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[RFC,v2,07/23] perf expr: debug lex if debugging yacc

Message ID 20200507140819.126960-8-irogers@google.com
State RFC
Delegated to: BPF Maintainers
Headers show
Series Share events between metrics | expand

Commit Message

Ian Rogers May 7, 2020, 2:08 p.m. UTC 
Only effects parser debugging (disabled by default). Enables displaying
'--accepting rule at line .. ("...").

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/util/expr.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c
index aa631e37ad1e..8b4ce704a68d 100644
--- a/tools/perf/util/expr.c
+++ b/tools/perf/util/expr.c
@@ -45,6 +45,7 @@  __expr__parse(double *val, struct expr_parse_ctx *ctx, const char *expr,
 
 #ifdef PARSER_DEBUG
 	expr_debug = 1;
+	expr_set_debug(1, scanner);
 #endif
 
 	ret = expr_parse(val, ctx, scanner);