diff options
| author | Ian Rogers <irogers@google.com> | 2023-04-06 09:52:23 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-04-07 03:40:28 +0300 |
| commit | 3d88aec0d42eec26b633fb2a473e294a1125bbd7 (patch) | |
| tree | 863dfa7c6b567419ded68258bd4d774a9de733c6 /tools/perf/util/pmu.l | |
| parent | e5116f46d44b72ede59a6923829f68a8b8f84e76 (diff) | |
| download | linux-3d88aec0d42eec26b633fb2a473e294a1125bbd7.tar.xz | |
perf pmu: Make parser reentrant
By default bison uses global state for compatibility with yacc. Make
the parser reentrant so that it may be used in asynchronous and
multithreaded situations.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Gaosheng Cui <cuigaosheng1@huawei.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Leo Yan <leo.yan@linaro.org>
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: Rob Herring <robh@kernel.org>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230406065224.2553640-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/pmu.l')
| -rw-r--r-- | tools/perf/util/pmu.l | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/tools/perf/util/pmu.l b/tools/perf/util/pmu.l index 58b4926cfaca..67b247be693b 100644 --- a/tools/perf/util/pmu.l +++ b/tools/perf/util/pmu.l @@ -1,4 +1,6 @@ %option prefix="perf_pmu_" +%option reentrant +%option bison-bridge %{ #include <stdlib.h> @@ -6,16 +8,21 @@ #include "pmu.h" #include "pmu-bison.h" -static int value(int base) +char *perf_pmu_get_text(yyscan_t yyscanner); +YYSTYPE *perf_pmu_get_lval(yyscan_t yyscanner); + +static int value(yyscan_t scanner, int base) { + YYSTYPE *yylval = perf_pmu_get_lval(scanner); + char *text = perf_pmu_get_text(scanner); long num; errno = 0; - num = strtoul(perf_pmu_text, NULL, base); + num = strtoul(text, NULL, base); if (errno) return PP_ERROR; - perf_pmu_lval.num = num; + yylval->num = num; return PP_VALUE; } @@ -25,7 +32,7 @@ num_dec [0-9]+ %% -{num_dec} { return value(10); } +{num_dec} { return value(yyscanner, 10); } config { return PP_CONFIG; } - { return '-'; } : { return ':'; } @@ -35,7 +42,7 @@ config { return PP_CONFIG; } %% -int perf_pmu_wrap(void) +int perf_pmu_wrap(void *scanner __maybe_unused) { return 1; } |