glibc/elf/dl-new-hash.h

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/* _dl_new_hash for 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 _DL_NEW_HASH_H
#define _DL_NEW_HASH_H 1
#include <stdint.h>
/* For __always_inline. */
#include <sys/cdefs.h>
static __always_inline uint32_t
__attribute__ ((unused))
_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;
}
/* For testing/benchmarking purposes. */
#define __simple_dl_new_hash _dl_new_hash
#endif /* dl-new-hash.h */