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-rw-r--r--src/core/CMakeLists.txt2
-rw-r--r--src/core/arm/arm_interface.cpp141
-rw-r--r--src/core/arm/symbols.cpp190
-rw-r--r--src/core/arm/symbols.h27
4 files changed, 231 insertions, 129 deletions
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 81eaf0942..ffbda7925 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -13,6 +13,8 @@ add_library(core STATIC
arm/dynarmic/arm_exclusive_monitor.h
arm/exclusive_monitor.cpp
arm/exclusive_monitor.h
+ arm/symbols.cpp
+ arm/symbols.h
constants.cpp
constants.h
core.cpp
diff --git a/src/core/arm/arm_interface.cpp b/src/core/arm/arm_interface.cpp
index 0951e1976..08bf1201d 100644
--- a/src/core/arm/arm_interface.cpp
+++ b/src/core/arm/arm_interface.cpp
@@ -8,134 +8,13 @@
#include "common/common_types.h"
#include "common/logging/log.h"
#include "core/arm/arm_interface.h"
+#include "core/arm/symbols.h"
#include "core/core.h"
+#include "core/hle/kernel/k_process.h"
#include "core/loader/loader.h"
#include "core/memory.h"
namespace Core {
-namespace {
-
-constexpr u64 ELF_DYNAMIC_TAG_NULL = 0;
-constexpr u64 ELF_DYNAMIC_TAG_STRTAB = 5;
-constexpr u64 ELF_DYNAMIC_TAG_SYMTAB = 6;
-constexpr u64 ELF_DYNAMIC_TAG_SYMENT = 11;
-
-enum class ELFSymbolType : u8 {
- None = 0,
- Object = 1,
- Function = 2,
- Section = 3,
- File = 4,
- Common = 5,
- TLS = 6,
-};
-
-enum class ELFSymbolBinding : u8 {
- Local = 0,
- Global = 1,
- Weak = 2,
-};
-
-enum class ELFSymbolVisibility : u8 {
- Default = 0,
- Internal = 1,
- Hidden = 2,
- Protected = 3,
-};
-
-struct ELFSymbol {
- u32 name_index;
- union {
- u8 info;
-
- BitField<0, 4, ELFSymbolType> type;
- BitField<4, 4, ELFSymbolBinding> binding;
- };
- ELFSymbolVisibility visibility;
- u16 sh_index;
- u64 value;
- u64 size;
-};
-static_assert(sizeof(ELFSymbol) == 0x18, "ELFSymbol has incorrect size.");
-
-using Symbols = std::vector<std::pair<ELFSymbol, std::string>>;
-
-Symbols GetSymbols(VAddr text_offset, Core::Memory::Memory& memory) {
- const auto mod_offset = text_offset + memory.Read32(text_offset + 4);
-
- if (mod_offset < text_offset || (mod_offset & 0b11) != 0 ||
- memory.Read32(mod_offset) != Common::MakeMagic('M', 'O', 'D', '0')) {
- return {};
- }
-
- const auto dynamic_offset = memory.Read32(mod_offset + 0x4) + mod_offset;
-
- VAddr string_table_offset{};
- VAddr symbol_table_offset{};
- u64 symbol_entry_size{};
-
- VAddr dynamic_index = dynamic_offset;
- while (true) {
- const u64 tag = memory.Read64(dynamic_index);
- const u64 value = memory.Read64(dynamic_index + 0x8);
- dynamic_index += 0x10;
-
- if (tag == ELF_DYNAMIC_TAG_NULL) {
- break;
- }
-
- if (tag == ELF_DYNAMIC_TAG_STRTAB) {
- string_table_offset = value;
- } else if (tag == ELF_DYNAMIC_TAG_SYMTAB) {
- symbol_table_offset = value;
- } else if (tag == ELF_DYNAMIC_TAG_SYMENT) {
- symbol_entry_size = value;
- }
- }
-
- if (string_table_offset == 0 || symbol_table_offset == 0 || symbol_entry_size == 0) {
- return {};
- }
-
- const auto string_table_address = text_offset + string_table_offset;
- const auto symbol_table_address = text_offset + symbol_table_offset;
-
- Symbols out;
-
- VAddr symbol_index = symbol_table_address;
- while (symbol_index < string_table_address) {
- ELFSymbol symbol{};
- memory.ReadBlock(symbol_index, &symbol, sizeof(ELFSymbol));
-
- VAddr string_offset = string_table_address + symbol.name_index;
- std::string name;
- for (u8 c = memory.Read8(string_offset); c != 0; c = memory.Read8(++string_offset)) {
- name += static_cast<char>(c);
- }
-
- symbol_index += symbol_entry_size;
- out.push_back({symbol, name});
- }
-
- return out;
-}
-
-std::optional<std::string> GetSymbolName(const Symbols& symbols, VAddr func_address) {
- const auto iter =
- std::find_if(symbols.begin(), symbols.end(), [func_address](const auto& pair) {
- const auto& symbol = pair.first;
- const auto end_address = symbol.value + symbol.size;
- return func_address >= symbol.value && func_address < end_address;
- });
-
- if (iter == symbols.end()) {
- return std::nullopt;
- }
-
- return iter->second;
-}
-
-} // Anonymous namespace
constexpr u64 SEGMENT_BASE = 0x7100000000ull;
@@ -169,9 +48,11 @@ std::vector<ARM_Interface::BacktraceEntry> ARM_Interface::GetBacktraceFromContex
return {};
}
- std::map<std::string, Symbols> symbols;
+ std::map<std::string, Symbols::Symbols> symbols;
for (const auto& module : modules) {
- symbols.insert_or_assign(module.second, GetSymbols(module.first, memory));
+ symbols.insert_or_assign(module.second,
+ Symbols::GetSymbols(module.first, system.Memory(),
+ system.CurrentProcess()->Is64BitProcess()));
}
for (auto& entry : out) {
@@ -193,7 +74,7 @@ std::vector<ARM_Interface::BacktraceEntry> ARM_Interface::GetBacktraceFromContex
const auto symbol_set = symbols.find(entry.module);
if (symbol_set != symbols.end()) {
- const auto symbol = GetSymbolName(symbol_set->second, entry.offset);
+ const auto symbol = Symbols::GetSymbolName(symbol_set->second, entry.offset);
if (symbol.has_value()) {
// TODO(DarkLordZach): Add demangling of symbol names.
