core: add 8 threads to coredump, to make things more interesting

2 files changed, 21 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 6fe65ea..62df572 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-CFLAGS=-Wextra -Wall -O0 -g -D_GNU_SOURCE
+CFLAGS=-Wextra -Wall -O0 -g -D_GNU_SOURCE -pthread
 
 all: segfault generate core
 
diff --git a/segfault.c b/segfault.c
index e0e759c..025cfa6 100644
--- a/segfault.c
+++ b/segfault.c
@@ -6,11 +6,31 @@
 #include <unistd.h>
 #include <stdlib.h>
 #include <limits.h>
+#include <pthread.h>
+#include <string.h>
+
+static void *hang(void *arg) {
+        pause();
+        return NULL;
+}
 
 int main(int argc, char *argv[]) {
         int *p = 0;
         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");