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1/* Copyright (C) 2004-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
17
18#include <sysdep.h>
19#define _ERRNO_H 1
20#include <bits/errno.h>
21#include <tcb-offsets.h>
22
23/* Clone the calling process, but without copying the whole address space.
24 The calling process is suspended until the new process exits or is
25 replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
26 and the process ID of the new process to the old process. */
27
28ENTRY (__libc_vfork)
29
30 mov.w .L1, r3
31 trapa #0x10
32 mov r0, r1
33
34 mov #-12, r2
35 shad r2, r1
36 not r1, r1 // r1=0 means r0 = -1 to -4095
37 tst r1, r1 // i.e. error in linux
38 bf .Lpseudo_end
39 SYSCALL_ERROR_HANDLER
40.Lpseudo_end:
41 rts
42 nop
43.L1:
44 .word __NR_vfork
45 .align 2
46PSEUDO_END (__libc_vfork)
47
48#if IS_IN (libc)
49weak_alias (__libc_vfork, vfork)
50strong_alias (__libc_vfork, __vfork)
51libc_hidden_def (__vfork)
52#endif
53

Warning: That file was not part of the compilation database. It may have many parsing errors.