mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 10:42:39 +01:00
ae65e281f3
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
553 lines
19 KiB
C++
553 lines
19 KiB
C++
//===------ macho2yaml.cpp - obj2yaml conversion tool -----------*- 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 "Error.h"
|
|
#include "obj2yaml.h"
|
|
#include "llvm/DebugInfo/DWARF/DWARFContext.h"
|
|
#include "llvm/Object/MachOUniversal.h"
|
|
#include "llvm/ObjectYAML/ObjectYAML.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include "llvm/Support/LEB128.h"
|
|
|
|
#include <string.h> // for memcpy
|
|
|
|
using namespace llvm;
|
|
|
|
class MachODumper {
|
|
|
|
template <typename StructType>
|
|
const char *processLoadCommandData(
|
|
MachOYAML::LoadCommand &LC,
|
|
const llvm::object::MachOObjectFile::LoadCommandInfo &LoadCmd);
|
|
|
|
const object::MachOObjectFile &Obj;
|
|
void dumpHeader(std::unique_ptr<MachOYAML::Object> &Y);
|
|
void dumpLoadCommands(std::unique_ptr<MachOYAML::Object> &Y);
|
|
void dumpLinkEdit(std::unique_ptr<MachOYAML::Object> &Y);
|
|
void dumpRebaseOpcodes(std::unique_ptr<MachOYAML::Object> &Y);
|
|
void dumpBindOpcodes(std::vector<MachOYAML::BindOpcode> &BindOpcodes,
|
|
ArrayRef<uint8_t> OpcodeBuffer, bool Lazy = false);
|
|
void dumpExportTrie(std::unique_ptr<MachOYAML::Object> &Y);
|
|
void dumpSymbols(std::unique_ptr<MachOYAML::Object> &Y);
|
|
void dumpDebugAbbrev(DWARFContext &DCtx,
|
|
std::unique_ptr<MachOYAML::Object> &Y);
|
|
void dumpDebugStrings(DWARFContext &DCtx,
|
|
std::unique_ptr<MachOYAML::Object> &Y);
|
|
|
|
public:
|
|
MachODumper(const object::MachOObjectFile &O) : Obj(O) {}
|
|
Expected<std::unique_ptr<MachOYAML::Object>> dump();
|
|
};
|
|
|
|
#define HANDLE_LOAD_COMMAND(LCName, LCValue, LCStruct) \
|
|
case MachO::LCName: \
|
|
memcpy((void *) & (LC.Data.LCStruct##_data), LoadCmd.Ptr, \
|
|
sizeof(MachO::LCStruct)); \
|
|
if (Obj.isLittleEndian() != sys::IsLittleEndianHost) \
|
|
MachO::swapStruct(LC.Data.LCStruct##_data); \
|
|
EndPtr = processLoadCommandData<MachO::LCStruct>(LC, LoadCmd); \
|
|
break;
|
|
|
|
template <typename SectionType>
|
|
MachOYAML::Section constructSectionCommon(SectionType Sec) {
|
|
MachOYAML::Section TempSec;
|
|
memcpy(reinterpret_cast<void *>(&TempSec.sectname[0]), &Sec.sectname[0], 16);
|
|
memcpy(reinterpret_cast<void *>(&TempSec.segname[0]), &Sec.segname[0], 16);
|
|
TempSec.addr = Sec.addr;
|
|
TempSec.size = Sec.size;
|
|
TempSec.offset = Sec.offset;
|
|
TempSec.align = Sec.align;
|
|
TempSec.reloff = Sec.reloff;
|
|
TempSec.nreloc = Sec.nreloc;
|
|
TempSec.flags = Sec.flags;
|
|
TempSec.reserved1 = Sec.reserved1;
|
|
TempSec.reserved2 = Sec.reserved2;
|
|
TempSec.reserved3 = 0;
|
|
return TempSec;
|
|
}
|
|
|
|
template <typename SectionType>
|
|
MachOYAML::Section constructSection(SectionType Sec);
|
|
|
|
template <> MachOYAML::Section constructSection(MachO::section Sec) {
