kernel/tools/perf/tests/parse-events.c, branch master

perf test: Add missing newlines in debug messages

2026-01-20T20:34:51Z

These debug messages bleed into the next log line. Fix it by adding the missing newlines. Reviewed-by: Ian Rogers Signed-off-by: James Clark Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Ingo Molnar Cc: Jiri Olsa Cc: Leo Yan Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Use const for variables receiving str{str,r?chr}() returns

2025-12-17T12:30:37Z

Newer glibc versions return const char for str{str,chr}() where the haystack/s is const so to avoid warnings like these on fedora 44 change some variables to const: 36 8.17 fedora:44 : FAIL gcc version 15.2.1 20251111 (Red Hat 15.2.1-4) (GCC) libbpf.c: In function 'kallsyms_cb': libbpf.c:8489:13: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] 8489 | res = strstr(sym_name, ".llvm."); Reviewed-by: Ian Rogers Link: https://lore.kernel.org/r/20251211221756.96294-4-acme@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add support for perf_event_attr::config4

2025-11-24T20:20:06Z

perf_event_attr has gained a new field, config4, so add support for it extending the existing configN support. Reviewed-by: Leo Yan Reviewed-by: Ian Rogers Tested-by: Leo Yan Signed-off-by: James Clark Acked-by: Peter Zijlstra (Intel) Signed-off-by: Namhyung Kim

perf test parse-events: Add evsel test helper

2025-10-15T14:59:12Z

Add TEST_ASSERT_EVSEL to dump the failing evsel in the event of a failure. Signed-off-by: Ian Rogers Tested-by: James Clark Signed-off-by: Namhyung Kim

perf test parse-events: Add evlist test helper

2025-10-15T14:59:12Z

Add TEST_ASSERT_EVLIST to dump the failing evlist in the event of a failure. Add the macro to a number of tests not currently checking the evlist length. Signed-off-by: Ian Rogers Tested-by: James Clark Signed-off-by: Namhyung Kim

perf test: Clean up test_..config helpers

2025-10-15T14:59:12Z

Just have a single test_hw_config helper that strips extended type information in the case of hardware and hardware cache events. Signed-off-by: Ian Rogers Tested-by: James Clark Signed-off-by: Namhyung Kim

perf test parse-events: Remove cpu PMU requirement

2025-10-15T14:59:11Z

In the event parse string, switch "cpu" to "default_core" and then rewrite this to the first core PMU name prior to parsing. This enables testing with a PMU on hybrid x86 and other systems that don't use "cpu" for the core PMU name. The name "default_core" is already used by jevents. Update test expectations to match. Signed-off-by: Ian Rogers Tested-by: James Clark Signed-off-by: Namhyung Kim

perf test parse-events: Without a PMU use cpu-cycles rather than cycles

2025-10-15T14:59:11Z

Without a PMU perf matches an event against any PMU with the event. Unfortunately some PMU drivers advertise a "cycles" event which is typically just a core event. Switch to using "cpu-cycles" which is an indentical legacy event but avoids the multiple PMU confusion introduced by the PMU drivers. Note, on x86 cpu-cycles is also a sysfs event but cycles isn't. Signed-off-by: Ian Rogers Tested-by: James Clark Signed-off-by: Namhyung Kim

perf test parse-events: Use evsel__match for legacy events

2025-10-15T14:59:11Z

Switch from the test's assert_hw/test_config to the common evsel__match code that appropriately handles events with both legacy and sysfs/json encoding. For tests asserting that a config value matches that placed in the perf_event_attr just directly compare the config values. Signed-off-by: Ian Rogers Tested-by: James Clark Signed-off-by: Namhyung Kim

perf parse-events: Remove unused FILE input argument to scanner

2025-10-15T14:59:10Z

Now the events file isn't directly parsed from a FILE but stored in a string prior to parsing, remove the FILE argument to the associated scanner functions as they only ever pass NULL. Tested-by: Thomas Richter Signed-off-by: Ian Rogers Tested-by: James Clark Signed-off-by: Namhyung Kim