Adjust sparc port do it now actually works.

 -Erik

1 files changed, 72 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/sparc/clone.S b/libc/sysdeps/linux/sparc/clone.S
new file mode 100644
index 000000000..9af88688c
--- /dev/null
+++ b/libc/sysdeps/linux/sparc/clone.S
@@ -0,0 +1,72 @@
+/* Copyright (C) 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@tamu.edu).
+
+   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.  */
+
+/* clone() is even more special than fork() as it mucks with stacks
+   and invokes a function in the right context after its all over.  */
+
+#include <asm/errno.h>
+#include <asm/unistd.h>
+
+/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
+
+	.text
+	.align	4
+	.globl	__clone
+	.type	__clone,@function
+
+__clone:
+	save	%sp,-96,%sp
+
+	/* sanity check arguments */
+	tst	%i0
+	be	.Lerror
+	 orcc	%i1,%g0,%o1
+	be	.Lerror
+	 mov	%i2,%o0
+
+	/* Do the system call */
+	set	__NR_clone,%g1
+	ta	0x10
+	bcs	.Lerror
+	 tst	%o1
+	bne	__thread_start
+	 nop
+	ret
+	 restore %o0,%g0,%o0
+
+.Lerror:
+	call	__errno_location
+	 or	%g0,EINVAL,%i0
+	st	%i0,[%o0]
+	ret
+	 restore %g0,-1,%o0
+
+	.size	__clone, .-__clone
+
+	.type	__thread_start,@function
+
+__thread_start:
+	call	%i0
+	 mov	%i3,%o0
+	call	_exit,0
+	 nop
+
+	.size	__thread_start, .-__thread_start
+
+.weak    clone    ;        clone    =   __clone