|
|
MachOYAML::Section TempSec = constructSectionCommon(Sec);
|
|
TempSec.reserved3 = 0;
|
|
return TempSec;
|
|
}
|
|
|
|
template <> MachOYAML::Section constructSection(MachO::section_64 Sec) {
|
|
MachOYAML::Section TempSec = constructSectionCommon(Sec);
|
|
TempSec.reserved3 = Sec.reserved3;
|
|
return TempSec;
|
|
}
|
|
|
|
template <typename SectionType, typename SegmentType>
|
|
const char *
|
|
extractSections(const llvm::object::MachOObjectFile::LoadCommandInfo &LoadCmd,
|
|
std::vector<MachOYAML::Section> &Sections,
|
|
bool IsLittleEndian) {
|
|
auto End = LoadCmd.Ptr + LoadCmd.C.cmdsize;
|
|
const SectionType *Curr =
|
|
reinterpret_cast<const SectionType *>(LoadCmd.Ptr + sizeof(SegmentType));
|
|
for (; reinterpret_cast<const void *>(Curr) < End; Curr++) {
|
|
if (IsLittleEndian != sys::IsLittleEndianHost) {
|
|
SectionType Sec;
|
|
memcpy((void *)&Sec, Curr, sizeof(SectionType));
|
|
MachO::swapStruct(Sec);
|
|
Sections.push_back(constructSection(Sec));
|
|
} else {
|
|
Sections.push_back(constructSection(*Curr));
|
|
}
|
|
}
|
|
return reinterpret_cast<const char *>(Curr);
|
|
}
|
|
|
|
template <typename StructType>
|
|
const char *MachODumper::processLoadCommandData(
|
|
MachOYAML::LoadCommand &LC,
|
|
const llvm::object::MachOObjectFile::LoadCommandInfo &LoadCmd) {
|
|
return LoadCmd.Ptr + sizeof(StructType);
|
|
}
|
|
|
|
template <>
|
|
const char *MachODumper::processLoadCommandData<MachO::segment_command>(
|
|
MachOYAML::LoadCommand &LC,
|
|
const llvm::object::MachOObjectFile::LoadCommandInfo &LoadCmd) {
|
|
return extractSections<MachO::section, MachO::segment_command>(
|
|
LoadCmd, LC.Sections, Obj.isLittleEndian());
|
|
}
|
|
|
|
template <>
|
|
const char *MachODumper::processLoadCommandData<MachO::segment_command_64>(
|
|
MachOYAML::LoadCommand &LC,
|
|
const llvm::object::MachOObjectFile::LoadCommandInfo &LoadCmd) {
|
|
return extractSections<MachO::section_64, MachO::segment_command_64>(
|
|
LoadCmd, LC.Sections, Obj.isLittleEndian());
|
|
}
|
|
|
|
template <typename StructType>
|
|
const char *
|
|
readString(MachOYAML::LoadCommand &LC,
|
|
const llvm::object::MachOObjectFile::LoadCommandInfo &LoadCmd) {
|
|
auto Start = LoadCmd.Ptr + sizeof(StructType);
|
|
auto MaxSize = LoadCmd.C.cmdsize - sizeof(StructType);
|
|
auto Size = strnlen(Start, MaxSize);
|
|
LC.PayloadString = StringRef(Start, Size).str();
|
|
return Start + Size;
|
|
}
|
|
|
|
template <>
|
|
const char *MachODumper::processLoadCommandData<MachO::dylib_command>(
|
|
MachOYAML::LoadCommand &LC,
|
|
const llvm::object::MachOObjectFile::LoadCommandInfo &LoadCmd) {
|
|
return readString<MachO::dylib_command>(LC, LoadCmd);
|
|
}
|
|
|
|
template <>
|
|
const char *MachODumper::processLoadCommandData<MachO::dylinker_command>(
|
|
MachOYAML::LoadCommand &LC,
|
|
const llvm::object::MachOObjectFile::LoadCommandInfo &LoadCmd) {
