1 files changed, 107 insertions, 0 deletions
diff --git a/tools/gcc-plugins/format-test.c b/tools/gcc-plugins/format-test.c
new file mode 100644
index 0000000000..b031ca5ece
--- /dev/null
+++ b/tools/gcc-plugins/format-test.c
@@ -0,0 +1,107 @@
+#include <stddef.h>
+#include <stdlib.h>
+#include <netinet/in.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+typedef unsigned long mytype;
+typedef size_t mysize;
+
+typedef unsigned int not_in_addr_t;
+typedef in_addr_t yes_in_addr_t;
+typedef struct in_addr in_addr_s;
+
+struct other {
+	int x;
+};
+
+int testfn(const char *fmt, ...) __attribute__((frr_format("frr_printf", 1, 2)));
+
+#ifndef _FRR_ATTRIBUTE_PRINTFRR
+#error please load the frr-format plugin
+#endif
+
+#pragma FRR printfrr_ext "%pI4" (struct in_addr *)
+#pragma FRR printfrr_ext "%pI4" (in_addr_t *)
+
+int test(unsigned long long ay)
+{
+	size_t v_size_t = 0;
+	long v_long = 0;
+	int v_int = 0;
+	uint64_t v_uint64_t = 0;
+	mytype v_mytype = 0;
+	mysize v_mysize = 0;
+	pid_t v_pid_t = 0;
+
+	testfn("%zu", v_size_t);		// NOWARN
+	testfn("%zu", v_long);			// WARN
+	testfn("%zu", v_int);			// WARN
+	testfn("%zu", sizeof(v_int));		// NOWARN
+	testfn("%zu", v_mytype);		// WARN
+	testfn("%zu", v_mysize);		// NOWARN
+	testfn("%zu", v_uint64_t);		// WARN
+	testfn("%zu", v_pid_t);			// WARN
+
+	testfn("%lu", v_long);			// NOWARN PEDANTIC
+	testfn("%lu", v_int);			// WARN
+	testfn("%lu", v_size_t);		// WARN
+	testfn("%lu", sizeof(v_int));		// NOWARN (integer constant)
+	testfn("%lu", v_uint64_t);		// WARN
+	testfn("%lu", v_pid_t);			// WARN
+
+	testfn("%ld", v_long);			// NOWARN
+	testfn("%ld", v_int);			// WARN
+	testfn("%ld", v_size_t);		// WARN
+	testfn("%ld", sizeof(v_int));		// NOWARN (integer constant)
+	testfn("%ld", v_uint64_t);		// WARN
+	testfn("%ld", v_pid_t);			// WARN
+
+	testfn("%d",  v_int);			// NOWARN
+	testfn("%d",  v_long);			// WARN
+	testfn("%d",  v_size_t);		// WARN
+	testfn("%d",  sizeof(v_int));		// WARN
+	testfn("%d",  v_uint64_t);		// WARN
+	testfn("%d",  v_pid_t);			// WARN
+
+	testfn("%Lu", v_size_t);		// WARN
+	testfn("%Lu", v_long);			// WARN
+	testfn("%Lu", v_int);			// WARN
+	testfn("%Lu", sizeof(v_int));		// NOWARN (integer constant)
+	testfn("%Lu", v_mytype);		// WARN
+	testfn("%Lu", v_mysize);		// WARN
+	testfn("%Lu", v_pid_t);			// WARN
+	testfn("%Lu", v_uint64_t);		// NOWARN
+
+	testfn("%Ld", v_size_t);		// WARN
+	testfn("%Ld", v_long);			// WARN
+	testfn("%Ld", v_int);			// WARN
+	testfn("%Ld", sizeof(v_int));		// NOWARN (integer constant)
+	testfn("%Ld", v_mytype);		// WARN
+	testfn("%Ld", v_mysize);		// WARN
+	testfn("%Ld", v_pid_t);			// WARN
+	testfn("%Ld", v_uint64_t);		// NOWARN
+
+	testfn("%pI4", &v_long);		// WARN
+
+	in_addr_t v_in_addr_t;
+	yes_in_addr_t v_yes_in_addr_t;
+	not_in_addr_t v_not_in_addr_t;
+	void *v_voidp = &v_in_addr_t;
+
+	testfn("%pI4", &v_in_addr_t);		// NOWARN
+	testfn("%pI4", &v_yes_in_addr_t);	// NOWARN
+	testfn("%pI4", &v_not_in_addr_t);	// WARN
+	testfn("%pI4", v_voidp);		// WARN
+
+	struct in_addr v_in_addr;
+	in_addr_s v_in_addr_s;
+	struct other v_other;
+	const struct in_addr *v_in_addr_const = &v_in_addr;
+
+	testfn("%pI4", &v_in_addr);		// NOWARN
+	testfn("%pI4", &v_in_addr_s);		// NOWARN
+	testfn("%pI4", &v_other);		// WARN
+	testfn("%pI4", v_in_addr_const);	// NOWARN
+	return 0;
+}