From: Kan Liang <[email protected]>

This patch extends the OPT_CALLBACK/OPT_CALLBACK_NOOPT to support 'set'
item of struct option. So the perf knows whether an option was set by
user.
The new macros are used by call-graph options.

Signed-off-by: Kan Liang <[email protected]>
---
 tools/perf/builtin-record.c     | 4 ++--
 tools/perf/perf.h               | 1 +
 tools/perf/util/parse-options.c | 2 ++
 tools/perf/util/parse-options.h | 4 ++++
 4 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 283fe96..a6eb24e 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -1018,10 +1018,10 @@ struct option __record_options[] = {
                     record__parse_mmap_pages),
        OPT_BOOLEAN(0, "group", &record.opts.group,
                    "put the counters into a counter group"),
-       OPT_CALLBACK_NOOPT('g', NULL, &record.opts,
+       OPT_CALLBACK_NOOPT_SET('g', NULL, &record.opts, 
&record.opts.callgraph_set,
                           NULL, "enables call-graph recording" ,
                           &record_callchain_opt),
-       OPT_CALLBACK(0, "call-graph", &record.opts,
+       OPT_CALLBACK_SET(0, "call-graph", &record.opts, 
&record.opts.callgraph_set,
                     "mode[,dump_size]", record_callchain_help,
                     &record_parse_callchain_opt),
        OPT_INCR('v', "verbose", &verbose,
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 937b16a..9ba02e0 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -52,6 +52,7 @@ struct record_opts {
        bool         sample_weight;
        bool         sample_time;
        bool         sample_time_set;
+       bool         callgraph_set;
        bool         period;
        bool         sample_intr_regs;
        bool         running_time;
diff --git a/tools/perf/util/parse-options.c b/tools/perf/util/parse-options.c
index 01626be..064385f 100644
--- a/tools/perf/util/parse-options.c
+++ b/tools/perf/util/parse-options.c
@@ -140,6 +140,8 @@ static int get_value(struct parse_opt_ctx_t *p,
                return err;
 
        case OPTION_CALLBACK:
+               if (opt->set)
+                       *(bool *)opt->set = true;
                if (unset)
                        return (*opt->callback)(opt, NULL, 1) ? (-1) : 0;
                if (opt->flags & PARSE_OPT_NOARG)
diff --git a/tools/perf/util/parse-options.h b/tools/perf/util/parse-options.h
index 367d8b8..2bec32e 100644
--- a/tools/perf/util/parse-options.h
+++ b/tools/perf/util/parse-options.h
@@ -132,8 +132,12 @@ struct option {
        { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), .value 
= (v), .argh = "time", .help = (h), .callback = parse_opt_approxidate_cb }
 #define OPT_CALLBACK(s, l, v, a, h, f) \
        { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), .value 
= (v), (a), .help = (h), .callback = (f) }
+#define OPT_CALLBACK_SET(s, l, v, os, a, h, f) \
+       { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), .value 
= (v), (a), .help = (h), .callback = (f), .set = check_vtype(os, bool *) }
 #define OPT_CALLBACK_NOOPT(s, l, v, a, h, f) \
        { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), .value 
= (v), (a), .help = (h), .callback = (f), .flags = PARSE_OPT_NOARG }
+#define OPT_CALLBACK_NOOPT_SET(s, l, v, os, a, h, f) \
+       { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), .value 
= (v), (a), .help = (h), .callback = (f), .flags = PARSE_OPT_NOARG, .set = 
check_vtype(os, bool *) }
 #define OPT_CALLBACK_DEFAULT(s, l, v, a, h, f, d) \
        { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), .value 
= (v), (a), .help = (h), .callback = (f), .defval = (intptr_t)d, .flags = 
PARSE_OPT_LASTARG_DEFAULT }
 #define OPT_CALLBACK_DEFAULT_NOOPT(s, l, v, a, h, f, d) \
-- 
1.8.3.1

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