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b168057a | 1 | /* Copyright (C) 2004-2015 Free Software Foundation, Inc. |
cd2fbe58 | 2 | This file is part of the GNU C Library. |
d3a4a571 | 3 | Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. |
cd2fbe58 UD |
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 | |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
cd2fbe58 UD |
18 | |
19 | #include <sysdep.h> | |
d3a4a571 | 20 | #include <tcb-offsets.h> |
cd2fbe58 | 21 | |
d3a4a571 | 22 | .text |
7ccbe1a1 | 23 | .globl __syscall_error |
d3a4a571 UD |
24 | ENTRY(__vfork) |
25 | ld [%g7 + PID], %o5 | |
26 | sethi %hi(0x80000000), %o3 | |
27 | cmp %o5, 0 | |
28 | sub %g0, %o5, %o4 | |
29 | move %icc, %o3, %o4 | |
30 | st %o4, [%g7 + PID] | |
31 | ||
32 | LOADSYSCALL(vfork) | |
33 | ta 0x6d | |
7ccbe1a1 RM |
34 | bcc,pt %xcc, 2f |
35 | mov %o7, %g1 | |
36 | st %o5, [%g7 + PID] | |
37 | call __syscall_error | |
38 | mov %g1, %o7 | |
39 | 2: sub %o1, 1, %o1 | |
d3a4a571 UD |
40 | andcc %o0, %o1, %o0 |
41 | bne,a,pt %icc, 1f | |
42 | st %o5, [%g7 + PID] | |
43 | 1: retl | |
44 | nop | |
7ccbe1a1 | 45 | END(__vfork) |
cd2fbe58 | 46 | |
73b4ce64 | 47 | libc_hidden_def (__vfork) |
cd2fbe58 | 48 | weak_alias (__vfork, vfork) |
f6fdf533 | 49 | strong_alias (__vfork, __libc_vfork) |