mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 07:10:06 +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
114 lines
3.1 KiB
C
114 lines
3.1 KiB
C
/* Test error reporting for dlsym, dlvsym failures.
|
|
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/>. */
|
|
|
|
#include <dlfcn.h>
|
|
#include <gnu/lib-names.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
/* Used to disambiguate symbol names. */
|
|
static int counter;
|
|
|
|
static void
|
|
test_one (void *handle, const char *name, void *(func) (void *, const char *),
|
|
const char *suffix)
|
|
{
|
|
++counter;
|
|
char symbol[32];
|
|
snprintf (symbol, sizeof (symbol), "no_such_symbol_%d", counter);
|
|
char *expected_message;
|
|
if (asprintf (&expected_message, ": undefined symbol: %s%s",
|
|
symbol, suffix) < 0)
|
|
{
|
|
printf ("error: asprintf: %m\n");
|
|
abort ();
|
|
}
|
|
|
|
void *addr = func (handle, symbol);
|
|
if (addr != NULL)
|
|
{
|
|
printf ("error: %s: found symbol \"no_such_symbol\"\n", name);
|
|
abort ();
|
|
}
|
|
const char *message = dlerror ();
|
|
if (message == NULL)
|
|
{
|
|
printf ("error: %s: missing error message\n", name);
|
|
abort ();
|
|
}
|
|
const char *message_without_path = strchrnul (message, ':');
|
|
if (strcmp (message_without_path, expected_message) != 0)
|
|
{
|
|
printf ("error: %s: unexpected error message: %s\n", name, message);
|
|
abort ();
|
|
}
|
|
free (expected_message);
|
|
|
|
message = dlerror ();
|
|
if (message != NULL)
|
|
{
|
|
printf ("error: %s: unexpected error message: %s\n", name, message);
|
|
abort ();
|
|
}
|
|
}
|
|
|
|
static void
|
|
test_handles (const char *name, void *(func) (void *, const char *),
|
|
const char *suffix)
|
|
{
|
|
test_one (RTLD_DEFAULT, name, func, suffix);
|
|
test_one (RTLD_NEXT, name, func, suffix);
|
|
|
|
void *handle = dlopen (LIBC_SO, RTLD_LAZY);
|
|
if (handle == NULL)
|
|
{
|
|
printf ("error: cannot dlopen %s: %s\n", LIBC_SO, dlerror ());
|
|
abort ();
|
|
}
|
|
test_one (handle, name, func, suffix);
|
|
dlclose (handle);
|
|
}
|
|
|
|
static void *
|
|
dlvsym_no_such_version (void *handle, const char *name)
|
|
{
|
|
return dlvsym (handle, name, "NO_SUCH_VERSION");
|
|
}
|
|
|
|
static void *
|
|
dlvsym_glibc_private (void *handle, const char *name)
|
|
{
|
|
return dlvsym (handle, name, "GLIBC_PRIVATE");
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
test_handles ("dlsym", dlsym, "");
|
|
test_handles ("dlvsym", dlvsym_no_such_version,
|
|
", version NO_SUCH_VERSION");
|
|
test_handles ("dlvsym", dlvsym_glibc_private,
|
|
", version GLIBC_PRIVATE");
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
#include <support/test-driver.c>
|