From f05240b666ed71ecfa0e2bfcb4b3d12010bdcd4c Mon Sep 17 00:00:00 2001
From: Christopher Haster <chaster@utexas.edu>
Date: Mon, 16 May 2016 14:27:54 -0500
Subject: [PATCH] Added attribute tests from compiler-polyfill

from https://github.com/ARMmbed/compiler-polyfill/tree/master/test/attributes
---
 hal/TESTS/api/toolchain/attributes.c | 61 ++++++++++++++++++++++++++++
 hal/TESTS/api/toolchain/main.cpp     | 43 ++++++++++++++++++++
 hal/TESTS/api/toolchain/weak.c       | 10 +++++
 3 files changed, 114 insertions(+)
 create mode 100644 hal/TESTS/api/toolchain/attributes.c
 create mode 100644 hal/TESTS/api/toolchain/main.cpp
 create mode 100644 hal/TESTS/api/toolchain/weak.c

diff --git a/hal/TESTS/api/toolchain/attributes.c b/hal/TESTS/api/toolchain/attributes.c
new file mode 100644
index 0000000000..e235477744
--- /dev/null
+++ b/hal/TESTS/api/toolchain/attributes.c
@@ -0,0 +1,61 @@
+#include "toolchain.h"
+
+#include <stdio.h>
+#include <stdint.h>
+
+
+struct TestAttrPackedStruct {
+    char a;
+    int x;
+} PACKED;
+
+int testPacked() {
+    int failed = 0;
+
+    if (sizeof(struct TestAttrPackedStruct) != sizeof(int) + sizeof(char)) {
+        failed++;
+    }
+
+    return failed;
+}
+
+
+int testUnused1(UNUSED int arg) {
+    return 0;
+}
+
+int testUnused() {
+    return testUnused1(0);
+}
+
+
+DEPRECATED("this message should not be displayed")
+void testDeprecatedUnused(); 
+void testDeprecatedUnused() { }
+
+DEPRECATED("this message should be displayed")
+int testDeprecatedUsed();
+int testDeprecatedUsed() {
+    return 0;
+}
+
+int testDeprecated() {
+    return testDeprecatedUsed();
+}
+
+
+int testWeak1();
+int testWeak2();
+
+WEAK int testWeak1() {
+    return 1;
+}
+
+int testWeak2() {
+    return 0;
+}
+
+int testWeak() {
+    return testWeak1() | testWeak2();
+}
+
diff --git a/hal/TESTS/api/toolchain/main.cpp b/hal/TESTS/api/toolchain/main.cpp
new file mode 100644
index 0000000000..40ccacb3cd
--- /dev/null
+++ b/hal/TESTS/api/toolchain/main.cpp
@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <stdint.h>
+
+#include "toolchain.h"
+#include "test_env.h"
+#include "unity.h"
+#include "utest.h"
+
+using namespace utest::v1;
+
+
+// Test functions declared as C functions to avoid issues with name mangling
+extern "C" {
+    int testPacked();
+    int testUnused();
+    int testDeprecated();
+    int testWeak();
+}
+
+
+// Test wrapper and test cases for utest
+template <int (*F)()>
+void test_wrapper() {
+    TEST_ASSERT_UNLESS(F());
+}
+
+status_t test_setup(const size_t number_of_cases) {
+    GREENTEA_SETUP(40, "default_auto");
+    return verbose_test_setup_handler(number_of_cases);
+}
+
+Case cases[] = {
+    Case("Testing PACKED attribute",     test_wrapper<testPacked>),
+    Case("Testing UNUSED attribute",     test_wrapper<testUnused>),
+    Case("Testing DEPRECATED attribute", test_wrapper<testDeprecated>),
+    Case("Testing WEAK attribute",       test_wrapper<testWeak>),
+};
+
+Specification specification(test_setup, cases);
+
+int main() {
+    return !Harness::run(specification);
+}
diff --git a/hal/TESTS/api/toolchain/weak.c b/hal/TESTS/api/toolchain/weak.c
new file mode 100644
index 0000000000..d81125573f
--- /dev/null
+++ b/hal/TESTS/api/toolchain/weak.c
@@ -0,0 +1,10 @@
+#include "toolchain.h"
+
+int testWeak1() {
+    return 0;
+}
+
+WEAK int testWeak2() {
+    return 1;
+}
+