fatal: wip (pending libnx pr) update for new sf semantics

stratosphere/fatal/source/fatal_debug.cpp

@@ -28,6 +28,31 @@ namespace ams::fatal::srv {
             u64 lr;
         };
 
+        constexpr inline size_t MaxThreads = 0x60;
+
+        constinit std::pair<u64, u64> g_thread_id_to_tls_map[MaxThreads];
+        constinit size_t g_tls_map_index = 0;
+
+        void ResetThreadTlsMap() {
+            g_tls_map_index = 0;
+        }
+
+        void SetThreadTls(u64 thread_id, u64 tls) {
+            if (g_tls_map_index < MaxThreads) {
+                g_thread_id_to_tls_map[g_tls_map_index++] = std::make_pair(thread_id, tls);
+            }
+        }
+
+        bool GetThreadTls(u64 *out, u64 thread_id) {
+            for (size_t i = 0; i < g_tls_map_index; ++i) {
+                if (g_thread_id_to_tls_map[i].first == thread_id) {
+                    *out = g_thread_id_to_tls_map[i].second;
+                    return true;
+                }
+            }
+            return false;
+        }
+
         bool IsThreadFatalCaller(Result result, u32 debug_handle, u64 thread_id, u64 thread_tls_addr, ThreadContext *thread_ctx) {
             /* Verify that the thread is running or waiting. */
             {
@@ -177,7 +202,7 @@ namespace ams::fatal::srv {
         ON_SCOPE_EXIT { R_ABORT_UNLESS(svc::CloseHandle(debug_handle)); };
 
         /* First things first, check if process is 64 bits, and get list of thread infos. */
-        std::unordered_map<u64, u64> thread_id_to_tls;
+        ResetThreadTlsMap();
         {
             bool got_create_process = false;
             svc::DebugEventInfo d;
@@ -189,7 +214,7 @@ namespace ams::fatal::srv {
                         got_create_process = true;
                         break;
                     case svc::DebugEvent_CreateThread:
-                        thread_id_to_tls[d.info.create_thread.thread_id] = d.info.create_thread.tls_address;
+                        SetThreadTls(d.info.create_thread.thread_id, d.info.create_thread.tls_address);
                         break;
                     case svc::DebugEvent_Exception:
                     case svc::DebugEvent_ExitProcess:
@@ -224,13 +249,14 @@ namespace ams::fatal::srv {
             /* We need to locate the thread that's called fatal. */
             for (s32 i = 0; i < thread_count; i++) {
                 const u64 cur_thread_id = thread_ids[i];
-                if (thread_id_to_tls.find(cur_thread_id) == thread_id_to_tls.end()) {
+                u64 cur_thread_tls;
+                if (!GetThreadTls(std::addressof(cur_thread_tls), cur_thread_id)) {
                     continue;
                 }
 
-                if (IsThreadFatalCaller(ctx->result, debug_handle, cur_thread_id, thread_id_to_tls[cur_thread_id], &thread_ctx)) {
+                if (IsThreadFatalCaller(ctx->result, debug_handle, cur_thread_id, cur_thread_tls, &thread_ctx)) {
-                    thread_id = cur_thread_id;
+                    thread_id  = cur_thread_id;
-                    thread_tls = thread_id_to_tls[thread_id];
+                    thread_tls = cur_thread_tls;
                     found_fatal_caller = true;
                     break;
                 }

stratosphere/fatal/source/fatal_font.cpp

@@ -17,12 +17,41 @@
 #include "fatal_config.hpp"
 #include "fatal_font.hpp"
 
+namespace ams::fatal::srv::font {
+
+    constinit lmem::HeapHandle g_font_heap_handle;
+
+    void SetHeapMemory(void *memory, size_t memory_size) {
+        g_font_heap_handle = lmem::CreateExpHeap(memory, memory_size, lmem::CreateOption_None);
+    }
+
+    void *AllocateForFont(size_t size) {
+        return lmem::AllocateFromExpHeap(g_font_heap_handle, size);
+    }
+
+    void DeallocateForFont(void *p) {
+        if (p != nullptr) {
+            return lmem::FreeToExpHeap(g_font_heap_handle, p);
+        }
+    }
+
+
+}
+
+#define STBTT_assert(x)    AMS_ASSERT(x)
+#define STBTT_malloc(x,u)  ((void)(u),ams::fatal::srv::font::AllocateForFont(x))
+#define STBTT_free(x,u)    ((void)(u),ams::fatal::srv::font::DeallocateForFont(x))
+
 #define STBTT_STATIC
 #define STB_TRUETYPE_IMPLEMENTATION
 #include "stb_truetype.h"
 #undef  STBTT_STATIC
 #undef  STB_TRUETYPE_IMPLEMENTATION
 
