kernel/svc: convert to new style

src/core/hle/kernel/k_readable_event.cpp

@@ -48,24 +48,22 @@ Result KReadableEvent::Signal() {
         this->NotifyAvailable();
     }
 
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 Result KReadableEvent::Clear() {
     this->Reset();
 
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 Result KReadableEvent::Reset() {
     KScopedSchedulerLock lk{kernel};
 
-    if (!m_is_signaled) {
+    R_UNLESS(m_is_signaled, ResultInvalidState);
-        return ResultInvalidState;
-    }
 
     m_is_signaled = false;
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 } // namespace Kernel

src/core/hle/kernel/k_resource_limit.cpp

@@ -82,7 +82,7 @@ Result KResourceLimit::SetLimitValue(LimitableResource which, s64 value) {
     limit_values[index] = value;
     peak_values[index] = current_values[index];
 
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 bool KResourceLimit::Reserve(LimitableResource which, s64 value) {

src/core/hle/kernel/k_server_session.cpp

@@ -272,7 +272,7 @@ Result KServerSession::SendReply(bool is_hle) {
         }
     }
 
-    return result;
+    R_RETURN(result);
 }
 
 Result KServerSession::ReceiveRequest(std::shared_ptr<Service::HLERequestContext>* out_context,
@@ -339,7 +339,7 @@ Result KServerSession::ReceiveRequest(std::shared_ptr<Service::HLERequestContext
     }
 
     // We succeeded.
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 void KServerSession::CleanupRequests() {

src/core/hle/kernel/svc/svc_address_arbiter.cpp

@@ -43,18 +43,9 @@ Result WaitForAddress(Core::System& system, VAddr address, ArbitrationType arb_t
               address, arb_type, value, timeout_ns);
 
     // Validate input.
-    if (IsKernelAddress(address)) {
+    R_UNLESS(!IsKernelAddress(address), ResultInvalidCurrentMemory);
-        LOG_ERROR(Kernel_SVC, "Attempting to wait on kernel address (address={:08X})", address);
+    R_UNLESS(Common::IsAligned(address, sizeof(s32)), ResultInvalidAddress);
-        return ResultInvalidCurrentMemory;
+    R_UNLESS(IsValidArbitrationType(arb_type), ResultInvalidEnumValue);
-    }
-    if (!Common::IsAligned(address, sizeof(s32))) {
-        LOG_ERROR(Kernel_SVC, "Wait address must be 4 byte aligned (address={:08X})", address);
-        return ResultInvalidAddress;
-    }
-    if (!IsValidArbitrationType(arb_type)) {
-        LOG_ERROR(Kernel_SVC, "Invalid arbitration type specified (type={})", arb_type);
-        return ResultInvalidEnumValue;
-    }
 
     // Convert timeout from nanoseconds to ticks.
     s64 timeout{};
@@ -72,7 +63,8 @@ Result WaitForAddress(Core::System& system, VAddr address, ArbitrationType arb_t
         timeout = timeout_ns;
     }
 
-    return GetCurrentProcess(system.Kernel()).WaitAddressArbiter(address, arb_type, value, timeout);
+    R_RETURN(
+        GetCurrentProcess(system.Kernel()).WaitAddressArbiter(address, arb_type, value, timeout));
 }
 
 // Signals to an address (via Address Arbiter)
@@ -82,41 +74,32 @@ Result SignalToAddress(Core::System& system, VAddr address, SignalType signal_ty
               address, signal_type, value, count);
 
     // Validate input.
-    if (IsKernelAddress(address)) {
+    R_UNLESS(!IsKernelAddress(address), ResultInvalidCurrentMemory);
-        LOG_ERROR(Kernel_SVC, "Attempting to signal to a kernel address (address={:08X})", address);
+    R_UNLESS(Common::IsAligned(address, sizeof(s32)), ResultInvalidAddress);
-        return ResultInvalidCurrentMemory;
+    R_UNLESS(IsValidSignalType(signal_type), ResultInvalidEnumValue);
-    }
-    if (!Common::IsAligned(address, sizeof(s32))) {
-        LOG_ERROR(Kernel_SVC, "Signaled address must be 4 byte aligned (address={:08X})", address);
-        return ResultInvalidAddress;
-    }
-    if (!IsValidSignalType(signal_type)) {
-        LOG_ERROR(Kernel_SVC, "Invalid signal type specified (type={})", signal_type);
-        return ResultInvalidEnumValue;
-    }
 
-    return GetCurrentProcess(system.Kernel())
+    R_RETURN(GetCurrentProcess(system.Kernel())
-        .SignalAddressArbiter(address, signal_type, value, count);
+                 .SignalAddressArbiter(address, signal_type, value, count));
 }
 
 Result WaitForAddress64(Core::System& system, VAddr address, ArbitrationType arb_type, s32 value,
                         s64 timeout_ns) {
-    return WaitForAddress(system, address, arb_type, value, timeout_ns);
+    R_RETURN(WaitForAddress(system, address, arb_type, value, timeout_ns));
 }
 
 Result SignalToAddress64(Core::System& system, VAddr address, SignalType signal_type, s32 value,
                          s32 count) {
-    return SignalToAddress(system, address, signal_type, value, count);
+    R_RETURN(SignalToAddress(system, address, signal_type, value, count));
 }
 
 Result WaitForAddress64From32(Core::System& system, u32 address, ArbitrationType arb_type,
                               s32 value, s64 timeout_ns) {
-    return WaitForAddress(system, address, arb_type, value, timeout_ns);
+    R_RETURN(WaitForAddress(system, address, arb_type, value, timeout_ns));
 }
 
 Result SignalToAddress64From32(Core::System& system, u32 address, SignalType signal_type, s32 value,
                                s32 count) {
-    return SignalToAddress(system, address, signal_type, value, count);
+    R_RETURN(SignalToAddress(system, address, signal_type, value, count));
 }
 
 } // namespace Kernel::Svc

src/core/hle/kernel/svc/svc_code_memory.cpp

@@ -1,6 +1,7 @@
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include "common/scope_exit.h"
 #include "core/core.h"
 #include "core/hle/kernel/k_code_memory.h"
 #include "core/hle/kernel/k_process.h"
@@ -44,6 +45,7 @@ Result CreateCodeMemory(Core::System& system, Handle* out, VAddr address, uint64
 
     KCodeMemory* code_mem = KCodeMemory::Create(kernel);
     R_UNLESS(code_mem != nullptr, ResultOutOfResource);
+    SCOPE_EXIT({ code_mem->Close(); });
 
     // Verify that the region is in range.
     R_UNLESS(GetCurrentProcess(system.Kernel()).PageTable().Contains(address, size),
@@ -58,9 +60,7 @@ Result CreateCodeMemory(Core::System& system, Handle* out, VAddr address, uint64
     // Add the code memory to the handle table.
     R_TRY(GetCurrentProcess(system.Kernel()).GetHandleTable().Add(out, code_mem));
 
-    code_mem->Close();
+    R_SUCCEED();
-
-    return ResultSuccess;
 }
 
 Result ControlCodeMemory(Core::System& system, Handle code_memory_handle,
@@ -140,10 +140,10 @@ Result ControlCodeMemory(Core::System& system, Handle code_memory_handle,
         R_TRY(code_mem->UnmapFromOwner(address, size));
     } break;
     default:
-        return ResultInvalidEnumValue;
+        R_THROW(ResultInvalidEnumValue);
     }
 