entry.name = *symbol;
@@ -225,9 +106,11 @@ std::vector<ARM_Interface::BacktraceEntry> ARM_Interface::GetBacktrace() const {
return {};
}
- std::map<std::string, Symbols> symbols;
+ std::map<std::string, Symbols::Symbols> symbols;
for (const auto& module : modules) {
- symbols.insert_or_assign(module.second, GetSymbols(module.first, memory));
+ symbols.insert_or_assign(module.second,
+ Symbols::GetSymbols(module.first, system.Memory(),
+ system.CurrentProcess()->Is64BitProcess()));
}
for (auto& entry : out) {
@@ -249,7 +132,7 @@ std::vector<ARM_Interface::BacktraceEntry> ARM_Interface::GetBacktrace() const {
const auto symbol_set = symbols.find(entry.module);
if (symbol_set != symbols.end()) {
- const auto symbol = GetSymbolName(symbol_set->second, entry.offset);
+ const auto symbol = Symbols::GetSymbolName(symbol_set->second, entry.offset);
if (symbol.has_value()) {
// TODO(DarkLordZach): Add demangling of symbol names.
entry.name = *symbol;
diff --git a/src/core/arm/symbols.cpp b/src/core/arm/symbols.cpp
new file mode 100644
index 000000000..26c44f0c7
--- /dev/null
+++ b/src/core/arm/symbols.cpp
@@ -0,0 +1,190 @@
+// Copyright 2022 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/bit_field.h"
+#include "common/common_funcs.h"
+#include "core/arm/symbols.h"
+#include "core/core.h"
+#include "core/memory.h"
+
+namespace Core {
+namespace {
+
+constexpr u64 ELF_DYNAMIC_TAG_NULL = 0;
+constexpr u64 ELF_DYNAMIC_TAG_STRTAB = 5;
+constexpr u64 ELF_DYNAMIC_TAG_SYMTAB = 6;
+constexpr u64 ELF_DYNAMIC_TAG_SYMENT = 11;
+
+enum class ELFSymbolType : u8 {
+ None = 0,
+ Object = 1,
+ Function = 2,
+ Section = 3,
+ File = 4,
+ Common = 5,
+ TLS = 6,
+};
+
+enum class ELFSymbolBinding : u8 {
+ Local = 0,
+ Global = 1,
+ Weak = 2,
+};
+
+enum class ELFSymbolVisibility : u8 {
+ Default = 0,
+ Internal = 1,
+ Hidden = 2,
+ Protected = 3,
+};
+
+struct ELF64Symbol {
+ u32 name_index;
+ union {
+ u8 info;
+
+ BitField<0, 4, ELFSymbolType> type;
+ BitField<4, 4, ELFSymbolBinding> binding;
+ };
+ ELFSymbolVisibility visibility;
+ u16 sh_index;
+ u64 value;
+ u64 size;
+};
+static_assert(sizeof(ELF64Symbol) == 0x18, "ELF64Symbol has incorrect size.");
+
+struct ELF32Symbol {
+ u32 name_index;
+ u32 value;
+ u32 size;
+ union {
+ u8 info;
+
+ BitField<0, 4, ELFSymbolType> type;
+ BitField<4, 4, ELFSymbolBinding> binding;
+ };
+ ELFSymbolVisibility visibility;
+ u16 sh_index;
+};
+static_assert(sizeof(ELF32Symbol) == 0x10, "ELF32Symbol has incorrect size.");
+
+} // Anonymous namespace
+
+namespace Symbols {
+
+template <typename Word, typename ELFSymbol, typename ByteReader>
+static Symbols GetSymbols(ByteReader ReadBytes) {
+ const auto Read8{[&](u64 index) {
+ u8 ret;
+ ReadBytes(&ret, index, sizeof(u8));
+ return ret;
+ }};
+
+ const auto Read32{[&](u64 index) {
+ u32 ret;
+ ReadBytes(&ret, index, sizeof(u32));
+ return ret;
+ }};
+
+ const auto ReadWord{[&](u64 index) {
+ Word ret;
+ ReadBytes(&ret, index, sizeof(Word));
+ return ret;
+ }};
+
+ const u32 mod_offset = Read32(4);
+
+ if (Read32(mod_offset) != Common::MakeMagic('M', 'O', 'D', '0')) {
+ return {};
+ }
+
+ VAddr string_table_offset{};
+ VAddr symbol_table_offset{};
+ u64 symbol_entry_size{};
+
