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-rw-r--r--test/MC/MachO/ARM/llvm-objdump-macho-stripped.s5
-rw-r--r--tools/llvm-objdump/MachODump.cpp31
2 files changed, 34 insertions, 2 deletions
diff --git a/test/MC/MachO/ARM/llvm-objdump-macho-stripped.s b/test/MC/MachO/ARM/llvm-objdump-macho-stripped.s
new file mode 100644
index 0000000..7fcec52
--- /dev/null
+++ b/test/MC/MachO/ARM/llvm-objdump-macho-stripped.s
@@ -0,0 +1,5 @@
+@ RUN: llvm-mc -triple=thumbv7-apple-ios -filetype=obj -o - < %s | llvm-objdump -d -macho -triple=thumbv7-apple-ios - | FileCheck %s
+ nop
+# CHECK: 0: 00 bf nop
+# We are checking that disassembly happens when there are no symbols.
+# rdar://11460289
diff --git a/tools/llvm-objdump/MachODump.cpp b/tools/llvm-objdump/MachODump.cpp
index 60c33f2..5e175a0 100644
--- a/tools/llvm-objdump/MachODump.cpp
+++ b/tools/llvm-objdump/MachODump.cpp
@@ -286,8 +286,10 @@ void llvm::DisassembleInputMachO(StringRef Filename) {
// Read and register the symbol table data.
InMemoryStruct<macho::SymtabLoadCommand> SymtabLC;
- MachOObj->ReadSymtabLoadCommand(*SymtabLCI, SymtabLC);
- MachOObj->RegisterStringTable(*SymtabLC);
+ if (SymtabLCI) {
+ MachOObj->ReadSymtabLoadCommand(*SymtabLCI, SymtabLC);
+ MachOObj->RegisterStringTable(*SymtabLC);
+ }
std::vector<SectionRef> Sections;
std::vector<SymbolRef> Symbols;
@@ -498,6 +500,31 @@ void llvm::DisassembleInputMachO(StringRef Filename) {
InstrAnalysis.get(), Start, DebugOut, FunctionMap, Functions);
}
}
+ if (!CFG && !symbolTableWorked) {
+ // Reading the symbol table didn't work, disassemble the whole section.
+ uint64_t SectAddress;
+ Sections[SectIdx].getAddress(SectAddress);
+ uint64_t SectSize;
+ Sections[SectIdx].getSize(SectSize);
+ uint64_t InstSize;
+ for (uint64_t Index = 0; Index < SectSize; Index += InstSize) {
+ MCInst Inst;
+
+ if (DisAsm->getInstruction(Inst, InstSize, memoryObject, Index,
+ DebugOut, nulls())) {
+ outs() << format("%8" PRIx64 ":\t", SectAddress + Index);
+
+ DumpBytes(StringRef(Bytes.data() + Index, InstSize));
+ IP->printInst(&Inst, outs(), "");
+
+ outs() << "\n";
+ } else {
+ errs() << "llvm-objdump: warning: invalid instruction encoding\n";
+ if (InstSize == 0)
+ InstSize = 1; // skip illegible bytes
+ }
+ }
+ }
if (CFG) {
if (!symbolTableWorked) {