/* vi: set sw=4 ts=4: */ /* * 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> /* libc_hidden_proto(pipe) */ 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)