Initial libc ELF support. Currently only elf_hash() is implemented.

1 files changed, 49 insertions, 0 deletions

diff --git a/lib/libc/gen/elf_sup.c b/lib/libc/gen/elf_sup.c
new file mode 100644
index 00000000000..597352b0b0f
--- /dev/null
+++ b/lib/libc/gen/elf_sup.c
@@ -0,0 +1,49 @@
+/*	$OpenBSD: elf_sup.c,v 1.1 1996/04/29 04:53:28 etheisen Exp $	*/
+/*
+ * Copyright (c) 1995, 1996 Erik Theisen
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 <elf_abi.h>
+
+/*
+ * Standard ELF ABI hash function.
+ * DO NOT MODIFY THIS FUNCTION -- INVALID
+ * HASH TABLES WILL BE GENERATED!
+ */
+unsigned long
+elf_hash(name)
+        const unsigned char *name;
+{
+        register unsigned long h = 0, g;
+
+        while(*name)
+        {
+                h = (h << 4) + *name++;
+                if (g = h & 0xf0000000)
+                        h ^= g >> 24;
+                h &= ~g;
+        }
+        return h;
+} /* end elf_hash() */