Add cpu-target-features binary
This is a very small executable which is used to determine what CPU
target features are enabled for a given compiler toolchain. These
features are only provided through internal compiler defines, and thus
we have to do a lot of macro shenaningans to get them to display
correctly.
Bug: 354747380
Test: Built for x86_64 cuttlefish, not tested installation
Change-Id: Ic68cd365c41ddd278a856a21796e1645a82fd760
diff --git a/cpu_target_features/main.cpp b/cpu_target_features/main.cpp
new file mode 100644
index 0000000..61f3d25
--- /dev/null
+++ b/cpu_target_features/main.cpp
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+
+#include "print_target_features.inc"
+
+int main() {
+#if defined(__aarch64__)
+ printAarch64TargetFeatures();
+ return 0;
+#elif defined(__arm__)
+ printArm32TargetFeatures();
+ return 0;
+#elif defined(__x86_64__) || defined(__i386__)
+ printX86TargetFeatures();
+ return 0;
+#elif defined(__riscv)
+ printRiscvTargetFeatures();
+ return 0;
+#else
+#error Unsupported arch. This binary only supports aarch64, arm, x86, x86-64, and risc-v
+#endif
+}