perf annotate: Move the default annotate options to the library

One more thing that goes from the TUI code to be used more widely,
for instance it'll affect the default options used by:

  perf annotate --stdio2

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-0nsz0dm0akdbo30vgja2a10e@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 62 insertions, 0 deletions

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 98cf3e5380bc..cfa641bc1df6 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -14,6 +14,7 @@
 #include "sort.h"
 #include "build-id.h"
 #include "color.h"
+#include "config.h"
 #include "cache.h"
 #include "symbol.h"
 #include "debug.h"
@@ -41,6 +42,11 @@
 
 #include "sane_ctype.h"
 
+struct annotation_options annotation__default_options = {
+	.use_offset     = true,
+	.jump_arrows    = true,
+};
+
 const char 	*disassembler_style;
 const char	*objdump_path;
 static regex_t	 file_lineno;
@@ -2500,3 +2506,59 @@ out_free_offsets:
 	zfree(&notes->offsets);
 	return -1;
 }
+
+#define ANNOTATION__CFG(n) \
+	{ .name = #n, .value = &annotation__default_options.n, }
+
+/*
+ * Keep the entries sorted, they are bsearch'ed
+ */
+static struct annotation_config {
+	const char *name;
+	bool *value;
+} annotation__configs[] = {
+	ANNOTATION__CFG(hide_src_code),
+	ANNOTATION__CFG(jump_arrows),
+	ANNOTATION__CFG(show_linenr),
+	ANNOTATION__CFG(show_nr_jumps),
+	ANNOTATION__CFG(show_nr_samples),
+	ANNOTATION__CFG(show_total_period),
+	ANNOTATION__CFG(use_offset),
+};
+
+#undef ANNOTATION__CFG
+
+static int annotation_config__cmp(const void *name, const void *cfgp)
+{
+	const struct annotation_config *cfg = cfgp;
+
+	return strcmp(name, cfg->name);
+}
+
+static int annotation__config(const char *var, const char *value,
+			    void *data __maybe_unused)
+{
+	struct annotation_config *cfg;
+	const char *name;
+
+	if (!strstarts(var, "annotate."))
+		return 0;
+
+	name = var + 9;
+	cfg = bsearch(name, annotation__configs, ARRAY_SIZE(annotation__configs),
+		      sizeof(struct annotation_config), annotation_config__cmp);
+
+	if (cfg == NULL)
+		pr_debug("%s variable unknown, ignoring...", var);
+	else
+		*cfg->value = perf_config_bool(name, value);
+	return 0;
+}
+
+void annotation_config__init(void)
+{
+	perf_config(annotation__config, NULL);
+
+	annotation__default_options.show_total_period = symbol_conf.show_total_period;
+	annotation__default_options.show_nr_samples   = symbol_conf.show_nr_samples;
+}