diff options
| -rw-r--r-- | libc/sysdeps/linux/alpha/Makefile.arch | 5 | ||||
| -rw-r--r-- | libc/sysdeps/linux/alpha/pipe.S | 48 |
2 files changed, 51 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/alpha/Makefile.arch b/libc/sysdeps/linux/alpha/Makefile.arch index 84e0561ec..0a0fbdba4 100644 --- a/libc/sysdeps/linux/alpha/Makefile.arch +++ b/libc/sysdeps/linux/alpha/Makefile.arch @@ -1,6 +1,6 @@ # Makefile for uClibc # -# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org> +# Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> # # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # @@ -9,6 +9,7 @@ CSRC := __syscall_error.c sigprocmask.c SSRC := \ __longjmp.S brk.S bsd-_setjmp.S bsd-setjmp.S clone.S \ - divl.S divq.S reml.S remq.S rt_sigaction.S setjmp.S syscall.S + divl.S divq.S pipe.S reml.S remq.S rt_sigaction.S setjmp.S \ + syscall.S include $(top_srcdir)libc/sysdeps/linux/Makefile.commonarch 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) |