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authorDaniel Dunbar <daniel@zuster.org>2013-01-18 01:26:07 +0000
committerDaniel Dunbar <daniel@zuster.org>2013-01-18 01:26:07 +0000
commita94c33942373cb504b6e64c95415165907a89d34 (patch)
tree6a3f25d71295add8b88e544d237edcd83c84e0de /tools/macho-dump
parentcddd236e8a5acb80e9a0e79dc63f6cfaa8205b86 (diff)
[MC/Mach-O] Add support for linker options in Mach-O files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172779 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/macho-dump')
-rw-r--r--tools/macho-dump/macho-dump.cpp30
1 files changed, 29 insertions, 1 deletions
diff --git a/tools/macho-dump/macho-dump.cpp b/tools/macho-dump/macho-dump.cpp
index 20deda9a0cb..3bd3ecc8fde 100644
--- a/tools/macho-dump/macho-dump.cpp
+++ b/tools/macho-dump/macho-dump.cpp
@@ -337,7 +337,7 @@ static int DumpDataInCodeDataCommand(MachOObject &Obj,
InMemoryStruct<macho::LinkeditDataLoadCommand> LLC;
Obj.ReadLinkeditDataLoadCommand(LCI, LLC);
if (!LLC)
- return Error("unable to read segment load command");
+ return Error("unable to read data-in-code load command");
outs() << " ('dataoff', " << LLC->DataOffset << ")\n"
<< " ('datasize', " << LLC->DataSize << ")\n"
@@ -361,6 +361,31 @@ static int DumpDataInCodeDataCommand(MachOObject &Obj,
return 0;
}
+static int DumpLinkerOptionsCommand(MachOObject &Obj,
+ const MachOObject::LoadCommandInfo &LCI) {
+ InMemoryStruct<macho::LinkerOptionsLoadCommand> LOLC;
+ Obj.ReadLinkerOptionsLoadCommand(LCI, LOLC);
+ if (!LOLC)
+ return Error("unable to read linker options load command");
+
+ outs() << " ('count', " << LOLC->Count << ")\n"
+ << " ('_strings', [\n";
+
+ uint64_t DataSize = LOLC->Size - sizeof(macho::LinkerOptionsLoadCommand);
+ StringRef Data = Obj.getData(
+ LCI.Offset + sizeof(macho::LinkerOptionsLoadCommand), DataSize);
+ for (unsigned i = 0; i != LOLC->Count; ++i) {
+ std::pair<StringRef,StringRef> Split = Data.split('\0');
+ outs() << "\t\"";
+ outs().write_escaped(Split.first);
+ outs() << "\",\n";
+ Data = Split.second;
+ }
+ outs() <<" ])\n";
+
+ return 0;
+}
+
static int DumpLoadCommand(MachOObject &Obj, unsigned Index) {
const MachOObject::LoadCommandInfo &LCI = Obj.getLoadCommandInfo(Index);
@@ -390,6 +415,9 @@ static int DumpLoadCommand(MachOObject &Obj, unsigned Index) {
case macho::LCT_DataInCode:
Res = DumpDataInCodeDataCommand(Obj, LCI);
break;
+ case macho::LCT_LinkerOptions:
+ Res = DumpLinkerOptionsCommand(Obj, LCI);
+ break;
default:
Warning("unknown load command: " + Twine(LCI.Command.Type));
break;