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a9944a52c9
GCC 15 introduces allocation dead code removal (DCE) for PR117370 in r15-5255-g7828dc070510f8. This breaks various glibc tests which want to assert various properties of the allocator without doing anything obviously useful with the allocated memory. Alexander Monakov rightly pointed out that we can and should do better than passing -fno-malloc-dce to paper over the problem. Not least because GCC 14 already does such DCE where there's no testing of malloc's return value against NULL, and LLVM has such optimisations too. Handle this by providing malloc (and friends) wrappers with a volatile function pointer to obscure that we're calling malloc (et. al) from the compiler. Reviewed-by: Paul Eggert <eggert@cs.ucla.edu>
107 lines
2.9 KiB
C
107 lines
2.9 KiB
C
/* Legacy test skeleton.
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Copyright (C) 1998-2024 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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/* This test skeleton is to support running existing tests. New tests
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should use <support/test-driver.c> instead; see the documentation
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in that file for instructions, and <support/README-testing.c> for a
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minimal example. */
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/* This list of headers is needed so that tests which include
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"../test-skeleton.c" at the beginning still compile. */
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#include <assert.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <getopt.h>
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#include <paths.h>
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#include <search.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/resource.h>
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#include <sys/wait.h>
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#include <sys/param.h>
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#include <time.h>
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#include <stdint.h>
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#include <support/support.h>
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#include <support/check.h>
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#include <support/xsignal.h>
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#include <support/temp_file.h>
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/* TEST_FUNCTION is no longer used. */
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static int
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legacy_test_function (int argc __attribute__ ((unused)),
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char **argv __attribute__ ((unused)))
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{
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#ifdef TEST_FUNCTION
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return TEST_FUNCTION;
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# undef TEST_FUNCTION
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#else
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return do_test (argc, argv);
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#endif
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}
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#define TEST_FUNCTION_ARGV legacy_test_function
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/* PREPARE is a function name in the new skeleton. */
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#ifdef PREPARE
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static void
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legacy_prepare_function (int argc __attribute__ ((unused)),
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char **argv __attribute__ ((unused)))
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{
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PREPARE (argc, argv);
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}
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# undef PREPARE
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# define PREPARE legacy_prepare_function
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#endif
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/* CLEANUP_HANDLER is a function name in the new skeleton. */
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#ifdef CLEANUP_HANDLER
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static void
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legacy_cleanup_handler_function (void)
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{
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CLEANUP_HANDLER;
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}
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# undef CLEANUP_HANDLER
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# define CLEANUP_HANDLER legacy_cleanup_handler_function
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#endif
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/* CMDLINE_PROCESS is a function name in the new skeleton. */
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#ifdef CMDLINE_PROCESS
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static void
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legacy_cmdline_process_function (int c)
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{
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switch (c)
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{
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CMDLINE_PROCESS
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}
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}
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# undef CMDLINE_PROCESS
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# define CMDLINE_PROCESS legacy_cmdline_process_function
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#endif
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/* Include the new test-skeleton. */
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#include <support/test-driver.c>
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/* The following functionality is only available if <pthread.h> was
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included before this file. */
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#ifdef _PTHREAD_H
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# include <support/xthread.h>
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#endif /* _PTHREAD_H */
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