Improve LLDB reliability by fixing the following "uninitialized variables" static code inspection warnings from
scan.coverity.com:
1094796 1095721 1095728 1095737 1095741
1095756 1095779 1095789 1095805 1214552
1229457 1232475 1274006 1274010 1293427
1364800 1364802 1364804 1364812 1364816
1374902 1374909 1384975 1399312 1420451
1431704 1454230 1454554 1454615 1454579
1454594 1454832 1457759 1458696 1461909
1467658 1487814 1487830 1487845
Differential Revision: https://reviews.llvm.org/D130098
eInfoTypeISAAndImmediateSigned,
eInfoTypeISA,
eInfoTypeNoArgs
- } InfoType;
+ };
struct Context {
ContextType type = eContextInvalid;
std::vector<lldb::LanguageType> m_languages;
- uint32_t m_enabled_position;
+ uint32_t m_enabled_position = 0;
void Enable(bool value, uint32_t position);
uint32_t &GetRevision() { return m_my_revision; }
protected:
- uint32_t m_my_revision;
+ uint32_t m_my_revision = 0;
Flags m_flags;
private:
OptionValueUInt64 m_num_per_line;
bool m_output_as_binary = false;
OptionValueString m_view_as_type;
- bool m_force;
+ bool m_force = false;
OptionValueUInt64 m_offset;
OptionValueLanguage m_language_for_type;
};
m_class_name.clear();
m_function_name.clear();
m_line_start = 0;
- m_line_end = UINT_MAX;
+ m_line_end = LLDB_INVALID_LINE_NUMBER;
m_file_name.clear();
m_module_name.clear();
m_func_name_type_mask = eFunctionNameTypeAuto;
std::string m_class_name;
std::string m_function_name;
uint32_t m_line_start = 0;
- uint32_t m_line_end;
+ uint32_t m_line_end = LLDB_INVALID_LINE_NUMBER;
std::string m_file_name;
std::string m_module_name;
uint32_t m_func_name_type_mask =
eFunctionNameTypeAuto; // A pick from lldb::FunctionNameType.
- lldb::tid_t m_thread_id;
- uint32_t m_thread_index;
+ lldb::tid_t m_thread_id = LLDB_INVALID_THREAD_ID;
+ uint32_t m_thread_index = UINT32_MAX;
std::string m_thread_name;
std::string m_queue_name;
bool m_sym_ctx_specified = false;
- bool m_no_inlines;
+ bool m_no_inlines = false;
bool m_thread_specified = false;
// Instance variables to hold the values for one_liner options.
bool m_use_one_liner = false;
std::vector<std::string> m_one_liner;
- bool m_auto_continue;
+ bool m_auto_continue = false;
};
CommandObjectTargetStopHookAdd(CommandInterpreter &interpreter)
return llvm::makeArrayRef(g_thread_until_options);
}
- uint32_t m_step_thread_idx;
- bool m_stop_others;
+ uint32_t m_step_thread_idx = LLDB_INVALID_THREAD_ID;
+ bool m_stop_others = false;
std::vector<lldb::addr_t> m_until_addrs;
// Instance variables to hold the values for command options.
// Instance variables to hold the values for command options.
TypeSummaryImpl::Flags m_flags;
- bool m_regex;
+ bool m_regex = false;
std::string m_format_string;
ConstString m_name;
std::string m_python_script;
std::string m_python_function;
- bool m_is_add_script;
+ bool m_is_add_script = false;
std::string m_category;
};
: m_process(process), m_rendezvous_addr(LLDB_INVALID_ADDRESS), m_current(),
m_previous(), m_soentries(), m_added_soentries(), m_removed_soentries() {
m_thread_info.valid = false;
+ m_thread_info.dtv_offset = 0;
+ m_thread_info.dtv_slot_size = 0;
+ m_thread_info.modid_offset = 0;
+ m_thread_info.tls_offset = 0;
// Cache a copy of the executable path
if (m_process) {
EmulateInstructionARM(const ArchSpec &arch)
: EmulateInstruction(arch), m_arm_isa(0), m_opcode_mode(eModeInvalid),
- m_opcode_cpsr(0), m_it_session(), m_ignore_conditions(false) {
+ m_opcode_cpsr(0), m_new_inst_cpsr(0), m_it_session(),
+ m_ignore_conditions(false) {
SetArchitecture(arch);
}
private:
/// Input character until which we have constructed the respective output
/// already.
