diff options
Diffstat (limited to '')
-rw-r--r-- | include/pdb/symbol.hpp | 44 |
1 files changed, 5 insertions, 39 deletions
diff --git a/include/pdb/symbol.hpp b/include/pdb/symbol.hpp index 6c36092..2e24a5a 100644 --- a/include/pdb/symbol.hpp +++ b/include/pdb/symbol.hpp @@ -13,10 +13,9 @@ #include <DbgHelp.h> #include <Windows.h> +#include <array> #include <climits> #include <cstddef> -#include <cstring> -#include <stdexcept> #include <string> namespace pdb { @@ -38,32 +37,18 @@ class SymbolInfo { public: typedef SYMBOL_INFO Impl; - SymbolInfo() : impl{*reinterpret_cast<Impl*>(buffer)} { - impl.SizeOfStruct = sizeof(Impl); - impl.MaxNameLen = MAX_SYM_NAME; - } - - explicit SymbolInfo(const Impl& impl) : SymbolInfo{} { - if (impl.SizeOfStruct != sizeof(impl)) - throw std::runtime_error{"invalid SYMBOL_INFO.SizeOfStruct"}; - const auto raw_size = calc_size(impl); - if (raw_size > sizeof(buffer)) - throw std::runtime_error{"SYMBOL_INFO is too large"}; - std::memcpy(buffer, &impl, raw_size); - } + SymbolInfo(); + explicit SymbolInfo(const Impl& impl); explicit operator Impl&() { return impl; } - explicit operator const Impl&() const { return impl; } Address get_displacement() const { return displacement; } - void set_displacement(Address new_value) { displacement = new_value; } std::string get_name() const { return {impl.Name, impl.NameLen}; } Address get_offline_base() const { return impl.ModBase; } - Address get_offline_address() const { return impl.Address; } symbol::Tag get_tag() const { return impl.Tag; } @@ -80,15 +65,7 @@ public: private: static constexpr std::size_t max_buffer_size = sizeof(Impl) + MAX_SYM_NAME - 1; - static std::size_t calc_size(const Impl& impl) { - try { - return SafeInt<std::size_t>{impl.SizeOfStruct} + impl.NameLen - 1; - } catch (const SafeIntException&) { - throw std::runtime_error{"invalid SYMBOL_INFO size"}; - } - } - - unsigned char buffer[max_buffer_size] = {0}; + std::array<unsigned char, max_buffer_size> buffer; Address displacement = 0; protected: @@ -110,21 +87,10 @@ class LineInfo { public: typedef IMAGEHLP_LINE64 Impl; - explicit LineInfo(const Impl& impl) - : file_path{impl.FileName}, line_number{cast_line_number(impl.LineNumber)} {} + explicit LineInfo(const Impl& impl); const std::string file_path; const unsigned long line_number; - -private: - static unsigned long cast_line_number(DWORD impl) { - unsigned long dest = 0; - - if (!SafeCast(impl, dest)) - throw std::runtime_error{"invalid line number"}; - - return dest; - } }; } // namespace pdb |