coredump: Support threads

Change-Id: Id75ade6c87b15abcff5d772d90f77950376a32c1
Refs: #1219

test/issues/1219/segv_in_sub.c

@@ -0,0 +1,56 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <sys/utsname.h>
+#include <memory.h>
+#include <sys/mman.h>
+#include <sched.h>
+
+#define NUM_THREADS 5
+
+void *thread_fn_nop(void *arg)
+{
+	sleep(10);
+}
+void *thread_fn_dump(void *arg)
+{
+	int *ptr = NULL;
+
+	*ptr = 0xdead;
+}
+
+int main(void)
+{
+	pthread_t threads[NUM_THREADS];
+	int i, j;
+	int rets[NUM_THREADS];
+
+	printf("SEGV in sub thread!!\n");
+
+    /* Create threads */
+	for (i = 0; i < NUM_THREADS; i++) {
+		if (i == NUM_THREADS - 1) {
+			/* SEGV thread */
+			rets[i] = pthread_create(&threads[i], NULL,
+					thread_fn_dump, NULL);
+		} else {
+			rets[i] = pthread_create(&threads[i], NULL,
+					thread_fn_nop, NULL);
+		}
+
+		if (rets[i] != 0) {
+			printf("pthread_create: %d\n", rets[i]);
+		}
+	}
+
+	printf("pthread_create done!! Let's join!!!!\n");
+
+	for (j = 0; j < NUM_THREADS; j++) {
+		pthread_join(threads[j], NULL);
+	}
+
+	printf("All threads are done.\n");
+	exit(0);
+}
+