blob: 597a8cd023f4f2c8fcbfc2d2c30357ee514f9e3f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
/* __errno_location -- helper function for locating per-thread errno value
Copyright (C) 2002-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#if IS_IN (rtld)
/* rtld can not access TLS too early, thus rtld_errno.
Instead of making __open/__close pass errno from TLS to rtld_errno, simply
use a weak __errno_location using rtld_errno, which will be overriden by the
libc definition. */
static int rtld_errno;
int * weak_function
__errno_location (void)
{
return &rtld_errno;
}
libc_hidden_weak (__errno_location)
#else
#include "../../../csu/errno-loc.c"
#endif
|
