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perf record: Export record_opts based callchain parsing helper 

To be able to call it outside option parsing, like when setting a
default --call-graph parameter in 'perf trace' when just --min-stack is
used.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-xay69plylwibpb3l4isrpl1k@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2016-04-15 16:37:17 -03:00
parent 5cf9c84e21
commit 0883e820a0
2 changed files with 38 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

59
tools/perf/builtin-record.c
View File

@ -930,43 +930,48 @@ out_delete_session:
return status;
}
static void callchain_debug(void)
static void callchain_debug(struct callchain_param *callchain)
{
static const char *str[CALLCHAIN_MAX] = { "NONE", "FP", "DWARF", "LBR" };
pr_debug("callchain: type %s\n", str[callchain_param.record_mode]);
pr_debug("callchain: type %s\n", str[callchain->record_mode]);
if (callchain_param.record_mode == CALLCHAIN_DWARF)
if (callchain->record_mode == CALLCHAIN_DWARF)
pr_debug("callchain: stack dump size %d\n",
callchain_param.dump_size);
callchain->dump_size);
}
int record_opts__parse_callchain(struct record_opts *record,
struct callchain_param *callchain,
const char *arg, bool unset)
{
int ret;
record->callgraph_set = true;
callchain->enabled = !unset;
/* --no-call-graph */
if (unset) {
callchain->record_mode = CALLCHAIN_NONE;
pr_debug("callchain: disabled\n");
return 0;
}
ret = parse_callchain_record_opt(arg, callchain);
if (!ret) {
/* Enable data address sampling for DWARF unwind. */
if (callchain->record_mode == CALLCHAIN_DWARF)
record->sample_address = true;
callchain_debug(callchain);
}
return ret;
}
int record_parse_callchain_opt(const struct option *opt,
const char *arg,
int unset)
{
int ret;
struct record_opts *record = (struct record_opts *)opt->value;
record->callgraph_set = true;
callchain_param.enabled = !unset;
/* --no-call-graph */
if (unset) {
callchain_param.record_mode = CALLCHAIN_NONE;
pr_debug("callchain: disabled\n");
return 0;
}
ret = parse_callchain_record_opt(arg, &callchain_param);
if (!ret) {
/* Enable data address sampling for DWARF unwind. */
if (callchain_param.record_mode == CALLCHAIN_DWARF)
record->sample_address = true;
callchain_debug();
}
return ret;
return record_opts__parse_callchain(opt->value, &callchain_param, arg, unset);
}
int record_callchain_opt(const struct option *opt,
@ -981,7 +986,7 @@ int record_callchain_opt(const struct option *opt,
if (callchain_param.record_mode == CALLCHAIN_NONE)
callchain_param.record_mode = CALLCHAIN_FP;
callchain_debug();
callchain_debug(&callchain_param);
return 0;
}

6
tools/perf/util/callchain.h
View File

@ -212,6 +212,12 @@ struct hist_entry;
int record_parse_callchain_opt(const struct option *opt, const char *arg, int unset);
int record_callchain_opt(const struct option *opt, const char *arg, int unset);
struct record_opts;
int record_opts__parse_callchain(struct record_opts *record,
struct callchain_param *callchain,
const char *arg, bool unset);
int sample__resolve_callchain(struct perf_sample *sample,
struct callchain_cursor *cursor, struct symbol **parent,
struct perf_evsel *evsel, struct addr_location *al,