+ const auto dynamic_offset = Read32(mod_offset + 0x4) + mod_offset;
+
+ VAddr dynamic_index = dynamic_offset;
+ while (true) {
+ const Word tag = ReadWord(dynamic_index);
+ const Word value = ReadWord(dynamic_index + sizeof(Word));
+ dynamic_index += 2 * sizeof(Word);
+
+ if (tag == ELF_DYNAMIC_TAG_NULL) {
+ break;
+ }
+
+ if (tag == ELF_DYNAMIC_TAG_STRTAB) {
+ string_table_offset = value;
+ } else if (tag == ELF_DYNAMIC_TAG_SYMTAB) {
+ symbol_table_offset = value;
+ } else if (tag == ELF_DYNAMIC_TAG_SYMENT) {
+ symbol_entry_size = value;
+ }
+ }
+
+ if (string_table_offset == 0 || symbol_table_offset == 0 || symbol_entry_size == 0) {
+ return {};
+ }
+
+ Symbols out;
+
+ VAddr symbol_index = symbol_table_offset;
+ while (symbol_index < string_table_offset) {
+ ELFSymbol symbol{};
+ ReadBytes(&symbol, symbol_index, sizeof(ELFSymbol));
+
+ VAddr string_offset = string_table_offset + symbol.name_index;
+ std::string name;
+ for (u8 c = Read8(string_offset); c != 0; c = Read8(++string_offset)) {
+ name += static_cast<char>(c);
+ }
+
+ symbol_index += symbol_entry_size;
+ out[name] = std::make_pair(symbol.value, symbol.size);
+ }
+
+ return out;
+}
+
+Symbols GetSymbols(VAddr base, Core::Memory::Memory& memory, bool is_64) {
+ const auto ReadBytes{
+ [&](void* ptr, size_t offset, size_t size) { memory.ReadBlock(base + offset, ptr, size); }};
+
+ if (is_64) {
+ return GetSymbols<u64, ELF64Symbol>(ReadBytes);
+ } else {
+ return GetSymbols<u32, ELF32Symbol>(ReadBytes);
+ }
+}
+
+Symbols GetSymbols(std::span<const u8> data, bool is_64) {
+ const auto ReadBytes{[&](void* ptr, size_t offset, size_t size) {
+ std::memcpy(ptr, data.data() + offset, size);
+ }};
+
+ if (is_64) {
+ return GetSymbols<u64, ELF64Symbol>(ReadBytes);
+ } else {
+ return GetSymbols<u32, ELF32Symbol>(ReadBytes);
+ }
+}
+
+std::optional<std::string> GetSymbolName(const Symbols& symbols, VAddr addr) {
+ const auto iter = std::find_if(symbols.cbegin(), symbols.cend(), [addr](const auto& pair) {
+ const auto& [name, sym_info] = pair;
+ const auto& [start_address, size] = sym_info;
+ const auto end_address = start_address + size;
+ return addr >= start_address && addr < end_address;
+ });
+
+ if (iter == symbols.cend()) {
+ return std::nullopt;
+ }
+
+ return iter->first;
+}
+
+} // namespace Symbols
+} // namespace Core
diff --git a/src/core/arm/symbols.h b/src/core/arm/symbols.h
new file mode 100644
index 000000000..99e6a9f8e
--- /dev/null
+++ b/src/core/arm/symbols.h
@@ -0,0 +1,27 @@
+// Copyright 2022 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <map>
+#include <optional>
+#include <span>
+#include <string>
+#include <utility>
+
+#include "common/common_types.h"
+
+namespace Core::Memory {
+class Memory;
+} // namespace Core::Memory
+
+namespace Core::Symbols {
+
+using Symbols = std::map<std::string, std::pair<VAddr, std::size_t>, std::less<>>;
+
+Symbols GetSymbols(VAddr base, Core::Memory::Memory& memory, bool is_64 = true);
+Symbols GetSymbols(std::span<const u8> data, bool is_64 = true);
+std::optional<std::string> GetSymbolName(const Symbols& symbols, VAddr addr);
+
+} // namespace Core::Symbols
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 23:12:35 +0100