Import the ELF dynamic linker. This is the ElfKit version with

quite a few enhancements and bug fixes.  There are still some known
deficiencies, but it should be adequate to get us started with ELF.

Submitted by:	John Polstra <jdp@polstra.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/libexec/rtld-elf/xmalloc.c b/libexec/rtld-elf/xmalloc.c
new file mode 100644
index 0000000..18a073b
--- /dev/null
+++ b/libexec/rtld-elf/xmalloc.c
@@ -0,0 +1,57 @@
+/*-
+ * Copyright 1996-1998 John D. Polstra.
+ * 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 ``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.
+ *
+ *      $Id: xmalloc.c,v 1.1 1998/03/05 21:05:54 jdp Exp $
+ */
+
+#include <err.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+void *xmalloc(size_t);
+
+void *
+xcalloc(size_t size)
+{
+    return memset(xmalloc(size), 0, size);
+}
+
+void *
+xmalloc(size_t size)
+{
+    void *p = malloc(size);
+    if (p == NULL)
+	err(1, "Out of memory");
+    return p;
+}
+
+char *
+xstrdup(const char *s)
+{
+    char *p = strdup(s);
+    if (p == NULL)
+	err(1, "Out of memory");
+    return p;
+}