|
|
return readString<MachO::dylinker_command>(LC, LoadCmd);
|
|
}
|
|
|
|
template <>
|
|
const char *MachODumper::processLoadCommandData<MachO::rpath_command>(
|
|
MachOYAML::LoadCommand &LC,
|
|
const llvm::object::MachOObjectFile::LoadCommandInfo &LoadCmd) {
|
|
return readString<MachO::rpath_command>(LC, LoadCmd);
|
|
}
|
|
|
|
template <>
|
|
const char *MachODumper::processLoadCommandData<MachO::build_version_command>(
|
|
MachOYAML::LoadCommand &LC,
|
|
const llvm::object::MachOObjectFile::LoadCommandInfo &LoadCmd) {
|
|
auto Start = LoadCmd.Ptr + sizeof(MachO::build_version_command);
|
|
auto NTools = LC.Data.build_version_command_data.ntools;
|
|
for (unsigned i = 0; i < NTools; ++i) {
|
|
auto Curr = Start + i * sizeof(MachO::build_tool_version);
|
|
MachO::build_tool_version BV;
|
|
memcpy((void *)&BV, Curr, sizeof(MachO::build_tool_version));
|
|
if (Obj.isLittleEndian() != sys::IsLittleEndianHost)
|
|
MachO::swapStruct(BV);
|
|
LC.Tools.push_back(BV);
|
|
}
|
|
return Start + NTools * sizeof(MachO::build_tool_version);
|
|
}
|
|
|
|
Expected<std::unique_ptr<MachOYAML::Object>> MachODumper::dump() {
|
|
auto Y = make_unique<MachOYAML::Object>();
|
|
Y->IsLittleEndian = Obj.isLittleEndian();
|
|
dumpHeader(Y);
|
|
dumpLoadCommands(Y);
|
|
dumpLinkEdit(Y);
|
|
|
|
std::unique_ptr<DWARFContext> DICtx = DWARFContext::create(Obj);
|
|
if (auto Err = dwarf2yaml(*DICtx, Y->DWARF))
|
|
return errorCodeToError(Err);
|
|
return std::move(Y);
|
|
}
|
|
|
|
void MachODumper::dumpHeader(std::unique_ptr<MachOYAML::Object> &Y) {
|
|
Y->Header.magic = Obj.getHeader().magic;
|
|
Y->Header.cputype = Obj.getHeader().cputype;
|
|
Y->Header.cpusubtype = Obj.getHeader().cpusubtype;
|
|
Y->Header.filetype = Obj.getHeader().filetype;
|
|
Y->Header.ncmds = Obj.getHeader().ncmds;
|
|
Y->Header.sizeofcmds = Obj.getHeader().sizeofcmds;
|
|
Y->Header.flags = Obj.getHeader().flags;
|
|
Y->Header.reserved = 0;
|
|
}
|
|
|
|
void MachODumper::dumpLoadCommands(std::unique_ptr<MachOYAML::Object> &Y) {
|
|
for (auto LoadCmd : Obj.load_commands()) {
|
|
MachOYAML::LoadCommand LC;
|
|
const char *EndPtr = LoadCmd.Ptr;
|
|
switch (LoadCmd.C.cmd) {
|
|
default:
|
|
memcpy((void *)&(LC.Data.load_command_data), LoadCmd.Ptr,
|
|
sizeof(MachO::load_command));
|
|
if (Obj.isLittleEndian() != sys::IsLittleEndianHost)
|
|
MachO::swapStruct(LC.Data.load_command_data);
|
|
EndPtr = processLoadCommandData<MachO::load_command>(LC, LoadCmd);
|
|
break;
|
|
#include "llvm/BinaryFormat/MachO.def"
|
|
}
|
|
auto RemainingBytes = LoadCmd.C.cmdsize - (EndPtr - LoadCmd.Ptr);
|
|
if (!std::all_of(EndPtr, &EndPtr[RemainingBytes],
|
|
[](const char C) { return C == 0; })) {
|
|
LC.PayloadBytes.insert(LC.PayloadBytes.end(), EndPtr,
|
|
&EndPtr[RemainingBytes]);
|
|
RemainingBytes = 0;
|
|
}
|
|
LC.ZeroPadBytes = RemainingBytes;
|
|
Y->LoadCommands.push_back(std::move(LC));
|
|
}