- const char *Written;
+ const char *Written = "";
llvm::SmallString<128> Result;
/// Whether we have performed any substitutions.
- bool Substituted;
+ bool Substituted = false;
const char *currentParserPos() const { return this->First; }
AbstractListFrontEnd(ValueObject &valobj)
: SyntheticChildrenFrontEnd(valobj) {}
- size_t m_count;
- ValueObject *m_head;
+ size_t m_count = 0;
+ ValueObject *m_head = nullptr;
static constexpr bool g_use_loop_detect = true;
- size_t m_loop_detected; // The number of elements that have had loop detection
- // run over them.
+ size_t m_loop_detected = 0; // The number of elements that have had loop
+ // detection run over them.
ListEntry m_slow_runner; // Used for loop detection
ListEntry m_fast_runner; // Used for loop detection
- size_t m_list_capping_size;
+ size_t m_list_capping_size = 0;
CompilerType m_element_type;
std::map<size_t, ListIterator> m_iterators;
}
MapEntry m_entry;
- size_t m_max_depth;
- bool m_error;
+ size_t m_max_depth = 0;
+ bool m_error = false;
};
namespace lldb_private {
ExecutionContextRef m_exe_ctx_ref;
bool m_mutable = true;
bool m_multi = false;
- HashType m_type;
+ HashType m_type = HashType::set;
};
} // namespace lldb_private
lldb::ByteOrder m_order = lldb::eByteOrderInvalid;
DataDescriptor_32 *m_data_32 = nullptr;
DataDescriptor_64 *m_data_64 = nullptr;
- lldb::addr_t m_data_ptr;
+ lldb::addr_t m_data_ptr = LLDB_INVALID_ADDRESS;
CompilerType m_pair_type;
std::vector<DictionaryItemDescriptor> m_children;
};
// values to leak if the latter, then I need to store a SharedPointer to it -
// so that it only goes away when everyone else in the cluster goes away oh
// joy!
- ValueObject *m_child_ptr;
+ ValueObject *m_child_ptr = nullptr;
ValueObjectSP m_child_sp;
};
uint8_t m_ptr_size = 8;
DataDescriptor_32 *m_data_32 = nullptr;
DataDescriptor_64 *m_data_64 = nullptr;
- lldb::addr_t m_data_ptr;
+ lldb::addr_t m_data_ptr = LLDB_INVALID_ADDRESS;
std::vector<SetItemDescriptor> m_children;
};
private:
ConstString m_name;
- uint8_t m_pointer_size;
- bool m_valid;
- uint64_t m_info_bits;
- uint64_t m_value_bits;
- int64_t m_value_bits_signed;
- uint64_t m_payload;
+ uint8_t m_pointer_size = 0;
+ bool m_valid = false;
+ uint64_t m_info_bits = 0;
+ uint64_t m_value_bits = 0;
+ int64_t m_value_bits_signed = 0;
+ uint64_t m_payload = 0;
};
} // namespace lldb_private
: m_process_wp(), m_objc_module_sp(objc_module_sp),
m_impl_fn_addr(LLDB_INVALID_ADDRESS),
m_impl_stret_fn_addr(LLDB_INVALID_ADDRESS),
- m_msg_forward_addr(LLDB_INVALID_ADDRESS) {
+ m_msg_forward_addr(LLDB_INVALID_ADDRESS),
+ m_msg_forward_stret_addr(LLDB_INVALID_ADDRESS) {
if (process_sp)
m_process_wp = process_sp;
// Look up the known resolution functions:
return nullptr;
}
-void
-AppleObjCTrampolineHandler::ForEachDispatchFunction(
- std::function<void(lldb::addr_t,
- const DispatchFunction &)> callback) {
+void AppleObjCTrampolineHandler::ForEachDispatchFunction(
+ std::function<void(lldb::addr_t, const DispatchFunction &)> callback) {
for (auto elem : m_msgSend_map) {
callback(elem.first, g_dispatch_functions[elem.second]);
}
int m_kernel_types = RSReduceBreakpointResolver::eKernelTypeAll;
llvm::StringRef m_reduce_name;
RSCoordinate m_coord;
- bool m_have_coord;
+ bool m_have_coord = false;
};
Options *GetOptions() override { return &m_options; }
}
RSCoordinate m_coord;
- bool m_have_coord;
+ bool m_have_coord = false;
};
bool DoExecute(Args &command, CommandReturnObject &result) override {
llvm::StringRef halter_name = ".")