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 Result CreateCodeMemory64(Core::System& system, Handle* out_handle, uint64_t address,

src/core/hle/kernel/svc/svc_condition_variable.cpp

@@ -17,14 +17,8 @@ Result WaitProcessWideKeyAtomic(Core::System& system, VAddr address, VAddr cv_ke
               cv_key, tag, timeout_ns);
 
     // Validate input.
-    if (IsKernelAddress(address)) {
+    R_UNLESS(!IsKernelAddress(address), ResultInvalidCurrentMemory);
-        LOG_ERROR(Kernel_SVC, "Attempted to wait on kernel address (address={:08X})", address);
+    R_UNLESS(Common::IsAligned(address, sizeof(s32)), ResultInvalidAddress);
-        return ResultInvalidCurrentMemory;
-    }
-    if (!Common::IsAligned(address, sizeof(s32))) {
-        LOG_ERROR(Kernel_SVC, "Address must be 4 byte aligned (address={:08X})", address);
-        return ResultInvalidAddress;
-    }
 
     // Convert timeout from nanoseconds to ticks.
     s64 timeout{};
@@ -43,8 +37,9 @@ Result WaitProcessWideKeyAtomic(Core::System& system, VAddr address, VAddr cv_ke
     }
 
     // Wait on the condition variable.
-    return GetCurrentProcess(system.Kernel())
+    R_RETURN(
-        .WaitConditionVariable(address, Common::AlignDown(cv_key, sizeof(u32)), tag, timeout);
+        GetCurrentProcess(system.Kernel())
+            .WaitConditionVariable(address, Common::AlignDown(cv_key, sizeof(u32)), tag, timeout));
 }
 
 /// Signal process wide key

src/core/hle/kernel/svc/svc_event.cpp

@@ -21,7 +21,7 @@ Result SignalEvent(Core::System& system, Handle event_handle) {
     KScopedAutoObject event = handle_table.GetObject<KEvent>(event_handle);
     R_UNLESS(event.IsNotNull(), ResultInvalidHandle);
 
-    return event->Signal();
+    R_RETURN(event->Signal());
 }
 
 Result ClearEvent(Core::System& system, Handle event_handle) {
@@ -34,7 +34,7 @@ Result ClearEvent(Core::System& system, Handle event_handle) {
     {
         KScopedAutoObject event = handle_table.GetObject<KEvent>(event_handle);
         if (event.IsNotNull()) {
-            return event->Clear();
+            R_RETURN(event->Clear());
         }
     }
 
@@ -42,13 +42,11 @@ Result ClearEvent(Core::System& system, Handle event_handle) {
     {
         KScopedAutoObject readable_event = handle_table.GetObject<KReadableEvent>(event_handle);
         if (readable_event.IsNotNull()) {
-            return readable_event->Clear();
+            R_RETURN(readable_event->Clear());
         }
     }
 
-    LOG_ERROR(Kernel_SVC, "Event handle does not exist, event_handle=0x{:08X}", event_handle);
+    R_THROW(ResultInvalidHandle);
-
-    return ResultInvalidHandle;
 }
 
 Result CreateEvent(Core::System& system, Handle* out_write, Handle* out_read) {
@@ -86,14 +84,12 @@ Result CreateEvent(Core::System& system, Handle* out_write, Handle* out_read) {
     R_TRY(handle_table.Add(out_write, event));
 
     // Ensure that we maintain a clean handle state on exit.
-    auto handle_guard = SCOPE_GUARD({ handle_table.Remove(*out_write); });
+    ON_RESULT_FAILURE {
+        handle_table.Remove(*out_write);
+    };
 
     // Add the readable event to the handle table.
-    R_TRY(handle_table.Add(out_read, std::addressof(event->GetReadableEvent())));
+    R_RETURN(handle_table.Add(out_read, std::addressof(event->GetReadableEvent())));
-
-    // We succeeded.
-    handle_guard.Cancel();
-    return ResultSuccess;
 }
 
 Result SignalEvent64(Core::System& system, Handle event_handle) {

src/core/hle/kernel/svc/svc_info.cpp

@@ -38,126 +38,110 @@ Result GetInfo(Core::System& system, u64* result, InfoType info_id_type, Handle
     case InfoType::UsedNonSystemMemorySize:
     case InfoType::IsApplication:
     case InfoType::FreeThreadCount: {
-        if (info_sub_id != 0) {
+        R_UNLESS(info_sub_id == 0, ResultInvalidEnumValue);
-            LOG_ERROR(Kernel_SVC, "Info sub id is non zero! info_id={}, info_sub_id={}", info_id,
-                      info_sub_id);
-            return ResultInvalidEnumValue;
-        }
 
         const auto& handle_table = GetCurrentProcess(system.Kernel()).GetHandleTable();
         KScopedAutoObject process = handle_table.GetObject<KProcess>(handle);
-        if (process.IsNull()) {
+        R_UNLESS(process.IsNotNull(), ResultInvalidHandle);
-            LOG_ERROR(Kernel_SVC, "Process is not valid! info_id={}, info_sub_id={}, handle={:08X}",
-                      info_id, info_sub_id, handle);
-            return ResultInvalidHandle;
-        }
 
         switch (info_id_type) {
         case InfoType::CoreMask:
             *result = process->GetCoreMask();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::PriorityMask:
             *result = process->GetPriorityMask();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::AliasRegionAddress:
             *result = process->PageTable().GetAliasRegionStart();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::AliasRegionSize:
             *result = process->PageTable().GetAliasRegionSize();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::HeapRegionAddress:
             *result = process->PageTable().GetHeapRegionStart();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::HeapRegionSize:
             *result = process->PageTable().GetHeapRegionSize();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::AslrRegionAddress:
             *result = process->PageTable().GetAliasCodeRegionStart();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::AslrRegionSize:
             *result = process->PageTable().GetAliasCodeRegionSize();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::StackRegionAddress:
             *result = process->PageTable().GetStackRegionStart();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::StackRegionSize:
             *result = process->PageTable().GetStackRegionSize();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::TotalMemorySize:
             *result = process->GetTotalPhysicalMemoryAvailable();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::UsedMemorySize:
             *result = process->GetTotalPhysicalMemoryUsed();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::SystemResourceSizeTotal:
             *result = process->GetSystemResourceSize();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::SystemResourceSizeUsed:
             LOG_WARNING(Kernel_SVC, "(STUBBED) Attempted to query system resource usage");
             *result = process->GetSystemResourceUsage();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::ProgramId:
             *result = process->GetProgramID();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::UserExceptionContextAddress:
             *result = process->GetProcessLocalRegionAddress();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::TotalNonSystemMemorySize:
             *result = process->GetTotalPhysicalMemoryAvailableWithoutSystemResource();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::UsedNonSystemMemorySize:
             *result = process->GetTotalPhysicalMemoryUsedWithoutSystemResource();
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::IsApplication:
             LOG_WARNING(Kernel_SVC, "(STUBBED) Assuming process is application");
             *result = true;
-            return ResultSuccess;
+            R_SUCCEED();
 
         case InfoType::FreeThreadCount:
             *result = process->GetFreeThreadCount();
-            return ResultSuccess;
+            R_SUCCEED();
 
         default:
             break;
         }
 
         LOG_ERROR(Kernel_SVC, "Unimplemented svcGetInfo id=0x{:016X}", info_id);
-        return ResultInvalidEnumValue;
+        R_THROW(ResultInvalidEnumValue);
     }
 
     case InfoType::DebuggerAttached:
         *result = 0;
-        return ResultSuccess;
+        R_SUCCEED();
 
     case InfoType::ResourceLimit: {
-        if (handle != 0) {
+        R_UNLESS(handle == 0, ResultInvalidHandle);
-            LOG_ERROR(Kernel, "Handle is non zero! handle={:08X}", handle);
+        R_UNLESS(info_sub_id == 0, ResultInvalidCombination);
-            return ResultInvalidHandle;
-        }
-
-        if (info_sub_id != 0) {
-            LOG_ERROR(Kernel, "Info sub id is non zero! info_id={}, info_sub_id={}", info_id,
-                      info_sub_id);
-            return ResultInvalidCombination;
-        }
 