|
|
}
|
|
|
|
void MachODumper::dumpLinkEdit(std::unique_ptr<MachOYAML::Object> &Y) {
|
|
dumpRebaseOpcodes(Y);
|
|
dumpBindOpcodes(Y->LinkEdit.BindOpcodes, Obj.getDyldInfoBindOpcodes());
|
|
dumpBindOpcodes(Y->LinkEdit.WeakBindOpcodes,
|
|
Obj.getDyldInfoWeakBindOpcodes());
|
|
dumpBindOpcodes(Y->LinkEdit.LazyBindOpcodes, Obj.getDyldInfoLazyBindOpcodes(),
|
|
true);
|
|
dumpExportTrie(Y);
|
|
dumpSymbols(Y);
|
|
}
|
|
|
|
void MachODumper::dumpRebaseOpcodes(std::unique_ptr<MachOYAML::Object> &Y) {
|
|
MachOYAML::LinkEditData &LEData = Y->LinkEdit;
|
|
|
|
auto RebaseOpcodes = Obj.getDyldInfoRebaseOpcodes();
|
|
for (auto OpCode = RebaseOpcodes.begin(); OpCode != RebaseOpcodes.end();
|
|
++OpCode) {
|
|
MachOYAML::RebaseOpcode RebaseOp;
|
|
RebaseOp.Opcode =
|
|
static_cast<MachO::RebaseOpcode>(*OpCode & MachO::REBASE_OPCODE_MASK);
|
|
RebaseOp.Imm = *OpCode & MachO::REBASE_IMMEDIATE_MASK;
|
|
|
|
unsigned Count;
|
|
uint64_t ULEB = 0;
|
|
|
|
switch (RebaseOp.Opcode) {
|
|
case MachO::REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB:
|
|
|
|
ULEB = decodeULEB128(OpCode + 1, &Count);
|
|
RebaseOp.ExtraData.push_back(ULEB);
|
|
OpCode += Count;
|
|
LLVM_FALLTHROUGH;
|
|
// Intentionally no break here -- This opcode has two ULEB values
|
|
case MachO::REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB:
|
|
case MachO::REBASE_OPCODE_ADD_ADDR_ULEB:
|
|
case MachO::REBASE_OPCODE_DO_REBASE_ULEB_TIMES:
|
|
case MachO::REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB:
|
|
|
|
ULEB = decodeULEB128(OpCode + 1, &Count);
|
|
RebaseOp.ExtraData.push_back(ULEB);
|
|
OpCode += Count;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
LEData.RebaseOpcodes.push_back(RebaseOp);
|
|
|
|
if (RebaseOp.Opcode == MachO::REBASE_OPCODE_DONE)
|
|
break;
|
|
}
|
|
}
|
|
|
|
StringRef ReadStringRef(const uint8_t *Start) {
|
|
const uint8_t *Itr = Start;
|
|
for (; *Itr; ++Itr)
|
|
;
|
|
return StringRef(reinterpret_cast<const char *>(Start), Itr - Start);
|
|
}
|
|
|
|
void MachODumper::dumpBindOpcodes(
|
|
std::vector<MachOYAML::BindOpcode> &BindOpcodes,
|
|
ArrayRef<uint8_t> OpcodeBuffer, bool Lazy) {
|
|
for (auto OpCode = OpcodeBuffer.begin(); OpCode != OpcodeBuffer.end();
|
|
++OpCode) {
|
|
MachOYAML::BindOpcode BindOp;
|
|
BindOp.Opcode =
|
|
static_cast<MachO::BindOpcode>(*OpCode & MachO::BIND_OPCODE_MASK);
|
|
BindOp.Imm = *OpCode & MachO::BIND_IMMEDIATE_MASK;
|
|
|
|
unsigned Count;
|
|
uint64_t ULEB = 0;
|
|
int64_t SLEB = 0;
|
|
|
|
switch (BindOp.Opcode) {
|
|
case MachO::BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB:
|
|
ULEB = decodeULEB128(OpCode + 1, &Count);
|
|
BindOp.ULEBExtraData.push_back(ULEB);
|
|
OpCode += Count;
|
|
LLVM_FALLTHROUGH;
|
|
// Intentionally no break here -- this opcode has two ULEB values
|
|
|
|
case MachO::BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB:
|
|
