ams: support building unit test programs on windows/linux/macos

libraries/libstratosphere/source/os/impl/os_initialize.os.linux.cpp

@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <stratosphere.hpp>
+#include "os_resource_manager.hpp"
+
+namespace ams {
+
+    void Main();
+
+    namespace init {
+
+        void InitializeDefaultAllocator();
+
+    }
+
+    /* TODO: This should probably instead be a custom init::Initialize*()? */
+    namespace fs {
+
+        void InitializeForHostTool();
+
+    }
+
+}
+
+namespace ams::os {
+
+    void SetHostArgc(int argc);
+    void SetHostArgv(char **argv);
+
+    [[gnu::constructor(101)]] void Initialize() {
+        /* Only allow os::Initialize to be called once. */
+        AMS_FUNCTION_LOCAL_STATIC_CONSTINIT(bool, s_initialized, false);
+        if (s_initialized) {
+            return;
+        }
+        s_initialized = true;
+
+        /* Initialize the global os resource manager. */
+        os::impl::ResourceManagerHolder::InitializeResourceManagerInstance();
+
+        /* Initialize virtual address memory. */
+        os::InitializeVirtualAddressMemory();
+
+        /* Ensure that the init library's allocator has been setup. */
+        init::InitializeDefaultAllocator();
+    }
+
+}
+
+extern "C" int main(int argc, char **argv) {
+    /* Ensure os library is initialized. */
+    ::ams::os::Initialize();
+
+    /* Set argc/argv. */
+    ::ams::os::SetHostArgc(argc);
+    ::ams::os::SetHostArgv(argv);
+
+    /* Ensure filesystem library is initialized. */
+    ::ams::fs::InitializeForHostTool();
+
+    /* Call main. */
+    ::ams::Main();
+
+    /* TODO: Should we try to implement a custom exit here? */
+    return 0;
+}