perf annotate browser: Read perf config file for settings

The defaults are:

[annotate]

	hide_src_code = false
	use_offset = true
	jump_arrows = true
	show_nr_jumps = false

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-q4egci70rjgxh7bogbbfpcyf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

4 files changed, 60 insertions, 0 deletions

diff --git a/tools/perf/Documentation/perfconfig.example b/tools/perf/Documentation/perfconfig.example
index 42c6fd2ae85d..767ea2436e1c 100644
--- a/tools/perf/Documentation/perfconfig.example
+++ b/tools/perf/Documentation/perfconfig.example
@@ -19,3 +19,11 @@
 
         # Default, disable using /dev/null
         dir = /root/.debug
+
+[annotate]
+
+        # Defaults
+        hide_src_code = false
+        use_offset = true
+        jump_arrows = true
+        show_nr_jumps = false
diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index cde4d0f0ddb9..c3a769ad90c5 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -708,4 +708,6 @@ void ui_browser__init(void)
                 struct ui_browser__colorset *c = &ui_browser__colorsets[i++];
                 sltt_set_color(c->colorset, c->name, c->fg, c->bg);
         }
+
+        annotate_browser__init();
 }
diff --git a/tools/perf/ui/browser.h b/tools/perf/ui/browser.h
index dd96d8229902..af70314605e5 100644
--- a/tools/perf/ui/browser.h
+++ b/tools/perf/ui/browser.h
@@ -69,4 +69,5 @@ void ui_browser__list_head_seek(struct ui_browser *self, off_t offset, int whenc
 unsigned int ui_browser__list_head_refresh(struct ui_browser *self);
 
 void ui_browser__init(void);
+void annotate_browser__init(void);
 #endif /* _PERF_UI_BROWSER_H_ */
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 02afa036dfa9..77b5b1280834 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -900,3 +900,52 @@ out_free_offsets:
         free(browser.offsets);
         return ret;
 }
+
+#define ANNOTATE_CFG(n) \
+        { .name = #n, .value = &annotate_browser__opts.n, }
+        
+/*
+ * Keep the entries sorted, they are bsearch'ed
+ */
+static struct annotate__config {
+        const char *name;
+        bool *value;
+} annotate__configs[] = {
+        ANNOTATE_CFG(hide_src_code),
+        ANNOTATE_CFG(jump_arrows),
+        ANNOTATE_CFG(show_nr_jumps),
+        ANNOTATE_CFG(use_offset),
+};
+
+#undef ANNOTATE_CFG
+
+static int annotate_config__cmp(const void *name, const void *cfgp)
+{
+        const struct annotate__config *cfg = cfgp;
+
+        return strcmp(name, cfg->name);
+}
+
+static int annotate__config(const char *var, const char *value, void *data __used)
+{
+        struct annotate__config *cfg;
+        const char *name;
+
+        if (prefixcmp(var, "annotate.") != 0)
+                return 0;
+
+        name = var + 9;
+        cfg = bsearch(name, annotate__configs, ARRAY_SIZE(annotate__configs),
+                      sizeof(struct annotate__config), annotate_config__cmp);
+
+        if (cfg == NULL)
+                return -1;
+
+        *cfg->value = perf_config_bool(name, value);
+        return 0;
+}
+
+void annotate_browser__init(void)
+{
+        perf_config(annotate__config, NULL);
+}