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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of libminidump.
Copyright 2012 Lennart Poettering
libminidump is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
libminidump is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with libminidump; If not, see
<http://www.gnu.org/licenses/>.
***/
#include <sys/time.h>
#include <sys/resource.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <limits.h>
#include <pthread.h>
#include <string.h>
static void *hang(void *arg) {
pause();
return NULL;
}
static void crash(void) {
int *p = 0;
*p = 1;
}
static void b(void) {
crash();
}
static void a(void) {
b();
}
int main(int argc, char *argv[]) {
struct rlimit rl;
char path[PATH_MAX];
unsigned i;
/* Create 8 threads to make things more interesting */
for (i = 0; i < 8; i++) {
pthread_t t;
int r;
r = pthread_create(&t, NULL, hang, NULL);
if (r != 0) {
fprintf(stderr, "failed to create thread: %s", strerror(r));
return EXIT_FAILURE;
}
}
if (getrlimit(RLIMIT_CORE, &rl) < 0) {
fprintf(stderr, "getrlimit() failed: %m");
return EXIT_FAILURE;
}
rl.rlim_cur = 1024UL*1024UL*1024UL;
if (setrlimit(RLIMIT_CORE, &rl) < 0) {
fprintf(stderr, "setrlimit() failed: %m");
return EXIT_FAILURE;
}
unlink("core");
snprintf(path, sizeof(path), "core.%lu", (unsigned long) getpid());
path[sizeof(path)-1] = 0;
if (symlink(path, "core") < 0) {
fprintf(stderr, "symlink() failed: %m");
return EXIT_FAILURE;
}
a();
return 0;
}
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