ARM/WaitTree: Better track the CallStack for each thread.
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@ -139,6 +139,63 @@ std::optional<std::string> GetSymbolName(const Symbols& symbols, VAddr func_addr
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constexpr u64 SEGMENT_BASE = 0x7100000000ull;
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std::vector<ARM_Interface::BacktraceEntry> ARM_Interface::GetBacktraceFromContext(
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System& system, const ThreadContext64& ctx) {
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std::vector<BacktraceEntry> out;
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auto& memory = system.Memory();
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auto fp = ctx.cpu_registers[29];
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auto lr = ctx.cpu_registers[30];
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while (true) {
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out.push_back({"", 0, lr, 0});
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if (!fp) {
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break;
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}
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lr = memory.Read64(fp + 8) - 4;
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fp = memory.Read64(fp);
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}
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std::map<VAddr, std::string> modules;
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auto& loader{system.GetAppLoader()};
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if (loader.ReadNSOModules(modules) != Loader::ResultStatus::Success) {
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return {};
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}
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std::map<std::string, Symbols> symbols;
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for (const auto& module : modules) {
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symbols.insert_or_assign(module.second, GetSymbols(module.first, memory));
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}
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for (auto& entry : out) {
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VAddr base = 0;
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for (auto iter = modules.rbegin(); iter != modules.rend(); ++iter) {
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const auto& module{*iter};
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if (entry.original_address >= module.first) {
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entry.module = module.second;
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base = module.first;
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break;
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}
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}
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entry.offset = entry.original_address - base;
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entry.address = SEGMENT_BASE + entry.offset;
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if (entry.module.empty())
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entry.module = "unknown";
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const auto symbol_set = symbols.find(entry.module);
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if (symbol_set != symbols.end()) {
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const auto symbol = GetSymbolName(symbol_set->second, entry.offset);
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if (symbol.has_value()) {
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// TODO(DarkLordZach): Add demangling of symbol names.
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entry.name = *symbol;
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}
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}
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}
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return out;
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}
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std::vector<ARM_Interface::BacktraceEntry> ARM_Interface::GetBacktrace() const {
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std::vector<BacktraceEntry> out;
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auto& memory = system.Memory();
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@ -164,6 +164,9 @@ public:
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std::string name;
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};
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static std::vector<BacktraceEntry> GetBacktraceFromContext(System& system,
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const ThreadContext64& ctx);
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std::vector<BacktraceEntry> GetBacktrace() const;
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/// fp (= r29) points to the last frame record.
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@ -2,10 +2,13 @@
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <fmt/format.h>
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#include "yuzu/debugger/wait_tree.h"
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#include "yuzu/util/util.h"
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#include "common/assert.h"
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#include "core/arm/arm_interface.h"
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#include "core/core.h"
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#include "core/hle/kernel/handle_table.h"
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#include "core/hle/kernel/mutex.h"
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@ -116,20 +119,20 @@ QString WaitTreeCallstack::GetText() const {
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std::vector<std::unique_ptr<WaitTreeItem>> WaitTreeCallstack::GetChildren() const {
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std::vector<std::unique_ptr<WaitTreeItem>> list;
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constexpr std::size_t BaseRegister = 29;
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auto& memory = Core::System::GetInstance().Memory();
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u64 base_pointer = thread.GetContext64().cpu_registers[BaseRegister];
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while (base_pointer != 0) {
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const u64 lr = memory.Read64(base_pointer + sizeof(u64));
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if (lr == 0) {
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break;
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if (thread.IsHLEThread()) {
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return list;
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}
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list.push_back(std::make_unique<WaitTreeText>(
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tr("0x%1").arg(lr - sizeof(u32), 16, 16, QLatin1Char{'0'})));
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if (thread.GetOwnerProcess() == nullptr || !thread.GetOwnerProcess()->Is64BitProcess()) {
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return list;
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}
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base_pointer = memory.Read64(base_pointer);
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auto backtrace = Core::ARM_Interface::GetBacktraceFromContext(Core::System::GetInstance(), thread.GetContext64());
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for (auto& entry : backtrace) {
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std::string s = fmt::format("{:20}{:016X} {:016X} {:016X} {}", entry.module, entry.address,
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entry.original_address, entry.offset, entry.name);
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list.push_back(std::make_unique<WaitTreeText>(QString::fromStdString(s)));
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}
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return list;
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