linux-kernel - Re: [PATCH v5 04/21] perf script: Move scripting_max

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Message-ID: <ZyPYck6mr17jS4uV@x1>
Date: Thu, 31 Oct 2024 16:20:18 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ian Rogers <irogers@...gle.com>
Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Kan Liang <kan.liang@...ux.intel.com>,
	James Clark <james.clark@...aro.org>,
	Howard Chu <howardchu95@...il.com>,
	Athira Jajeev <atrajeev@...ux.vnet.ibm.com>,
	Michael Petlan <mpetlan@...hat.com>,
	Veronika Molnarova <vmolnaro@...hat.com>,
	Dapeng Mi <dapeng1.mi@...ux.intel.com>,
	Thomas Richter <tmricht@...ux.ibm.com>,
	Ilya Leoshkevich <iii@...ux.ibm.com>,
	Colin Ian King <colin.i.king@...il.com>,
	Weilin Wang <weilin.wang@...el.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Josh Poimboeuf <jpoimboe@...hat.com>, linux-kernel@...r.kernel.org,
	linux-perf-users@...r.kernel.org
Subject: Re: [PATCH v5 04/21] perf script: Move scripting_max_stack out of
 builtin

On Wed, Oct 30, 2024 at 06:42:35PM -0700, Ian Rogers wrote:
> scripting_max_stack is used in util code which is linked into the
> python module. Move the variable declaration to
> util/trace-event-scripting.c to avoid conditional compilation.

Acked-by: Arnaldo Carvalho de Melo <acme@...hat.com>
 
> Signed-off-by: Ian Rogers <irogers@...gle.com>
> ---
>  tools/perf/builtin-script.c             | 2 --
>  tools/perf/util/python.c                | 2 --
>  tools/perf/util/trace-event-scripting.c | 3 +++
>  3 files changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
> index 6b6d4472db6e..5d5a1a06d8c6 100644
> --- a/tools/perf/builtin-script.c
> +++ b/tools/perf/builtin-script.c
> @@ -92,8 +92,6 @@ static struct dlfilter		*dlfilter;
>  static int			dlargc;
>  static char			**dlargv;
>  
> -unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH;
> -
>  enum perf_output_field {
>  	PERF_OUTPUT_COMM            = 1ULL << 0,
>  	PERF_OUTPUT_TID             = 1ULL << 1,
> diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
> index 974578a04099..298f43981fc5 100644
> --- a/tools/perf/util/python.c
> +++ b/tools/perf/util/python.c
> @@ -1306,8 +1306,6 @@ PyMODINIT_FUNC PyInit_perf(void)
>  /* The following are stubs to avoid dragging in builtin-* objects. */
>  /* TODO: move the code out of the builtin-* file into util. */
>  
> -unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH;
> -
>  bool kvm_entry_event(struct evsel *evsel __maybe_unused)
>  {
>  	return false;
> diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c
> index bd0000300c77..8abb7a7b6888 100644
> --- a/tools/perf/util/trace-event-scripting.c
> +++ b/tools/perf/util/trace-event-scripting.c
> @@ -16,9 +16,12 @@
>  #include "debug.h"
>  #include "trace-event.h"
>  #include "evsel.h"
> +#include <linux/perf_event.h>
>  #include <linux/zalloc.h>
>  #include "util/sample.h"
>  
> +unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH;
> +
>  struct scripting_context *scripting_context;
>  
>  void scripting_context__update(struct scripting_context *c,
> -- 
> 2.47.0.163.g1226f6d8fa-goog