about summary refs log tree commit diff
path: root/sysdeps/arm/init-first.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/arm/init-first.c')
-rw-r--r--sysdeps/arm/init-first.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/sysdeps/arm/init-first.c b/sysdeps/arm/init-first.c
new file mode 100644
index 0000000000..652cf95d14
--- /dev/null
+++ b/sysdeps/arm/init-first.c
@@ -0,0 +1,73 @@
+/* Initialization code run first thing by the ELF startup code.  For ARM.
+   Copyright (C) 1995,1996,1997,1998,2001,2002 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <unistd.h>
+
+extern void __libc_init (int, char **, char **);
+#ifdef USE_NONOPTION_FLAGS
+extern void __getopt_clean_environment (char **);
+#endif
+extern void __libc_global_ctors (void);
+
+int __libc_multiple_libcs attribute_hidden = 1;
+
+static void
+init (int *data)
+{
+  int argc = *data;
+  char **argv = (void *) (data + 1);
+  char **envp = &argv[argc + 1];
+
+  __environ = envp;
+  __libc_init (argc, argv, envp);
+
+#ifdef USE_NONOPTION_FLAGS
+  /* This is a hack to make the special getopt in GNU libc working.  */
+  __getopt_clean_environment (envp);
+#endif
+}
+
+#ifdef SHARED
+/* This function is called to initialize the shared C library.
+   It is called just before the user _start code from i386/elf/start.S,
+   with the stack set up as that code gets it.  */
+
+/* NOTE!  The linker notices the magical name `_init' and sets the DT_INIT
+   pointer in the dynamic section based solely on that.  It is convention
+   for this function to be in the `.init' section, but the symbol name is
+   the only thing that really matters!!  */
+/*void _init (int argc, ...) __attribute__ ((unused, section (".init")));*/
+
+void
+_init (int argc, ...)
+{
+  init (&argc);
+
+  __libc_global_ctors ();
+}
+#endif
+
+
+void
+__libc_init_first (int argc __attribute__ ((unused)), ...)
+{
+#ifndef SHARED
+  init (&argc);
+#endif
+}