88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
/* Test of c-stack module.
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Copyright (C) 2002, 2004, 2006, 2008 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <config.h>
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#include "c-stack.h"
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#include "exitfail.h"
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#include <stdio.h>
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#include <stdlib.h>
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#if HAVE_SETRLIMIT
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/* At least FreeBSD 5.0 needs extra headers before <sys/resource.h>
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will compile. */
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# include <sys/types.h>
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# include <sys/time.h>
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# include <sys/resource.h>
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#endif
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#define ASSERT(expr) \
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do \
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{ \
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if (!(expr)) \
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{ \
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fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
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fflush (stderr); \
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abort (); \
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} \
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} \
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while (0)
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char *program_name;
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static volatile int *
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recurse_1 (volatile int n, volatile int *p)
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{
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if (n >= 0)
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*recurse_1 (n + 1, p) += n;
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return p;
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}
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static int
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recurse (volatile int n)
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{
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int sum = 0;
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return *recurse_1 (n, &sum);
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}
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int
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main (int argc, char **argv)
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{
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#if HAVE_SETRLIMIT && defined RLIMIT_STACK
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/* Before starting the endless recursion, try to be friendly to the
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user's machine. On some Linux 2.2.x systems, there is no stack
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limit for user processes at all. We don't want to kill such
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systems. */
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struct rlimit rl;
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rl.rlim_cur = rl.rlim_max = 0x100000; /* 1 MB */
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setrlimit (RLIMIT_STACK, &rl);
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#endif
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program_name = argv[0];
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if (c_stack_action (0) == 0)
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{
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if (1 < argc)
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{
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exit_failure = 77;
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++*argv[argc]; /* Intentionally dereference NULL. */
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}
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return recurse (0);
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}
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fputs ("skipping test: ", stderr);
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perror ("c_stack_action");
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return 77;
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}
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