case MachO::BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB:
|
|
case MachO::BIND_OPCODE_ADD_ADDR_ULEB:
|
|
case MachO::BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB:
|
|
ULEB = decodeULEB128(OpCode + 1, &Count);
|
|
BindOp.ULEBExtraData.push_back(ULEB);
|
|
OpCode += Count;
|
|
break;
|
|
|
|
case MachO::BIND_OPCODE_SET_ADDEND_SLEB:
|
|
SLEB = decodeSLEB128(OpCode + 1, &Count);
|
|
BindOp.SLEBExtraData.push_back(SLEB);
|
|
OpCode += Count;
|
|
break;
|
|
|
|
case MachO::BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM:
|
|
BindOp.Symbol = ReadStringRef(OpCode + 1);
|
|
OpCode += BindOp.Symbol.size() + 1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
BindOpcodes.push_back(BindOp);
|
|
|
|
// Lazy bindings have DONE opcodes between operations, so we need to keep
|
|
// processing after a DONE.
|
|
if (!Lazy && BindOp.Opcode == MachO::BIND_OPCODE_DONE)
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
* /brief processes a node from the export trie, and its children.
|
|
*
|
|
* To my knowledge there is no documentation of the encoded format of this data
|
|
* other than in the heads of the Apple linker engineers. To that end hopefully
|
|
* this comment and the implementation below can serve to light the way for
|
|
* anyone crazy enough to come down this path in the future.
|
|
*
|
|
* This function reads and preserves the trie structure of the export trie. To
|
|
* my knowledge there is no code anywhere else that reads the data and preserves
|
|
* the Trie. LD64 (sources available at opensource.apple.com) has a similar
|
|
* implementation that parses the export trie into a vector. That code as well
|
|
* as LLVM's libObject MachO implementation were the basis for this.
|
|
*
|
|
* The export trie is an encoded trie. The node serialization is a bit awkward.
|
|
* The below pseudo-code is the best description I've come up with for it.
|
|
*
|
|
* struct SerializedNode {
|
|
* ULEB128 TerminalSize;
|
|
* struct TerminalData { <-- This is only present if TerminalSize > 0
|
|
* ULEB128 Flags;
|
|
* ULEB128 Address; <-- Present if (! Flags & REEXPORT )
|
|
* ULEB128 Other; <-- Present if ( Flags & REEXPORT ||
|
|
* Flags & STUB_AND_RESOLVER )
|
|
* char[] ImportName; <-- Present if ( Flags & REEXPORT )
|
|
* }
|
|
* uint8_t ChildrenCount;
|
|
* Pair<char[], ULEB128> ChildNameOffsetPair[ChildrenCount];
|
|
* SerializedNode Children[ChildrenCount]
|
|
* }
|
|
*
|
|
* Terminal nodes are nodes that represent actual exports. They can appear
|
|
* anywhere in the tree other than at the root; they do not need to be leaf
|
|
* nodes. When reading the data out of the trie this routine reads it in-order,
|
|
* but it puts the child names and offsets directly into the child nodes. This
|
|
* results in looping over the children twice during serialization and
|
|
* de-serialization, but it makes the YAML representation more human readable.
