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perf test: Convert watch point tests to test cases.

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Use null terminated array of test cases rather than the previous sub
test functions.

Committer notes:

On s/390x we don't use __event(), so wrap it with __s390x__

Signed-off-by: Ian Rogers <[email protected]>
Tested-by: Sohaib Mohamed <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Brendan Higgins <[email protected]>
Cc: Daniel Latypov <[email protected]>
Cc: David Gow <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: John Garry <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Clarke <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Ian Rogers authored and Arnaldo Carvalho de Melo committed 2021-11-13 18:11:10 -03:00
1 parent 2a74fe8283
commit e47c6ecaae
1 file changed
+32 -98
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tools/perf/tests/wp.c
+32 -98
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@@ -48,6 +48,7 @@ static void get__perf_event_attr(struct perf_event_attr *attr, int wp_type,
attr->exclude_hv = 1;
}
#ifndef __s390x__
static int __event(int wp_type, void *wp_addr, unsigned long wp_len)
{
int fd;
@@ -61,9 +62,14 @@ static int __event(int wp_type, void *wp_addr, unsigned long wp_len)
return fd;
}
#endif
static int wp_ro_test(void)
static int test__wp_ro(struct test_suite *test __maybe_unused,
int subtest __maybe_unused)
{
#if defined(__s390x__) || defined(__x86_64__) || defined(__i386__)
return TEST_SKIP;
#else
int fd;
unsigned long tmp, tmp1 = rand();
@@ -79,10 +85,15 @@ static int wp_ro_test(void)
close(fd);
return 0;
#endif
}
static int wp_wo_test(void)
static int test__wp_wo(struct test_suite *test __maybe_unused,
int subtest __maybe_unused)
{
#if defined(__s390x__)
return TEST_SKIP;
#else
int fd;
unsigned long tmp, tmp1 = rand();
@@ -98,10 +109,15 @@ static int wp_wo_test(void)
close(fd);
return 0;
#endif
}
static int wp_rw_test(void)
static int test__wp_rw(struct test_suite *test __maybe_unused,
int subtest __maybe_unused)
{
#if defined(__s390x__)
return TEST_SKIP;
#else
int fd;
unsigned long tmp, tmp1 = rand();
@@ -118,10 +134,15 @@ static int wp_rw_test(void)
close(fd);
return 0;
#endif
}
static int wp_modify_test(void)
static int test__wp_modify(struct test_suite *test __maybe_unused,
int subtest __maybe_unused)
{
#if defined(__s390x__)
return TEST_SKIP;
#else
int fd, ret;
unsigned long tmp = rand();
struct perf_event_attr new_attr;
@@ -163,105 +184,18 @@ static int wp_modify_test(void)
close(fd);
return 0;
}
static bool wp_ro_supported(void)
{
#if defined (__x86_64__) || defined (__i386__)
return false;
#else
return true;
#endif
}
static const char *wp_ro_skip_msg(void)
{
#if defined (__x86_64__) || defined (__i386__)
return "missing hardware support";
#else
return NULL;
#endif
}
static struct {
const char *desc;
int (*target_func)(void);
bool (*is_supported)(void);
const char *(*skip_msg)(void);
} wp_testcase_table[] = {
{
.desc = "Read Only Watchpoint",
.target_func = &wp_ro_test,
.is_supported = &wp_ro_supported,
.skip_msg = &wp_ro_skip_msg,
},
{
.desc = "Write Only Watchpoint",
.target_func = &wp_wo_test,
},
{
.desc = "Read / Write Watchpoint",
.target_func = &wp_rw_test,
},
{
.desc = "Modify Watchpoint",
.target_func = &wp_modify_test,
},
static struct test_case wp_tests[] = {
TEST_CASE_REASON("Read Only Watchpoint", wp_ro, "missing hardware support"),
TEST_CASE_REASON("Write Only Watchpoint", wp_wo, "missing hardware support"),
TEST_CASE_REASON("Read / Write Watchpoint", wp_rw, "missing hardware support"),
TEST_CASE_REASON("Modify Watchpoint", wp_modify, "missing hardware support"),
{ .name = NULL, }
};
static int test__wp_subtest_get_nr(void)
{
return (int)ARRAY_SIZE(wp_testcase_table);
}
static const char *test__wp_subtest_get_desc(int i)
{
if (i < 0 || i >= (int)ARRAY_SIZE(wp_testcase_table))
return NULL;
return wp_testcase_table[i].desc;
}
static const char *test__wp_subtest_skip_reason(int i)
{
if (i < 0 || i >= (int)ARRAY_SIZE(wp_testcase_table))
return NULL;
if (!wp_testcase_table[i].skip_msg)
return NULL;
return wp_testcase_table[i].skip_msg();
}
static int test__wp(struct test_suite *test __maybe_unused, int i)
{
if (i < 0 || i >= (int)ARRAY_SIZE(wp_testcase_table))
return TEST_FAIL;
if (wp_testcase_table[i].is_supported &&
!wp_testcase_table[i].is_supported())
return TEST_SKIP;
return !wp_testcase_table[i].target_func() ? TEST_OK : TEST_FAIL;
}
/* The s390 so far does not have support for
* instruction breakpoint using the perf_event_open() system call.
*/
static bool test__wp_is_supported(void)
{
#if defined(__s390x__)
return false;
#else
return true;
#endif
}
struct test_suite suite__wp = {
.desc = "Watchpoint",
.func = test__wp,
.is_supported = test__wp_is_supported,
.subtest = {
.skip_if_fail = false,
.get_nr = test__wp_subtest_get_nr,
.get_desc = test__wp_subtest_get_desc,
.skip_reason = test__wp_subtest_skip_reason,
},
.test_cases = wp_tests,
};