diff options
Diffstat (limited to 'elf/dl-hwcaps.c')
| -rw-r--r-- | elf/dl-hwcaps.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/elf/dl-hwcaps.c b/elf/dl-hwcaps.c index c437397a88..ac50fd2c38 100644 --- a/elf/dl-hwcaps.c +++ b/elf/dl-hwcaps.c @@ -24,6 +24,7 @@ #include <ldsodefs.h> #include <dl-procinfo.h> +#include <dl-hwcaps.h> #ifdef _DL_FIRST_PLATFORM # define _DL_FIRST_EXTRA (_DL_FIRST_PLATFORM + _DL_PLATFORMS_COUNT) @@ -37,8 +38,9 @@ internal_function _dl_important_hwcaps (const char *platform, size_t platform_len, size_t *sz, size_t *max_capstrlen) { + uint64_t hwcap_mask = GET_HWCAP_MASK(); /* Determine how many important bits are set. */ - uint64_t masked = GLRO(dl_hwcap) & GLRO(dl_hwcap_mask); + uint64_t masked = GLRO(dl_hwcap) & hwcap_mask; size_t cnt = platform != NULL; size_t n, m; size_t total; @@ -125,7 +127,12 @@ _dl_important_hwcaps (const char *platform, size_t platform_len, size_t *sz, LD_HWCAP_MASK environment variable (or default HWCAP_IMPORTANT). So there is no way to request ignoring an OS-supplied dsocap string and bit like you can ignore an OS-supplied HWCAP bit. */ - GLRO(dl_hwcap_mask) |= (uint64_t) mask << _DL_FIRST_EXTRA; + hwcap_mask |= (uint64_t) mask << _DL_FIRST_EXTRA; +#if HAVE_TUNABLES + TUNABLE_SET (glibc, tune, hwcap_mask, uint64_t, hwcap_mask); +#else + GLRO(dl_hwcap_mask) = hwcap_mask; +#endif size_t len; for (const char *p = dsocaps; p < dsocaps + dsocapslen; p += len + 1) { |