         KProcess* const current_process = GetCurrentProcessPointer(system.Kernel());
         KHandleTable& handle_table = current_process->GetHandleTable();
@@ -165,44 +149,35 @@ Result GetInfo(Core::System& system, u64* result, InfoType info_id_type, Handle
         if (!resource_limit) {
             *result = Svc::InvalidHandle;
             // Yes, the kernel considers this a successful operation.
-            return ResultSuccess;
+            R_SUCCEED();
         }
 
         Handle resource_handle{};
         R_TRY(handle_table.Add(&resource_handle, resource_limit));
 
         *result = resource_handle;
-        return ResultSuccess;
+        R_SUCCEED();
     }
 
     case InfoType::RandomEntropy:
-        if (handle != 0) {
+        R_UNLESS(handle == 0, ResultInvalidHandle);
-            LOG_ERROR(Kernel_SVC, "Process Handle is non zero, expected 0 result but got {:016X}",
+        R_UNLESS(info_sub_id < KProcess::RANDOM_ENTROPY_SIZE, ResultInvalidCombination);
-                      handle);
-            return ResultInvalidHandle;
-        }
-
-        if (info_sub_id >= KProcess::RANDOM_ENTROPY_SIZE) {
-            LOG_ERROR(Kernel_SVC, "Entropy size is out of range, expected {} but got {}",
-                      KProcess::RANDOM_ENTROPY_SIZE, info_sub_id);
-            return ResultInvalidCombination;
-        }
 
         *result = GetCurrentProcess(system.Kernel()).GetRandomEntropy(info_sub_id);
-        return ResultSuccess;
+        R_SUCCEED();
 
     case InfoType::InitialProcessIdRange:
         LOG_WARNING(Kernel_SVC,
                     "(STUBBED) Attempted to query privileged process id bounds, returned 0");
         *result = 0;
-        return ResultSuccess;
+        R_SUCCEED();
 
     case InfoType::ThreadTickCount: {
         constexpr u64 num_cpus = 4;
         if (info_sub_id != 0xFFFFFFFFFFFFFFFF && info_sub_id >= num_cpus) {
             LOG_ERROR(Kernel_SVC, "Core count is out of range, expected {} but got {}", num_cpus,
                       info_sub_id);
-            return ResultInvalidCombination;
+            R_THROW(ResultInvalidCombination);
         }
 
         KScopedAutoObject thread = GetCurrentProcess(system.Kernel())
@@ -211,7 +186,7 @@ Result GetInfo(Core::System& system, u64* result, InfoType info_id_type, Handle
         if (thread.IsNull()) {
             LOG_ERROR(Kernel_SVC, "Thread handle does not exist, handle=0x{:08X}",
                       static_cast<Handle>(handle));
-            return ResultInvalidHandle;
+            R_THROW(ResultInvalidHandle);
         }
 
         const auto& core_timing = system.CoreTiming();
@@ -230,7 +205,7 @@ Result GetInfo(Core::System& system, u64* result, InfoType info_id_type, Handle
         }
 
         *result = out_ticks;
-        return ResultSuccess;
+        R_SUCCEED();
     }
     case InfoType::IdleTickCount: {
         // Verify the input handle is invalid.
@@ -244,7 +219,7 @@ Result GetInfo(Core::System& system, u64* result, InfoType info_id_type, Handle
 
         // Get the idle tick count.
         *result = system.Kernel().CurrentScheduler()->GetIdleThread()->GetCpuTime();
-        return ResultSuccess;
+        R_SUCCEED();
     }
     case InfoType::MesosphereCurrentProcess: {
         // Verify the input handle is invalid.
@@ -265,11 +240,11 @@ Result GetInfo(Core::System& system, u64* result, InfoType info_id_type, Handle
         *result = tmp;
 
         // We succeeded.
-        return ResultSuccess;
+        R_SUCCEED();
     }
     default:
         LOG_ERROR(Kernel_SVC, "Unimplemented svcGetInfo id=0x{:016X}", info_id);
-        return ResultInvalidEnumValue;
+        R_THROW(ResultInvalidEnumValue);
     }
 }
 

src/core/hle/kernel/svc/svc_ipc.cpp

@@ -19,7 +19,7 @@ Result SendSyncRequest(Core::System& system, Handle handle) {
 
     LOG_TRACE(Kernel_SVC, "called handle=0x{:08X}({})", handle, session->GetName());
 
-    return session->SendSyncRequest();
+    R_RETURN(session->SendSyncRequest());
 }
 
 Result SendSyncRequestWithUserBuffer(Core::System& system, uint64_t message_buffer,
@@ -82,7 +82,7 @@ Result ReplyAndReceive(Core::System& system, s32* out_index, uint64_t handles_ad
         Result result = KSynchronizationObject::Wait(kernel, &index, objs.data(),
                                                      static_cast<s32>(objs.size()), timeout_ns);
         if (result == ResultTimedOut) {
-            return result;
+            R_RETURN(result);
         }
 
         // Receive the request.
@@ -97,7 +97,7 @@ Result ReplyAndReceive(Core::System& system, s32* out_index, uint64_t handles_ad
         }
 
         *out_index = index;
-        return result;
+        R_RETURN(result);
     }
 }
 

src/core/hle/kernel/svc/svc_lock.cpp

@@ -14,17 +14,10 @@ Result ArbitrateLock(Core::System& system, Handle thread_handle, VAddr address,
               thread_handle, address, tag);
 
     // Validate the input address.
-    if (IsKernelAddress(address)) {
+    R_UNLESS(!IsKernelAddress(address), ResultInvalidCurrentMemory);
-        LOG_ERROR(Kernel_SVC, "Attempting to arbitrate a lock on a kernel address (address={:08X})",
+    R_UNLESS(Common::IsAligned(address, sizeof(u32)), ResultInvalidAddress);
-                  address);
-        return ResultInvalidCurrentMemory;
-    }
-    if (!Common::IsAligned(address, sizeof(u32))) {
-        LOG_ERROR(Kernel_SVC, "Input address must be 4 byte aligned (address: {:08X})", address);
-        return ResultInvalidAddress;
-    }
 
-    return GetCurrentProcess(system.Kernel()).WaitForAddress(thread_handle, address, tag);
+    R_RETURN(GetCurrentProcess(system.Kernel()).WaitForAddress(thread_handle, address, tag));
 }
 
 /// Unlock a mutex
@@ -32,18 +25,10 @@ Result ArbitrateUnlock(Core::System& system, VAddr address) {
     LOG_TRACE(Kernel_SVC, "called address=0x{:X}", address);
 
