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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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146edff3d7
Skip an event configuration for event names with a dash/minus in them. Events with a dash/minus in their name cause parsing issues as legacy encoding of events would use a dash/minus as a separator. The parser separates events with dashes into prefixes and suffixes and then recombines them. Unfortunately if an event has part of its name that matches a legacy token then the recombining fails. This is seen for branch-brs where branch is a legacy token. branch-brs was introduced to sysfs in: https://lore.kernel.org/all/20220322221517.2510440-5-eranian@google.com/ The failure is shown below as well as the workaround to use a config where the dash/minus isn't treated specially: ``` $ perf stat -e branch-brs true event syntax error: 'branch-brs' \___ parser error $ perf stat -e cpu/branch-brs/ true Performance counter stats for 'true': 46,179 cpu/branch-brs/ ``` Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20221013011205.3151391-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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| .. | ||
| attr | ||
| shell | ||
| .gitignore | ||
| api-io.c | ||
| attr.c | ||
| attr.py | ||
| backward-ring-buffer.c | ||
| bitmap.c | ||
| bp_account.c | ||
| bp_signal.c | ||
| bp_signal_overflow.c | ||
| bpf-script-example.c | ||
| bpf-script-test-kbuild.c | ||
| bpf-script-test-prologue.c | ||
| bpf-script-test-relocation.c | ||
| bpf.c | ||
| Build | ||
| builtin-test-list.c | ||
| builtin-test-list.h | ||
| builtin-test.c | ||
| clang.c | ||
| code-reading.c | ||
| cpumap.c | ||
| demangle-java-test.c | ||
| demangle-ocaml-test.c | ||
| dlfilter-test.c | ||
| dso-data.c | ||
| dwarf-unwind.c | ||
| event-times.c | ||
| event_update.c | ||
| evsel-roundtrip-name.c | ||
| evsel-tp-sched.c | ||
| expand-cgroup.c | ||
| expr.c | ||
| fdarray.c | ||
| genelf.c | ||
| hists_common.c | ||
| hists_common.h | ||
| hists_cumulate.c | ||
| hists_filter.c | ||
| hists_link.c | ||
| hists_output.c | ||
| is_printable_array.c | ||
| keep-tracking.c | ||
| kmod-path.c | ||
| llvm.c | ||
| llvm.h | ||
| make | ||
| maps.c | ||
| mem.c | ||
| mem2node.c | ||
| mmap-basic.c | ||
| mmap-thread-lookup.c | ||
| openat-syscall-all-cpus.c | ||
| openat-syscall-tp-fields.c | ||
| openat-syscall.c | ||
| parse-events.c | ||
| parse-metric.c | ||
| parse-no-sample-id-all.c | ||
| pe-file-parsing.c | ||
| pe-file.c | ||
| pe-file.exe | ||
| pe-file.exe.debug | ||
| perf-hooks.c | ||
| perf-record.c | ||
| perf-targz-src-pkg | ||
| perf-time-to-tsc.c | ||
| pfm.c | ||
| pmu-events.c | ||
| pmu.c | ||
| python-use.c | ||
| sample-parsing.c | ||
| sdt.c | ||
| sigtrap.c | ||
| stat.c | ||
| sw-clock.c | ||
| switch-tracking.c | ||
| task-exit.c | ||
| tests.h | ||
| thread-map.c | ||
| thread-maps-share.c | ||
| time-utils-test.c | ||
| topology.c | ||
| unit_number__scnprintf.c | ||
| vmlinux-kallsyms.c | ||
| wp.c | ||