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elf: Do not assume symbol order on tst-audit25{a,b}
The static linker might impose any order or internal function position, so change the test to check if the audit prints the symbol only once in any order.
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49
elf/tst-audit25.h
Normal file
49
elf/tst-audit25.h
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@ -0,0 +1,49 @@
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/* Check LD_AUDIT and LD_BIND_NOW. Common definitions.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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static void
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compare_output (void *buffer, size_t length, const char *ref[], size_t reflen)
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{
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FILE *in = fmemopen (buffer, length, "r");
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TEST_VERIFY_EXIT (in != NULL);
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char *line = NULL;
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size_t linelen = 0;
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bool found[reflen];
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for (int i = 0; i < reflen; i++)
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found[i] = false;
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size_t nlines = 0;
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while (xgetline (&line, &linelen, in))
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{
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for (int i = 0; i < reflen; i++)
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if (strcmp (line, ref[i]) == 0)
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{
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TEST_COMPARE (found[i], false);
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found[i] = true;
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}
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nlines++;
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}
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TEST_COMPARE (reflen, nlines);
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for (int i = 0; i < reflen; i++)
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TEST_COMPARE (found[i], true);
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free (line);
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fclose (in);
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}
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@ -29,6 +29,8 @@
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#include <support/support.h>
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#include <sys/auxv.h>
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#include "tst-audit25.h"
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static int restart;
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#define CMDLINE_OPTIONS \
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{ "restart", no_argument, &restart, 1 },
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@ -82,13 +84,17 @@ do_test (int argc, char *argv[])
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/* tst-audit25a is build with -Wl,-z,lazy and tst-audit25mod1 with
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-Wl,-z,now; so only tst_audit25mod3_func1 should be expected to
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have LA_SYMB_NOPLTENTER | LA_SYMB_NOPLTEXIT. */
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TEST_COMPARE_STRING (result.err.buffer,
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"la_symbind: tst_audit25mod3_func1 1\n"
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"la_symbind: tst_audit25mod1_func1 0\n"
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"la_symbind: tst_audit25mod1_func2 0\n"
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"la_symbind: tst_audit25mod2_func1 0\n"
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"la_symbind: tst_audit25mod4_func1 0\n"
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"la_symbind: tst_audit25mod2_func2 0\n");
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const char *expected[] =
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{
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"la_symbind: tst_audit25mod1_func1 0\n",
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"la_symbind: tst_audit25mod1_func2 0\n",
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"la_symbind: tst_audit25mod2_func1 0\n",
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"la_symbind: tst_audit25mod2_func2 0\n",
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"la_symbind: tst_audit25mod3_func1 1\n",
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"la_symbind: tst_audit25mod4_func1 0\n",
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};
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compare_output (result.err.buffer, result.err.length,
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expected, array_length(expected));
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support_capture_subprocess_free (&result);
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}
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@ -103,13 +109,17 @@ do_test (int argc, char *argv[])
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/* With LD_BIND_NOW all symbols are expected to have
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LA_SYMB_NOPLTENTER | LA_SYMB_NOPLTEXIT. Also the resolution
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order is done in breadth-first order. */
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TEST_COMPARE_STRING (result.err.buffer,
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"la_symbind: tst_audit25mod4_func1 1\n"
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"la_symbind: tst_audit25mod3_func1 1\n"
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"la_symbind: tst_audit25mod1_func1 1\n"
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"la_symbind: tst_audit25mod2_func1 1\n"
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"la_symbind: tst_audit25mod1_func2 1\n"
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"la_symbind: tst_audit25mod2_func2 1\n");
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const char *expected[] =
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{
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"la_symbind: tst_audit25mod1_func1 1\n",
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"la_symbind: tst_audit25mod1_func2 1\n",
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"la_symbind: tst_audit25mod2_func1 1\n",
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"la_symbind: tst_audit25mod2_func2 1\n",
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"la_symbind: tst_audit25mod3_func1 1\n",
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"la_symbind: tst_audit25mod4_func1 1\n",
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};
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compare_output (result.err.buffer, result.err.length,
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expected, array_length(expected));
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support_capture_subprocess_free (&result);
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}
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@ -16,6 +16,7 @@
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <array_length.h>
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#include <errno.h>
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#include <getopt.h>
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#include <limits.h>
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@ -28,6 +29,8 @@
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#include <support/support.h>
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#include <sys/auxv.h>
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#include "tst-audit25.h"
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static int restart;
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#define CMDLINE_OPTIONS \
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{ "restart", no_argument, &restart, 1 },
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@ -81,13 +84,17 @@ do_test (int argc, char *argv[])
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tst-audit25mod2 is built with -Wl,-z,lazy. So only
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tst_audit25mod4_func1 (called by tst_audit25mod2_func1) should not
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have LA_SYMB_NOPLTENTER | LA_SYMB_NOPLTEXIT. */
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TEST_COMPARE_STRING (result.err.buffer,
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"la_symbind: tst_audit25mod3_func1 1\n"
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"la_symbind: tst_audit25mod1_func1 1\n"
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"la_symbind: tst_audit25mod2_func1 1\n"
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"la_symbind: tst_audit25mod1_func2 1\n"
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"la_symbind: tst_audit25mod2_func2 1\n"
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"la_symbind: tst_audit25mod4_func1 0\n");
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const char *expected[] =
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{
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"la_symbind: tst_audit25mod3_func1 1\n",
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"la_symbind: tst_audit25mod1_func1 1\n",
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"la_symbind: tst_audit25mod2_func1 1\n",
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"la_symbind: tst_audit25mod1_func2 1\n",
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"la_symbind: tst_audit25mod2_func2 1\n",
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"la_symbind: tst_audit25mod4_func1 0\n",
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};
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compare_output (result.err.buffer, result.err.length,
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expected, array_length(expected));
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support_capture_subprocess_free (&result);
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}
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@ -102,13 +109,17 @@ do_test (int argc, char *argv[])
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/* With LD_BIND_NOW all symbols are expected to have
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LA_SYMB_NOPLTENTER | LA_SYMB_NOPLTEXIT. Also the resolution
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order is done in breadth-first order. */
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TEST_COMPARE_STRING (result.err.buffer,
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"la_symbind: tst_audit25mod4_func1 1\n"
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"la_symbind: tst_audit25mod3_func1 1\n"
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"la_symbind: tst_audit25mod1_func1 1\n"
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"la_symbind: tst_audit25mod2_func1 1\n"
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"la_symbind: tst_audit25mod1_func2 1\n"
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"la_symbind: tst_audit25mod2_func2 1\n");
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const char *expected[] =
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{
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"la_symbind: tst_audit25mod4_func1 1\n",
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"la_symbind: tst_audit25mod3_func1 1\n",
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"la_symbind: tst_audit25mod1_func1 1\n",
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"la_symbind: tst_audit25mod2_func1 1\n",
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"la_symbind: tst_audit25mod1_func2 1\n",
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"la_symbind: tst_audit25mod2_func2 1\n",
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};
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compare_output (result.err.buffer, result.err.length,
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expected, array_length(expected));
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support_capture_subprocess_free (&result);
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}
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