6.6-stable review patch. If anyone has any objections, please let me know.
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From: James Clark james.clark@arm.com
[ Upstream commit a1ebf7718ee31501d2d2ee3af1716e0084c81926 ]
Test that the new expression builtin returns a match when the current escaped CPU ID is given, and that it doesn't match when "0x0" is given.
The CPU ID in test__expr() has to be changed to perf_pmu__getcpuid() which returns the CPU ID string, rather than the raw CPU ID that get_cpuid() returns because that can't be used with strcmp_cpuid_str(). It doesn't affect the is_intel test because both versions contain "Intel".
Reviewed-by: Ian Rogers irogers@google.com Signed-off-by: James Clark james.clark@arm.com Cc: Adrian Hunter adrian.hunter@intel.com Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Chen Zhongjin chenzhongjin@huawei.com Cc: Eduard Zingerman eddyz87@gmail.com Cc: Haixin Yu yuhaixin.yhx@linux.alibaba.com Cc: Ingo Molnar mingo@redhat.com Cc: Jing Zhang renyu.zj@linux.alibaba.com Cc: Jiri Olsa jolsa@kernel.org Cc: John Garry john.g.garry@oracle.com Cc: Kajol Jain kjain@linux.ibm.com Cc: Kan Liang kan.liang@linux.intel.com Cc: Leo Yan leo.yan@linaro.org Cc: Liam Howlett liam.howlett@oracle.com Cc: Madhavan Srinivasan maddy@linux.ibm.com Cc: Mark Rutland mark.rutland@arm.com Cc: Mike Leach mike.leach@linaro.org Cc: Namhyung Kim namhyung@kernel.org Cc: Peter Zijlstra peterz@infradead.org Cc: Ravi Bangoria ravi.bangoria@amd.com Cc: Will Deacon will@kernel.org Cc: Yang Jihong yangjihong1@huawei.com Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230904095104.1162928-5-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Stable-dep-of: d9c5f5f94c2d ("perf pmu: Count sys and cpuid JSON events separately") Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/tests/expr.c | 31 +++++++++++++++++++++++++++---- 1 file changed, 27 insertions(+), 4 deletions(-)
diff --git a/tools/perf/tests/expr.c b/tools/perf/tests/expr.c index 81229fa4f1e96..b177d09078038 100644 --- a/tools/perf/tests/expr.c +++ b/tools/perf/tests/expr.c @@ -9,6 +9,7 @@ #include <math.h> #include <stdlib.h> #include <string.h> +#include <string2.h> #include <linux/zalloc.h>
static int test_ids_union(void) @@ -74,10 +75,13 @@ static int test__expr(struct test_suite *t __maybe_unused, int subtest __maybe_u int ret; struct expr_parse_ctx *ctx; bool is_intel = false; - char buf[128]; + char strcmp_cpuid_buf[256]; + struct perf_pmu *pmu = pmu__find_core_pmu(); + char *cpuid = perf_pmu__getcpuid(pmu); + char *escaped_cpuid1, *escaped_cpuid2;
- if (!get_cpuid(buf, sizeof(buf))) - is_intel = strstr(buf, "Intel") != NULL; + TEST_ASSERT_VAL("get_cpuid", cpuid); + is_intel = strstr(cpuid, "Intel") != NULL;
TEST_ASSERT_EQUAL("ids_union", test_ids_union(), 0);
@@ -257,9 +261,28 @@ static int test__expr(struct test_suite *t __maybe_unused, int subtest __maybe_u TEST_ASSERT_VAL("source count", hashmap__size(ctx->ids) == 1); TEST_ASSERT_VAL("source count", hashmap__find(ctx->ids, "EVENT1", &val_ptr));
+ + /* Test no cpuid match */ + ret = test(ctx, "strcmp_cpuid_str(0x0)", 0); + + /* + * Test cpuid match with current cpuid. Special chars have to be + * escaped. + */ + escaped_cpuid1 = strreplace_chars('-', cpuid, "\-"); + free(cpuid); + escaped_cpuid2 = strreplace_chars(',', escaped_cpuid1, "\,"); + free(escaped_cpuid1); + escaped_cpuid1 = strreplace_chars('=', escaped_cpuid2, "\="); + free(escaped_cpuid2); + scnprintf(strcmp_cpuid_buf, sizeof(strcmp_cpuid_buf), + "strcmp_cpuid_str(%s)", escaped_cpuid1); + free(escaped_cpuid1); + ret |= test(ctx, strcmp_cpuid_buf, 1); + /* has_event returns 1 when an event exists. */ expr__add_id_val(ctx, strdup("cycles"), 2); - ret = test(ctx, "has_event(cycles)", 1); + ret |= test(ctx, "has_event(cycles)", 1);
expr__ctx_free(ctx);