| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 1 | /* Copyright (C) 1999 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | Contributed by Jakub Jelinek <jj@ultra.linux.cz>, 1999. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, write to the Free |
| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 18 | 02111-1307 USA. |
| 19 | |
| 20 | Ported to uClibc by: |
| 21 | Austin Foxley, Ceton Corporation <austinf@cetoncorp.com> |
| 22 | */ |
| 23 | |
| 24 | #include <features.h> |
| 25 | #include <sys/syscall.h> |
| 26 | #include <asm/errno.h> |
| 27 | |
| 28 | .text |
| 29 | .global pipe |
| 30 | .type pipe, @function |
| 31 | .align 4 |
| 32 | |
| 33 | pipe: |
| 34 | save %sp,-96,%sp |
| 35 | |
| 36 | /* sanity check arguments */ |
| 37 | tst %i0 |
| 38 | be .Lerror |
| 39 | orcc %i1,%g0,%o1 |
| 40 | be .Lerror |
| 41 | mov %i2,%o0 |
| 42 | |
| 43 | /* Do the system call */ |
| 44 | set __NR_pipe,%g1 |
| 45 | ta 0x10 |
| 46 | bcs .Lerror |
| 47 | nop |
| 48 | |
| 49 | st %o0,[%i0] |
| 50 | st %o1,[%i0+4] |
| 51 | ret |
| 52 | restore %g0,%g0,%o0 |
| 53 | |
| 54 | .Lerror: |
| 55 | call HIDDEN_JUMPTARGET(__errno_location) |
| 56 | or %g0,EINVAL,%i0 |
| 57 | st %i0,[%o0] |
| 58 | ret |
| 59 | restore %g0,-1,%o0 |
| 60 | |
| 61 | .size pipe,.-pipe |
| 62 | libc_hidden_def(pipe) |