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| author | Zheng Yan <zheng.z.yan@intel.com> | 2012-06-15 14:31:39 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-06-18 12:13:24 +0200 |
| commit | ac20de6fff445d6deb0c44c25946d198f79f2f00 (patch) | |
| tree | 8d0ec729ea5b5aa8965e46370df50167506b1e61 /tools/perf/util/parse-events.y | |
| parent | 46010ab2607aed9484816a8f1679c2ec3c8e7dcf (diff) | |
| download | lwn-ac20de6fff445d6deb0c44c25946d198f79f2f00.tar.gz lwn-ac20de6fff445d6deb0c44c25946d198f79f2f00.zip | |
perf/tool: Make the event parser re-entrant
Make the event parser reentrant by creating separate
scanner for each parsing. The scanner is passed to the bison
as and argument to the lexer.
Signed-off-by: Zheng Yan <zheng.z.yan@intel.com>
[ Cleaned up the patch. ]
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1339741902-8449-11-git-send-email-zheng.z.yan@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/util/parse-events.y')
| -rw-r--r-- | tools/perf/util/parse-events.y | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y index e533bf72ba9c..2a93d5c8ccda 100644 --- a/tools/perf/util/parse-events.y +++ b/tools/perf/util/parse-events.y @@ -1,6 +1,8 @@ - +%pure-parser %name-prefix "parse_events_" %parse-param {void *_data} +%parse-param {void *scanner} +%lex-param {void* scanner} %{ @@ -11,8 +13,9 @@ #include "types.h" #include "util.h" #include "parse-events.h" +#include "parse-events-bison.h" -extern int parse_events_lex (void); +extern int parse_events_lex (YYSTYPE* lvalp, void* scanner); #define ABORT_ON(val) \ do { \ @@ -286,7 +289,7 @@ sep_slash_dc: '/' | ':' | %% -void parse_events_error(void *data __used, +void parse_events_error(void *data __used, void *scanner __used, char const *msg __used) { } |