fix: static function returning pointer type being marked as global

1 files changed, 48 insertions, 0 deletions

diff --git a/tests/static_linkage.sh b/tests/static_linkage.sh
new file mode 100644
index 0000000..de6120f
--- /dev/null
+++ b/tests/static_linkage.sh
@@ -0,0 +1,48 @@
+cat > main.c <<'EOF'
+int f1() { return 0; }
+int* f2() { return 0; }
+int** f3() { return 0; }
+
+static int f4() { return 0; }
+static int* f5() { return 0; }
+static int** f6() { return 0; }
+
+char* f7() { return 0; }
+static char* f8() { return 0; }
+
+void** f9() { return 0; }
+static void** f10() { return 0; }
+
+int main() { }
+EOF
+
+"$ducc" -o main.s main.c
+
+function assert_global() {
+    local func=$1
+    if ! grep -q "\.globl $func\$" main.s; then
+        echo "expected .globl for non-static function: $func" >&2
+        exit 1
+    fi
+}
+
+function assert_local() {
+    local func=$1
+    if grep -q "\.globl $func\$" main.s; then
+        echo "unexpected .globl for static function: $func" >&2
+        exit 1
+    fi
+}
+
+assert_global f1
+assert_global f2
+assert_global f3
+assert_global f7
+assert_global f9
+assert_global main
+
+assert_local f4
+assert_local f5
+assert_local f6
+assert_local f8
+assert_local f10