diff options
Diffstat (limited to 'libc/misc/auxvt')
| -rwxr-xr-x | libc/misc/auxvt/getauxval.c | 30 |
1 files changed, 13 insertions, 17 deletions
diff --git a/libc/misc/auxvt/getauxval.c b/libc/misc/auxvt/getauxval.c index 2bdffaf2c..7610b7e5c 100755 --- a/libc/misc/auxvt/getauxval.c +++ b/libc/misc/auxvt/getauxval.c @@ -17,32 +17,28 @@ * <http://www.gnu.org/licenses/>. */ -#include "errno.h" -#include "ldso.h" -#include "sys/auxv.h" +#include <errno.h> +#include <ldso.h> +#include <sys/auxv.h> - -/* - * - * aarch64 gcc 11 uses __getauxval() in init_have_lse_atomics() - * - */ unsigned long int __getauxval (unsigned long int __type) { - if ( __type >= AUX_MAX_AT_ID ){ + // Requested value part of cached subset of auxiliary vector? + if (__type < AUX_MAX_AT_ID) { + if (_dl_auxvt[__type].a_type == __type) + return _dl_auxvt[__type].a_un.a_val; + __set_errno (ENOENT); return 0; } - if ( _dl_auxvt[__type].a_type == __type){ - return _dl_auxvt[__type].a_un.a_val; - } + // Otherwise we have to iterate the auxiliary vector. + for (ElfW(auxv_t) *entry = _dl_auxv_start; entry->a_type != AT_NULL; entry++) + if (entry->a_type == __type) + return entry->a_un.a_val; __set_errno (ENOENT); return 0; } -unsigned long int getauxval (unsigned long int __type){ - return __getauxval( __type ); -} - +weak_alias(__getauxval, getauxval) |