     // Validate the input address.
-    if (IsKernelAddress(address)) {
+    R_UNLESS(!IsKernelAddress(address), ResultInvalidCurrentMemory);
-        LOG_ERROR(Kernel_SVC,
+    R_UNLESS(Common::IsAligned(address, sizeof(u32)), ResultInvalidAddress);
-                  "Attempting to arbitrate an unlock on a kernel address (address={:08X})",
-                  address);
-        return ResultInvalidCurrentMemory;
-    }
-    if (!Common::IsAligned(address, sizeof(u32))) {
-        LOG_ERROR(Kernel_SVC, "Input address must be 4 byte aligned (address: {:08X})", address);
-        return ResultInvalidAddress;
-    }
 
-    return GetCurrentProcess(system.Kernel()).SignalToAddress(address);
+    R_RETURN(GetCurrentProcess(system.Kernel()).SignalToAddress(address));
 }
 
 Result ArbitrateLock64(Core::System& system, Handle thread_handle, uint64_t address, uint32_t tag) {

src/core/hle/kernel/svc/svc_memory.cpp

@@ -33,49 +33,49 @@ Result MapUnmapMemorySanityChecks(const KPageTable& manager, VAddr dst_addr, VAd
                                   u64 size) {
     if (!Common::Is4KBAligned(dst_addr)) {
         LOG_ERROR(Kernel_SVC, "Destination address is not aligned to 4KB, 0x{:016X}", dst_addr);
-        return ResultInvalidAddress;
+        R_THROW(ResultInvalidAddress);
     }
 
     if (!Common::Is4KBAligned(src_addr)) {
         LOG_ERROR(Kernel_SVC, "Source address is not aligned to 4KB, 0x{:016X}", src_addr);
-        return ResultInvalidSize;
+        R_THROW(ResultInvalidSize);
     }
 
     if (size == 0) {
         LOG_ERROR(Kernel_SVC, "Size is 0");
-        return ResultInvalidSize;
+        R_THROW(ResultInvalidSize);
     }
 
     if (!Common::Is4KBAligned(size)) {
         LOG_ERROR(Kernel_SVC, "Size is not aligned to 4KB, 0x{:016X}", size);
-        return ResultInvalidSize;
+        R_THROW(ResultInvalidSize);
     }
 
     if (!IsValidAddressRange(dst_addr, size)) {
         LOG_ERROR(Kernel_SVC,
                   "Destination is not a valid address range, addr=0x{:016X}, size=0x{:016X}",
                   dst_addr, size);
-        return ResultInvalidCurrentMemory;
+        R_THROW(ResultInvalidCurrentMemory);
     }
 
     if (!IsValidAddressRange(src_addr, size)) {
         LOG_ERROR(Kernel_SVC, "Source is not a valid address range, addr=0x{:016X}, size=0x{:016X}",
                   src_addr, size);
-        return ResultInvalidCurrentMemory;
+        R_THROW(ResultInvalidCurrentMemory);
     }
 
     if (!manager.IsInsideAddressSpace(src_addr, size)) {
         LOG_ERROR(Kernel_SVC,
                   "Source is not within the address space, addr=0x{:016X}, size=0x{:016X}",
                   src_addr, size);
-        return ResultInvalidCurrentMemory;
+        R_THROW(ResultInvalidCurrentMemory);
     }
 
     if (manager.IsOutsideStackRegion(dst_addr, size)) {
         LOG_ERROR(Kernel_SVC,
                   "Destination is not within the stack region, addr=0x{:016X}, size=0x{:016X}",
                   dst_addr, size);
-        return ResultInvalidMemoryRegion;
+        R_THROW(ResultInvalidMemoryRegion);
     }
 
     if (manager.IsInsideHeapRegion(dst_addr, size)) {
@@ -83,7 +83,7 @@ Result MapUnmapMemorySanityChecks(const KPageTable& manager, VAddr dst_addr, VAd
                   "Destination does not fit within the heap region, addr=0x{:016X}, "
                   "size=0x{:016X}",
                   dst_addr, size);
-        return ResultInvalidMemoryRegion;
+        R_THROW(ResultInvalidMemoryRegion);
     }
 
     if (manager.IsInsideAliasRegion(dst_addr, size)) {
@@ -91,10 +91,10 @@ Result MapUnmapMemorySanityChecks(const KPageTable& manager, VAddr dst_addr, VAd
                   "Destination does not fit within the map region, addr=0x{:016X}, "
                   "size=0x{:016X}",
                   dst_addr, size);
-        return ResultInvalidMemoryRegion;
+        R_THROW(ResultInvalidMemoryRegion);
     }
 
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 } // namespace
@@ -117,7 +117,7 @@ Result SetMemoryPermission(Core::System& system, VAddr address, u64 size, Memory
     R_UNLESS(page_table.Contains(address, size), ResultInvalidCurrentMemory);
 
     // Set the memory attribute.
-    return page_table.SetMemoryPermission(address, size, perm);
+    R_RETURN(page_table.SetMemoryPermission(address, size, perm));
 }
 
 Result SetMemoryAttribute(Core::System& system, VAddr address, u64 size, u32 mask, u32 attr) {
@@ -141,7 +141,7 @@ Result SetMemoryAttribute(Core::System& system, VAddr address, u64 size, u32 mas
     R_UNLESS(page_table.Contains(address, size), ResultInvalidCurrentMemory);
 
     // Set the memory attribute.
-    return page_table.SetMemoryAttribute(address, size, mask, attr);
+    R_RETURN(page_table.SetMemoryAttribute(address, size, mask, attr));
 }
 
 /// Maps a memory range into a different range.
@@ -156,7 +156,7 @@ Result MapMemory(Core::System& system, VAddr dst_addr, VAddr src_addr, u64 size)
         return result;
     }
 
-    return page_table.MapMemory(dst_addr, src_addr, size);
+    R_RETURN(page_table.MapMemory(dst_addr, src_addr, size));
 }
 
 /// Unmaps a region that was previously mapped with svcMapMemory
@@ -171,7 +171,7 @@ Result UnmapMemory(Core::System& system, VAddr dst_addr, VAddr src_addr, u64 siz
         return result;
     }
 
-    return page_table.UnmapMemory(dst_addr, src_addr, size);
+    R_RETURN(page_table.UnmapMemory(dst_addr, src_addr, size));
 }
 
 Result SetMemoryPermission64(Core::System& system, uint64_t address, uint64_t size,

src/core/hle/kernel/svc/svc_physical_memory.cpp

@@ -16,9 +16,7 @@ Result SetHeapSize(Core::System& system, VAddr* out_address, u64 size) {
     R_UNLESS(size < MainMemorySizeMax, ResultInvalidSize);
 
     // Set the heap size.
-    R_TRY(GetCurrentProcess(system.Kernel()).PageTable().SetHeapSize(out_address, size));
+    R_RETURN(GetCurrentProcess(system.Kernel()).PageTable().SetHeapSize(out_address, size));
-
-    return ResultSuccess;
 }
 
 /// Maps memory at a desired address
@@ -27,22 +25,22 @@ Result MapPhysicalMemory(Core::System& system, VAddr addr, u64 size) {
 
     if (!Common::Is4KBAligned(addr)) {
         LOG_ERROR(Kernel_SVC, "Address is not aligned to 4KB, 0x{:016X}", addr);
-        return ResultInvalidAddress;
+        R_THROW(ResultInvalidAddress);
     }
 
     if (!Common::Is4KBAligned(size)) {
         LOG_ERROR(Kernel_SVC, "Size is not aligned to 4KB, 0x{:X}", size);
-        return ResultInvalidSize;
+        R_THROW(ResultInvalidSize);
     }
 
     if (size == 0) {
         LOG_ERROR(Kernel_SVC, "Size is zero");
-        return ResultInvalidSize;
+        R_THROW(ResultInvalidSize);
     }
 
     if (!(addr < addr + size)) {
         LOG_ERROR(Kernel_SVC, "Size causes 64-bit overflow of address");
-        return ResultInvalidMemoryRegion;
+        R_THROW(ResultInvalidMemoryRegion);
     }
 
