dmnt2: add logging logic, for use with gdbstub development

stratosphere/dmnt.gen2/source/dmnt2_main.cpp

@@ -0,0 +1,156 @@
+/*
+ * Copyright (c) 2018-2020 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 "dmnt2_debug_log.hpp"
+
+extern "C" {
+    extern u32 __start__;
+
+    u32 __nx_applet_type = AppletType_None;
+    u32 __nx_fs_num_sessions = 1;
+
+    #define INNER_HEAP_SIZE 0x0
+    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);
+
+    void *__libnx_alloc(size_t size);
+    void *__libnx_aligned_alloc(size_t alignment, size_t size);
+    void __libnx_free(void *mem);
+}
+
+namespace ams {
+
+    ncm::ProgramId CurrentProgramId = ncm::SystemProgramId::DmntGen2;
+
+}
+
+using namespace ams;
+
+#define AMS_DMNT2_SERVER_USE_FATAL_ERROR 1
+
+#if AMS_DMNT2_SERVER_USE_FATAL_ERROR
+
+extern "C" {
+
+    /* Exception handling. */
+    alignas(16) u8 __nx_exception_stack[ams::os::MemoryPageSize];
+    u64 __nx_exception_stack_size = sizeof(__nx_exception_stack);
+    void __libnx_exception_handler(ThreadExceptionDump *ctx);
+
+}
+
+void __libnx_exception_handler(ThreadExceptionDump *ctx) {
+    ams::CrashHandler(ctx);
+}
+
+#endif
+
+namespace ams::dmnt {
+
+    namespace {
+
+        alignas(0x40) constinit u8 g_htcs_buffer[4_KB];
+
+    }
+
+}
+
+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;
+}
+
+void __appInit(void) {
+    hos::InitializeForStratosphere();
+
+    R_ABORT_UNLESS(sm::Initialize());
+
+    /* TODO */
+
+    ams::CheckApiVersion();
+}
+
+void __appExit(void) {
+    /* TODO */
+}
+
+namespace ams {
+
+    void *Malloc(size_t size) {
+        AMS_ABORT("ams::Malloc was called");
+    }
+
+    void Free(void *ptr) {
+        AMS_ABORT("ams::Free was called");
+    }
+
+}
+
+void *operator new(size_t size) {
+    AMS_ABORT("operator new(size_t) was called");
+}
+
+void operator delete(void *p) {
+    AMS_ABORT("operator delete(void *) was called");
+}
+
+void *__libnx_alloc(size_t size) {
+    AMS_ABORT("__libnx_alloc was called");
+}
+
+void *__libnx_aligned_alloc(size_t alignment, size_t size) {
+    AMS_ABORT("__libnx_aligned_alloc was called");
+}
+
+void __libnx_free(void *mem) {
+    AMS_ABORT("__libnx_free was called");
+}
+
+int main(int argc, char **argv)
+{
+    /* TODO ThreadName */
+
+    /* Initialize htcs. */
+    constexpr auto HtcsSocketCountMax = 8;
+    const size_t buffer_size = htcs::GetWorkingMemorySize(HtcsSocketCountMax);
+    AMS_ABORT_UNLESS(sizeof(dmnt::g_htcs_buffer) >= buffer_size);
+    htcs::InitializeForSystem(dmnt::g_htcs_buffer, buffer_size, HtcsSocketCountMax);
+
+    /* Initialize debug log thread. */
+    dmnt::InitializeDebugLog();
+
+    /* TODO: Start GdbServer. */
+
+    /* TODO */
+    u64 i = 0;
+    while (true) {
+        AMS_DMNT2_DEBUG_LOG("Log #%llu\n", i++);
+        os::SleepThread(TimeSpan::FromSeconds(1));
+    }
+
+    return 0;
+}