(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

1 files changed, 97 insertions, 0 deletions

diff --git a/sysdeps/unix/arm/start.c b/sysdeps/unix/arm/start.c
new file mode 100644
index 0000000000..6bf08b1d7f
--- /dev/null
+++ b/sysdeps/unix/arm/start.c
@@ -0,0 +1,97 @@
+/* Special startup code for ARM a.out binaries.
+   Copyright (C) 1998, 2004 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file with other
+   programs, and to distribute those programs without any restriction
+   coming from the use of this file. (The GNU Lesser General Public
+   License restrictions do apply in other respects; for example, they
+   cover modification of the file, and distribution when not linked
+   into another program.)
+
+   Note that people who make modified versions of this file are not
+   obligated to grant this special exception for their modified
+   versions; it is their choice whether to do so. The GNU Lesser
+   General Public License gives permission to release a modified
+   version without this exception; this exception also makes it
+   possible to release a modified version which carries forward this
+   exception.
+
+   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 <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
+
+extern void __libc_init (int argc, char **argv, char **envp);
+extern int main (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));
+}