     KProcess* const current_process{GetCurrentProcessPointer(system.Kernel())};
@@ -50,24 +48,24 @@ Result MapPhysicalMemory(Core::System& system, VAddr addr, u64 size) {
 
     if (current_process->GetSystemResourceSize() == 0) {
         LOG_ERROR(Kernel_SVC, "System Resource Size is zero");
-        return ResultInvalidState;
+        R_THROW(ResultInvalidState);
     }
 
     if (!page_table.IsInsideAddressSpace(addr, size)) {
         LOG_ERROR(Kernel_SVC,
                   "Address is not within the address space, addr=0x{:016X}, size=0x{:016X}", addr,
                   size);
-        return ResultInvalidMemoryRegion;
+        R_THROW(ResultInvalidMemoryRegion);
     }
 
     if (page_table.IsOutsideAliasRegion(addr, size)) {
         LOG_ERROR(Kernel_SVC,
                   "Address is not within the alias region, addr=0x{:016X}, size=0x{:016X}", addr,
                   size);
-        return ResultInvalidMemoryRegion;
+        R_THROW(ResultInvalidMemoryRegion);
     }
 
-    return page_table.MapPhysicalMemory(addr, size);
+    R_RETURN(page_table.MapPhysicalMemory(addr, size));
 }
 
 /// Unmaps memory previously mapped via MapPhysicalMemory
@@ -76,22 +74,22 @@ Result UnmapPhysicalMemory(Core::System& system, VAddr addr, u64 size) {
 
     if (!Common::Is4KBAligned(addr)) {
         LOG_ERROR(Kernel_SVC, "Address is not aligned to 4KB, 0x{:016X}", addr);
-        return ResultInvalidAddress;
+        R_THROW(ResultInvalidAddress);
     }
 
     if (!Common::Is4KBAligned(size)) {
         LOG_ERROR(Kernel_SVC, "Size is not aligned to 4KB, 0x{:X}", size);
-        return ResultInvalidSize;
+        R_THROW(ResultInvalidSize);
     }
 
     if (size == 0) {
         LOG_ERROR(Kernel_SVC, "Size is zero");
-        return ResultInvalidSize;
+        R_THROW(ResultInvalidSize);
     }
 
     if (!(addr < addr + size)) {
         LOG_ERROR(Kernel_SVC, "Size causes 64-bit overflow of address");
-        return ResultInvalidMemoryRegion;
+        R_THROW(ResultInvalidMemoryRegion);
     }
 
     KProcess* const current_process{GetCurrentProcessPointer(system.Kernel())};
@@ -99,24 +97,24 @@ Result UnmapPhysicalMemory(Core::System& system, VAddr addr, u64 size) {
 
     if (current_process->GetSystemResourceSize() == 0) {
         LOG_ERROR(Kernel_SVC, "System Resource Size is zero");
-        return ResultInvalidState;
+        R_THROW(ResultInvalidState);
     }
 
     if (!page_table.IsInsideAddressSpace(addr, size)) {
         LOG_ERROR(Kernel_SVC,
                   "Address is not within the address space, addr=0x{:016X}, size=0x{:016X}", addr,
                   size);
-        return ResultInvalidMemoryRegion;
+        R_THROW(ResultInvalidMemoryRegion);
     }
 
     if (page_table.IsOutsideAliasRegion(addr, size)) {
         LOG_ERROR(Kernel_SVC,
                   "Address is not within the alias region, addr=0x{:016X}, size=0x{:016X}", addr,
                   size);
-        return ResultInvalidMemoryRegion;
+        R_THROW(ResultInvalidMemoryRegion);
     }
 
-    return page_table.UnmapPhysicalMemory(addr, size);
+    R_RETURN(page_table.UnmapPhysicalMemory(addr, size));
 }
 
 Result MapPhysicalMemoryUnsafe(Core::System& system, uint64_t address, uint64_t size) {

src/core/hle/kernel/svc/svc_process.cpp

@@ -47,7 +47,7 @@ Result GetProcessId(Core::System& system, u64* out_process_id, Handle handle) {
     // Get the process id.
     *out_process_id = process->GetId();
 
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 Result GetProcessList(Core::System& system, s32* out_num_processes, VAddr out_process_ids,
@@ -60,7 +60,7 @@ Result GetProcessList(Core::System& system, s32* out_num_processes, VAddr out_pr
         LOG_ERROR(Kernel_SVC,
                   "Supplied size outside [0, 0x0FFFFFFF] range. out_process_ids_size={}",
                   out_process_ids_size);
-        return ResultOutOfRange;
+        R_THROW(ResultOutOfRange);
     }
 
     auto& kernel = system.Kernel();
@@ -70,7 +70,7 @@ Result GetProcessList(Core::System& system, s32* out_num_processes, VAddr out_pr
                                         out_process_ids, total_copy_size)) {
         LOG_ERROR(Kernel_SVC, "Address range outside address space. begin=0x{:016X}, end=0x{:016X}",
                   out_process_ids, out_process_ids + total_copy_size);
-        return ResultInvalidCurrentMemory;
+        R_THROW(ResultInvalidCurrentMemory);
     }
 
     auto& memory = system.Memory();
@@ -85,7 +85,7 @@ Result GetProcessList(Core::System& system, s32* out_num_processes, VAddr out_pr
     }
 
     *out_num_processes = static_cast<u32>(num_processes);
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 Result GetProcessInfo(Core::System& system, s64* out, Handle process_handle,
@@ -97,17 +97,17 @@ Result GetProcessInfo(Core::System& system, s64* out, Handle process_handle,
     if (process.IsNull()) {
         LOG_ERROR(Kernel_SVC, "Process handle does not exist, process_handle=0x{:08X}",
                   process_handle);
-        return ResultInvalidHandle;
+        R_THROW(ResultInvalidHandle);
     }
 
     if (info_type != ProcessInfoType::ProcessState) {
         LOG_ERROR(Kernel_SVC, "Expected info_type to be ProcessState but got {} instead",
                   info_type);
-        return ResultInvalidEnumValue;
+        R_THROW(ResultInvalidEnumValue);
     }
 
     *out = static_cast<s64>(process->GetState());
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 Result CreateProcess(Core::System& system, Handle* out_handle, uint64_t parameters, uint64_t caps,

src/core/hle/kernel/svc/svc_process_memory.cpp

@@ -53,7 +53,7 @@ Result SetProcessMemoryPermission(Core::System& system, Handle process_handle, V
     R_UNLESS(page_table.Contains(address, size), ResultInvalidCurrentMemory);
 
     // Set the memory permission.
-    return page_table.SetProcessMemoryPermission(address, size, perm);
+    R_RETURN(page_table.SetProcessMemoryPermission(address, size, perm));
 }
 
 Result MapProcessMemory(Core::System& system, VAddr dst_address, Handle process_handle,
@@ -93,10 +93,8 @@ Result MapProcessMemory(Core::System& system, VAddr dst_address, Handle process_
         KMemoryAttribute::All, KMemoryAttribute::None));
 
     // Map the group.
-    R_TRY(dst_pt.MapPageGroup(dst_address, pg, KMemoryState::SharedCode,
+    R_RETURN(dst_pt.MapPageGroup(dst_address, pg, KMemoryState::SharedCode,
                                  KMemoryPermission::UserReadWrite));
-
-    return ResultSuccess;
 }
 
