Re: [PATCH v4 01/12] perf expr: unlimited escaped characters in a symbol

[kajoljain]

On 5/1/20 11:03 PM, Ian Rogers wrote:
> Current expression allows 2 escaped '-,=' characters. However, some
> metrics require more, for example Haswell DRAM_BW_Use.
> 
> Fixes: 26226a97724d (perf expr: Move expr lexer to flex)
> Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
> ---
>  tools/perf/util/expr.l | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/perf/util/expr.l b/tools/perf/util/expr.l
> index 74b9b59b1aa5..73db6a9ef97e 100644
> --- a/tools/perf/util/expr.l
> +++ b/tools/perf/util/expr.l
> @@ -86,7 +86,7 @@ number		[0-9]+
>  sch		[-,=]
>  spec		\\{sch}
>  sym		[0-9a-zA-Z_\.:@?]+
> -symbol		{spec}*{sym}*{spec}*{sym}*{spec}*{sym}
> +symbol		({spec}|{sym})+

Acked and Tested By: Kajol Jain <kjain@xxxxxxxxxxxxx>
>  
>  %%
>  	struct expr_scanner_ctx *sctx = expr_get_extra(yyscanner);
>