|
|
*
|
|
* Below is an example of the graph from a "Hello World" executable:
|
|
*
|
|
* -------
|
|
* | '' |
|
|
* -------
|
|
* |
|
|
* -------
|
|
* | '_' |
|
|
* -------
|
|
* |
|
|
* |----------------------------------------|
|
|
* | |
|
|
* ------------------------ ---------------------
|
|
* | '_mh_execute_header' | | 'main' |
|
|
* | Flags: 0x00000000 | | Flags: 0x00000000 |
|
|
* | Addr: 0x00000000 | | Addr: 0x00001160 |
|
|
* ------------------------ ---------------------
|
|
*
|
|
* This graph represents the trie for the exports "__mh_execute_header" and
|
|
* "_main". In the graph only the "_main" and "__mh_execute_header" nodes are
|
|
* terminal.
|
|
*/
|
|
|
|
const uint8_t *processExportNode(const uint8_t *CurrPtr,
|
|
const uint8_t *const End,
|
|
MachOYAML::ExportEntry &Entry) {
|
|
if (CurrPtr >= End)
|
|
return CurrPtr;
|
|
unsigned Count = 0;
|
|
Entry.TerminalSize = decodeULEB128(CurrPtr, &Count);
|
|
CurrPtr += Count;
|
|
if (Entry.TerminalSize != 0) {
|
|
Entry.Flags = decodeULEB128(CurrPtr, &Count);
|
|
CurrPtr += Count;
|
|
if (Entry.Flags & MachO::EXPORT_SYMBOL_FLAGS_REEXPORT) {
|
|
Entry.Address = 0;
|
|
Entry.Other = decodeULEB128(CurrPtr, &Count);
|
|
CurrPtr += Count;
|
|
Entry.ImportName = std::string(reinterpret_cast<const char *>(CurrPtr));
|
|
} else {
|
|
Entry.Address = decodeULEB128(CurrPtr, &Count);
|
|
CurrPtr += Count;
|
|
if (Entry.Flags & MachO::EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER) {
|
|
Entry.Other = decodeULEB128(CurrPtr, &Count);
|
|
CurrPtr += Count;
|
|
} else
|
|
Entry.Other = 0;
|
|
}
|
|
}
|
|
uint8_t childrenCount = *CurrPtr++;
|
|
if (childrenCount == 0)
|
|
return CurrPtr;
|
|
|
|
Entry.Children.insert(Entry.Children.begin(), (size_t)childrenCount,
|
|
MachOYAML::ExportEntry());
|
|
for (auto &Child : Entry.Children) {
|
|
Child.Name = std::string(reinterpret_cast<const char *>(CurrPtr));
|
|
CurrPtr += Child.Name.length() + 1;
|
|
Child.NodeOffset = decodeULEB128(CurrPtr, &Count);
|
|
CurrPtr += Count;
|
|
}
|
|
for (auto &Child : Entry.Children) {
|
|
CurrPtr = processExportNode(CurrPtr, End, Child);
|
|
}
|
|
return CurrPtr;
|
|
}
|
|
|
|
void MachODumper::dumpExportTrie(std::unique_ptr<MachOYAML::Object> &Y) {
|
|
MachOYAML::LinkEditData &LEData = Y->LinkEdit;
|
|
auto ExportsTrie = Obj.getDyldInfoExportsTrie();
|
|
processExportNode(ExportsTrie.begin(), ExportsTrie.end(), LEData.ExportTrie);
|
|
}
|
|
|
|
template <typename nlist_t>
|
|
MachOYAML::NListEntry constructNameList(const nlist_t &nlist) {
|
|
MachOYAML::NListEntry NL;
|
|
NL.n_strx = nlist.n_strx;
|
|
NL.n_type = nlist.n_type;
|
|
NL.n_sect = nlist.n_sect;
|
|
NL.n_desc = nlist.n_desc;
|
|
NL.n_value = nlist.n_value;
|
|
return NL;
|
|
}
|
|
|
|
