boot2: move to separate process

stratosphere/boot2/source/boot2_main.cpp

@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2018-2019 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 <switch.h>
+#include <atmosphere.h>
+#include <stratosphere.hpp>
+#include <stratosphere/boot2.hpp>
+
+extern "C" {
+    extern u32 __start__;
+
+    u32 __nx_applet_type = AppletType_None;
+    u32 __nx_fs_num_sessions = 1;
+    u32 __nx_fsdev_direntry_cache_size = 1;
+
+    #define INNER_HEAP_SIZE 0x2000
+    size_t nx_inner_heap_size = INNER_HEAP_SIZE;
+    char   nx_inner_heap[INNER_HEAP_SIZE];
+
+    void __libnx_initheap(void);
+    void __appInit(void);
+    void __appExit(void);
+
+    /* Exception handling. */
+    alignas(16) u8 __nx_exception_stack[0x1000];
+    u64 __nx_exception_stack_size = sizeof(__nx_exception_stack);
+    void __libnx_exception_handler(ThreadExceptionDump *ctx);
+    void __libstratosphere_exception_handler(AtmosphereFatalErrorContext *ctx);
+}
+
+sts::ncm::TitleId __stratosphere_title_id = sts::ncm::TitleId::Boot2;
+
+void __libnx_exception_handler(ThreadExceptionDump *ctx) {
+    StratosphereCrashHandler(ctx);
+}
+
+
+void __libnx_initheap(void) {
+	void*  addr = nx_inner_heap;
+	size_t size = nx_inner_heap_size;
+
+	/* Newlib */
+	extern char* fake_heap_start;
+	extern char* fake_heap_end;
+
+	fake_heap_start = (char*)addr;
+	fake_heap_end   = (char*)addr + size;
+}
+
+using namespace sts;
+
+void __appInit(void) {
+    hos::SetVersionForLibnx();
+
+    /* Initialize services we need. */
+    DoWithSmSession([&]() {
+        R_ASSERT(fsInitialize());
+        R_ASSERT(pmbmInitialize());
+        R_ASSERT(pminfoInitialize());
+        R_ASSERT(pmshellInitialize());
+        R_ASSERT(setsysInitialize());
+        R_ASSERT(gpioInitialize());
+    });
+
+    R_ASSERT(fsdevMountSdmc());
+
+    CheckAtmosphereVersion(CURRENT_ATMOSPHERE_VERSION);
+}
+
+void __appExit(void) {
+    fsdevUnmountAll();
+    gpioExit();
+    setsysExit();
+    pmshellExit();
+    pminfoExit();
+    pmbmExit();
+    fsExit();
+}
+
+int main(int argc, char **argv)
+{
+    boot2::LaunchPostSdCardBootPrograms();
+}
+