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perf scripting python: Allow for max_stack greater than PERF_MAX_STACK_DEPTH 

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>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1443186956-18718-20-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2015-09-25 16:15:50 +03:00 committed by Arnaldo Carvalho de Melo
parent 03cd1fed2b
commit 44cbe7295c
3 changed files with 4 additions and 2 deletions
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2
tools/perf/builtin-script.c
View File

@ -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,

2
tools/perf/util/scripting-engines/trace-event-python.c
View File

@ -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;
}

2
tools/perf/util/trace-event.h
View File

@ -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);