macho-dump: Add support for dumping sections.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120215 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/macho-dump/macho-dump.cpp b/tools/macho-dump/macho-dump.cpp
index 487a006..68e61ba 100644
--- a/tools/macho-dump/macho-dump.cpp
+++ b/tools/macho-dump/macho-dump.cpp
@@ -25,7 +25,7 @@
InputFile(cl::Positional, cl::desc("<input file>"), cl::init("-"));
static cl::opt<bool>
-DumpSectionData("dump-section-data", cl::desc("Dump the contents of sections"),
+ShowSectionData("dump-section-data", cl::desc("Dump the contents of sections"),
cl::init(false));
///
@@ -83,6 +83,31 @@
outs() << " ('flags', " << Flags << ")\n";
}
+static void DumpSectionData(unsigned Index, StringRef Name,
+ StringRef SegmentName, uint64_t Address,
+ uint64_t Size, uint32_t Offset,
+ uint32_t Align, uint32_t RelocationTableOffset,
+ uint32_t NumRelocationTableEntries,
+ uint32_t Flags, uint32_t Reserved1,
+ uint32_t Reserved2, uint64_t Reserved3 = ~0ULL) {
+ outs() << " # Section " << Index << "\n";
+ outs() << " (('section_name', '";
+ outs().write_escaped(Name, /*UseHexEscapes=*/true) << "')\n";
+ outs() << " ('segment_name', '";
+ outs().write_escaped(SegmentName, /*UseHexEscapes=*/true) << "')\n";
+ outs() << " ('address', " << Address << ")\n";
+ outs() << " ('size', " << Size << ")\n";
+ outs() << " ('offset', " << Offset << ")\n";
+ outs() << " ('alignment', " << Align << ")\n";
+ outs() << " ('reloc_offset', " << RelocationTableOffset << ")\n";
+ outs() << " ('num_reloc', " << NumRelocationTableEntries << ")\n";
+ outs() << " ('flags', " << format("%#x", Flags) << ")\n";
+ outs() << " ('reserved1', " << Reserved1 << ")\n";
+ outs() << " ('reserved2', " << Reserved2 << ")\n";
+ if (Reserved3 != ~0ULL)
+ outs() << " ('reserved3', " << Reserved3 << ")\n";
+}
+
static int DumpSegmentCommand(MachOObject &Obj,
const MachOObject::LoadCommandInfo &LCI) {
InMemoryStruct<macho::SegmentLoadCommand> SLC;
@@ -90,13 +115,34 @@
if (!SLC)
return Error("unable to read segment load command");
- DumpSegmentCommandData(StringRef(SLC->Name, 16), SLC->VMAddress, SLC->VMSize,
- SLC->FileOffset, SLC->FileSize,
+ DumpSegmentCommandData(StringRef(SLC->Name, 16), SLC->VMAddress,
+ SLC->VMSize, SLC->FileOffset, SLC->FileSize,
SLC->MaxVMProtection, SLC->InitialVMProtection,
SLC->NumSections, SLC->Flags);
- return 0;
+ // Dump the sections.
+ int Res = 0;
+ outs() << " ('sections', [\n";
+ for (unsigned i = 0; i != SLC->NumSections; ++i) {
+ InMemoryStruct<macho::Section> Sect;
+ Obj.ReadSection(LCI, i, Sect);
+ if (!SLC) {
+ Res = Error("unable to read section '" + Twine(i) + "'");
+ break;
+ }
+
+ DumpSectionData(i, StringRef(Sect->Name, 16),
+ StringRef(Sect->SegmentName, 16), Sect->Address, Sect->Size,
+ Sect->Offset, Sect->Align, Sect->RelocationTableOffset,
+ Sect->NumRelocationTableEntries, Sect->Flags,
+ Sect->Reserved1, Sect->Reserved2);
+ outs() << " ),\n";
+ }
+ outs() << " ])\n";
+
+ return Res;
}
+
static int DumpSegment64Command(MachOObject &Obj,
const MachOObject::LoadCommandInfo &LCI) {
InMemoryStruct<macho::Segment64LoadCommand> SLC;
@@ -104,11 +150,31 @@
if (!SLC)
return Error("unable to read segment load command");
- DumpSegmentCommandData(StringRef(SLC->Name, 16), SLC->VMAddress, SLC->VMSize,
- SLC->FileOffset, SLC->FileSize,
+ DumpSegmentCommandData(StringRef(SLC->Name, 16), SLC->VMAddress,
+ SLC->VMSize, SLC->FileOffset, SLC->FileSize,
SLC->MaxVMProtection, SLC->InitialVMProtection,
SLC->NumSections, SLC->Flags);
+ // Dump the sections.
+ int Res = 0;
+ outs() << " ('sections', [\n";
+ for (unsigned i = 0; i != SLC->NumSections; ++i) {
+ InMemoryStruct<macho::Section64> Sect;
+ Obj.ReadSection64(LCI, i, Sect);
+ if (!SLC) {
+ Res = Error("unable to read section '" + Twine(i) + "'");
+ break;
+ }
+
+ DumpSectionData(i, StringRef(Sect->Name, 16),
+ StringRef(Sect->SegmentName, 16), Sect->Address, Sect->Size,
+ Sect->Offset, Sect->Align, Sect->RelocationTableOffset,
+ Sect->NumRelocationTableEntries, Sect->Flags,
+ Sect->Reserved1, Sect->Reserved2, Sect->Reserved3);
+ outs() << " ),\n";
+ }
+ outs() << " ])\n";
+
return 0;
}