test: Add testcase for #1001

Refs: #1001
Change-Id: I3edd750108bd3f887af1f0afe3f2651f1243062b

test/issues/1001/CT_004.c

@@ -0,0 +1,101 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <fcntl.h>
+
+#include "ihklib.h"
+#include "./test_chk.h"
+
+#define TEST_NAME "CT_004"
+
+#define NUM_CNTR 4
+
+int main(int argc, char **argv)
+{
+	struct ihk_perf_event_attr attr[NUM_CNTR];
+	// for x86_64 arch
+	unsigned long configs[NUM_CNTR] = {
+		0x00c0,
+		0x4f2e,
+		0x412e,
+		0x00c5};
+	char *config_names[NUM_CNTR] = {
+		"INSTRUCTIONS",
+		"CACHE_REFERENCES",
+		"CACHE_MISSES",
+		"BRANCH_MISSES"};
+	unsigned long counts[NUM_CNTR];
+	unsigned long tmp_counts[NUM_CNTR];
+
+	int rc = 0;
+	int i = 0;
+	int chk_fail = 0;
+	int event_num;
+
+	printf("*** %s start *******************************\n", TEST_NAME);
+
+	// setup attrs
+	for (i = 0; i < NUM_CNTR; i++) {
+		attr[i].config = configs[i];
+		attr[i].exclude_kernel = 1;
+		attr[i].exclude_user = 0;
+		attr[i].disabled = 1;
+	}
+
+	// set perf_event
+	rc = ihk_os_setperfevent(0, attr, NUM_CNTR);
+	OKNG(rc < 0, "setperfevent for %d counters", NUM_CNTR);
+	event_num = rc;
+
+	// start counters at once
+	rc = ihk_os_perfctl(0, PERF_EVENT_ENABLE);
+	OKNG(rc != 0, "Start counters at once");
+
+	// monitoring target
+	printf("  do some processing...\n");
+	system("bash ./processing.sh > /dev/null");
+
+	// stop counters at once
+	rc = ihk_os_perfctl(0, PERF_EVENT_DISABLE);
+	OKNG(rc != 0, "Stop counters at once");
+
+	rc = ihk_os_getperfevent(0, tmp_counts, event_num);
+	OKNG(rc != 0, "getperfevent %d counters", event_num);
+	printf("  counted values are as belows...\n");
+	// read counters after processing
+	for (i = 0; i < NUM_CNTR; i++) {
+		printf("%-16s: %ld\n", config_names[i], tmp_counts[i]);
+		counts[i] = tmp_counts[i];
+	}
+
+	printf("  processing again... (to check if counters are stopped)\n");
+	// processing again (counters are stopped)
+	system("bash ./processing.sh > /dev/null");
+
+	rc = ihk_os_getperfevent(0, tmp_counts, event_num);
+	OKNG(rc != 0, "getperfevent %d counters", event_num);
+	printf("  current values are as bellow\n"
+		"  (expected to be same value as last time)\n");
+
+	// read counters again to check if counters were stopped
+	chk_fail = 0;
+	for (i = 0; i < NUM_CNTR; i++) {
+		printf("%-16s: %ld\n", config_names[i], tmp_counts[i]);
+		if (counts[i] != tmp_counts[i]) {
+			chk_fail = 1;
+			break;
+		}
+	}
+	OKNG(chk_fail != 0, "Counters are stopped");
+
+	printf("*** %s PASSED\n\n", TEST_NAME);
+
+	return 0;
+
+fn_fail:
+	printf("*** %s FAILED\n\n", TEST_NAME);
+
+	return -1;
+}