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-rw-r--r--sysdeps/unix/arm/start.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/sysdeps/unix/arm/start.c b/sysdeps/unix/arm/start.c
new file mode 100644
index 0000000000..772384727a
--- /dev/null
+++ b/sysdeps/unix/arm/start.c
@@ -0,0 +1,85 @@
+/* Special startup code for ARM a.out binaries.
+ Copyright (C) 1998 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sysdep.h>
+
+/* The first piece of initialized data. */
+int __data_start = 0;
+#ifdef HAVE_WEAK_SYMBOLS
+weak_alias (__data_start, data_start)
+#endif
+
+#ifndef errno
+volatile int __errno;
+strong_alias (__errno, errno)
+#endif
+
+extern void __libc_init __P ((int argc, char **argv, char **envp));
+extern int main __P ((int argc, char **argv, char **envp));
+
+/* N.B.: It is important that this be the first function.
+ This file is the first thing in the text section. */
+
+/* If this was in C it might create its own stack frame and
+ screw up the arguments. */
+#ifdef NO_UNDERSCORES
+asm (".text; .globl _start; _start: B start1");
+#else
+asm (".text; .globl __start; __start: B _start1");
+
+/* Make an alias called `start' (no leading underscore, so it can't
+ conflict with C symbols) for `_start'. This is the name vendor crt0.o's
+ tend to use, and thus the name most linkers expect. */
+asm (".set start, __start");
+#endif
+
+/* Fool gcc into thinking that more args are passed. This makes it look
+ on the stack (correctly) for the real arguments. It causes somewhat
+ strange register usage in start1(), but we aren't too bothered about
+ that at the moment. */
+#define DUMMIES a1, a2, a3, a4
+
+#ifdef DUMMIES
+#define ARG_DUMMIES DUMMIES,
+#define DECL_DUMMIES int DUMMIES;
+#else
+#define ARG_DUMMIES
+#define DECL_DUMMIES
+#endif
+
+/* ARGSUSED */
+static void
+start1 (ARG_DUMMIES argc, argv, envp)
+ DECL_DUMMIES
+ int argc;
+ char **argv;
+ char **envp;
+{
+ /* Store a pointer to the environment. */
+ __environ = envp;
+
+ /* Do C library initializations. */
+ __libc_init (argc, argv, __environ);
+
+ /* Call the user program. */
+ exit (main (argc, argv, __environ));
+}