perf script: Add a setting for maximum stack depth
Add a setting for maximum stack depth in preparation for allowing for
synthesized callchains.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1443186956-18718-19-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 0928439..a65b498 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -33,6 +33,8 @@
static const char *cpu_list;
static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
+static unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH;
+
enum perf_output_field {
PERF_OUTPUT_COMM = 1U << 0,
PERF_OUTPUT_TID = 1U << 1,
@@ -475,7 +477,7 @@
}
}
perf_evsel__print_ip(evsel, sample, al, print_opts,
- PERF_MAX_STACK_DEPTH);
+ scripting_max_stack);
}
/* print branch_to information */
@@ -552,7 +554,7 @@
perf_evsel__print_ip(evsel, sample, al,
output[attr->type].print_ip_opts,
- PERF_MAX_STACK_DEPTH);
+ scripting_max_stack);
}
if (PRINT_FIELD(IREGS))