diff options
Diffstat (limited to 'contrib/llvm-project/llvm/lib/ObjectYAML/DWARFVisitor.cpp')
| -rw-r--r-- | contrib/llvm-project/llvm/lib/ObjectYAML/DWARFVisitor.cpp | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/contrib/llvm-project/llvm/lib/ObjectYAML/DWARFVisitor.cpp b/contrib/llvm-project/llvm/lib/ObjectYAML/DWARFVisitor.cpp deleted file mode 100644 index a2dd37b5fe32..000000000000 --- a/contrib/llvm-project/llvm/lib/ObjectYAML/DWARFVisitor.cpp +++ /dev/null @@ -1,196 +0,0 @@ -//===--- DWARFVisitor.cpp ---------------------------------------*- 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 -// -//===----------------------------------------------------------------------===// -// -//===----------------------------------------------------------------------===// - -#include "DWARFVisitor.h" -#include "llvm/BinaryFormat/Dwarf.h" -#include "llvm/ObjectYAML/DWARFYAML.h" -#include "llvm/Support/Errc.h" -#include "llvm/Support/Error.h" - -using namespace llvm; - -template <typename T> -void DWARFYAML::VisitorImpl<T>::onVariableSizeValue(uint64_t U, unsigned Size) { - switch (Size) { - case 8: - onValue((uint64_t)U); - break; - case 4: - onValue((uint32_t)U); - break; - case 2: - onValue((uint16_t)U); - break; - case 1: - onValue((uint8_t)U); - break; - default: - llvm_unreachable("Invalid integer write size."); - } -} - -static unsigned getOffsetSize(const DWARFYAML::Unit &Unit) { - return Unit.Format == dwarf::DWARF64 ? 8 : 4; -} - -static unsigned getRefSize(const DWARFYAML::Unit &Unit) { - if (Unit.Version == 2) - return Unit.AddrSize; - return getOffsetSize(Unit); -} - -template <typename T> Error DWARFYAML::VisitorImpl<T>::traverseDebugInfo() { - for (auto &Unit : DebugInfo.CompileUnits) { - onStartCompileUnit(Unit); - if (Unit.Entries.empty()) - continue; - - for (auto &Entry : Unit.Entries) { - onStartDIE(Unit, Entry); - uint32_t AbbrCode = Entry.AbbrCode; - if (AbbrCode == 0 || Entry.Values.empty()) - continue; - - if (AbbrCode > DebugInfo.AbbrevDecls.size()) - return createStringError( - errc::invalid_argument, - "abbrev code must be less than or equal to the number of " - "entries in abbreviation table"); - const DWARFYAML::Abbrev &Abbrev = DebugInfo.AbbrevDecls[AbbrCode - 1]; - auto FormVal = Entry.Values.begin(); - auto AbbrForm = Abbrev.Attributes.begin(); - for (; - FormVal != Entry.Values.end() && AbbrForm != Abbrev.Attributes.end(); - ++FormVal, ++AbbrForm) { - onForm(*AbbrForm, *FormVal); - dwarf::Form Form = AbbrForm->Form; - bool Indirect; - do { - Indirect = false; - switch (Form) { - case dwarf::DW_FORM_addr: - onVariableSizeValue(FormVal->Value, Unit.AddrSize); - break; - case dwarf::DW_FORM_ref_addr: - onVariableSizeValue(FormVal->Value, getRefSize(Unit)); - break; - case dwarf::DW_FORM_exprloc: - case dwarf::DW_FORM_block: - onValue((uint64_t)FormVal->BlockData.size(), true); - onValue( - MemoryBufferRef(StringRef((const char *)&FormVal->BlockData[0], - FormVal->BlockData.size()), - "")); - break; - case dwarf::DW_FORM_block1: { - auto writeSize = FormVal->BlockData.size(); - onValue((uint8_t)writeSize); - onValue( - MemoryBufferRef(StringRef((const char *)&FormVal->BlockData[0], - FormVal->BlockData.size()), - "")); - break; - } - case dwarf::DW_FORM_block2: { - auto writeSize = FormVal->BlockData.size(); - onValue((uint16_t)writeSize); - onValue( - MemoryBufferRef(StringRef((const char *)&FormVal->BlockData[0], - FormVal->BlockData.size()), - "")); - break; - } - case dwarf::DW_FORM_block4: { - auto writeSize = FormVal->BlockData.size(); - onValue((uint32_t)writeSize); - onValue( - MemoryBufferRef(StringRef((const char *)&FormVal->BlockData[0], - FormVal->BlockData.size()), - "")); - break; - } - case dwarf::DW_FORM_strx: - case dwarf::DW_FORM_addrx: - case dwarf::DW_FORM_rnglistx: - case dwarf::DW_FORM_loclistx: - onValue((uint64_t)FormVal->Value, /*LEB=*/true); - break; - case dwarf::DW_FORM_data1: - case dwarf::DW_FORM_ref1: - case dwarf::DW_FORM_flag: - case dwarf::DW_FORM_strx1: - case dwarf::DW_FORM_addrx1: - onValue((uint8_t)FormVal->Value); - break; - case dwarf::DW_FORM_data2: - case dwarf::DW_FORM_ref2: - case dwarf::DW_FORM_strx2: - case dwarf::DW_FORM_addrx2: - onValue((uint16_t)FormVal->Value); - break; - case dwarf::DW_FORM_data4: - case dwarf::DW_FORM_ref4: - case dwarf::DW_FORM_ref_sup4: - case dwarf::DW_FORM_strx4: - case dwarf::DW_FORM_addrx4: - onValue((uint32_t)FormVal->Value); - break; - case dwarf::DW_FORM_data8: - case dwarf::DW_FORM_ref8: - case dwarf::DW_FORM_ref_sup8: - onValue((uint64_t)FormVal->Value); - break; - case dwarf::DW_FORM_sdata: - onValue((int64_t)FormVal->Value, true); - break; - case dwarf::DW_FORM_udata: - case dwarf::DW_FORM_ref_udata: - onValue((uint64_t)FormVal->Value, true); - break; - case dwarf::DW_FORM_string: - onValue(FormVal->CStr); - break; - case dwarf::DW_FORM_indirect: - onValue((uint64_t)FormVal->Value, true); - Indirect = true; - Form = static_cast<dwarf::Form>((uint64_t)FormVal->Value); - ++FormVal; - break; - case dwarf::DW_FORM_strp: - case dwarf::DW_FORM_sec_offset: - case dwarf::DW_FORM_GNU_ref_alt: - case dwarf::DW_FORM_GNU_strp_alt: - case dwarf::DW_FORM_line_strp: - case dwarf::DW_FORM_strp_sup: - onVariableSizeValue(FormVal->Value, getOffsetSize(Unit)); - break; - case dwarf::DW_FORM_ref_sig8: - onValue((uint64_t)FormVal->Value); - break; - case dwarf::DW_FORM_GNU_addr_index: - case dwarf::DW_FORM_GNU_str_index: - onValue((uint64_t)FormVal->Value, true); - break; - default: - break; - } - } while (Indirect); - } - onEndDIE(Unit, Entry); - } - onEndCompileUnit(Unit); - } - - return Error::success(); -} - -// Explicitly instantiate the two template expansions. -template class DWARFYAML::VisitorImpl<DWARFYAML::Data>; -template class DWARFYAML::VisitorImpl<const DWARFYAML::Data>; |