From 4f0f217c1b6a8c888ff8a1c60d1eb36cbdf14490 Mon Sep 17 00:00:00 2001 From: Nathan Binkert Date: Sat, 26 May 2007 18:15:22 -0700 Subject: Get rid of GNU libelf and its autoconf nastiness and replace it with FreeBSD's implementation --HG-- extra : convert_revision : ef9c4551b9a6b54b76a89f286ff9804c55790621 --- ext/libelf/elf_hash.c | 52 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 ext/libelf/elf_hash.c (limited to 'ext/libelf/elf_hash.c') diff --git a/ext/libelf/elf_hash.c b/ext/libelf/elf_hash.c new file mode 100644 index 000000000..b2e4a0ac0 --- /dev/null +++ b/ext/libelf/elf_hash.c @@ -0,0 +1,52 @@ +/*- + * Copyright (c) 2006 Joseph Koshy + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + + +#include "libelf.h" + +/* + * This elf_hash function is defined by the System V ABI. It must be + * kept compatible with "src/libexec/rtld-elf/rtld.c". + */ + +unsigned long +elf_hash(const char *name) +{ + unsigned long h, t; + const unsigned char *s; + + s = (const unsigned char *) name; + h = t = 0; + + for (; *s != '\0'; h = h & ~t) { + h = (h << 4) + *s++; + t = h & 0xF0000000UL; + if (t) + h ^= t >> 24; + } + + return (h); +} -- cgit v1.2.3