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Subject[PATCH 19/25] perf scripting python: Allow for max_stack greater than PERF_MAX_STACK_DEPTH
Date
Use the scripting_max_stack value to allow for values greater than
PERF_MAX_STACK_DEPTH.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
tools/perf/builtin-script.c | 2 +-
tools/perf/util/scripting-engines/trace-event-python.c | 2 +-
tools/perf/util/trace-event.h | 2 ++
3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index a65b498df097..5c3c02d5af53 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -33,7 +33,7 @@ static bool nanosecs;
static const char *cpu_list;
static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);

-static unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH;
+unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH;

enum perf_output_field {
PERF_OUTPUT_COMM = 1U << 0,
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index aa9e1257c1ee..a8e825fca42a 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -319,7 +319,7 @@ static PyObject *python_process_callchain(struct perf_sample *sample,

if (thread__resolve_callchain(al->thread, evsel,
sample, NULL, NULL,
- PERF_MAX_STACK_DEPTH) != 0) {
+ scripting_max_stack) != 0) {
pr_err("Failed to resolve callchain. Skipping\n");
goto exit;
}
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index da6cc4cc2a4f..b85ee55cca0c 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -78,6 +78,8 @@ struct scripting_ops {
int (*generate_script) (struct pevent *pevent, const char *outfile);
};

+extern unsigned int scripting_max_stack;
+
int script_spec_register(const char *spec, struct scripting_ops *ops);

void setup_perl_scripting(void);
--
1.9.1


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