808142876c
Summary: A *.cpp file header in LLDB (and in LLDB) should like this: ``` //===-- TestUtilities.cpp -------------------------------------------------===// ``` However in LLDB most of our source files have arbitrary changes to this format and these changes are spreading through LLDB as folks usually just use the existing source files as templates for their new files (most notably the unnecessary editor language indicator `-*- C++ -*-` is spreading and in every review someone is pointing out that this is wrong, resulting in people pointing out that this is done in the same way in other files). This patch removes most of these inconsistencies including the editor language indicators, all the different missing/additional '-' characters, files that center the file name, missing trailing `===//` (mostly caused by clang-format breaking the line). Reviewers: aprantl, espindola, jfb, shafik, JDevlieghere Reviewed By: JDevlieghere Subscribers: dexonsmith, wuzish, emaste, sdardis, nemanjai, kbarton, MaskRay, atanasyan, arphaman, jfb, abidh, jsji, JDevlieghere, usaxena95, lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D73258
127 lines
4.3 KiB
C++
127 lines
4.3 KiB
C++
//===-- DWARFDebugMacro.cpp -----------------------------------------------===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "DWARFDebugMacro.h"
|
|
#include "SymbolFileDWARF.h"
|
|
|
|
#include "lldb/Symbol/DebugMacros.h"
|
|
|
|
#include "DWARFDataExtractor.h"
|
|
|
|
using namespace lldb_private;
|
|
|
|
DWARFDebugMacroHeader
|
|
DWARFDebugMacroHeader::ParseHeader(const DWARFDataExtractor &debug_macro_data,
|
|
lldb::offset_t *offset) {
|
|
DWARFDebugMacroHeader header;
|
|
|
|
// Skip over the version field in header.
|
|
header.m_version = debug_macro_data.GetU16(offset);
|
|
|
|
uint8_t flags = debug_macro_data.GetU8(offset);
|
|
header.m_offset_is_64_bit = (flags & OFFSET_SIZE_MASK) != 0;
|
|
|
|
if (flags & DEBUG_LINE_OFFSET_MASK) {
|
|
if (header.m_offset_is_64_bit)
|
|
header.m_debug_line_offset = debug_macro_data.GetU64(offset);
|
|
else
|
|
header.m_debug_line_offset = debug_macro_data.GetU32(offset);
|
|
}
|
|
|
|
// Skip over the operands table if it is present.
|
|
if (flags & OPCODE_OPERANDS_TABLE_MASK)
|
|
SkipOperandTable(debug_macro_data, offset);
|
|
|
|
return header;
|
|
}
|
|
|
|
void DWARFDebugMacroHeader::SkipOperandTable(
|
|
const DWARFDataExtractor &debug_macro_data, lldb::offset_t *offset) {
|
|
uint8_t entry_count = debug_macro_data.GetU8(offset);
|
|
for (uint8_t i = 0; i < entry_count; i++) {
|
|
// Skip over the opcode number.
|
|
debug_macro_data.GetU8(offset);
|
|
|
|
uint64_t operand_count = debug_macro_data.GetULEB128(offset);
|
|
|
|
for (uint64_t j = 0; j < operand_count; j++) {
|
|
// Skip over the operand form
|
|
debug_macro_data.GetU8(offset);
|
|
}
|
|
}
|
|
}
|
|
|
|
void DWARFDebugMacroEntry::ReadMacroEntries(
|
|
const DWARFDataExtractor &debug_macro_data,
|
|
const DWARFDataExtractor &debug_str_data, const bool offset_is_64_bit,
|
|
lldb::offset_t *offset, SymbolFileDWARF *sym_file_dwarf,
|
|
DebugMacrosSP &debug_macros_sp) {
|
|
llvm::dwarf::MacroEntryType type =
|
|
static_cast<llvm::dwarf::MacroEntryType>(debug_macro_data.GetU8(offset));
|
|
while (type != 0) {
|
|
lldb::offset_t new_offset = 0, str_offset = 0;
|
|
uint32_t line = 0;
|
|
const char *macro_str = nullptr;
|
|
uint32_t debug_line_file_idx = 0;
|
|
|
|
switch (type) {
|
|
case DW_MACRO_define:
|
|
case DW_MACRO_undef:
|
|
line = debug_macro_data.GetULEB128(offset);
|
|
macro_str = debug_macro_data.GetCStr(offset);
|
|
if (type == DW_MACRO_define)
|
|
debug_macros_sp->AddMacroEntry(
|
|
DebugMacroEntry::CreateDefineEntry(line, macro_str));
|
|
else
|
|
debug_macros_sp->AddMacroEntry(
|
|
DebugMacroEntry::CreateUndefEntry(line, macro_str));
|
|
break;
|
|
case DW_MACRO_define_strp:
|
|
case DW_MACRO_undef_strp:
|
|
line = debug_macro_data.GetULEB128(offset);
|
|
if (offset_is_64_bit)
|
|
str_offset = debug_macro_data.GetU64(offset);
|
|
else
|
|
str_offset = debug_macro_data.GetU32(offset);
|
|
macro_str = debug_str_data.GetCStr(&str_offset);
|
|
if (type == DW_MACRO_define_strp)
|
|
debug_macros_sp->AddMacroEntry(
|
|
DebugMacroEntry::CreateDefineEntry(line, macro_str));
|
|
else
|
|
debug_macros_sp->AddMacroEntry(
|
|
DebugMacroEntry::CreateUndefEntry(line, macro_str));
|
|
break;
|
|
case DW_MACRO_start_file:
|
|
line = debug_macro_data.GetULEB128(offset);
|
|
debug_line_file_idx = debug_macro_data.GetULEB128(offset);
|
|
debug_macros_sp->AddMacroEntry(
|
|
DebugMacroEntry::CreateStartFileEntry(line, debug_line_file_idx));
|
|
break;
|
|
case DW_MACRO_end_file:
|
|
// This operation has no operands.
|
|
debug_macros_sp->AddMacroEntry(DebugMacroEntry::CreateEndFileEntry());
|
|
break;
|
|
case DW_MACRO_import:
|
|
if (offset_is_64_bit)
|
|
new_offset = debug_macro_data.GetU64(offset);
|
|
else
|
|
new_offset = debug_macro_data.GetU32(offset);
|
|
debug_macros_sp->AddMacroEntry(DebugMacroEntry::CreateIndirectEntry(
|
|
sym_file_dwarf->ParseDebugMacros(&new_offset)));
|
|
break;
|
|
default:
|
|
// TODO: Add support for other standard operations.
|
|
// TODO: Provide mechanism to hook handling of non-standard/extension
|
|
// operands.
|
|
return;
|
|
}
|
|
type = static_cast<llvm::dwarf::MacroEntryType>(
|
|
debug_macro_data.GetU8(offset));
|
|
}
|
|
}
|