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-rw-r--r--src/core/arm/arm_interface.cpp32
-rw-r--r--src/core/arm/arm_interface.h1
-rw-r--r--src/core/arm/dynarmic/arm_dynarmic_32.cpp72
-rw-r--r--src/core/arm/dynarmic/arm_dynarmic_32.h2
-rw-r--r--src/core/arm/dynarmic/arm_dynarmic_64.cpp45
-rw-r--r--src/core/arm/dynarmic/arm_dynarmic_64.h2
6 files changed, 115 insertions, 39 deletions
diff --git a/src/core/arm/arm_interface.cpp b/src/core/arm/arm_interface.cpp
index 8e095cdcd..cef79b245 100644
--- a/src/core/arm/arm_interface.cpp
+++ b/src/core/arm/arm_interface.cpp
@@ -1,6 +1,10 @@
// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef _MSC_VER
+#include <cxxabi.h>
+#endif
+
#include <map>
#include <optional>
#include "common/bit_field.h"
@@ -68,8 +72,19 @@ void ARM_Interface::SymbolicateBacktrace(Core::System& system, std::vector<Backt
if (symbol_set != symbols.end()) {
const auto symbol = Symbols::GetSymbolName(symbol_set->second, entry.offset);
if (symbol.has_value()) {
+#ifdef _MSC_VER
// TODO(DarkLordZach): Add demangling of symbol names.
entry.name = *symbol;
+#else
+ int status{-1};
+ char* demangled{abi::__cxa_demangle(symbol->c_str(), nullptr, nullptr, &status)};
+ if (status == 0 && demangled != nullptr) {
+ entry.name = demangled;
+ std::free(demangled);
+ } else {
+ entry.name = *symbol;
+ }
+#endif
}
}
}
@@ -119,16 +134,23 @@ void ARM_Interface::Run() {
}
system.ExitDynarmicProfile();
- // Notify the debugger and go to sleep if a breakpoint was hit.
- if (Has(hr, breakpoint)) {
+ // Notify the debugger and go to sleep if a breakpoint was hit,
+ // or if the thread is unable to continue for any reason.
+ if (Has(hr, breakpoint) || Has(hr, no_execute)) {
RewindBreakpointInstruction();
- system.GetDebugger().NotifyThreadStopped(current_thread);
- current_thread->RequestSuspend(SuspendType::Debug);
+ if (system.DebuggerEnabled()) {
+ system.GetDebugger().NotifyThreadStopped(current_thread);
+ }
+ current_thread->RequestSuspend(Kernel::SuspendType::Debug);
break;
}
+
+ // Notify the debugger and go to sleep if a watchpoint was hit.
if (Has(hr, watchpoint)) {
RewindBreakpointInstruction();
- system.GetDebugger().NotifyThreadWatchpoint(current_thread, *HaltedWatchpoint());
+ if (system.DebuggerEnabled()) {
+ system.GetDebugger().NotifyThreadWatchpoint(current_thread, *HaltedWatchpoint());
+ }
current_thread->RequestSuspend(SuspendType::Debug);
break;
}
diff --git a/src/core/arm/arm_interface.h b/src/core/arm/arm_interface.h
index 4e431e27a..8a066ed91 100644
--- a/src/core/arm/arm_interface.h
+++ b/src/core/arm/arm_interface.h
@@ -204,6 +204,7 @@ public:
static constexpr Dynarmic::HaltReason svc_call = Dynarmic::HaltReason::UserDefined3;
static constexpr Dynarmic::HaltReason breakpoint = Dynarmic::HaltReason::UserDefined4;
static constexpr Dynarmic::HaltReason watchpoint = Dynarmic::HaltReason::UserDefined5;
+ static constexpr Dynarmic::HaltReason no_execute = Dynarmic::HaltReason::UserDefined6;
protected:
/// System context that this ARM interface is running under.