: m_module(module), m_reduce_name(name), m_init_name(init_name),
m_accum_name(accum_name), m_comb_name(comb_name),
- m_outc_name(outc_name), m_halter_name(halter_name) {
+ m_outc_name(outc_name), m_halter_name(halter_name), m_accum_sig(0),
+ m_accum_data_size(0), m_comb_name_generated(false) {
// TODO Check whether the combiner is an autogenerated name, and track
// this
}
for (uint32_t i = 0; i < m_header.ncmds; ++i) {
const lldb::offset_t load_cmd_offset = offset;
- llvm::MachO::load_command lc;
+ llvm::MachO::load_command lc = {};
if (m_data.GetU32(&offset, &lc.cmd, 2) == nullptr)
break;
if (lc.cmd == LC_DYSYMTAB) {
lldb::offset_t offset = MachHeaderSizeFromMagic(m_header.magic);
for (uint32_t i = 0; i < m_header.ncmds; ++i) {
const uint32_t cmd_offset = offset;
- llvm::MachO::load_command lc;
+ llvm::MachO::load_command lc = {};
if (m_data.GetU32(&offset, &lc.cmd, 2) == nullptr)
break;
if (lc.cmd == LC_NOTE) {
lldb::offset_t offset = MachHeaderSizeFromMagic(m_header.magic);
for (uint32_t i = 0; i < m_header.ncmds; ++i) {
const uint32_t cmd_offset = offset;
- llvm::MachO::load_command lc;
+ llvm::MachO::load_command lc = {};
if (m_data.GetU32(&offset, &lc.cmd, 2) == nullptr)
break;
if (lc.cmd == LC_NOTE) {
lldb::offset_t offset = MachHeaderSizeFromMagic(m_header.magic);
for (uint32_t i = 0; i < m_header.ncmds; ++i) {
const uint32_t cmd_offset = offset;
- llvm::MachO::load_command lc;
+ llvm::MachO::load_command lc = {};
if (m_data.GetU32(&offset, &lc.cmd, 2) == nullptr)
break;
if (lc.cmd == LC_NOTE) {
for (uint32_t i = 0; i < m_header.ncmds; ++i) {
const lldb::offset_t load_cmd_offset = offset;
- llvm::MachO::version_min_command lc;
+ llvm::MachO::version_min_command lc = {};
if (m_data.GetU32(&offset, &lc.cmd, 2) == nullptr)
break;
if (lc.cmd == llvm::MachO::LC_VERSION_MIN_MACOSX ||
for (uint32_t i = 0; i < m_header.ncmds; ++i) {
const lldb::offset_t load_cmd_offset = offset;
- llvm::MachO::version_min_command lc;
+ llvm::MachO::version_min_command lc = {};
if (m_data.GetU32(&offset, &lc.cmd, 2) == nullptr)
break;
if (lc.cmd == llvm::MachO::LC_VERSION_MIN_MACOSX ||
for (uint32_t i = 0; i < m_header.ncmds; ++i) {
const lldb::offset_t load_cmd_offset = offset;
- llvm::MachO::version_min_command lc;
+ llvm::MachO::version_min_command lc = {};
if (m_data.GetU32(&offset, &lc.cmd, 2) == nullptr)
break;
if (lc.cmd == llvm::MachO::LC_BUILD_VERSION) {
lldb::offset_t offset = MachHeaderSizeFromMagic(m_header.magic);
for (uint32_t i = 0; i < m_header.ncmds; ++i) {
const uint32_t cmd_offset = offset;
- llvm::MachO::load_command lc;
+ llvm::MachO::load_command lc = {};
if (m_data.GetU32(&offset, &lc.cmd, 2) == nullptr)
break;
if (lc.cmd == LC_NOTE) {
typedef lldb_private::RangeVector<uint32_t, uint32_t> FileRangeArray;
lldb_private::Address m_entry_point_address;
