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-rw-r--r--tools/perf/util/expr.l15
1 files changed, 14 insertions, 1 deletions
diff --git a/tools/perf/util/expr.l b/tools/perf/util/expr.l
index bd20f33418ba..cf6e3c710502 100644
--- a/tools/perf/util/expr.l
+++ b/tools/perf/util/expr.l
@@ -6,6 +6,7 @@
#include <linux/compiler.h>
#include "expr.h"
#include "expr-bison.h"
+#include <math.h>
char *expr_get_text(yyscan_t yyscanner);
YYSTYPE *expr_get_lval(yyscan_t yyscanner);
@@ -77,6 +78,17 @@ static int str(yyscan_t scanner, int token, int runtime)
yylval->str = normalize(yylval->str, runtime);
return token;
}
+
+static int literal(yyscan_t scanner)
+{
+ YYSTYPE *yylval = expr_get_lval(scanner);
+
+ yylval->num = expr__get_literal(expr_get_text(scanner));
+ if (isnan(yylval->num))
+ return EXPR_ERROR;
+
+ return LITERAL;
+}
%}
number ([0-9]+\.?[0-9]*|[0-9]*\.?[0-9]+)
@@ -85,6 +97,7 @@ sch [-,=]
spec \\{sch}
sym [0-9a-zA-Z_\.:@?]+
symbol ({spec}|{sym})+
+literal #[0-9a-zA-Z_\.\-]+
%%
struct expr_scanner_ctx *sctx = expr_get_extra(yyscanner);
@@ -94,7 +107,7 @@ max { return MAX; }
min { return MIN; }
if { return IF; }
else { return ELSE; }
-#smt_on { return SMT_ON; }
+{literal} { return literal(yyscanner); }
{number} { return value(yyscanner); }
{symbol} { return str(yyscanner, ID, sctx->runtime); }
"|" { return '|'; }