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- /* allocfail.c -- Test for libbacktrace library
- Copyright (C) 2018-2022 Free Software Foundation, Inc.
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are
- met:
- (1) Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- (2) Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in
- the documentation and/or other materials provided with the
- distribution.
- (3) The name of the author may not be used to
- endorse or promote products derived from this software without
- specific prior written permission.
- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
- INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- POSSIBILITY OF SUCH DAMAGE. */
- #include <assert.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <unistd.h>
- #include "filenames.h"
- #include "backtrace.h"
- #include "backtrace-supported.h"
- #include "testlib.h"
- extern uint64_t get_nr_allocs (void);
- extern void set_fail_at_alloc (uint64_t);
- extern int at_fail_alloc_p (void);
- static int test1 (void) __attribute__ ((noinline, unused));
- static int f2 (int) __attribute__ ((noinline));
- static int f3 (int, int) __attribute__ ((noinline));
- static unsigned callback_errors = 0;
- static void
- error_callback_full (void *vdata ATTRIBUTE_UNUSED,
- const char *msg ATTRIBUTE_UNUSED,
- int errnum ATTRIBUTE_UNUSED)
- {
- if (at_fail_alloc_p ())
- {
- set_fail_at_alloc (0);
- return;
- }
- callback_errors++;
- }
- static int
- callback_full (void *vdata ATTRIBUTE_UNUSED, uintptr_t pc ATTRIBUTE_UNUSED,
- const char *filename ATTRIBUTE_UNUSED,
- int lineno ATTRIBUTE_UNUSED,
- const char *function ATTRIBUTE_UNUSED)
- {
- return 0;
- }
- static int
- test1 (void)
- {
- return f2 (__LINE__) + 1;
- }
- static int
- f2 (int f1line)
- {
- return f3 (f1line, __LINE__) + 2;
- }
- static int
- f3 (int f1line ATTRIBUTE_UNUSED, int f2line ATTRIBUTE_UNUSED)
- {
- int i;
- i = backtrace_full (state, 0, callback_full, error_callback_full, NULL);
- if (i != 0)
- {
- fprintf (stderr, "test1: unexpected return value %d\n", i);
- ++failures;
- }
- if (callback_errors)
- ++failures;
- return failures;
- }
- /* Run all the tests. */
- int
- main (int argc, char **argv)
- {
- uint64_t fail_at = 0;
- if (argc == 2)
- {
- fail_at = atoi (argv[1]);
- set_fail_at_alloc (fail_at);
- }
- state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS,
- error_callback_full, NULL);
- if (state == NULL)
- exit (failures ? EXIT_FAILURE : EXIT_SUCCESS);
- #if BACKTRACE_SUPPORTED
- test1 ();
- #endif
- if (argc == 1)
- fprintf (stderr, "%llu\n", (long long unsigned) get_nr_allocs ());
- exit (failures ? EXIT_FAILURE : EXIT_SUCCESS);
- }
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