git://sourceware.org / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 29d9a17d UD |
1 | /* Copyright (C) 2003 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. | |
| 3 | Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. | |
| 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 | #include <sysdep-cancel.h> | |
| 21 | ||
| 22 | .text | |
| 23 | ENTRY(__vfork) | |
| 62f29da7 | 24 | ld [%g7 + MULTIPLE_THREADS_OFFSET], %o0 |
| 574b892e UD |
25 | #ifdef SHARED |
| 26 | cmp %o0, 0 | |
| 29d9a17d | 27 | bne HIDDEN_JUMPTARGET (__fork) |
| 574b892e UD |
28 | #else |
| 29 | brnz,pn %o0, 1f | |
| 30 | #endif | |
| 29d9a17d UD |
31 | mov __NR_vfork, %g1 |
| 32 | ta 0x6d | |
| 33 | bcs,pn %xcc, __syscall_error_handler | |
| 34 | nop | |
| 35 | sub %o1, 1, %o1 | |
| 36 | retl | |
| 37 | and %o0, %o1, %o0 | |
| 574b892e UD |
38 | #ifndef SHARED |
| 39 | 1: mov %o7, %g1 | |
| 40 | call HIDDEN_JUMPTARGET(__fork) | |
| 41 | mov %g1, %o7 | |
| 42 | #endif | |
| 29d9a17d UD |
43 | SYSCALL_ERROR_HANDLER |
| 44 | PSEUDO_END (__vfork) | |
| 45 | libc_hidden_def (__vfork) | |
| 46 | weak_alias (__vfork, vfork) |