 Result UnmapProcessMemory(Core::System& system, VAddr dst_address, Handle process_handle,
@@ -129,9 +127,7 @@ Result UnmapProcessMemory(Core::System& system, VAddr dst_address, Handle proces
              ResultInvalidMemoryRegion);
 
     // Unmap the memory.
-    R_TRY(dst_pt.UnmapProcessMemory(dst_address, size, src_pt, src_address));
+    R_RETURN(dst_pt.UnmapProcessMemory(dst_address, size, src_pt, src_address));
-
-    return ResultSuccess;
 }
 
 Result MapProcessCodeMemory(Core::System& system, Handle process_handle, u64 dst_address,
@@ -144,18 +140,18 @@ Result MapProcessCodeMemory(Core::System& system, Handle process_handle, u64 dst
     if (!Common::Is4KBAligned(src_address)) {
         LOG_ERROR(Kernel_SVC, "src_address is not page-aligned (src_address=0x{:016X}).",
                   src_address);
-        return ResultInvalidAddress;
+        R_THROW(ResultInvalidAddress);
     }
 
     if (!Common::Is4KBAligned(dst_address)) {
         LOG_ERROR(Kernel_SVC, "dst_address is not page-aligned (dst_address=0x{:016X}).",
                   dst_address);
-        return ResultInvalidAddress;
+        R_THROW(ResultInvalidAddress);
     }
 
     if (size == 0 || !Common::Is4KBAligned(size)) {
         LOG_ERROR(Kernel_SVC, "Size is zero or not page-aligned (size=0x{:016X})", size);
-        return ResultInvalidSize;
+        R_THROW(ResultInvalidSize);
     }
 
     if (!IsValidAddressRange(dst_address, size)) {
@@ -163,7 +159,7 @@ Result MapProcessCodeMemory(Core::System& system, Handle process_handle, u64 dst
                   "Destination address range overflows the address space (dst_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   dst_address, size);
-        return ResultInvalidCurrentMemory;
+        R_THROW(ResultInvalidCurrentMemory);
     }
 
     if (!IsValidAddressRange(src_address, size)) {
@@ -171,7 +167,7 @@ Result MapProcessCodeMemory(Core::System& system, Handle process_handle, u64 dst
                   "Source address range overflows the address space (src_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   src_address, size);
-        return ResultInvalidCurrentMemory;
+        R_THROW(ResultInvalidCurrentMemory);
     }
 
     const auto& handle_table = GetCurrentProcess(system.Kernel()).GetHandleTable();
@@ -179,7 +175,7 @@ Result MapProcessCodeMemory(Core::System& system, Handle process_handle, u64 dst
     if (process.IsNull()) {
         LOG_ERROR(Kernel_SVC, "Invalid process handle specified (handle=0x{:08X}).",
                   process_handle);
-        return ResultInvalidHandle;
+        R_THROW(ResultInvalidHandle);
     }
 
     auto& page_table = process->PageTable();
@@ -188,7 +184,7 @@ Result MapProcessCodeMemory(Core::System& system, Handle process_handle, u64 dst
                   "Source address range is not within the address space (src_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   src_address, size);
-        return ResultInvalidCurrentMemory;
+        R_THROW(ResultInvalidCurrentMemory);
     }
 
     if (!page_table.IsInsideASLRRegion(dst_address, size)) {
@@ -196,10 +192,10 @@ Result MapProcessCodeMemory(Core::System& system, Handle process_handle, u64 dst
                   "Destination address range is not within the ASLR region (dst_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   dst_address, size);
-        return ResultInvalidMemoryRegion;
+        R_THROW(ResultInvalidMemoryRegion);
     }
 
-    return page_table.MapCodeMemory(dst_address, src_address, size);
+    R_RETURN(page_table.MapCodeMemory(dst_address, src_address, size));
 }
 
 Result UnmapProcessCodeMemory(Core::System& system, Handle process_handle, u64 dst_address,
@@ -212,18 +208,18 @@ Result UnmapProcessCodeMemory(Core::System& system, Handle process_handle, u64 d
     if (!Common::Is4KBAligned(dst_address)) {
         LOG_ERROR(Kernel_SVC, "dst_address is not page-aligned (dst_address=0x{:016X}).",
                   dst_address);
-        return ResultInvalidAddress;
+        R_THROW(ResultInvalidAddress);
     }
 
     if (!Common::Is4KBAligned(src_address)) {
         LOG_ERROR(Kernel_SVC, "src_address is not page-aligned (src_address=0x{:016X}).",
                   src_address);
-        return ResultInvalidAddress;
+        R_THROW(ResultInvalidAddress);
     }
 
     if (size == 0 || !Common::Is4KBAligned(size)) {
         LOG_ERROR(Kernel_SVC, "Size is zero or not page-aligned (size=0x{:016X}).", size);
-        return ResultInvalidSize;
+        R_THROW(ResultInvalidSize);
     }
 
     if (!IsValidAddressRange(dst_address, size)) {
@@ -231,7 +227,7 @@ Result UnmapProcessCodeMemory(Core::System& system, Handle process_handle, u64 d
                   "Destination address range overflows the address space (dst_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   dst_address, size);
-        return ResultInvalidCurrentMemory;
+        R_THROW(ResultInvalidCurrentMemory);
     }
 
     if (!IsValidAddressRange(src_address, size)) {
@@ -239,7 +235,7 @@ Result UnmapProcessCodeMemory(Core::System& system, Handle process_handle, u64 d
                   "Source address range overflows the address space (src_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   src_address, size);
-        return ResultInvalidCurrentMemory;
+        R_THROW(ResultInvalidCurrentMemory);
     }
 
     const auto& handle_table = GetCurrentProcess(system.Kernel()).GetHandleTable();
@@ -247,7 +243,7 @@ Result UnmapProcessCodeMemory(Core::System& system, Handle process_handle, u64 d
     if (process.IsNull()) {
         LOG_ERROR(Kernel_SVC, "Invalid process handle specified (handle=0x{:08X}).",
                   process_handle);
-        return ResultInvalidHandle;
+        R_THROW(ResultInvalidHandle);
     }
 
     auto& page_table = process->PageTable();
@@ -256,7 +252,7 @@ Result UnmapProcessCodeMemory(Core::System& system, Handle process_handle, u64 d
                   "Source address range is not within the address space (src_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   src_address, size);
-        return ResultInvalidCurrentMemory;
+        R_THROW(ResultInvalidCurrentMemory);
     }
 
     if (!page_table.IsInsideASLRRegion(dst_address, size)) {
@@ -264,11 +260,11 @@ Result UnmapProcessCodeMemory(Core::System& system, Handle process_handle, u64 d
                   "Destination address range is not within the ASLR region (dst_address=0x{:016X}, "
                   "size=0x{:016X}).",
                   dst_address, size);
-        return ResultInvalidMemoryRegion;
+        R_THROW(ResultInvalidMemoryRegion);
     }
 
-    return page_table.UnmapCodeMemory(dst_address, src_address, size,
+    R_RETURN(page_table.UnmapCodeMemory(dst_address, src_address, size,
-                                      KPageTable::ICacheInvalidationStrategy::InvalidateAll);
+                                        KPageTable::ICacheInvalidationStrategy::InvalidateAll));
 }
 