diff --git a/src/core/arm/dynarmic/arm_dynarmic_32.cpp b/src/core/arm/dynarmic/arm_dynarmic_32.cpp
index 8c90c8be0..1be5fe1c1 100644
--- a/src/core/arm/dynarmic/arm_dynarmic_32.cpp
+++ b/src/core/arm/dynarmic/arm_dynarmic_32.cpp
@@ -48,6 +48,12 @@ public:
CheckMemoryAccess(vaddr, 8, Kernel::DebugWatchpointType::Read);
return memory.Read64(vaddr);
}
+ std::optional<u32> MemoryReadCode(u32 vaddr) override {
+ if (!memory.IsValidVirtualAddressRange(vaddr, sizeof(u32))) {
+ return std::nullopt;
+ }
+ return MemoryRead32(vaddr);
+ }
void MemoryWrite8(u32 vaddr, u8 value) override {
if (CheckMemoryAccess(vaddr, 1, Kernel::DebugWatchpointType::Write)) {
@@ -89,21 +95,28 @@ public:
void InterpreterFallback(u32 pc, std::size_t num_instructions) override {
parent.LogBacktrace();
- UNIMPLEMENTED_MSG("This should never happen, pc = {:08X}, code = {:08X}", pc,
- MemoryReadCode(pc));
+ LOG_ERROR(Core_ARM,
+ "Unimplemented instruction @ 0x{:X} for {} instructions (instr = {:08X})", pc,
+ num_instructions, MemoryRead32(pc));
}
void ExceptionRaised(u32 pc, Dynarmic::A32::Exception exception) override {
- if (debugger_enabled) {
- parent.SaveContext(parent.breakpoint_context);
- parent.jit.load()->HaltExecution(ARM_Interface::breakpoint);
+ switch (exception) {
+ case Dynarmic::A32::Exception::NoExecuteFault:
+ LOG_CRITICAL(Core_ARM, "Cannot execute instruction at unmapped address {:#08x}", pc);
+ ReturnException(pc, ARM_Interface::no_execute);
return;
- }
+ default:
+ if (debugger_enabled) {
+ ReturnException(pc, ARM_Interface::breakpoint);
+ return;
+ }
- parent.LogBacktrace();
- LOG_CRITICAL(Core_ARM,
- "ExceptionRaised(exception = {}, pc = {:08X}, code = {:08X}, thumb = {})",
- exception, pc, MemoryReadCode(pc), parent.IsInThumbMode());
+ parent.LogBacktrace();
+ LOG_CRITICAL(Core_ARM,
+ "ExceptionRaised(exception = {}, pc = {:08X}, code = {:08X}, thumb = {})",
+ exception, pc, MemoryRead32(pc), parent.IsInThumbMode());
+ }
}
void CallSVC(u32 swi) override {
@@ -141,15 +154,20 @@ public:
const auto match{parent.MatchingWatchpoint(addr, size, type)};
if (match) {
- parent.SaveContext(parent.breakpoint_context);
- parent.jit.load()->HaltExecution(ARM_Interface::watchpoint);
parent.halted_watchpoint = match;
+ ReturnException(parent.jit.load()->Regs()[15], ARM_Interface::watchpoint);
return false;
}
return true;
}
+ void ReturnException(u32 pc, Dynarmic::HaltReason hr) {
+ parent.SaveContext(parent.breakpoint_context);
+ parent.breakpoint_context.cpu_registers[15] = pc;
+ parent.jit.load()->HaltExecution(hr);
+ }
+
ARM_Dynarmic_32& parent;
Core::Memory::Memory& memory;
std::size_t num_interpreted_instructions{};
@@ -409,18 +427,38 @@ void ARM_Dynarmic_32::PageTableChanged(Common::PageTable& page_table,
}
std::vector<ARM_Interface::BacktraceEntry> ARM_Dynarmic_32::GetBacktrace(Core::System& system,
- u64 sp, u64 lr) {
- // No way to get accurate stack traces in A32 yet
- return {};
+ u64 fp, u64 lr, u64 pc) {
+ std::vector<BacktraceEntry> out;
+ auto& memory = system.Memory();
+
+ out.push_back({"", 0, pc, 0, ""});
+
+ // fp (= r11) points to the last frame record.
