Commit 08d2f762 authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo

perf tools: Separate 'mem:' event scanner bits

Separating 'mem:' scanner processing, so we can parse out modifier
specifically and dont clash with other rules.

This is just precaution for the future, so we dont need to worry about
the rules clashing where we need to parse out any sub-rule of global
rules.
Signed-off-by: default avatarJiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1337584373-2741-5-git-send-email-jolsa@redhat.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent b847cbdc
......@@ -787,6 +787,7 @@ int parse_events(struct perf_evlist *evlist, const char *str, int unset __used)
parse_events__flush_buffer(buffer);
parse_events__delete_buffer(buffer);
parse_events_lex_destroy();
if (!ret) {
int entries = idx - evlist->nr_entries;
......
%option prefix="parse_events_"
%option stack
%{
#include <errno.h>
......@@ -50,6 +51,8 @@ static int term(int type)
%}
%x mem
num_dec [0-9]+
num_hex 0x[a-fA-F0-9]+
num_raw_hex [a-fA-F0-9]+
......@@ -105,13 +108,12 @@ config2 { return term(PARSE_EVENTS__TERM_TYPE_CONFIG2); }
period { return term(PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
branch_type { return term(PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
mem: { return PE_PREFIX_MEM; }
mem: { BEGIN(mem); return PE_PREFIX_MEM; }
r{num_raw_hex} { return raw(); }
{num_dec} { return value(10); }
{num_hex} { return value(16); }
{modifier_event} { return str(PE_MODIFIER_EVENT); }
{modifier_bp} { return str(PE_MODIFIER_BP); }
{name} { return str(PE_NAME); }
"/" { return '/'; }
- { return '-'; }
......@@ -119,6 +121,25 @@ r{num_raw_hex} { return raw(); }
: { return ':'; }
= { return '='; }
<mem>{
{modifier_bp} { return str(PE_MODIFIER_BP); }
: { return ':'; }
{num_dec} { return value(10); }
{num_hex} { return value(16); }
/*
* We need to separate 'mem:' scanner part, in order to get specific
* modifier bits parsed out. Otherwise we would need to handle PE_NAME
* and we'd need to parse it manually. During the escape from <mem>
* state we need to put the escaping char back, so we dont miss it.
*/
. { unput(*parse_events_text); BEGIN(INITIAL); }
/*
* We destroy the scanner after reaching EOF,
* but anyway just to be sure get back to INIT state.
*/
<<EOF>> { BEGIN(INITIAL); }
}
%%
int parse_events_wrap(void)
......
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