+#undef  STBTT_malloc
+#undef  STBTT_free
+#undef  STBTT_assert
+
 /* Define color conversion macros. */
 #define RGB888_TO_RGB565(r, g, b) ((((r >> 3) << 11) & 0xF800) | (((g >> 2) << 5) & 0x7E0) | ((b >> 3) & 0x1F))
 #define RGB565_GET_R8(c) ((((c >> 11) & 0x1F) << 3) | ((c >> 13) & 7))
@@ -66,7 +95,7 @@ namespace ams::fatal::srv::font {
         void DrawCodePoint(u32 codepoint, u32 x, u32 y) {
             int width = 0, height = 0;
             u8* imageptr = stbtt_GetCodepointBitmap(&g_stb_font, g_font_size, g_font_size, codepoint, &width, &height, 0, 0);
-            ON_SCOPE_EXIT { std::free(imageptr); };
+            ON_SCOPE_EXIT { DeallocateForFont(imageptr); };
 
             for (int tmpy = 0; tmpy < height; tmpy++) {
                 for (int tmpx = 0; tmpx < width; tmpx++) {

stratosphere/fatal/source/fatal_font.hpp

@@ -20,6 +20,7 @@ namespace ams::fatal::srv::font {
 
     Result InitializeSharedFont();
     void ConfigureFontFramebuffer(u16 *fb, u32 (*unswizzle_func)(u32, u32));
+    void SetHeapMemory(void *memory, size_t memory_size);
 
     void SetFontColor(u16 color);
     void SetPosition(u32 x, u32 y);

stratosphere/fatal/source/fatal_main.cpp

@@ -25,7 +25,7 @@ extern "C" {
     u32 __nx_applet_type = AppletType_None;
     u32 __nx_fs_num_sessions = 1;
 
-    #define INNER_HEAP_SIZE 0x240000
+    #define INNER_HEAP_SIZE 0x0
     size_t nx_inner_heap_size = INNER_HEAP_SIZE;
     char   nx_inner_heap[INNER_HEAP_SIZE];
 
@@ -40,6 +40,9 @@ extern "C" {
     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_thread_alloc(size_t size);
+    void __libnx_thread_free(void *mem);
 }
 
 namespace ams {
@@ -56,6 +59,29 @@ namespace ams {
 
 using namespace ams;
 
+namespace ams::fatal {
+
+    namespace {
+
+        constinit u8 g_fs_heap_memory[2_KB];
+        lmem::HeapHandle g_fs_heap_handle;
+
+        void *AllocateForFs(size_t size) {
+            return lmem::AllocateFromExpHeap(g_fs_heap_handle, size);
+        }
+
+        void DeallocateForFs(void *p, size_t size) {
+            return lmem::FreeToExpHeap(g_fs_heap_handle, p);
+        }
+
+        void InitializeFsHeap() {
+            g_fs_heap_handle = lmem::CreateExpHeap(g_fs_heap_memory, sizeof(g_fs_heap_memory), lmem::CreateOption_ThreadSafe);
+        }
+
+    }
+
+}
+
 void __libnx_exception_handler(ThreadExceptionDump *ctx) {
     ams::CrashHandler(ctx);
 }
@@ -75,6 +101,9 @@ void __libnx_initheap(void) {
 void __appInit(void) {
     hos::InitializeForStratosphere();
 
+    fatal::InitializeFsHeap();
+    fs::SetAllocator(fatal::AllocateForFs, fatal::DeallocateForFs);
+
     sm::DoWithSession([&]() {
         R_ABORT_UNLESS(setInitialize());
         R_ABORT_UNLESS(setsysInitialize());
@@ -137,8 +166,38 @@ namespace {
 
     sf::hipc::ServerManager<NumServers, ServerOptions, NumSessions> g_server_manager;
 