+ // Frame records are two words long:
+ // fp+0 : pointer to previous frame record
+ // fp+4 : value of lr for frame
+ while (true) {
+ out.push_back({"", 0, lr, 0, ""});
+ if (!fp || (fp % 4 != 0) || !memory.IsValidVirtualAddressRange(fp, 8)) {
+ break;
+ }
+ lr = memory.Read32(fp + 4);
+ fp = memory.Read32(fp);
+ }
+
+ SymbolicateBacktrace(system, out);
+
+ return out;
}
std::vector<ARM_Interface::BacktraceEntry> ARM_Dynarmic_32::GetBacktraceFromContext(
System& system, const ThreadContext32& ctx) {
- return GetBacktrace(system, ctx.cpu_registers[13], ctx.cpu_registers[14]);
+ const auto& reg = ctx.cpu_registers;
+ return GetBacktrace(system, reg[11], reg[14], reg[15]);
}
std::vector<ARM_Interface::BacktraceEntry> ARM_Dynarmic_32::GetBacktrace() const {
- return GetBacktrace(system, GetReg(13), GetReg(14));
+ return GetBacktrace(system, GetReg(11), GetReg(14), GetReg(15));
}
} // namespace Core
diff --git a/src/core/arm/dynarmic/arm_dynarmic_32.h b/src/core/arm/dynarmic/arm_dynarmic_32.h
index fcbe24f0c..346e9abf8 100644
--- a/src/core/arm/dynarmic/arm_dynarmic_32.h
+++ b/src/core/arm/dynarmic/arm_dynarmic_32.h
@@ -78,7 +78,7 @@ protected:
private:
std::shared_ptr<Dynarmic::A32::Jit> MakeJit(Common::PageTable* page_table) const;
- static std::vector<BacktraceEntry> GetBacktrace(Core::System& system, u64 sp, u64 lr);
+ static std::vector<BacktraceEntry> GetBacktrace(Core::System& system, u64 fp, u64 lr, u64 pc);
using JitCacheKey = std::pair<Common::PageTable*, std::size_t>;
using JitCacheType =
diff --git a/src/core/arm/dynarmic/arm_dynarmic_64.cpp b/src/core/arm/dynarmic/arm_dynarmic_64.cpp
index 4370ca294..c437f24b8 100644
--- a/src/core/arm/dynarmic/arm_dynarmic_64.cpp
+++ b/src/core/arm/dynarmic/arm_dynarmic_64.cpp
@@ -52,6 +52,12 @@ public:
CheckMemoryAccess(vaddr, 16, Kernel::DebugWatchpointType::Read);
return {memory.Read64(vaddr), memory.Read64(vaddr + 8)};
}
+ std::optional<u32> MemoryReadCode(u64 vaddr) override {
+ if (!memory.IsValidVirtualAddressRange(vaddr, sizeof(u32))) {
+ return std::nullopt;
+ }
+ return MemoryRead32(vaddr);
+ }
void MemoryWrite8(u64 vaddr, u8 value) override {
if (CheckMemoryAccess(vaddr, 1, Kernel::DebugWatchpointType::Write)) {
@@ -105,7 +111,7 @@ public:
parent.LogBacktrace();
LOG_ERROR(Core_ARM,
"Unimplemented instruction @ 0x{:X} for {} instructions (instr = {:08X})", pc,
- num_instructions, MemoryReadCode(pc));
+ num_instructions, MemoryRead32(pc));
}
void InstructionCacheOperationRaised(Dynarmic::A64::InstructionCacheOperation op,
@@ -138,16 +144,19 @@ public:
case Dynarmic::A64::Exception::SendEventLocal:
case Dynarmic::A64::Exception::Yield:
return;
+ case Dynarmic::A64::Exception::NoExecuteFault:
+ LOG_CRITICAL(Core_ARM, "Cannot execute instruction at unmapped address {:#016x}", pc);
+ ReturnException(pc, ARM_Interface::no_execute);
+ return;
default:
if (debugger_enabled) {
- parent.SaveContext(parent.breakpoint_context);
- parent.jit.load()->HaltExecution(ARM_Interface::breakpoint);
+ ReturnException(pc, ARM_Interface::breakpoint);
return;
}
parent.LogBacktrace();
- ASSERT_MSG(false, "ExceptionRaised(exception = {}, pc = {:08X}, code = {:08X})",
