8 files changed, 88 insertions, 1 deletions

diff --git a/src/common/logging/filter.cpp b/src/common/logging/filter.cpp
index 9120cc178..4acbff649 100644
--- a/src/common/logging/filter.cpp
+++ b/src/common/logging/filter.cpp
@@ -101,6 +101,7 @@ bool ParseFilterRule(Filter& instance, Iterator begin, Iterator end) {
     SUB(Service, GRC)                                                                              \
     SUB(Service, HID)                                                                              \
     SUB(Service, IRS)                                                                              \
+    SUB(Service, JIT)                                                                              \
     SUB(Service, LBL)                                                                              \
     SUB(Service, LDN)                                                                              \
     SUB(Service, LDR)                                                                              \
diff --git a/src/common/logging/types.h b/src/common/logging/types.h
index f803ab796..99c15fa96 100644
--- a/src/common/logging/types.h
+++ b/src/common/logging/types.h
@@ -69,6 +69,7 @@ enum class Class : u8 {
     Service_GRC,       ///< The game recording service
     Service_HID,       ///< The HID (Human interface device) service
     Service_IRS,       ///< The IRS service
+    Service_JIT,       ///< The JIT service
     Service_LBL,       ///< The LBL (LCD backlight) service
     Service_LDN,       ///< The LDN (Local domain network) service
     Service_LDR,       ///< The loader service
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 6536d0544..81eaf0942 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -458,6 +458,8 @@ add_library(core STATIC
     hle/service/hid/controllers/touchscreen.h
     hle/service/hid/controllers/xpad.cpp
     hle/service/hid/controllers/xpad.h
+    hle/service/jit/jit.cpp
+    hle/service/jit/jit.h
     hle/service/lbl/lbl.cpp
     hle/service/lbl/lbl.h
     hle/service/ldn/errors.h
diff --git a/src/core/hle/service/am/am.cpp b/src/core/hle/service/am/am.cpp
index 420de3c54..4d7e5ecd3 100644
--- a/src/core/hle/service/am/am.cpp
+++ b/src/core/hle/service/am/am.cpp
@@ -1337,7 +1337,7 @@ IApplicationFunctions::IApplicationFunctions(Core::System& system_)
         {200, nullptr, "GetLastApplicationExitReason"},
         {500, nullptr, "StartContinuousRecordingFlushForDebug"},
         {1000, nullptr, "CreateMovieMaker"},
-        {1001, nullptr, "PrepareForJit"},
+        {1001, &IApplicationFunctions::PrepareForJit, "PrepareForJit"},
     };
     // clang-format on
 
@@ -1787,6 +1787,13 @@ void IApplicationFunctions::GetHealthWarningDisappearedSystemEvent(Kernel::HLERe
     rb.PushCopyObjects(health_warning_disappeared_system_event->GetReadableEvent());
 }
 
+void IApplicationFunctions::PrepareForJit(Kernel::HLERequestContext& ctx) {
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
 void InstallInterfaces(SM::ServiceManager& service_manager, NVFlinger::NVFlinger& nvflinger,
                        Core::System& system) {
     auto message_queue = std::make_shared<AppletMessageQueue>(system);
diff --git a/src/core/hle/service/am/am.h b/src/core/hle/service/am/am.h
index fdd937b82..11a3c0459 100644
--- a/src/core/hle/service/am/am.h
+++ b/src/core/hle/service/am/am.h
@@ -336,6 +336,7 @@ private:
     void TryPopFromFriendInvitationStorageChannel(Kernel::HLERequestContext& ctx);
     void GetNotificationStorageChannelEvent(Kernel::HLERequestContext& ctx);
     void GetHealthWarningDisappearedSystemEvent(Kernel::HLERequestContext& ctx);
+    void PrepareForJit(Kernel::HLERequestContext& ctx);
 
     KernelHelpers::ServiceContext service_context;
 
diff --git a/src/core/hle/service/jit/jit.cpp b/src/core/hle/service/jit/jit.cpp
new file mode 100644
index 000000000..c8ebd2e3f
--- /dev/null
+++ b/src/core/hle/service/jit/jit.cpp
@@ -0,0 +1,53 @@
+// Copyright 2022 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "core/hle/ipc_helpers.h"
+#include "core/hle/result.h"
+#include "core/hle/service/jit/jit.h"
+#include "core/hle/service/service.h"
+
+namespace Service::JIT {
+
+class IJitEnvironment final : public ServiceFramework<IJitEnvironment> {
+public:
+    explicit IJitEnvironment(Core::System& system_) : ServiceFramework{system_, "IJitEnvironment"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "GenerateCode"},
+            {1, nullptr, "Control"},
+            {1000, nullptr, "LoadPlugin"},
+            {1001, nullptr, "GetCodeAddress"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+class JITU final : public ServiceFramework<JITU> {
+public:
+    explicit JITU(Core::System& system_) : ServiceFramework{system_, "jit:u"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &JITU::CreateJitEnvironment, "CreateJitEnvironment"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+    void CreateJitEnvironment(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_JIT, "called");
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(ResultSuccess);
+        rb.PushIpcInterface<IJitEnvironment>(system);
+    }
+};
+
+void InstallInterfaces(SM::ServiceManager& sm, Core::System& system) {
+    std::make_shared<JITU>(system)->InstallAsService(sm);
+}
+
+} // namespace Service::JIT
diff --git a/src/core/hle/service/jit/jit.h b/src/core/hle/service/jit/jit.h
new file mode 100644
index 000000000..8fbf504a1
--- /dev/null
+++ b/src/core/hle/service/jit/jit.h
@@ -0,0 +1,20 @@
+// Copyright 2022 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+namespace Core {
+class System;
+}
+
+namespace Service::SM {
+class ServiceManager;
+}
+
+namespace Service::JIT {
+
+/// Registers all JIT services with the specified service manager.
+void InstallInterfaces(SM::ServiceManager& sm, Core::System& system);
+
+} // namespace Service::JIT
diff --git a/src/core/hle/service/service.cpp b/src/core/hle/service/service.cpp
index 8d902beb9..0f59a03c5 100644
--- a/src/core/hle/service/service.cpp
+++ b/src/core/hle/service/service.cpp
@@ -32,6 +32,7 @@
 #include "core/hle/service/glue/glue.h"
 #include "core/hle/service/grc/grc.h"
 #include "core/hle/service/hid/hid.h"
+#include "core/hle/service/jit/jit.h"
 #include "core/hle/service/lbl/lbl.h"
 #include "core/hle/service/ldn/ldn.h"
 #include "core/hle/service/ldr/ldr.h"
@@ -262,6 +263,7 @@ Services::Services(std::shared_ptr<SM::ServiceManager>& sm, Core::System& system
     Glue::InstallInterfaces(system);
     GRC::InstallInterfaces(*sm, system);
     HID::InstallInterfaces(*sm, system);
+    JIT::InstallInterfaces(*sm, system);
     LBL::InstallInterfaces(*sm, system);
     LDN::InstallInterfaces(*sm, system);
     LDR::InstallInterfaces(*sm, system);