 Result SetProcessMemoryPermission64(Core::System& system, Handle process_handle, uint64_t address,

src/core/hle/kernel/svc/svc_query_memory.cpp

@@ -15,8 +15,8 @@ Result QueryMemory(Core::System& system, uint64_t out_memory_info, PageInfo* out
               out_memory_info, query_address);
 
     // Query memory is just QueryProcessMemory on the current process.
-    return QueryProcessMemory(system, out_memory_info, out_page_info, CurrentProcess,
+    R_RETURN(
-                              query_address);
+        QueryProcessMemory(system, out_memory_info, out_page_info, CurrentProcess, query_address));
 }
 
 Result QueryProcessMemory(Core::System& system, uint64_t out_memory_info, PageInfo* out_page_info,
@@ -27,7 +27,7 @@ Result QueryProcessMemory(Core::System& system, uint64_t out_memory_info, PageIn
     if (process.IsNull()) {
         LOG_ERROR(Kernel_SVC, "Process handle does not exist, process_handle=0x{:08X}",
                   process_handle);
-        return ResultInvalidHandle;
+        R_THROW(ResultInvalidHandle);
     }
 
     auto& memory{system.Memory()};

src/core/hle/kernel/svc/svc_resource_limit.cpp

@@ -27,9 +27,7 @@ Result CreateResourceLimit(Core::System& system, Handle* out_handle) {
     KResourceLimit::Register(kernel, resource_limit);
 
     // Add the limit to the handle table.
-    R_TRY(GetCurrentProcess(kernel).GetHandleTable().Add(out_handle, resource_limit));
+    R_RETURN(GetCurrentProcess(kernel).GetHandleTable().Add(out_handle, resource_limit));
-
-    return ResultSuccess;
 }
 
 Result GetResourceLimitLimitValue(Core::System& system, s64* out_limit_value,
@@ -49,7 +47,7 @@ Result GetResourceLimitLimitValue(Core::System& system, s64* out_limit_value,
     // Get the limit value.
     *out_limit_value = resource_limit->GetLimitValue(which);
 
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 Result GetResourceLimitCurrentValue(Core::System& system, s64* out_current_value,
@@ -69,7 +67,7 @@ Result GetResourceLimitCurrentValue(Core::System& system, s64* out_current_value
     // Get the current value.
     *out_current_value = resource_limit->GetCurrentValue(which);
 
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 Result SetResourceLimitLimitValue(Core::System& system, Handle resource_limit_handle,
@@ -87,9 +85,7 @@ Result SetResourceLimitLimitValue(Core::System& system, Handle resource_limit_ha
     R_UNLESS(resource_limit.IsNotNull(), ResultInvalidHandle);
 
     // Set the limit value.
-    R_TRY(resource_limit->SetLimitValue(which, limit_value));
+    R_RETURN(resource_limit->SetLimitValue(which, limit_value));
-
-    return ResultSuccess;
 }
 
 Result GetResourceLimitPeakValue(Core::System& system, int64_t* out_peak_value,

src/core/hle/kernel/svc/svc_session.cpp

@@ -25,7 +25,7 @@ Result CreateSession(Core::System& system, Handle* out_server, Handle* out_clien
     if (session_reservation.Succeeded()) {
         session = T::Create(system.Kernel());
     } else {
-        return ResultLimitReached;
+        R_THROW(ResultLimitReached);
 
         // // We couldn't reserve a session. Check that we support dynamically expanding the
         // // resource limit.
@@ -77,15 +77,13 @@ Result CreateSession(Core::System& system, Handle* out_server, Handle* out_clien
     // Add the server session to the handle table.
     R_TRY(handle_table.Add(out_server, &session->GetServerSession()));
 
-    // Add the client session to the handle table.
-    const auto result = handle_table.Add(out_client, &session->GetClientSession());
-
-    if (!R_SUCCEEDED(result)) {
     // Ensure that we maintain a clean handle state on exit.
+    ON_RESULT_FAILURE {
         handle_table.Remove(*out_server);
-    }
+    };
 
-    return result;
+    // Add the client session to the handle table.
+    R_RETURN(handle_table.Add(out_client, &session->GetClientSession()));
 }
 
 } // namespace
@@ -94,9 +92,9 @@ Result CreateSession(Core::System& system, Handle* out_server, Handle* out_clien
                      u64 name) {
     if (is_light) {
         // return CreateSession<KLightSession>(system, out_server, out_client, name);
-        return ResultNotImplemented;
+        R_THROW(ResultNotImplemented);
     } else {
-        return CreateSession<KSession>(system, out_server, out_client, name);
+        R_RETURN(CreateSession<KSession>(system, out_server, out_client, name));
     }
 }
 

src/core/hle/kernel/svc/svc_shared_memory.cpp

@@ -56,15 +56,12 @@ Result MapSharedMemory(Core::System& system, Handle shmem_handle, VAddr address,
     R_TRY(process.AddSharedMemory(shmem.GetPointerUnsafe(), address, size));
 
     // Ensure that we clean up the shared memory if we fail to map it.
-    auto guard =
+    ON_RESULT_FAILURE {
-        SCOPE_GUARD({ process.RemoveSharedMemory(shmem.GetPointerUnsafe(), address, size); });
+        process.RemoveSharedMemory(shmem.GetPointerUnsafe(), address, size);
+    };
 
     // Map the shared memory.
-    R_TRY(shmem->Map(process, address, size, map_perm));
+    R_RETURN(shmem->Map(process, address, size, map_perm));
-
-    // We succeeded.
-    guard.Cancel();
-    return ResultSuccess;
 }
 
 Result UnmapSharedMemory(Core::System& system, Handle shmem_handle, VAddr address, u64 size) {
@@ -91,7 +88,7 @@ Result UnmapSharedMemory(Core::System& system, Handle shmem_handle, VAddr addres
     // Remove the shared memory from the process.
     process.RemoveSharedMemory(shmem.GetPointerUnsafe(), address, size);
 
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 Result CreateSharedMemory(Core::System& system, Handle* out_handle, uint64_t size,

src/core/hle/kernel/svc/svc_synchronization.cpp

@@ -17,7 +17,7 @@ Result CloseHandle(Core::System& system, Handle handle) {
     R_UNLESS(GetCurrentProcess(system.Kernel()).GetHandleTable().Remove(handle),
              ResultInvalidHandle);
 
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 /// Clears the signaled state of an event or process.
@@ -31,7 +31,7 @@ Result ResetSignal(Core::System& system, Handle handle) {
     {
         KScopedAutoObject readable_event = handle_table.GetObject<KReadableEvent>(handle);
         if (readable_event.IsNotNull()) {
-            return readable_event->Reset();
+            R_RETURN(readable_event->Reset());
         }
     }
 
@@ -39,13 +39,11 @@ Result ResetSignal(Core::System& system, Handle handle) {
     {
         KScopedAutoObject process = handle_table.GetObject<KProcess>(handle);
         if (process.IsNotNull()) {
-            return process->Reset();
+            R_RETURN(process->Reset());
         }
     }
 
-    LOG_ERROR(Kernel_SVC, "invalid handle (0x{:08X})", handle);
+    R_THROW(ResultInvalidHandle);
-
-    return ResultInvalidHandle;
 }
 
 static Result WaitSynchronization(Core::System& system, int32_t* out_index, const Handle* handles,
@@ -109,7 +107,7 @@ Result CancelSynchronization(Core::System& system, Handle handle) {
 
