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author | Florian Weimer <fweimer@redhat.com> | 2021-05-19 11:09:57 +0200 |
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committer | Florian Weimer <fweimer@redhat.com> | 2021-05-19 11:09:57 +0200 |
commit | eb24865637a271ab7dad13190330105eab0d478d (patch) | |
tree | 302f789e160b6f2ea0fe87e80f5dfad86c2119e6 | |
parent | 4ad473e97acdc5f6d811755b67c09f2128a644ce (diff) | |
download | glibc-eb24865637a271ab7dad13190330105eab0d478d.tar.gz glibc-eb24865637a271ab7dad13190330105eab0d478d.tar.xz glibc-eb24865637a271ab7dad13190330105eab0d478d.zip |
elf: Add hook for checking HWCAP bits after auxiliary vector parsing
Reviewed-by: Stefan Liebler <stli@linux.ibm.com>
-rw-r--r-- | elf/dl-sysdep.c | 3 | ||||
-rw-r--r-- | sysdeps/generic/dl-hwcap-check.h | 28 |
2 files changed, 31 insertions, 0 deletions
diff --git a/elf/dl-sysdep.c b/elf/dl-sysdep.c index bd5066fe3b..d47bef1340 100644 --- a/elf/dl-sysdep.c +++ b/elf/dl-sysdep.c @@ -46,6 +46,7 @@ #include <dl-tunables.h> #include <dl-auxv.h> +#include <dl-hwcap-check.h> extern char **_environ attribute_hidden; extern char _end[] attribute_hidden; @@ -190,6 +191,8 @@ _dl_sysdep_start (void **start_argptr, DL_PLATFORM_AUXV } + dl_hwcap_check (); + #ifndef HAVE_AUX_SECURE if (seen != -1) { diff --git a/sysdeps/generic/dl-hwcap-check.h b/sysdeps/generic/dl-hwcap-check.h new file mode 100644 index 0000000000..8db7a86256 --- /dev/null +++ b/sysdeps/generic/dl-hwcap-check.h @@ -0,0 +1,28 @@ +/* Check for hardware capabilities after HWCAP parsing. Generic version. + Copyright (C) 2021 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#ifndef _DL_HWCAP_CHECK_H +#define _DL_HWCAP_CHECK_H + +static inline void +dl_hwcap_check (void) +{ + /* The generic implementation does not perform any checks. */ +} + +#endif /* _DL_HWCAP_CHECK_H */ |