- static_cast<std::size_t>(exception), pc, MemoryReadCode(pc));
+ LOG_CRITICAL(Core_ARM, "ExceptionRaised(exception = {}, pc = {:08X}, code = {:08X})",
+ static_cast<std::size_t>(exception), pc, MemoryRead32(pc));
}
}
@@ -188,15 +197,20 @@ public:
const auto match{parent.MatchingWatchpoint(addr, size, type)};
if (match) {
- parent.SaveContext(parent.breakpoint_context);
- parent.jit.load()->HaltExecution(ARM_Interface::watchpoint);
parent.halted_watchpoint = match;
+ ReturnException(parent.jit.load()->GetPC(), ARM_Interface::watchpoint);
return false;
}
return true;
}
+ void ReturnException(u64 pc, Dynarmic::HaltReason hr) {
+ parent.SaveContext(parent.breakpoint_context);
+ parent.breakpoint_context.pc = pc;
+ parent.jit.load()->HaltExecution(hr);
+ }
+
ARM_Dynarmic_64& parent;
Core::Memory::Memory& memory;
u64 tpidrro_el0 = 0;
@@ -480,22 +494,22 @@ void ARM_Dynarmic_64::PageTableChanged(Common::PageTable& page_table,
}
std::vector<ARM_Interface::BacktraceEntry> ARM_Dynarmic_64::GetBacktrace(Core::System& system,
- u64 fp, u64 lr) {
+ u64 fp, u64 lr, u64 pc) {
std::vector<BacktraceEntry> out;
auto& memory = system.Memory();
- // fp (= r29) points to the last frame record.
- // Note that this is the frame record for the *previous* frame, not the current one.
- // Note we need to subtract 4 from our last read to get the proper address
+ out.push_back({"", 0, pc, 0, ""});
+
+ // fp (= x29) points to the previous frame record.
// Frame records are two words long:
// fp+0 : pointer to previous frame record
// fp+8 : value of lr for frame
while (true) {
out.push_back({"", 0, lr, 0, ""});
- if (!fp) {
+ if (!fp || (fp % 4 != 0) || !memory.IsValidVirtualAddressRange(fp, 16)) {
break;
}
- lr = memory.Read64(fp + 8) - 4;
+ lr = memory.Read64(fp + 8);
fp = memory.Read64(fp);
}
@@ -506,11 +520,12 @@ std::vector<ARM_Interface::BacktraceEntry> ARM_Dynarmic_64::GetBacktrace(Core::S
std::vector<ARM_Interface::BacktraceEntry> ARM_Dynarmic_64::GetBacktraceFromContext(
System& system, const ThreadContext64& ctx) {
- return GetBacktrace(system, ctx.cpu_registers[29], ctx.cpu_registers[30]);
+ const auto& reg = ctx.cpu_registers;
+ return GetBacktrace(system, reg[29], reg[30], ctx.pc);
}
std::vector<ARM_Interface::BacktraceEntry> ARM_Dynarmic_64::GetBacktrace() const {
- return GetBacktrace(system, GetReg(29), GetReg(30));
+ return GetBacktrace(system, GetReg(29), GetReg(30), GetPC());
}
} // namespace Core
diff --git a/src/core/arm/dynarmic/arm_dynarmic_64.h b/src/core/arm/dynarmic/arm_dynarmic_64.h
index 71dbaac5e..c77a83ad7 100644
--- a/src/core/arm/dynarmic/arm_dynarmic_64.h
+++ b/src/core/arm/dynarmic/arm_dynarmic_64.h
@@ -73,7 +73,7 @@ private:
std::shared_ptr<Dynarmic::A64::Jit> MakeJit(Common::PageTable* page_table,
std::size_t address_space_bits) const;
- static std::vector<BacktraceEntry> GetBacktrace(Core::System& system, u64 fp, u64 lr);
+ static std::vector<BacktraceEntry> GetBacktrace(Core::System& system, u64 fp, u64 lr, u64 pc);
using JitCacheKey = std::pair<Common::PageTable*, std::size_t>;
using JitCacheType =
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-09 17:46:19 +0000