16 #define WP_TEST_ASSERT_VAL(fd, text, val)       \  argument
19 	wp_read(fd, &count, sizeof(long long)); \
27 static int wp_read(int fd, long long *count, int size)  in wp_read()  argument
29 	int ret = read(fd, count, size);  in wp_read()
56 	int fd;  in __event()  local
60 	fd = sys_perf_event_open(&attr, 0, -1, -1,  in __event()
62 	if (fd < 0) {  in __event()
63 		fd = -errno;  in __event()
67 	return fd;  in __event()
77 	int fd;  in test__wp_ro()
80 	fd = __event(HW_BREAKPOINT_R, (void *)&data1, sizeof(data1));  in test__wp_ro()
81 	if (fd < 0)  in test__wp_ro()
82 		return fd == -ENODEV ? TEST_SKIP : -1;  in test__wp_ro()
85 	WP_TEST_ASSERT_VAL(fd, "RO watchpoint", 1);  in test__wp_ro()
88 	WP_TEST_ASSERT_VAL(fd, "RO watchpoint", 1);  in test__wp_ro()
90 	close(fd);  in test__wp_ro()
101 	int fd;  in test__wp_wo()
104 	fd = __event(HW_BREAKPOINT_W, (void *)&data1, sizeof(data1));  in test__wp_wo()
105 	if (fd < 0)  in test__wp_wo()
106 		return fd == -ENODEV ? TEST_SKIP : -1;  in test__wp_wo()
109 	WP_TEST_ASSERT_VAL(fd, "WO watchpoint", 0);  in test__wp_wo()
112 	WP_TEST_ASSERT_VAL(fd, "WO watchpoint", 1);  in test__wp_wo()
114 	close(fd);  in test__wp_wo()
125 	int fd;  in test__wp_rw()
128 	fd = __event(HW_BREAKPOINT_R | HW_BREAKPOINT_W, (void *)&data1,  in test__wp_rw()
130 	if (fd < 0)  in test__wp_rw()
131 		return fd == -ENODEV ? TEST_SKIP : -1;  in test__wp_rw()
134 	WP_TEST_ASSERT_VAL(fd, "RW watchpoint", 1);  in test__wp_rw()
137 	WP_TEST_ASSERT_VAL(fd, "RW watchpoint", 2);  in test__wp_rw()
139 	close(fd);  in test__wp_rw()
149 	int fd, ret;  in test__wp_modify()
153 	fd = __event(HW_BREAKPOINT_W, (void *)&data1, sizeof(data1));  in test__wp_modify()
154 	if (fd < 0)  in test__wp_modify()
155 		return fd == -ENODEV ? TEST_SKIP : -1;  in test__wp_modify()
158 	WP_TEST_ASSERT_VAL(fd, "Modify watchpoint", 1);  in test__wp_modify()
164 	ret = ioctl(fd, PERF_EVENT_IOC_MODIFY_ATTRIBUTES, &new_attr);  in test__wp_modify()
172 		close(fd);  in test__wp_modify()
177 	WP_TEST_ASSERT_VAL(fd, "Modify watchpoint", 1);  in test__wp_modify()
180 	ioctl(fd, PERF_EVENT_IOC_ENABLE, 0);  in test__wp_modify()
183 		close(fd);  in test__wp_modify()
188 	WP_TEST_ASSERT_VAL(fd, "Modify watchpoint", 2);  in test__wp_modify()
191 	WP_TEST_ASSERT_VAL(fd, "Modify watchpoint", 2);  in test__wp_modify()
193 	close(fd);  in test__wp_modify()