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Add the option, -data-in-code, to llvm-objdump used with -macho to print the Mach-O data in code table.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226921 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Kevin Enderby
2015-01-23 18:52:17 +00:00
parent 26ba4c13a7
commit 66e2ddc870
5 changed files with 61 additions and 2 deletions
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51
tools/llvm-objdump/MachODump.cpp
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@@ -80,6 +80,11 @@ cl::opt<bool>
cl::desc("Print indirect symbol table for Mach-O "
"objects (requires -macho)"));
cl::opt<bool>
llvm::DataInCode("data-in-code",
cl::desc("Print the data in code table for Mach-O objects "
"(requires -macho)"));
static cl::list<std::string>
ArchFlags("arch", cl::desc("architecture(s) from a Mach-O file to dump"),
cl::ZeroOrMore);
@@ -389,6 +394,48 @@ static void PrintIndirectSymbols(MachOObjectFile *O, bool verbose) {
}
}
static void PrintDataInCodeTable(MachOObjectFile *O, bool verbose) {
MachO::linkedit_data_command DIC = O->getDataInCodeLoadCommand();
uint32_t nentries = DIC.datasize / sizeof(struct MachO::data_in_code_entry);
outs() << "Data in code table (" << nentries << " entries)\n";
outs() << "offset length kind\n";
for (dice_iterator DI = O->begin_dices(), DE = O->end_dices(); DI != DE;
++DI) {
uint32_t Offset;
DI->getOffset(Offset);
outs() << format("0x%08" PRIx32, Offset) << " ";
uint16_t Length;
DI->getLength(Length);
outs() << format("%6u", Length) << " ";
uint16_t Kind;
DI->getKind(Kind);
if (verbose) {
switch (Kind) {
case MachO::DICE_KIND_DATA:
outs() << "DATA";
break;
case MachO::DICE_KIND_JUMP_TABLE8:
outs() << "JUMP_TABLE8";
break;
case MachO::DICE_KIND_JUMP_TABLE16:
outs() << "JUMP_TABLE16";
break;
case MachO::DICE_KIND_JUMP_TABLE32:
outs() << "JUMP_TABLE32";
break;
case MachO::DICE_KIND_ABS_JUMP_TABLE32:
outs() << "ABS_JUMP_TABLE32";
break;
default:
outs() << format("0x%04" PRIx32, Kind);
break;
}
} else
outs() << format("0x%04" PRIx32, Kind);
outs() << "\n";
}
}
// checkMachOAndArchFlags() checks to see if the ObjectFile is a Mach-O file
// and if it is and there is a list of architecture flags is specified then
// check to make sure this Mach-O file is one of those architectures or all
@@ -436,7 +483,7 @@ static void ProcessMachO(StringRef Filename, MachOObjectFile *MachOOF,
// info. And don't print it otherwise like in the case of printing the
// UniversalHeaders or ArchiveHeaders.
if (Disassemble || PrivateHeaders || ExportsTrie || Rebase || Bind ||
LazyBind || WeakBind || IndirectSymbols) {
LazyBind || WeakBind || IndirectSymbols || DataInCode) {
outs() << Filename;
if (!ArchiveMemberName.empty())
outs() << '(' << ArchiveMemberName << ')';
@@ -449,6 +496,8 @@ static void ProcessMachO(StringRef Filename, MachOObjectFile *MachOOF,
DisassembleMachO(Filename, MachOOF);
if (IndirectSymbols)
PrintIndirectSymbols(MachOOF, true);
if (DataInCode)
PrintDataInCodeTable(MachOOF, true);
if (Relocations)
PrintRelocations(MachOOF);
if (SectionHeaders)