+    constinit sf::UnmanagedServiceObject<fatal::impl::IService, fatal::srv::Service> g_user_service_object;
+    constinit sf::UnmanagedServiceObject<fatal::impl::IPrivateService, fatal::srv::Service> g_private_service_object;
+
 }
 
+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_thread_alloc(size_t size) {
+    AMS_ABORT("__libnx_thread_alloc was called");
+}
+
+void __libnx_thread_free(void *mem) {
+    AMS_ABORT("__libnx_thread_free was called");
+}
 
 int main(int argc, char **argv)
 {
@@ -156,8 +215,8 @@ int main(int argc, char **argv)
     fatal::srv::CheckRepairStatus();
 
     /* Create services. */
-    R_ABORT_UNLESS((g_server_manager.RegisterServer<fatal::impl::IPrivateService, fatal::srv::PrivateService>(PrivateServiceName, PrivateMaxSessions)));
+    R_ABORT_UNLESS(g_server_manager.RegisterObjectForServer(g_user_service_object.GetShared(),    UserServiceName, UserMaxSessions));
-    R_ABORT_UNLESS((g_server_manager.RegisterServer<fatal::impl::IService, fatal::srv::Service>(UserServiceName, UserMaxSessions)));
+    R_ABORT_UNLESS(g_server_manager.RegisterObjectForServer(g_private_service_object.GetShared(), PrivateServiceName, PrivateMaxSessions));
 
     /* Add dirty event holder. */
     auto *dirty_event_holder = ams::fatal::srv::GetFatalDirtyWaitableHolder();

stratosphere/fatal/source/fatal_service.cpp

@@ -145,7 +145,7 @@ namespace ams::fatal::srv {
         return g_context.ThrowFatalWithCpuContext(result, client_pid.GetValue(), policy, cpu_ctx);
     }
 
-    Result PrivateService::GetFatalEvent(sf::OutCopyHandle out_h) {
+    Result Service::GetFatalEvent(sf::OutCopyHandle out_h) {
         const os::SystemEventType *event;
         R_TRY(g_context.GetEvent(std::addressof(event)));
         out_h.SetValue(os::GetReadableHandleOfSystemEvent(event));

stratosphere/fatal/source/fatal_service.hpp

@@ -18,19 +18,15 @@
 
 namespace ams::fatal::srv {
 
-    class Service final {
+    class Service {
         public:
             Result ThrowFatal(Result error, const sf::ClientProcessId &client_pid);
             Result ThrowFatalWithPolicy(Result error, const sf::ClientProcessId &client_pid, FatalPolicy policy);
             Result ThrowFatalWithCpuContext(Result error, const sf::ClientProcessId &client_pid, FatalPolicy policy, const CpuContext &cpu_ctx);
-    };
-    static_assert(fatal::impl::IsIService<Service>);
-
-    class PrivateService final {
-        public:
             Result GetFatalEvent(sf::OutCopyHandle out_h);
     };
-    static_assert(fatal::impl::IsIPrivateService<PrivateService>);
+    static_assert(fatal::impl::IsIService<Service>);
+    static_assert(fatal::impl::IsIPrivateService<Service>);
 
 }
 

stratosphere/fatal/source/fatal_task_screen.cpp

@@ -21,7 +21,6 @@
 namespace ams::fatal::srv {
 
     /* Include Atmosphere logo into its own anonymous namespace. */
-
     namespace {
 
         #include "fatal_ams_logo.inc"
@@ -39,6 +38,44 @@ namespace ams::fatal::srv {
         constexpr u32 FatalScreenWidthAlignedBytes = (FatalScreenWidth * FatalScreenBpp + 63) & ~63;
         constexpr u32 FatalScreenWidthAligned = FatalScreenWidthAlignedBytes / FatalScreenBpp;
 
