1 files changed, 15 insertions, 104 deletions

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 320b198b54dd..44c6f3d55ce7 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -624,145 +624,56 @@ error:
 	return ret;
 }
 
-#ifdef HAVE_DWARF_UNWIND_SUPPORT
-static int get_stack_size(char *str, unsigned long *_size)
-{
-	char *endptr;
-	unsigned long size;
-	unsigned long max_size = round_down(USHRT_MAX, sizeof(u64));
-
-	size = strtoul(str, &endptr, 0);
-
-	do {
-		if (*endptr)
-			break;
-
-		size = round_up(size, sizeof(u64));
-		if (!size || size > max_size)
-			break;
-
-		*_size = size;
-		return 0;
-
-	} while (0);
-
-	pr_err("callchain: Incorrect stack dump size (max %ld): %s\n",
-	       max_size, str);
-	return -1;
-}
-#endif /* HAVE_DWARF_UNWIND_SUPPORT */
-
-int record_parse_callchain(const char *arg, struct record_opts *opts)
-{
-	char *tok, *name, *saveptr = NULL;
-	char *buf;
-	int ret = -1;
-
-	/* We need buffer that we know we can write to. */
-	buf = malloc(strlen(arg) + 1);
-	if (!buf)
-		return -ENOMEM;
-
-	strcpy(buf, arg);
-
-	tok = strtok_r((char *)buf, ",", &saveptr);
-	name = tok ? : (char *)buf;
-
-	do {
-		/* Framepointer style */
-		if (!strncmp(name, "fp", sizeof("fp"))) {
-			if (!strtok_r(NULL, ",", &saveptr)) {
-				opts->call_graph = CALLCHAIN_FP;
-				ret = 0;
-			} else
-				pr_err("callchain: No more arguments "
-				       "needed for -g fp\n");
-			break;
-
-#ifdef HAVE_DWARF_UNWIND_SUPPORT
-		/* Dwarf style */
-		} else if (!strncmp(name, "dwarf", sizeof("dwarf"))) {
-			const unsigned long default_stack_dump_size = 8192;
-
-			ret = 0;
-			opts->call_graph = CALLCHAIN_DWARF;
-			opts->stack_dump_size = default_stack_dump_size;
-
-			tok = strtok_r(NULL, ",", &saveptr);
-			if (tok) {
-				unsigned long size = 0;
-
-				ret = get_stack_size(tok, &size);
-				opts->stack_dump_size = size;
-			}
-#endif /* HAVE_DWARF_UNWIND_SUPPORT */
-		} else {
-			pr_err("callchain: Unknown --call-graph option "
-			       "value: %s\n", arg);
-			break;
-		}
-
-	} while (0);
-
-	free(buf);
-	return ret;
-}
-
-static void callchain_debug(struct record_opts *opts)
+static void callchain_debug(void)
 {
 	static const char *str[CALLCHAIN_MAX] = { "NONE", "FP", "DWARF" };
 
-	pr_debug("callchain: type %s\n", str[opts->call_graph]);
+	pr_debug("callchain: type %s\n", str[callchain_param.record_mode]);
 
-	if (opts->call_graph == CALLCHAIN_DWARF)
+	if (callchain_param.record_mode == CALLCHAIN_DWARF)
 		pr_debug("callchain: stack dump size %d\n",
-			 opts->stack_dump_size);
+			 callchain_param.dump_size);
 }
 
-int record_parse_callchain_opt(const struct option *opt,
+int record_parse_callchain_opt(const struct option *opt __maybe_unused,
 			       const char *arg,
 			       int unset)
 {
-	struct record_opts *opts = opt->value;
 	int ret;
 
-	opts->call_graph_enabled = !unset;
+	callchain_param.enabled = !unset;
 
 	/* --no-call-graph */
 	if (unset) {
-		opts->call_graph = CALLCHAIN_NONE;
+		callchain_param.record_mode = CALLCHAIN_NONE;
 		pr_debug("callchain: disabled\n");
 		return 0;
 	}
 
-	ret = record_parse_callchain(arg, opts);
+	ret = parse_callchain_record_opt(arg);
 	if (!ret)
-		callchain_debug(opts);
+		callchain_debug();
 
 	return ret;
 }
 
-int record_callchain_opt(const struct option *opt,
+int record_callchain_opt(const struct option *opt __maybe_unused,
 			 const char *arg __maybe_unused,
 			 int unset __maybe_unused)
 {
-	struct record_opts *opts = opt->value;
+	callchain_param.enabled = true;
 
-	opts->call_graph_enabled = !unset;
+	if (callchain_param.record_mode == CALLCHAIN_NONE)
+		callchain_param.record_mode = CALLCHAIN_FP;
 
-	if (opts->call_graph == CALLCHAIN_NONE)
-		opts->call_graph = CALLCHAIN_FP;
-
-	callchain_debug(opts);
+	callchain_debug();
 	return 0;
 }
 
 static int perf_record_config(const char *var, const char *value, void *cb)
 {
-	struct record *rec = cb;
-
 	if (!strcmp(var, "record.call-graph"))
-		return record_parse_callchain(value, &rec->opts);
+		var = "call-graph.record-mode"; /* fall-through */
 
 	return perf_default_config(var, value, cb);
 }