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/* __simple_dl_elf_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_ELF_HASH_H
#define _SIMPLE_DL_ELF_HASH_H 1
#include <stdint.h>
/* For testing/benchmarking purposes. Real implementation in
sysdeps/generic/dl-hash.h. */
static uint32_t
__attribute__ ((unused))
__simple_dl_elf_hash (const char *name_arg)
{
unsigned long int hash = 0;
for (unsigned char c = *name_arg; c != '\0'; c = *(++name_arg))
{
unsigned long int hi;
hash = (hash << 4) + c;
hi = hash & 0xf0000000;
hash ^= hi >> 24;
hash &= 0x0fffffff;
}
return hash;
}
#endif /* simple-dl-hash.h */
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