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/*
* pipe syscall for uClibc sh
*
* Copyright (C) 2001 Lineo, <davidm@lineo.com>
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <errno.h>
#include <unistd.h>
#include <syscall.h>
int pipe(int *fd)
{
long __res, __res2;
__asm__ __volatile__ (
"mov %2, r3;"
"mov %3, r4;"
"trapa %4;"
"mov r1, %1;"
: "=z" (__res),
"=r" ((long) __res2)
: "r" ((long) __NR_pipe),
"r" ((long) fd),
"i" (__SH_SYSCALL_TRAP_BASE + 3)
: "cc", "memory", "r1", "r3", "r4");
if ((unsigned long)(__res) >= (unsigned long)(-125)) {
int __err = -(__res);
errno = __err;
return(-1);
}
fd[0] = __res;
fd[1] = __res2;
return(0);
}
libc_hidden_def(pipe)
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