FileRangeArray m_thread_context_offsets;
- lldb::offset_t m_linkedit_original_offset;
- lldb::addr_t m_text_address;
+ lldb::offset_t m_linkedit_original_offset = 0;
+ lldb::addr_t m_text_address = LLDB_INVALID_ADDRESS;
bool m_thread_context_offsets_valid;
lldb_private::FileSpecList m_reexported_dylibs;
bool m_allow_assembly_emulation_unwind_plans;
lldb_private::minidump::MinidumpContext_x86_64
GetThreadContext_64(RegisterContext *reg_ctx) {
lldb_private::minidump::MinidumpContext_x86_64 thread_context;
+ thread_context.p1_home = {};
thread_context.context_flags = static_cast<uint32_t>(
lldb_private::minidump::MinidumpContext_x86_64_Flags::x86_64_Flag |
lldb_private::minidump::MinidumpContext_x86_64_Flags::Control |
lldb::offset_t file_offset,
lldb::offset_t length)
: ObjectFile(module_sp, file, file_offset, length, data_sp, data_offset),
- m_dos_header(), m_coff_header(), m_sect_headers(),
- m_entry_point_address(), m_deps_filespec() {
- ::memset(&m_dos_header, 0, sizeof(m_dos_header));
- ::memset(&m_coff_header, 0, sizeof(m_coff_header));
-}
+ m_dos_header(), m_coff_header(), m_coff_header_opt(), m_sect_headers(),
+ m_image_base(LLDB_INVALID_ADDRESS), m_entry_point_address(),
+ m_deps_filespec() {}
ObjectFilePECOFF::ObjectFilePECOFF(const lldb::ModuleSP &module_sp,
WritableDataBufferSP header_data_sp,
const lldb::ProcessSP &process_sp,
addr_t header_addr)
: ObjectFile(module_sp, process_sp, header_addr, header_data_sp),
- m_dos_header(), m_coff_header(), m_sect_headers(),
- m_entry_point_address(), m_deps_filespec() {
- ::memset(&m_dos_header, 0, sizeof(m_dos_header));
- ::memset(&m_coff_header, 0, sizeof(m_coff_header));
-}
+ m_dos_header(), m_coff_header(), m_coff_header_opt(), m_sect_headers(),
+ m_image_base(LLDB_INVALID_ADDRESS), m_entry_point_address(),
+ m_deps_filespec() {}
ObjectFilePECOFF::~ObjectFilePECOFF() = default;
bool NeedsEndianSwap() const;
typedef struct dos_header { // DOS .EXE header
- uint16_t e_magic; // Magic number
- uint16_t e_cblp; // Bytes on last page of file
- uint16_t e_cp; // Pages in file
- uint16_t e_crlc; // Relocations
- uint16_t e_cparhdr; // Size of header in paragraphs
- uint16_t e_minalloc; // Minimum extra paragraphs needed
- uint16_t e_maxalloc; // Maximum extra paragraphs needed
- uint16_t e_ss; // Initial (relative) SS value
- uint16_t e_sp; // Initial SP value
- uint16_t e_csum; // Checksum
- uint16_t e_ip; // Initial IP value
- uint16_t e_cs; // Initial (relative) CS value
- uint16_t e_lfarlc; // File address of relocation table
- uint16_t e_ovno; // Overlay number
+ uint16_t e_magic = 0; // Magic number
+ uint16_t e_cblp = 0; // Bytes on last page of file
+ uint16_t e_cp = 0; // Pages in file
+ uint16_t e_crlc = 0; // Relocations
+ uint16_t e_cparhdr = 0; // Size of header in paragraphs
