perf: overflow test

Change-Id: Ic7aa0d99ae9a5b7d3ce4436129a360275e6937ca refs: #1358
2019-12-16 13:35:52 +09:00
parent 305511b48f
commit 1a204b6674
18 changed files with 907 additions and 0 deletions
--- a/test/perf_overflow/combination_test.c
+++ b/test/perf_overflow/combination_test.c
@ -0,0 +1,154 @@
+/* combination_test.c COPYRIGHT FUJITSU LIMITED 2019 */
+#include "combination_test.h"
+
+//
+// main
+//
+static int combination_test(struct command_set *cmd_set)
+{
+	struct perf_event_attr pe;
+	long long lest_count;
+	int ret = -1;
+	int fd;
+	int i;
+
+	ret = init_perf_event_attr(&pe);
+	if (ret < 0) {
+		fprintf(stderr,
+			"%s : Failed to init_perf_event_attr.\n",
+			__func__);
+		goto out;
+	}
+
+	fd = perf_event_open(&pe, 0, -1, -1, 0);
+	if (fd == -1) {
+		perror("pef_event_open");
+		goto out;
+	}
+
+	ret = ioctl(fd, PERF_EVENT_IOC_RESET, 0);
+	if (ret < 0) {
+		perror("ioctl(PERF_EVENT_IOC_RESET)");
+		goto out;
+	}
+
+	ret = asm_ioctl3(fd, PERF_EVENT_IOC_ENABLE, 0);
+	if (ret < 0) {
+		errno = -ret;
+		perror("asm_ioctl(PERF_EVENT_IOC_ENABLE)");
+		goto out;
+	}
+
+	nop10;
+	nop10;
+	nop10;
+	nop10;
+	for (i = 0; i < cmd_set->nr_cmds; i++) {
+		struct command *cmd = &cmd_set->cmds[i];
+
+		cmd->do_cmd(fd, cmd->args);
+		nop10;
+		nop10;
+		nop10;
+		nop10;
+	}
+	nop10;
+	nop10;
+	nop10;
+	nop10;
+
+	ret = asm_ioctl3(fd, PERF_EVENT_IOC_DISABLE, 0);
+	if (ret < 0) {
+		errno = -ret;
+		perror("asm_ioctl(PERF_EVENT_IOC_DISABLE)");
+		goto out;
+	}
+
+	for (i = 0; i < cmd_set->nr_cmds; i++) {
+		struct command *cmd = &cmd_set->cmds[i];
+
+		cmd->print(cmd->args);
+	}
+
+	ret = read(fd, &lest_count, sizeof(lest_count));
+	if (ret < 0) {
+		perror("read(lest_count)");
+		goto out;
+	}
+	printf("---------\n"
+		"sys_read: %lld\n", lest_count);
+
+	ret = 0;
+out:
+	if (fd != -1) {
+		close(fd);
+	}
+	return ret;
+}
+
+int combination_main(int argc, char **argv)
+{
+	int ret = -1;
+	int i;
+	int opt;
+	char *input_commands = NULL;
+	struct command_set cmd_set = {0};
+
+	// parse args
+	while ((opt = getopt(argc, argv, "c:")) != -1) {
+		switch (opt) {
+		case 'c':
+			input_commands = optarg;
+			break;
+		default:
+			print_usage();
+			goto out;
+		}
+	}
+	if (input_commands == NULL) {
+		fprintf(stderr,
+			"%s : combination test requires -c option.\n",
+			__func__);
+		print_usage();
+		goto out;
+	}
+
+	// build command
+	for (i = 0; i <= MAX_COMBINATION; i++) {
+		const char *cmd = strtok(input_commands, ",");
+
+		input_commands = NULL;
+		if (cmd == NULL) {
+			break;
+		}
+
+		if (i == MAX_COMBINATION) {
+			fprintf(stderr,
+				"%s : Too many arguments to option '-c'.\n",
+				__func__);
+			goto release_out;
+		}
+
+		if (build_command(cmd,  &cmd_set.cmds[i]) < 0) {
+			fprintf(stderr,
+				"%s : Incorrect command[%s].\n",
+				__func__, cmd);
+			print_usage();
+			goto release_out;
+		}
+	}
+	cmd_set.nr_cmds = i;
+
+	// run
+	ret = combination_test(&cmd_set);
+
+	// release command
+release_out:
+	for (i = 0; i < cmd_set.nr_cmds; i++) {
+		struct command *cmd = &cmd_set.cmds[i];
+
+		cmd->release(cmd);
+	}
+out:
+	return ret;
+}