Add working pipe implementation for sparc

Also get rid of warning in sparc sigaction

Signed-off-by: Austin Foxley <austinf@cetoncorp.com>

libc/sysdeps/linux/sparc/Makefile.arch

@@ -9,6 +9,6 @@ CSRC := brk.c __syscall_error.c qp_ops.c sigaction.c
 
 SSRC := \
 	__longjmp.S fork.S vfork.S clone.S setjmp.S bsd-setjmp.S bsd-_setjmp.S \
-	syscall.S urem.S udiv.S umul.S sdiv.S rem.S
+	syscall.S urem.S udiv.S umul.S sdiv.S rem.S pipe.S
 
 include $(top_srcdir)libc/sysdeps/linux/Makefile.commonarch

libc/sysdeps/linux/sparc/pipe.S

@@ -0,0 +1,62 @@
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jj@ultra.linux.cz>, 1999.
+
+   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.  
+ 
+   Ported to uClibc by:
+   Austin Foxley, Ceton Corporation <austinf@cetoncorp.com>
+ */
+
+#include <features.h>
+#include <sys/syscall.h>
+#include <asm/errno.h>
+
+.text
+.global	pipe
+.type	pipe, @function
+.align 4
+
+pipe:
+	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_pipe,%g1
+	ta	0x10
+	bcs	.Lerror
+	 nop
+ 
+    st %o0,[%i0]
+    st %o1,[%i0+4]
+	ret
+	 restore %o0,%g0,%o0
+
+.Lerror:
+	call	__errno_location
+	 or	%g0,EINVAL,%i0
+	st	%i0,[%o0]
+	ret
+	 restore %g0,-1,%o0
+
+.size pipe,.-pipe
+libc_hidden_def(pipe)

libc/sysdeps/linux/sparc/sigaction.c

@@ -38,7 +38,7 @@ int
 __libc_sigaction (int sig, __const struct sigaction *act, struct sigaction *oact)
 {
     int ret;
-	struct old_kernel_sigaction kact, koact;
+    struct old_kernel_sigaction kact, koact;
     unsigned long stub = 0;
     int saved_errno = errno;
     
@@ -54,7 +54,11 @@ __libc_sigaction (int sig, __const struct sigaction *act, struct sigaction *oact
         kact.sa_restorer = NULL;
     }
     /* XXX The size argument hopefully will have to be changed to the real size of the user-level sigset_t.  */
-    ret = rt_sigaction(sig, act ? &kact : NULL, oact ? &koact : NULL, stub, _NSIG / 8);
+    ret = rt_sigaction(sig, 
+	(int)(act ? &kact : NULL), 
+	(int)(oact ? &koact : NULL), 
+	stub, 
+	_NSIG / 8);
 
     if (ret >= 0 || errno != ENOSYS)
     {