+ uint16_t e_minalloc = 0; // Minimum extra paragraphs needed
+ uint16_t e_maxalloc = 0; // Maximum extra paragraphs needed
+ uint16_t e_ss = 0; // Initial (relative) SS value
+ uint16_t e_sp = 0; // Initial SP value
+ uint16_t e_csum = 0; // Checksum
+ uint16_t e_ip = 0; // Initial IP value
+ uint16_t e_cs = 0; // Initial (relative) CS value
+ uint16_t e_lfarlc = 0; // File address of relocation table
+ uint16_t e_ovno = 0; // Overlay number
uint16_t e_res[4]; // Reserved words
- uint16_t e_oemid; // OEM identifier (for e_oeminfo)
- uint16_t e_oeminfo; // OEM information; e_oemid specific
- uint16_t e_res2[10]; // Reserved words
- uint32_t e_lfanew; // File address of new exe header
+ uint16_t e_oemid = 0; // OEM identifier (for e_oeminfo)
+ uint16_t e_oeminfo = 0; // OEM information; e_oemid specific
+ uint16_t e_res2[10] = {}; // Reserved words
+ uint32_t e_lfanew = 0; // File address of new exe header
} dos_header_t;
typedef struct coff_header {
- uint16_t machine;
- uint16_t nsects;
- uint32_t modtime;
- uint32_t symoff;
- uint32_t nsyms;
- uint16_t hdrsize;
- uint16_t flags;
+ uint16_t machine = 0;
+ uint16_t nsects = 0;
+ uint32_t modtime = 0;
+ uint32_t symoff = 0;
+ uint32_t nsyms = 0;
+ uint16_t hdrsize = 0;
+ uint16_t flags = 0;
} coff_header_t;
typedef struct data_directory {
- uint32_t vmaddr;
- uint32_t vmsize;
+ uint32_t vmaddr = 0;
+ uint32_t vmsize = 0;
} data_directory_t;
typedef struct coff_opt_header {
};
typedef struct section_header {
- char name[8];
- uint32_t vmsize; // Virtual Size
- uint32_t vmaddr; // Virtual Addr
- uint32_t size; // File size
- uint32_t offset; // File offset
- uint32_t reloff; // Offset to relocations
- uint32_t lineoff; // Offset to line table entries
- uint16_t nreloc; // Number of relocation entries
- uint16_t nline; // Number of line table entries
- uint32_t flags;
+ char name[8] = {};
+ uint32_t vmsize = 0; // Virtual Size
+ uint32_t vmaddr = 0; // Virtual Addr
+ uint32_t size = 0; // File size
+ uint32_t offset = 0; // File offset
+ uint32_t reloff = 0; // Offset to relocations
+ uint32_t lineoff = 0; // Offset to line table entries
+ uint16_t nreloc = 0; // Number of relocation entries
+ uint16_t nline = 0; // Number of line table entries
+ uint32_t flags = 0;
} section_header_t;
typedef struct coff_symbol {
- char name[8];
- uint32_t value;
- uint16_t sect;
- uint16_t type;
- uint8_t storage;
- uint8_t naux;
+ char name[8] = {};
+ uint32_t value = 0;
+ uint16_t sect = 0;
+ uint16_t type = 0;
+ uint8_t storage = 0;
+ uint8_t naux = 0;
} coff_symbol_t;
typedef struct export_directory_entry {
- uint32_t characteristics;
- uint32_t time_date_stamp;
- uint16_t major_version;
- uint16_t minor_version;
- uint32_t name;
- uint32_t base;
- uint32_t number_of_functions;
- uint32_t number_of_names;
- uint32_t address_of_functions;
