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-rw-r--r--src/core/arm/arm_interface.cpp57
-rw-r--r--src/core/arm/arm_interface.h3
2 files changed, 60 insertions, 0 deletions
diff --git a/src/core/arm/arm_interface.cpp b/src/core/arm/arm_interface.cpp
index d079a1bc8..d2295ed90 100644
--- a/src/core/arm/arm_interface.cpp
+++ b/src/core/arm/arm_interface.cpp
@@ -139,6 +139,63 @@ std::optional<std::string> GetSymbolName(const Symbols& symbols, VAddr func_addr
constexpr u64 SEGMENT_BASE = 0x7100000000ull;
+std::vector<ARM_Interface::BacktraceEntry> ARM_Interface::GetBacktraceFromContext(
+ System& system, const ThreadContext64& ctx) {
+ std::vector<BacktraceEntry> out;
+ auto& memory = system.Memory();
+
+ auto fp = ctx.cpu_registers[29];
+ auto lr = ctx.cpu_registers[30];
+ while (true) {
+ out.push_back({"", 0, lr, 0});
+ if (!fp) {
+ break;
+ }
+ lr = memory.Read64(fp + 8) - 4;
+ fp = memory.Read64(fp);
+ }
+
+ std::map<VAddr, std::string> modules;
+ auto& loader{system.GetAppLoader()};
+ if (loader.ReadNSOModules(modules) != Loader::ResultStatus::Success) {
+ return {};
+ }
+
+ std::map<std::string, Symbols> symbols;
+ for (const auto& module : modules) {
+ symbols.insert_or_assign(module.second, GetSymbols(module.first, memory));
+ }
+
+ for (auto& entry : out) {
+ VAddr base = 0;
+ for (auto iter = modules.rbegin(); iter != modules.rend(); ++iter) {
+ const auto& module{*iter};
+ if (entry.original_address >= module.first) {
+ entry.module = module.second;
+ base = module.first;
+ break;
+ }
+ }
+
+ entry.offset = entry.original_address - base;
+ entry.address = SEGMENT_BASE + entry.offset;
+
+ if (entry.module.empty())
+ entry.module = "unknown";
+
+ const auto symbol_set = symbols.find(entry.module);
+ if (symbol_set != symbols.end()) {
+ const auto symbol = GetSymbolName(symbol_set->second, entry.offset);
+ if (symbol.has_value()) {
+ // TODO(DarkLordZach): Add demangling of symbol names.
+ entry.name = *symbol;
+ }
+ }
+ }
+
+ return out;
+}
+
std::vector<ARM_Interface::BacktraceEntry> ARM_Interface::GetBacktrace() const {
std::vector<BacktraceEntry> out;
auto& memory = system.Memory();
diff --git a/src/core/arm/arm_interface.h b/src/core/arm/arm_interface.h
index 87a1c29cc..e701ddf21 100644
--- a/src/core/arm/arm_interface.h
+++ b/src/core/arm/arm_interface.h
@@ -164,6 +164,9 @@ public:
std::string name;
};
+ static std::vector<BacktraceEntry> GetBacktraceFromContext(System& system,
+ const ThreadContext64& ctx);
+
std::vector<BacktraceEntry> GetBacktrace() const;
/// fp (= r29) points to the last frame record.