void MachODumper::dumpSymbols(std::unique_ptr<MachOYAML::Object> &Y) {
|
|
MachOYAML::LinkEditData &LEData = Y->LinkEdit;
|
|
|
|
for (auto Symbol : Obj.symbols()) {
|
|
MachOYAML::NListEntry NLE =
|
|
Obj.is64Bit()
|
|
? constructNameList<MachO::nlist_64>(
|
|
Obj.getSymbol64TableEntry(Symbol.getRawDataRefImpl()))
|
|
: constructNameList<MachO::nlist>(
|
|
Obj.getSymbolTableEntry(Symbol.getRawDataRefImpl()));
|
|
LEData.NameList.push_back(NLE);
|
|
}
|
|
|
|
StringRef RemainingTable = Obj.getStringTableData();
|
|
while (RemainingTable.size() > 0) {
|
|
auto SymbolPair = RemainingTable.split('\0');
|
|
RemainingTable = SymbolPair.second;
|
|
LEData.StringTable.push_back(SymbolPair.first);
|
|
}
|
|
}
|
|
|
|
Error macho2yaml(raw_ostream &Out, const object::MachOObjectFile &Obj) {
|
|
MachODumper Dumper(Obj);
|
|
Expected<std::unique_ptr<MachOYAML::Object>> YAML = Dumper.dump();
|
|
if (!YAML)
|
|
return YAML.takeError();
|
|
|
|
yaml::YamlObjectFile YAMLFile;
|
|
YAMLFile.MachO = std::move(YAML.get());
|
|
|
|
yaml::Output Yout(Out);
|
|
Yout << YAMLFile;
|
|
return Error::success();
|
|
}
|
|
|
|
Error macho2yaml(raw_ostream &Out, const object::MachOUniversalBinary &Obj) {
|
|
yaml::YamlObjectFile YAMLFile;
|
|
YAMLFile.FatMachO.reset(new MachOYAML::UniversalBinary());
|
|
MachOYAML::UniversalBinary &YAML = *YAMLFile.FatMachO;
|
|
YAML.Header.magic = Obj.getMagic();
|
|
YAML.Header.nfat_arch = Obj.getNumberOfObjects();
|
|
|
|
for (auto Slice : Obj.objects()) {
|
|
MachOYAML::FatArch arch;
|
|
arch.cputype = Slice.getCPUType();
|
|
arch.cpusubtype = Slice.getCPUSubType();
|
|
arch.offset = Slice.getOffset();
|
|
arch.size = Slice.getSize();
|
|
arch.align = Slice.getAlign();
|
|
arch.reserved = Slice.getReserved();
|
|
YAML.FatArchs.push_back(arch);
|
|
|
|
auto SliceObj = Slice.getAsObjectFile();
|
|
if (!SliceObj)
|
|
return SliceObj.takeError();
|
|
|
|
MachODumper Dumper(*SliceObj.get());
|
|
Expected<std::unique_ptr<MachOYAML::Object>> YAMLObj = Dumper.dump();
|
|
if (!YAMLObj)
|
|
return YAMLObj.takeError();
|
|
YAML.Slices.push_back(*YAMLObj.get());
|
|
}
|
|
|
|
yaml::Output Yout(Out);
|
|
Yout << YAML;
|
|
return Error::success();
|
|
}
|
|
|
|
std::error_code macho2yaml(raw_ostream &Out, const object::Binary &Binary) {
|
|
if (const auto *MachOObj = dyn_cast<object::MachOUniversalBinary>(&Binary)) {
|
|
if (auto Err = macho2yaml(Out, *MachOObj)) {
|
|
return errorToErrorCode(std::move(Err));
|
|
}
|
|
return obj2yaml_error::success;
|
|
}
|
|
|
|
if (const auto *MachOObj = dyn_cast<object::MachOObjectFile>(&Binary)) {
|
|
if (auto Err = macho2yaml(Out, *MachOObj)) {
|
|
return errorToErrorCode(std::move(Err));
|
|
}
|
|
return obj2yaml_error::success;
|
|
}
|
|
|
|
return obj2yaml_error::unsupported_obj_file_format;
|
|
}
|