- uint32_t address_of_names;
- uint32_t address_of_name_ordinals;
+ uint32_t characteristics = 0;
+ uint32_t time_date_stamp = 0;
+ uint16_t major_version = 0;
+ uint16_t minor_version = 0;
+ uint32_t name = 0;
+ uint32_t base = 0;
+ uint32_t number_of_functions = 0;
+ uint32_t number_of_names = 0;
+ uint32_t address_of_functions = 0;
+ uint32_t address_of_names = 0;
+ uint32_t address_of_name_ordinals = 0;
} export_directory_entry;
static bool ParseDOSHeader(lldb_private::DataExtractor &data,
}
::memset(&m_fpr, 0, sizeof(FPR));
+ ::memset(&m_ymm_set, 0, sizeof(YMM));
m_fpr_type = eNotValid;
}
m_packet_timeout(1),
#endif
m_echo_number(0), m_supports_qEcho(eLazyBoolCalculate), m_history(512),
- m_send_acks(true), m_compression_type(CompressionType::None),
- m_listen_url() {
+ m_send_acks(true), m_is_platform(false),
+ m_compression_type(CompressionType::None), m_listen_url() {
}
// Destructor
GDBRemoteCommunication::ScopedTimeout::ScopedTimeout(
GDBRemoteCommunication &gdb_comm, std::chrono::seconds timeout)
- : m_gdb_comm(gdb_comm), m_timeout_modified(false) {
+ : m_gdb_comm(gdb_comm), m_saved_timeout(0), m_timeout_modified(false) {
auto curr_timeout = gdb_comm.GetPacketTimeout();
// Only update the timeout if the timeout is greater than the current
// timeout. If the current timeout is larger, then just use that.
dqo_target_queue = UINT16_MAX;
dqo_target_queue = UINT16_MAX;
dqo_priority = UINT16_MAX;
+ dqo_label_size = 0;
+ dqo_flags_size = 0;
+ dqo_serialnum_size = 0;
+ dqo_width_size = 0;
+ dqo_running_size = 0;
+ dqo_suspend_cnt_size = 0;
+ dqo_target_queue_size = 0;
+ dqo_priority_size = 0;
}
bool IsValid() { return dqo_version != UINT16_MAX; }
lldb_private::EmulateInstruction *inst_emulator)
: UnwindAssembly(arch), m_inst_emulator_up(inst_emulator),
m_range_ptr(nullptr), m_unwind_plan_ptr(nullptr), m_curr_row(),
- m_cfa_reg_info(), m_fp_is_cfa(false), m_register_values(),
- m_pushed_regs(), m_curr_row_modified(false),
+ m_initial_sp(0), m_cfa_reg_info(), m_fp_is_cfa(false),
+ m_register_values(), m_pushed_regs(), m_curr_row_modified(false),
m_forward_branch_offset(0) {
if (m_inst_emulator_up.get()) {
m_inst_emulator_up->SetBaton(this);
: m_cur_insn(nullptr), m_machine_ip_regnum(LLDB_INVALID_REGNUM),
m_machine_sp_regnum(LLDB_INVALID_REGNUM),
m_machine_fp_regnum(LLDB_INVALID_REGNUM),
+ m_machine_alt_fp_regnum(LLDB_INVALID_REGNUM),
m_lldb_ip_regnum(LLDB_INVALID_REGNUM),
m_lldb_sp_regnum(LLDB_INVALID_REGNUM),
m_lldb_fp_regnum(LLDB_INVALID_REGNUM),
-
- m_reg_map(), m_arch(arch), m_cpu(k_cpu_unspecified), m_wordsize(-1),
+ m_lldb_alt_fp_regnum(LLDB_INVALID_REGNUM), m_reg_map(), m_arch(arch),
+ m_cpu(k_cpu_unspecified), m_wordsize(-1),
m_register_map_initialized(false), m_disasm_context() {
m_disasm_context =
::LLVMCreateDisasm(arch.GetTriple().getTriple().c_str(), nullptr,