6d760a0197
When backtrace_vector_release is called with vec.size == 0, it releases the memory pointed at by vec.base. Set vec.base set to NULL if vec.size == 0 to ensure we don't point to released memory. Bootstrapped and reg-tested on x86_64. 2018-11-27 Tom de Vries <tdevries@suse.de> * mmap.c (backtrace_vector_release): Same. * unittest.c (test1): Add check. From-SVN: r266505
93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/* unittest.c -- Test for libbacktrace library
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Copyright (C) 2018 Free Software Foundation, Inc.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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(1) Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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(2) Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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(3) The name of the author may not be used to
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endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE. */
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#include <assert.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 "filenames.h"
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#include "backtrace.h"
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#include "backtrace-supported.h"
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#include "testlib.h"
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#include "internal.h"
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static unsigned count;
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static void
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error_callback (void *vdata ATTRIBUTE_UNUSED, const char *msg ATTRIBUTE_UNUSED,
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int errnum ATTRIBUTE_UNUSED)
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{
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++count;
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}
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static int
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test1 (void)
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{
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int res;
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int failed;
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struct backtrace_vector vec;
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memset (&vec, 0, sizeof vec);
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backtrace_vector_grow (state, 100, error_callback, NULL, &vec);
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vec.alc += vec.size;
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vec.size = 0;
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count = 0;
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res = backtrace_vector_release (state, &vec, error_callback, NULL);
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failed = res != 1 || count != 0 || vec.base != NULL;
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printf ("%s: unittest backtrace_vector_release size == 0\n",
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failed ? "FAIL": "PASS");
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if (failed)
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++failures;
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return failures;
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}
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int
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main (int argc ATTRIBUTE_UNUSED, char **argv)
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{
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state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS,
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error_callback_create, NULL);
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test1 ();
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exit (failures ? EXIT_FAILURE : EXIT_SUCCESS);
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}
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