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author | Richard Henderson <rth@twiddle.net> | 2012-05-20 10:34:00 -0700 |
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committer | Richard Henderson <rth@twiddle.net> | 2012-05-20 10:40:35 -0700 |
commit | c7683a6d02f3ed59f5cd119b3e8547f45a15912f (patch) | |
tree | 029e73af4f78064dc5788972d5fc3a86fc70f1d6 /misc/getauxval.c | |
parent | a6f1845d45d0ea9303b3c71944c0a511e23bde26 (diff) | |
download | glibc-c7683a6d02f3ed59f5cd119b3e8547f45a15912f.zip glibc-c7683a6d02f3ed59f5cd119b3e8547f45a15912f.tar.gz glibc-c7683a6d02f3ed59f5cd119b3e8547f45a15912f.tar.bz2 |
Add <sys/auxv.h> and getauxval.
Diffstat (limited to 'misc/getauxval.c')
-rw-r--r-- | misc/getauxval.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/misc/getauxval.c b/misc/getauxval.c new file mode 100644 index 0000000..a3338ee --- /dev/null +++ b/misc/getauxval.c @@ -0,0 +1,36 @@ +/* Copyright (C) 2012 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 + <http://www.gnu.org/licenses/>. */ + +#include <sys/auxv.h> +#include <ldsodefs.h> + + +unsigned long +__getauxval (unsigned long type) +{ + ElfW(auxv_t) *p; + + if (type == AT_HWCAP) + return GLRO(dl_hwcap); + + for (p = GLRO(dl_auxv); p->a_type != AT_NULL; p++) + if (p->a_type == type) + return p->a_un.a_val; + return 0; +} + +weak_alias (__getauxval, getauxval) |