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Diffstat (limited to 'source/Plugins/SymbolFile/DWARF/DWARFDebugLine.h')
| -rw-r--r-- | source/Plugins/SymbolFile/DWARF/DWARFDebugLine.h | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.h b/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.h deleted file mode 100644 index 0d236ca686b5..000000000000 --- a/source/Plugins/SymbolFile/DWARF/DWARFDebugLine.h +++ /dev/null @@ -1,227 +0,0 @@ -//===-- DWARFDebugLine.h ----------------------------------------*- C++ -*-===// -// -// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. -// See https://llvm.org/LICENSE.txt for license information. -// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// - -#ifndef SymbolFileDWARF_DWARFDebugLine_h_ -#define SymbolFileDWARF_DWARFDebugLine_h_ - -#include <map> -#include <string> -#include <vector> - -#include "lldb/Utility/FileSpec.h" -#include "lldb/lldb-private.h" - -#include "DWARFDataExtractor.h" -#include "DWARFDefines.h" - -#include "llvm/Support/MD5.h" - -class DWARFUnit; -class SymbolFileDWARF; - -// DWARFDebugLine -class DWARFDebugLine { -public: - // FileNameEntry - struct FileNameEntry { - FileNameEntry() - : name(nullptr), dir_idx(0), mod_time(0), length(0), checksum() {} - - const char *name; - dw_sleb128_t dir_idx; - dw_sleb128_t mod_time; - dw_sleb128_t length; - llvm::MD5::MD5Result checksum; - }; - - // Prologue - struct Prologue { - - Prologue() - : total_length(0), version(0), prologue_length(0), min_inst_length(0), - default_is_stmt(0), line_base(0), line_range(0), opcode_base(0), - standard_opcode_lengths(), include_directories(), file_names() {} - - typedef std::shared_ptr<Prologue> shared_ptr; - - uint32_t total_length; // The size in bytes of the statement information for - // this compilation unit (not including the - // total_length field itself). - uint16_t - version; // Version identifier for the statement information format. - - uint8_t address_size; - uint8_t segment_selector_size; - - uint32_t prologue_length; // The number of bytes following the - // prologue_length field to the beginning of the - // first byte of the statement program itself. - uint8_t min_inst_length; // The size in bytes of the smallest target machine - // instruction. Statement program opcodes that - // alter the address register first multiply their - // operands by this value. - uint8_t maximum_operations_per_instruction; // New in DWARF4. The maximum - // number of individual - // operations that may be - // encoded in an instruction. - uint8_t default_is_stmt; // The initial value of theis_stmtregister. - int8_t line_base; // This parameter affects the meaning of the special - // opcodes. See below. - uint8_t line_range; // This parameter affects the meaning of the special - // opcodes. See below. - uint8_t opcode_base; // The number assigned to the first special opcode. - std::vector<uint8_t> standard_opcode_lengths; - std::vector<const char *> include_directories; - std::vector<FileNameEntry> file_names; - - int32_t MaxLineIncrementForSpecialOpcode() const { - return line_base + (int8_t)line_range - 1; - } - bool IsValid() const; - // void Append(BinaryStreamBuf& buff) const; - void Dump(lldb_private::Log *log); - void Clear() { - total_length = version = prologue_length = min_inst_length = line_base = - line_range = opcode_base = 0; - line_base = 0; - standard_opcode_lengths.clear(); - include_directories.clear(); - file_names.clear(); - } - bool GetFile(uint32_t file_idx, const lldb_private::FileSpec &cu_comp_dir, - lldb_private::FileSpec::Style style, - lldb_private::FileSpec &file) const; - }; - - // Standard .debug_line state machine structure - struct Row { - typedef std::vector<Row> collection; - typedef collection::iterator iterator; - typedef collection::const_iterator const_iterator; - - Row(bool default_is_stmt = false); - virtual ~Row() {} - void PostAppend(); - void Reset(bool default_is_stmt); - void Dump(lldb_private::Log *log) const; - static void Insert(Row::collection &state_coll, const Row &state); - - dw_addr_t address; // The program-counter value corresponding to a machine - // instruction generated by the compiler. - uint32_t line; // An unsigned integer indicating a source line number. Lines - // are numbered beginning at 1. The compiler may emit the - // value 0 in cases where an instruction cannot be attributed - // to any source line. - uint16_t column; // An unsigned integer indicating a column number within a - // source line. Columns are numbered beginning at 1. The - // value 0 is reserved to indicate that a statement begins - // at the 'left edge' of the line. - uint16_t file; // An unsigned integer indicating the identity of the source - // file corresponding to a machine instruction. - uint8_t is_stmt : 1, // A boolean indicating that the current instruction is - // the beginning of a statement. - basic_block : 1, // A boolean indicating that the current instruction is - // the beginning of a basic block. - end_sequence : 1, // A boolean indicating that the current address is - // that of the first byte after the end of a sequence - // of target machine instructions. - prologue_end : 1, // A boolean indicating that the current address is - // one (of possibly many) where execution should be - // suspended for an entry breakpoint of a function. - epilogue_begin : 1; // A boolean indicating that the current address is - // one (of possibly many) where execution should be - // suspended for an exit breakpoint of a function. - uint32_t isa; // An unsigned integer whose value encodes the applicable - // instruction set architecture for the current instruction. - }; - - // LineTable - struct LineTable { - typedef std::shared_ptr<LineTable> shared_ptr; - - LineTable() : prologue(), rows() {} - - void AppendRow(const DWARFDebugLine::Row &state); - void Clear() { - prologue.reset(); - rows.clear(); - } - - uint32_t LookupAddress(dw_addr_t address, dw_addr_t cu_high_pc) const; - - Prologue::shared_ptr prologue; - Row::collection rows; - }; - - // State - struct State : public Row { - typedef void (*Callback)(dw_offset_t offset, const State &state, - void *userData); - - // Special row codes used when calling the callback - enum { StartParsingLineTable = 0, DoneParsingLineTable = -1 }; - - State(Prologue::shared_ptr &prologue_sp, lldb_private::Log *log, - Callback callback, void *userData); - - void AppendRowToMatrix(dw_offset_t offset); - - void Finalize(dw_offset_t offset); - - void Reset(); - - Prologue::shared_ptr prologue; - lldb_private::Log *log; - Callback callback; // Callback function that gets called each time an entry - // is to be added to the matrix - void *callbackUserData; - int row; // The row number that starts at zero for the prologue, and - // increases for each row added to the matrix - private: - DISALLOW_COPY_AND_ASSIGN(State); - }; - - static bool - ParseSupportFiles(const lldb::ModuleSP &module_sp, - const lldb_private::DWARFDataExtractor &debug_line_data, - dw_offset_t stmt_list, - lldb_private::FileSpecList &support_files, - DWARFUnit *dwarf_cu); - static bool - ParsePrologue(const lldb_private::DWARFDataExtractor &debug_line_data, - lldb::offset_t *offset_ptr, Prologue *prologue, - DWARFUnit *dwarf_cu = nullptr); - static bool - ParseStatementTable(const lldb_private::DWARFDataExtractor &debug_line_data, - lldb::offset_t *offset_ptr, State::Callback callback, - void *userData, DWARFUnit *dwarf_cu); - static bool - ParseStatementTable(const lldb_private::DWARFDataExtractor &debug_line_data, - lldb::offset_t *offset_ptr, LineTable *line_table, - DWARFUnit *dwarf_cu); - static void Parse(const lldb_private::DWARFDataExtractor &debug_line_data, - DWARFDebugLine::State::Callback callback, void *userData); - // static void AppendLineTableData(const DWARFDebugLine::Prologue* prologue, - // const DWARFDebugLine::Row::collection& state_coll, const uint32_t - // addr_size, BinaryStreamBuf &debug_line_data); - - DWARFDebugLine() : m_lineTableMap() {} - - void Parse(const lldb_private::DWARFDataExtractor &debug_line_data); - void ParseIfNeeded(const lldb_private::DWARFDataExtractor &debug_line_data); - LineTable::shared_ptr GetLineTable(const dw_offset_t offset) const; - -protected: - typedef std::map<dw_offset_t, LineTable::shared_ptr> LineTableMap; - typedef LineTableMap::iterator LineTableIter; - typedef LineTableMap::const_iterator LineTableConstIter; - - LineTableMap m_lineTableMap; -}; - -#endif // SymbolFileDWARF_DWARFDebugLine_h_ |