diff options
Diffstat (limited to 'src/core/hle/kernel/svc/svc_exception.cpp')
-rw-r--r-- | src/core/hle/kernel/svc/svc_exception.cpp | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/src/core/hle/kernel/svc/svc_exception.cpp b/src/core/hle/kernel/svc/svc_exception.cpp new file mode 100644 index 000000000..c2782908d --- /dev/null +++ b/src/core/hle/kernel/svc/svc_exception.cpp @@ -0,0 +1,137 @@ +// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "core/core.h" +#include "core/debugger/debugger.h" +#include "core/hle/kernel/k_thread.h" +#include "core/hle/kernel/svc.h" +#include "core/hle/kernel/svc_types.h" +#include "core/memory.h" +#include "core/reporter.h" + +namespace Kernel::Svc { + +/// Break program execution +void Break(Core::System& system, BreakReason reason, u64 info1, u64 info2) { + BreakReason break_reason = + reason & static_cast<BreakReason>(~BreakReason::NotificationOnlyFlag); + bool notification_only = True(reason & BreakReason::NotificationOnlyFlag); + + bool has_dumped_buffer{}; + std::vector<u8> debug_buffer; + + const auto handle_debug_buffer = [&](VAddr addr, u64 sz) { + if (sz == 0 || addr == 0 || has_dumped_buffer) { + return; + } + + auto& memory = system.Memory(); + + // This typically is an error code so we're going to assume this is the case + if (sz == sizeof(u32)) { + LOG_CRITICAL(Debug_Emulated, "debug_buffer_err_code={:X}", memory.Read32(addr)); + } else { + // We don't know what's in here so we'll hexdump it + debug_buffer.resize(sz); + memory.ReadBlock(addr, debug_buffer.data(), sz); + std::string hexdump; + for (std::size_t i = 0; i < debug_buffer.size(); i++) { + hexdump += fmt::format("{:02X} ", debug_buffer[i]); + if (i != 0 && i % 16 == 0) { + hexdump += '\n'; + } + } + LOG_CRITICAL(Debug_Emulated, "debug_buffer=\n{}", hexdump); + } + has_dumped_buffer = true; + }; + switch (break_reason) { + case BreakReason::Panic: + LOG_CRITICAL(Debug_Emulated, "Userspace PANIC! info1=0x{:016X}, info2=0x{:016X}", info1, + info2); + handle_debug_buffer(info1, info2); + break; + case BreakReason::Assert: + LOG_CRITICAL(Debug_Emulated, "Userspace Assertion failed! info1=0x{:016X}, info2=0x{:016X}", + info1, info2); + handle_debug_buffer(info1, info2); + break; + case BreakReason::User: + LOG_WARNING(Debug_Emulated, "Userspace Break! 0x{:016X} with size 0x{:016X}", info1, info2); + handle_debug_buffer(info1, info2); + break; + case BreakReason::PreLoadDll: + LOG_INFO(Debug_Emulated, + "Userspace Attempting to load an NRO at 0x{:016X} with size 0x{:016X}", info1, + info2); + break; + case BreakReason::PostLoadDll: + LOG_INFO(Debug_Emulated, "Userspace Loaded an NRO at 0x{:016X} with size 0x{:016X}", info1, + info2); + break; + case BreakReason::PreUnloadDll: + LOG_INFO(Debug_Emulated, + "Userspace Attempting to unload an NRO at 0x{:016X} with size 0x{:016X}", info1, + info2); + break; + case BreakReason::PostUnloadDll: + LOG_INFO(Debug_Emulated, "Userspace Unloaded an NRO at 0x{:016X} with size 0x{:016X}", + info1, info2); + break; + case BreakReason::CppException: + LOG_CRITICAL(Debug_Emulated, "Signalling debugger. Uncaught C++ exception encountered."); + break; + default: + LOG_WARNING( + Debug_Emulated, + "Signalling debugger, Unknown break reason {:#X}, info1=0x{:016X}, info2=0x{:016X}", + reason, info1, info2); + handle_debug_buffer(info1, info2); + break; + } + + system.GetReporter().SaveSvcBreakReport( + static_cast<u32>(reason), notification_only, info1, info2, + has_dumped_buffer ? std::make_optional(debug_buffer) : std::nullopt); + + if (!notification_only) { + LOG_CRITICAL( + Debug_Emulated, + "Emulated program broke execution! reason=0x{:016X}, info1=0x{:016X}, info2=0x{:016X}", + reason, info1, info2); + + handle_debug_buffer(info1, info2); + + auto* const current_thread = GetCurrentThreadPointer(system.Kernel()); + const auto thread_processor_id = current_thread->GetActiveCore(); + system.ArmInterface(static_cast<std::size_t>(thread_processor_id)).LogBacktrace(); + } + + if (system.DebuggerEnabled()) { + auto* thread = system.Kernel().GetCurrentEmuThread(); + system.GetDebugger().NotifyThreadStopped(thread); + thread->RequestSuspend(Kernel::SuspendType::Debug); + } +} + +void ReturnFromException(Core::System& system, Result result) { + UNIMPLEMENTED(); +} + +void Break64(Core::System& system, BreakReason break_reason, uint64_t arg, uint64_t size) { + Break(system, break_reason, arg, size); +} + +void Break64From32(Core::System& system, BreakReason break_reason, uint32_t arg, uint32_t size) { + Break(system, break_reason, arg, size); +} + +void ReturnFromException64(Core::System& system, Result result) { + ReturnFromException(system, result); +} + +void ReturnFromException64From32(Core::System& system, Result result) { + ReturnFromException(system, result); +} + +} // namespace Kernel::Svc |