perf jevents: Handle events including .c and .o

[cascardo/linux.git] / tools / perf / util / parse-events.l

diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 7a25194..660fca0 100644 (file)
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -53,6 +53,26 @@ static int str(yyscan_t scanner, int token)
        return token;
 }
 
+/*
+ * This function is called when the parser gets two kind of input:
+ *
+ *     @cfg1 or @cfg2=config
+ *
+ * The leading '@' is stripped off before 'cfg1' and 'cfg2=config' are given to
+ * bison.  In the latter case it is necessary to keep the string intact so that
+ * the PMU kernel driver can determine what configurable is associated to
+ * 'config'.
+ */
+static int drv_str(yyscan_t scanner, int token)
+{
+       YYSTYPE *yylval = parse_events_get_lval(scanner);
+       char *text = parse_events_get_text(scanner);
+
+       /* Strip off the '@' */
+       yylval->str = strdup(text + 1);
+       return token;
+}
+
 #define REWIND(__alloc)                                \
 do {                                                           \
        YYSTYPE *__yylval = parse_events_get_lval(yyscanner);   \
@@ -116,14 +136,15 @@ do {                                                      \
 group          [^,{}/]*[{][^}]*[}][^,{}/]*
 event_pmu      [^,{}/]+[/][^/]*[/][^,{}/]*
 event          [^,{}/]+
-bpf_object     .*\.(o|bpf)
-bpf_source     .*\.c
+bpf_object     [^,{}]+\.(o|bpf)
+bpf_source     [^,{}]+\.c
 
 num_dec                [0-9]+
 num_hex                0x[a-fA-F0-9]+
 num_raw_hex    [a-fA-F0-9]+
 name           [a-zA-Z_*?][a-zA-Z0-9_*?.]*
 name_minus     [a-zA-Z_*?][a-zA-Z0-9\-_*?.:]*
+drv_cfg_term   [a-zA-Z0-9_\.]+(=[a-zA-Z0-9_*?\.:]+)?
 /* If you add a modifier you need to update check_modifier() */
 modifier_event [ukhpPGHSDI]+
 modifier_bp    [rwx]{1,3}
@@ -209,6 +230,7 @@ no-overwrite                { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOOVERWRITE); }
 {name_minus}           { return str(yyscanner, PE_NAME); }
 \[all\]                        { return PE_ARRAY_ALL; }
 "["                    { BEGIN(array); return '['; }
+@{drv_cfg_term}                { return drv_str(yyscanner, PE_DRV_CFG_TERM); }
 }
 
 <mem>{