drop _dl_hwcap_mask. (process_envvars)[HAVE_TUNABLES]: Likewise. * sysdeps/generic/ldsodefs.h (rtld_global_ro)[HAVE_TUNABLES]: Likewise. * sysdeps/x86/cpu-features.c (init_cpu_features): Don't initialize dl_hwcap_mask when tunables are enabled. --- sysdeps/sparc/sparc32/dl-machine.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'sysdeps/sparc/sparc32') diff --git a/sysdeps/sparc/sparc32/dl-machine.h b/sysdeps/sparc/sparc32/dl-machine.h index e17ac8e4cd..f9ae13300d 100644 --- a/sysdeps/sparc/sparc32/dl-machine.h +++ b/sysdeps/sparc/sparc32/dl-machine.h @@ -27,6 +27,7 @@ #include #include #include +#include /* Return nonzero iff ELF header is compatible with the running host. */ static inline int @@ -37,7 +38,8 @@ elf_machine_matches_host (const Elf32_Ehdr *ehdr) else if (ehdr->e_machine == EM_SPARC32PLUS) { #ifdef SHARED - return GLRO(dl_hwcap) & GLRO(dl_hwcap_mask) & HWCAP_SPARC_V9; + uint64_t hwcap_mask = GET_HWCAP_MASK(); + return GLRO(dl_hwcap) & hwcap_mask & HWCAP_SPARC_V9; #else return GLRO(dl_hwcap) & HWCAP_SPARC_V9; #endif -- cgit 1.4.1