+        /* There should only be a single transfer memory (for nv). */
+        alignas(os::MemoryPageSize) constinit u8 g_nv_transfer_memory[0x40000];
+
+        /* There should only be a single (1280*768) framebuffer. */
+        alignas(os::MemoryPageSize) constinit u8 g_framebuffer_memory[FatalScreenWidthAlignedBytes * util::AlignUp(FatalScreenHeight, 128)];
+
+    }
+
+}
+
+extern "C" void *__libnx_tmem_alloc(size_t size) {
+    return ams::fatal::srv::g_nv_transfer_memory;
+}
+
+extern "C" void __libnx_tmem_free(void *mem) {
+    /* ... */
+}
+
+extern "C" void *__libnx_framebuffer_alloc(size_t size) {
+    return ams::fatal::srv::g_framebuffer_memory;
+}
+
+extern "C" void __libnx_framebuffer_free(void *mem) {
+    /* ... */
+}
+
+extern "C" void *__libnx_framebuffer_linear_alloc(size_t size) {
+    AMS_ABORT("__libnx_framebuffer_linear_alloc was called");
+}
+
+extern "C" void __libnx_framebuffer_linear_free(void *mem) {
+    AMS_ABORT("__libnx_framebuffer_linear_free was called");
+}
+
+namespace ams::fatal::srv {
+
+    namespace {
+
         /* Pixel calculation helper. */
         constexpr u32 GetPixelOffset(u32 x, u32 y) {
             u32 tmp_pos = ((y & 127) / 16) + (x/32*8) + ((y/16/8)*(((FatalScreenWidthAligned/2)/16*8)));
@@ -60,6 +97,7 @@ namespace ams::fatal::srv {
                 Result SetupDisplayInternal();
                 Result SetupDisplayExternal();
                 Result PrepareScreenForDrawing();
+                void   PreRenderFrameBuffer();
                 Result ShowFatal();
             public:
                 virtual Result Run() override;
@@ -178,24 +216,22 @@ namespace ams::fatal::srv {
             return ResultSuccess();
         }
 
-        Result ShowFatalTask::ShowFatal() {
+        void ShowFatalTask::PreRenderFrameBuffer() {
             const FatalConfig &config = GetFatalConfig();
 
-            /* Prepare screen for drawing. */
+            /* Pre-render the image into the static framebuffer. */
-            sm::DoWithSession([&]() {
+            u16 *tiled_buf = reinterpret_cast<u16 *>(g_framebuffer_memory);
-                R_ABORT_UNLESS(PrepareScreenForDrawing());
-            });
 
-            /* Dequeue a buffer. */
+            /* Temporarily use the NV transfer memory as font backing heap. */
-            u16 *tiled_buf = reinterpret_cast<u16 *>(framebufferBegin(&this->fb, NULL));
+            font::SetHeapMemory(g_nv_transfer_memory, sizeof(g_nv_transfer_memory));
-            R_UNLESS(tiled_buf != nullptr, ResultNullGraphicsBuffer());
+            ON_SCOPE_EXIT { std::memset(g_nv_transfer_memory, 0, sizeof(g_nv_transfer_memory)); };
 
             /* Let the font manager know about our framebuffer. */
             font::ConfigureFontFramebuffer(tiled_buf, GetPixelOffset);
             font::SetFontColor(0xFFFF);
 
             /* Draw a background. */
-            for (size_t i = 0; i < this->fb.fb_size / sizeof(*tiled_buf); i++) {
+            for (size_t i = 0; i < sizeof(g_framebuffer_memory) / sizeof(*tiled_buf); i++) {
                 tiled_buf[i] = 0x39C9;
             }
 
@@ -412,6 +448,22 @@ namespace ams::fatal::srv {
                     }
                 }
             }
+        }
+
+        Result ShowFatalTask::ShowFatal() {
+            /* Pre-render the framebuffer. */
+            PreRenderFrameBuffer();
+
+            /* Prepare screen for drawing. */
+            sm::DoWithSession([&]() {
+                R_ABORT_UNLESS(PrepareScreenForDrawing());
+            });
+
+            /* Dequeue a buffer. */
+            R_UNLESS(framebufferBegin(&this->fb, NULL) != nullptr, ResultNullGraphicsBuffer());
+
+            /* We've already pre-rendered the frame into the static buffer. */
+            /* ... */
 
             /* Enqueue the buffer. */
             framebufferEnd(&fb);