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MIPS' pipe(2) is weird, but MIPS' pipe2(2) is the same as everyone else's.

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arch/mips/kernel/syscall.c has a special sysm_pipe wrapper, but there's
no special treatment of pipe2 because it carries no historical baggage.

Change-Id: I892c0f690b21992c8a48276a9b732126f18fc0ee
This commit is contained in:
Elliott Hughes 2013-10-23 11:21:36 -07:00
parent 97dc3309f3
commit b8cf18b4dd
2 changed files with 0 additions and 61 deletions
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60
libc/arch-mips/bionic/pipe.S
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@ -1,60 +0,0 @@
/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* The MIPS pipe syscall returns results in two registers, which
* we have to copy into the supplied array. This prevents us from
* using an auto-generated stub.
*/
#include <asm/unistd.h>
.text
/* int pipe(int[]) */
.type pipe,@function
.global pipe
.align 4
.ent pipe
pipe:
.set noreorder
.cpload $t9
li $v0,__NR_pipe
syscall /* syscall returns results in v0,v1 */
bnez $a3, 1f /* check errno */
nop
sw $v0, 0($a0)
sw $v1, 4($a0)
j $ra
move $v0, $zero
1:
la $t9, __set_errno
j $t9
move $a0, $v0 /* delay slot, prepare args for __set_errno */
.end pipe

1
libc/arch-mips/mips.mk
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@ -10,7 +10,6 @@ _LIBC_ARCH_COMMON_SRC_FILES := \
arch-mips/bionic/ffs.S \
arch-mips/bionic/memcmp16.S \
arch-mips/bionic/memmove.c \
arch-mips/bionic/pipe.S \
arch-mips/bionic/setjmp.S \
arch-mips/bionic/sigsetjmp.S \
arch-mips/bionic/vfork.S \