     // Cancel the thread's wait.
     thread->WaitCancel();
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 void SynchronizePreemptionState(Core::System& system) {

src/core/hle/kernel/svc/svc_thread.cpp

@@ -34,39 +34,22 @@ Result CreateThread(Core::System& system, Handle* out_handle, VAddr entry_point,
     }
 
     // Validate arguments.
-    if (!IsValidVirtualCoreId(core_id)) {
+    R_UNLESS(IsValidVirtualCoreId(core_id), ResultInvalidCoreId);
-        LOG_ERROR(Kernel_SVC, "Invalid Core ID specified (id={})", core_id);
+    R_UNLESS(((1ull << core_id) & process.GetCoreMask()) != 0, ResultInvalidCoreId);
-        return ResultInvalidCoreId;
-    }
-    if (((1ULL << core_id) & process.GetCoreMask()) == 0) {
-        LOG_ERROR(Kernel_SVC, "Core ID doesn't fall within allowable cores (id={})", core_id);
-        return ResultInvalidCoreId;
-    }
 
-    if (HighestThreadPriority > priority || priority > LowestThreadPriority) {
+    R_UNLESS(HighestThreadPriority <= priority && priority <= LowestThreadPriority,
-        LOG_ERROR(Kernel_SVC, "Invalid priority specified (priority={})", priority);
+             ResultInvalidPriority);
-        return ResultInvalidPriority;
+    R_UNLESS(process.CheckThreadPriority(priority), ResultInvalidPriority);
-    }
-    if (!process.CheckThreadPriority(priority)) {
-        LOG_ERROR(Kernel_SVC, "Invalid allowable thread priority (priority={})", priority);
-        return ResultInvalidPriority;
-    }
 
     // Reserve a new thread from the process resource limit (waiting up to 100ms).
     KScopedResourceReservation thread_reservation(&process, LimitableResource::ThreadCountMax, 1,
                                                   system.CoreTiming().GetGlobalTimeNs().count() +
                                                       100000000);
-    if (!thread_reservation.Succeeded()) {
+    R_UNLESS(thread_reservation.Succeeded(), ResultLimitReached);
-        LOG_ERROR(Kernel_SVC, "Could not reserve a new thread");
-        return ResultLimitReached;
-    }
 
     // Create the thread.
     KThread* thread = KThread::Create(kernel);
-    if (!thread) {
+    R_UNLESS(thread != nullptr, ResultOutOfResource)
-        LOG_ERROR(Kernel_SVC, "Unable to create new threads. Thread creation limit reached.");
-        return ResultOutOfResource;
-    }
     SCOPE_EXIT({ thread->Close(); });
 
     // Initialize the thread.
@@ -89,9 +72,7 @@ Result CreateThread(Core::System& system, Handle* out_handle, VAddr entry_point,
     KThread::Register(kernel, thread);
 
     // Add the thread to the handle table.
-    R_TRY(process.GetHandleTable().Add(out_handle, thread));
+    R_RETURN(process.GetHandleTable().Add(out_handle, thread));
-
-    return ResultSuccess;
 }
 
 /// Starts the thread for the provided handle
@@ -110,7 +91,7 @@ Result StartThread(Core::System& system, Handle thread_handle) {
     thread->Open();
     system.Kernel().RegisterInUseObject(thread.GetPointerUnsafe());
 
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 /// Called when a thread exits
@@ -202,10 +183,8 @@ Result GetThreadContext3(Core::System& system, VAddr out_context, Handle thread_
         // Copy the thread context to user space.
         system.Memory().WriteBlock(out_context, context.data(), context.size());
 
-        return ResultSuccess;
+        R_SUCCEED();
     }
-
-    return ResultSuccess;
 }
 
 /// Gets the priority for the specified thread
@@ -219,7 +198,7 @@ Result GetThreadPriority(Core::System& system, s32* out_priority, Handle handle)
 
     // Get the thread's priority.
     *out_priority = thread->GetPriority();
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 /// Sets the priority for the specified thread
@@ -238,7 +217,7 @@ Result SetThreadPriority(Core::System& system, Handle thread_handle, s32 priorit
 
     // Set the thread priority.
     thread->SetBasePriority(priority);
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 Result GetThreadList(Core::System& system, s32* out_num_threads, VAddr out_thread_ids,
@@ -253,7 +232,7 @@ Result GetThreadList(Core::System& system, s32* out_num_threads, VAddr out_threa
     if ((out_thread_ids_size & 0xF0000000) != 0) {
         LOG_ERROR(Kernel_SVC, "Supplied size outside [0, 0x0FFFFFFF] range. size={}",
                   out_thread_ids_size);
-        return ResultOutOfRange;
+        R_THROW(ResultOutOfRange);
     }
 
     auto* const current_process = GetCurrentProcessPointer(system.Kernel());
@@ -263,7 +242,7 @@ Result GetThreadList(Core::System& system, s32* out_num_threads, VAddr out_threa
         !current_process->PageTable().IsInsideAddressSpace(out_thread_ids, total_copy_size)) {
         LOG_ERROR(Kernel_SVC, "Address range outside address space. begin=0x{:016X}, end=0x{:016X}",
                   out_thread_ids, out_thread_ids + total_copy_size);
-        return ResultInvalidCurrentMemory;
+        R_THROW(ResultInvalidCurrentMemory);
     }
 
     auto& memory = system.Memory();
@@ -278,7 +257,7 @@ Result GetThreadList(Core::System& system, s32* out_num_threads, VAddr out_threa
     }
 
     *out_num_threads = static_cast<u32>(num_threads);
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 Result GetThreadCoreMask(Core::System& system, s32* out_core_id, u64* out_affinity_mask,
@@ -291,9 +270,7 @@ Result GetThreadCoreMask(Core::System& system, s32* out_core_id, u64* out_affini
     R_UNLESS(thread.IsNotNull(), ResultInvalidHandle);
 
     // Get the core mask.
-    R_TRY(thread->GetCoreMask(out_core_id, out_affinity_mask));
+    R_RETURN(thread->GetCoreMask(out_core_id, out_affinity_mask));
-
-    return ResultSuccess;
 }
 
 Result SetThreadCoreMask(Core::System& system, Handle thread_handle, s32 core_id,
@@ -323,9 +300,7 @@ Result SetThreadCoreMask(Core::System& system, Handle thread_handle, s32 core_id
     R_UNLESS(thread.IsNotNull(), ResultInvalidHandle);
 
     // Set the core mask.
-    R_TRY(thread->SetCoreMask(core_id, affinity_mask));
+    R_RETURN(thread->SetCoreMask(core_id, affinity_mask));
-
-    return ResultSuccess;
 }
 
 /// Get the ID for the specified thread.
@@ -337,7 +312,7 @@ Result GetThreadId(Core::System& system, u64* out_thread_id, Handle thread_handl
 
     // Get the thread's id.
     *out_thread_id = thread->GetId();
-    return ResultSuccess;
+    R_SUCCEED();
 }
 
 Result CreateThread64(Core::System& system, Handle* out_handle, uint64_t func, uint64_t arg,

src/core/hle/kernel/svc/svc_transfer_memory.cpp

@@ -67,9 +67,7 @@ Result CreateTransferMemory(Core::System& system, Handle* out, VAddr address, u6
     KTransferMemory::Register(kernel, trmem);
 
     // Add the transfer memory to the handle table.
-    R_TRY(handle_table.Add(out, trmem));
+    R_RETURN(handle_table.Add(out, trmem));
-
-    return ResultSuccess;
 }
 
 Result MapTransferMemory(Core::System& system, Handle trmem_handle, uint64_t address, uint64_t size,