add pipe from glibc to fix popen test

1 files changed, 48 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/alpha/pipe.S b/libc/sysdeps/linux/alpha/pipe.S
new file mode 100644
index 000000000..8a9236bc5
--- /dev/null
+++ b/libc/sysdeps/linux/alpha/pipe.S
@@ -0,0 +1,48 @@
+/* Copyright (C) 1993, 1995, 1997, 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by David Mosberger (davidm@cs.arizona.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.  */
+
+#include <features.h>
+#include <sys/syscall.h>
+#include <sys/regdef.h>
+#include <asm/pal.h>
+
+/* __pipe is a special syscall since it returns two values.  */
+
+.globl pipe
+.align 4
+.ent pipe, 0
+pipe:
+	.frame sp, 0, ra
+	ldgp gp,0(pv)
+	.prologue 1
+	lda v0, __NR_pipe
+	call_pal PAL_callsys
+	bne a3, $syscall_error
+
+	stl	r0, 0(a0)
+	stl	r1, 4(a0)
+	mov	zero, v0
+	ret
+
+$syscall_error:
+	jmp	zero,__syscall_error
+
+.end pipe
+
+libc_hidden_def (pipe)