mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-29 14:01:20 +00:00
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
129 lines
3.0 KiB
C
129 lines
3.0 KiB
C
/* Global-scope DSO mapping test with a static executable (BZ #15022).
|
|
Copyright (C) 2013-2021 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/>. */
|
|
|
|
#include <dlfcn.h>
|
|
#include <stddef.h>
|
|
#include <stdio.h>
|
|
|
|
#define MAGIC0 0
|
|
#define MAGIC1 0x5500ffaa
|
|
#define MAGIC2 0xaaff0055
|
|
|
|
/* Mapping a DSO into the global scope used to crash in static
|
|
executables. Check that it succeeds and then that symbols from
|
|
the DSO can be accessed and operate as expected. */
|
|
static int
|
|
do_test (void)
|
|
{
|
|
unsigned int (*getfoo) (void);
|
|
void (*setfoo) (unsigned int);
|
|
unsigned int *foop;
|
|
unsigned int foo;
|
|
void *handle;
|
|
|
|
/* Try to map a module into the global scope. */
|
|
handle = dlopen ("modstatic3.so", RTLD_LAZY | RTLD_GLOBAL);
|
|
if (handle == NULL)
|
|
{
|
|
printf ("dlopen (modstatic3.so): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
/* Get at its symbols. */
|
|
foop = dlsym (handle, "foo");
|
|
if (foop == NULL)
|
|
{
|
|
printf ("dlsym (foo): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
getfoo = dlsym (handle, "getfoo");
|
|
if (getfoo == NULL)
|
|
{
|
|
printf ("dlsym (getfoo): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
setfoo = dlsym (handle, "setfoo");
|
|
if (setfoo == NULL)
|
|
{
|
|
printf ("dlsym (setfoo): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
/* Make sure the view of the initial state is consistent. */
|
|
foo = *foop;
|
|
if (foo != MAGIC0)
|
|
{
|
|
printf ("*foop: got %#x, expected %#x\n", foo, MAGIC0);
|
|
return 1;
|
|
}
|
|
|
|
foo = getfoo ();
|
|
if (foo != MAGIC0)
|
|
{
|
|
printf ("getfoo: got %#x, expected %#x\n", foo, MAGIC0);
|
|
return 1;
|
|
}
|
|
|
|
/* Likewise with one change to its state. */
|
|
setfoo (MAGIC1);
|
|
|
|
foo = *foop;
|
|
if (foo != MAGIC1)
|
|
{
|
|
printf ("*foop: got %#x, expected %#x\n", foo, MAGIC1);
|
|
return 1;
|
|
}
|
|
|
|
foo = getfoo ();
|
|
if (foo != MAGIC1)
|
|
{
|
|
printf ("getfoo: got %#x, expected %#x\n", foo, MAGIC1);
|
|
return 1;
|
|
}
|
|
|
|
/* And with another. */
|
|
setfoo (MAGIC2);
|
|
|
|
foo = *foop;
|
|
if (foo != MAGIC2)
|
|
{
|
|
printf ("*foop: got %#x, expected %#x\n", foo, MAGIC2);
|
|
return 1;
|
|
}
|
|
|
|
foo = getfoo ();
|
|
if (foo != MAGIC2)
|
|
{
|
|
printf ("getfoo: got %#x, expected %#x\n", foo, MAGIC2);
|
|
return 1;
|
|
}
|
|
|
|
/* All done, clean up. */
|
|
getfoo = NULL;
|
|
setfoo = NULL;
|
|
foop = NULL;
|
|
dlclose (handle);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|