Pete Popov writes:

Hi Erik,

I'm not sure why the NIOS support is not in uClibc -- perhaps the patch
was rejected or never submitted? In any case, I'm playing with some NIOS
stuff and created this patch against 0.9.26. The work was done by
Microtronix. I'm not sure who else contributed to it. It would be great
to have the NIOS support available in uClibc so developers don't have to
go searching for these bits.

Pete

1 files changed, 57 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/nios/crt0.S b/libc/sysdeps/linux/nios/crt0.S
new file mode 100644
index 000000000..bbf4ede6a
--- /dev/null
+++ b/libc/sysdeps/linux/nios/crt0.S
@@ -0,0 +1,57 @@
+/* Copyright (C) 1991, 1992 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <features.h>
+#include <asm/unistd.h>
+#include "NM_Macros.S"
+#define __ASSEMBLY__
+#include <asm/ptrace.h>		/* for REGWIN_SZ */
+
+    .global _start
+    .type   __start,@function
+    .weak   _init
+    .weak   _fini
+    .type   __uClibc_start_main,@function
+    .type   __h_errno_location, @function
+    .type   _stdio_init, @function
+    .type   _stdio_term, @function
+
+	.text
+
+_start: 
+	nop
+	nop
+
+	lds	%o0,[%sp, (REGWIN_SZ / 4) + 0]	// main's argc
+	lds	%o1,[%sp, (REGWIN_SZ / 4) + 1]	// main's argv
+	lds	%o2,[%sp, (REGWIN_SZ / 4) + 2]	// main's envp
+
+	MOVIA	%o3, _init@h
+	MOVIA	%o4, _fini@h
+	MOVIA	%o5, __uClibc_start_main@h
+	
+	call	%o5
+	nop
+
+
+	/* If that didn't kill us, ... */
+__exit:
+	MOVIP	%g1, __NR_exit
+	trap	63
+	
\ No newline at end of file