XEmacs 21.2-b1

[chise/xemacs-chise.git.1] / dynodump / syms.c

diff --git a/dynodump/syms.c b/dynodump/syms.c
new file mode 100644 (file)
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+++ b/dynodump/syms.c
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+/*
+ *     Copyright (c) 1995 by Sun Microsystems, Inc.
+ *     All rights reserved.
+ *
+ * This source code is a product of Sun Microsystems, Inc. and is provided
+ * for unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part.  Users
+ * may copy or modify this source code without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user.
+ *
+ * THIS PROGRAM CONTAINS SOURCE CODE COPYRIGHTED BY SUN MICROSYSTEMS, INC.
+ * SUN MICROSYSTEMS, INC., MAKES NO REPRESENTATIONS ABOUT THE SUITABLITY
+ * OF SUCH SOURCE CODE FOR ANY PURPOSE.  IT IS PROVIDED "AS IS" WITHOUT
+ * EXPRESS OR IMPLIED WARRANTY OF ANY KIND.  SUN MICROSYSTEMS, INC. DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO SUCH SOURCE CODE, INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN
+ * NO EVENT SHALL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+ * FROM USE OF SUCH SOURCE CODE, REGARDLESS OF THE THEORY OF LIABILITY.
+ * 
+ * This source code is provided with no support and without any obligation on
+ * the part of Sun Microsystems, Inc. to assist in its use, correction, 
+ * modification or enhancement.
+ *
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THIS
+ * SOURCE CODE OR ANY PART THEREOF.
+ *
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California 94043
+ */
+
+/*
+ * Update the value of the `_edata' and `_end' symbols.
+ */
+#pragma ident  "@(#) $Id: syms.c,v 1.3 1997/05/29 04:22:30 steve Exp $ - SMI"
+
+#include       <libelf.h>
+#include       <string.h>
+#include       "machdep.h"
+#include       "_dynodump.h"
+
+void
+update_sym(Cache * cache, Cache * _cache, Addr edata)
+{
+    char *strs;
+    Sym *syms;
+    Shdr *shdr;
+    int        symn, cnt;
+
+    /*
+     * Set up to read the symbol table and its associated string table.
+     */
+    shdr = _cache->c_shdr;
+    syms = (Sym *) _cache->c_data->d_buf;
+    symn = shdr->sh_size / shdr->sh_entsize;
+
+    strs = (char *) cache[shdr->sh_link].c_data->d_buf;
+
+    /*
+     * Loop through the symbol table looking for `_end' and `_edata'.
+     */
+    for (cnt = 0; cnt < symn; cnt++, syms++) {
+       char *name = strs + syms->st_name;
+
+       if (strcmp(name, "_end") && strcmp(name, "_edata"))
+           continue;
+
+       syms->st_value = edata;
+    }
+}