diff options
Diffstat (limited to 'elf/simple-dl-new-hash.h')
-rw-r--r-- | elf/simple-dl-new-hash.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/elf/simple-dl-new-hash.h b/elf/simple-dl-new-hash.h new file mode 100644 index 0000000000..1437b1bd36 --- /dev/null +++ b/elf/simple-dl-new-hash.h @@ -0,0 +1,36 @@ +/* __simple_dl_new_hash for testing true elf symbol lookup. + Copyright (C) 2022 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 _SIMPLE_DL_NEW_HASH_H +#define _SIMPLE_DL_NEW_HASH_H 1 + +#include <stdint.h> + +/* For testing/benchmarking purposes. Real implementation in + sysdeps/generic/dl-new-hash.h. */ +static uint32_t +__attribute__ ((unused)) +__simple_dl_new_hash (const char *s) +{ + uint32_t h = 5381; + for (unsigned char c = *s; c != '\0'; c = *++s) + h = h * 33 + c; + return h; +} + +#endif /* simple-dl-new-hash.h */ |