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/* Check LD_AUDIT and LD_BIND_NOW.
Copyright (C) 2022 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 <array_length.h>
#include <errno.h>
#include <getopt.h>
#include <limits.h>
#include <inttypes.h>
#include <string.h>
#include <stdlib.h>
#include <support/capture_subprocess.h>
#include <support/check.h>
#include <support/xstdio.h>
#include <support/support.h>
#include <sys/auxv.h>
static int restart;
#define CMDLINE_OPTIONS \
{ "restart", no_argument, &restart, 1 },
void tst_audit25mod1_func1 (void);
void tst_audit25mod1_func2 (void);
void tst_audit25mod2_func1 (void);
void tst_audit25mod2_func2 (void);
static int
handle_restart (void)
{
tst_audit25mod1_func1 ();
tst_audit25mod1_func2 ();
tst_audit25mod2_func1 ();
tst_audit25mod2_func2 ();
return 0;
}
static inline bool
startswith (const char *str, const char *pre)
{
size_t lenpre = strlen (pre);
size_t lenstr = strlen (str);
return lenstr < lenpre ? false : memcmp (pre, str, lenpre) == 0;
}
static int
do_test (int argc, char *argv[])
{
/* We must have either:
- One or four parameters left if called initially:
+ path to ld.so optional
+ "--library-path" optional
+ the library path optional
+ the application name */
if (restart)
return handle_restart ();
setenv ("LD_AUDIT", "tst-auditmod25.so", 0);
char *spargv[9];
int i = 0;
for (; i < argc - 1; i++)
spargv[i] = argv[i + 1];
spargv[i++] = (char *) "--direct";
spargv[i++] = (char *) "--restart";
spargv[i] = NULL;
TEST_VERIFY_EXIT (i < array_length (spargv));
{
struct support_capture_subprocess result
= support_capture_subprogram (spargv[0], spargv);
support_capture_subprocess_check (&result, "tst-audit25a", 0,
sc_allow_stderr);
/* tst-audit25a is build with -Wl,-z,lazy and tst-audit25mod1 with
-Wl,-z,now; so only tst_audit25mod3_func1 should be expected to
have LA_SYMB_NOPLTENTER | LA_SYMB_NOPLTEXIT. */
TEST_COMPARE_STRING (result.err.buffer,
"la_symbind: tst_audit25mod3_func1 1\n"
"la_symbind: tst_audit25mod1_func1 0\n"
"la_symbind: tst_audit25mod1_func2 0\n"
"la_symbind: tst_audit25mod2_func1 0\n"
"la_symbind: tst_audit25mod4_func1 0\n"
"la_symbind: tst_audit25mod2_func2 0\n");
support_capture_subprocess_free (&result);
}
{
setenv ("LD_BIND_NOW", "1", 0);
struct support_capture_subprocess result
= support_capture_subprogram (spargv[0], spargv);
support_capture_subprocess_check (&result, "tst-audit25a", 0,
sc_allow_stderr);
/* With LD_BIND_NOW all symbols are expected to have
LA_SYMB_NOPLTENTER | LA_SYMB_NOPLTEXIT. Also the resolution
order is done in breadth-first order. */
TEST_COMPARE_STRING (result.err.buffer,
"la_symbind: tst_audit25mod4_func1 1\n"
"la_symbind: tst_audit25mod3_func1 1\n"
"la_symbind: tst_audit25mod1_func1 1\n"
"la_symbind: tst_audit25mod2_func1 1\n"
"la_symbind: tst_audit25mod1_func2 1\n"
"la_symbind: tst_audit25mod2_func2 1\n");
support_capture_subprocess_free (&result);
}
return 0;
}
#define TEST_FUNCTION_ARGV do_test
#include <support/test-driver.c>
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