From f203b18f096bb7f1514b856a186283486dd5c20d Mon Sep 17 00:00:00 2001
From: wargio <wargio@libero.it>
Date: Fri, 5 Jan 2024 22:30:35 +0800
Subject: [PATCH] Remove hidden static in rz_analysis_cc_max_arg

---
 librz/analysis/cc.c  | 33 +++++++++++++++------------------
 librz/analysis/var.c |  8 +++++---
 2 files changed, 20 insertions(+), 21 deletions(-)

diff --git a/librz/analysis/cc.c b/librz/analysis/cc.c
index 07dd5a67b43..2e895dbc29f 100644
--- a/librz/analysis/cc.c
+++ b/librz/analysis/cc.c
@@ -26,6 +26,7 @@ RZ_API void rz_analysis_cc_del(RzAnalysis *analysis, const char *name) {
 	sdb_unset(DB, name, 0);
 	cc_sdb_unsetf(DB, "cc.%s.ret", name);
 	cc_sdb_unsetf(DB, "cc.%s.argn", name);
+	cc_sdb_unsetf(DB, "cc.%s.maxargs", name);
 	for (int i = 0; i < RZ_ANALYSIS_CC_MAXARG; i++) {
 		cc_sdb_unsetf(DB, "cc.%s.arg%d", name, i);
 	}
@@ -77,6 +78,11 @@ RZ_API bool rz_analysis_cc_set(RzAnalysis *analysis, const char *expr) {
 			n++;
 		}
 	}
+	{
+		char maxargs[256];
+		rz_strf(maxargs, "%d", n);
+		cc_sdb_setf(DB, maxargs, "cc.%s.maxargs", ccname);
+	}
 	rz_list_free(ccArgs);
 	free(e);
 	free(args);
@@ -197,27 +203,18 @@ RZ_API void rz_analysis_cc_set_error(RzAnalysis *analysis, const char *conventio
 }
 
 RZ_API int rz_analysis_cc_max_arg(RzAnalysis *analysis, const char *cc) {
-	int i = 0;
 	rz_return_val_if_fail(analysis && DB && cc, 0);
-	static void *oldDB = NULL;
-	static char *oldCC = NULL;
-	static int oldArg = 0;
-	if (oldDB == DB && !strcmp(cc, oldCC)) {
-		return oldArg;
+	char *query = rz_str_newf("cc.%s.maxargs", cc);
+	if (!query) {
+		return 0;
 	}
-	oldDB = DB;
-	free(oldCC);
-	oldCC = strdup(cc);
-	for (i = 0; i < RZ_ANALYSIS_CC_MAXARG; i++) {
-		char *query = rz_str_newf("cc.%s.arg%d", cc, i);
-		const char *res = query ? sdb_const_get(DB, query, 0) : NULL;
-		free(query);
-		if (!res) {
-			break;
-		}
+	const char *res = sdb_const_get(DB, query, 0);
+	free(query);
+	int maxargs = res ? atoi(res) : 0;
+	if (maxargs < 0 || maxargs > RZ_ANALYSIS_CC_MAXARG) {
+		return 0;
 	}
-	oldArg = i;
-	return i;
+	return maxargs;
 }
 
 RZ_API const char *rz_analysis_cc_ret(RzAnalysis *analysis, const char *convention) {
diff --git a/librz/analysis/var.c b/librz/analysis/var.c
index 753c391ca0e..a4770049557 100644
--- a/librz/analysis/var.c
+++ b/librz/analysis/var.c
@@ -779,9 +779,11 @@ RZ_API int rz_analysis_var_get_argnum(RzAnalysisVar *var) {
 	if (!reg) {
 		return -1;
 	}
-	int i;
-	int arg_max = var->fcn->cc ? rz_analysis_cc_max_arg(analysis, var->fcn->cc) : 0;
-	for (i = 0; i < arg_max; i++) {
+	int arg_max = 0;
+	if (RZ_STR_ISNOTEMPTY(var->fcn->cc)) {
+		arg_max = rz_analysis_cc_max_arg(analysis, var->fcn->cc);
+	}
+	for (int i = 0; i < arg_max; i++) {
 		const char *reg_arg = rz_analysis_cc_arg(analysis, var->fcn->cc, i);
 		if (reg_arg && !strcmp(reg->name, reg_arg)) {
 			return i;