mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
2b778ceb40
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
/* Bug 11941: Improper assert map->l_init_called in dlclose.
|
|
Copyright (C) 2016-2021 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/>. */
|
|
|
|
/* This is the primary DSO that is loaded by the appliation. This DSO
|
|
then loads a plugin with RTLD_NODELETE. This plugin depends on this
|
|
DSO. This dependency chain means that at application shutdown the
|
|
plugin will be destructed first. Thus by the time this DSO is
|
|
destructed we will be calling dlclose on an object that has already
|
|
been destructed. It is allowed to call dlclose in this way and
|
|
should not assert. */
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <dlfcn.h>
|
|
|
|
/* Plugin to load. */
|
|
static void *plugin_lib = NULL;
|
|
/* Plugin function. */
|
|
static void (*plugin_func) (void);
|
|
#define LIB_PLUGIN "tst-nodelete-dlclose-plugin.so"
|
|
|
|
/* This function is never called but the plugin references it.
|
|
We do this to avoid any future --as-needed from removing the
|
|
plugin's DT_NEEDED on this DSO (required for the test). */
|
|
void
|
|
primary_reference (void)
|
|
{
|
|
printf ("INFO: Called primary_reference function.\n");
|
|
}
|
|
|
|
void
|
|
primary (void)
|
|
{
|
|
char *error;
|
|
|
|
plugin_lib = dlopen (LIB_PLUGIN, RTLD_NOW | RTLD_LOCAL | RTLD_NODELETE);
|
|
if (plugin_lib == NULL)
|
|
{
|
|
printf ("ERROR: Unable to load plugin library.\n");
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
dlerror ();
|
|
|
|
plugin_func = (void (*) (void)) dlsym (plugin_lib, "plugin_func");
|
|
error = dlerror ();
|
|
if (error != NULL)
|
|
{
|
|
printf ("ERROR: Unable to find symbol with error \"%s\".",
|
|
error);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
__attribute__ ((destructor))
|
|
static void
|
|
primary_dtor (void)
|
|
{
|
|
int ret;
|
|
|
|
printf ("INFO: Calling primary destructor.\n");
|
|
|
|
/* The destructor runs in the test driver also, which
|
|
hasn't called primary, in that case do nothing. */
|
|
if (plugin_lib == NULL)
|
|
return;
|
|
|
|
ret = dlclose (plugin_lib);
|
|
if (ret != 0)
|
|
{
|
|
printf ("ERROR: Calling dlclose failed with \"%s\"\n",
|
|
dlerror ());
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
}
|