Update llvm-objdump’s Mach-O symbolizer code for Objective-C references.
This prints disassembly comments for Objective-C references to CFStrings,
Selectors, Classes and method calls.
llvm-svn: 220500
diff --git a/llvm/lib/Object/MachOObjectFile.cpp b/llvm/lib/Object/MachOObjectFile.cpp
index 6e83d81..0bd61ce 100644
--- a/llvm/lib/Object/MachOObjectFile.cpp
+++ b/llvm/lib/Object/MachOObjectFile.cpp
@@ -2345,11 +2345,47 @@
}
MachO::symtab_command MachOObjectFile::getSymtabLoadCommand() const {
- return getStruct<MachO::symtab_command>(this, SymtabLoadCmd);
+ if (SymtabLoadCmd)
+ return getStruct<MachO::symtab_command>(this, SymtabLoadCmd);
+
+ // If there is no SymtabLoadCmd return a load command with zero'ed fields.
+ MachO::symtab_command Cmd;
+ Cmd.cmd = MachO::LC_SYMTAB;
+ Cmd.cmdsize = sizeof(MachO::symtab_command);
+ Cmd.symoff = 0;
+ Cmd.nsyms = 0;
+ Cmd.stroff = 0;
+ Cmd.strsize = 0;
+ return Cmd;
}
MachO::dysymtab_command MachOObjectFile::getDysymtabLoadCommand() const {
- return getStruct<MachO::dysymtab_command>(this, DysymtabLoadCmd);
+ if (DysymtabLoadCmd)
+ return getStruct<MachO::dysymtab_command>(this, DysymtabLoadCmd);
+
+ // If there is no DysymtabLoadCmd return a load command with zero'ed fields.
+ MachO::dysymtab_command Cmd;
+ Cmd.cmd = MachO::LC_DYSYMTAB;
+ Cmd.cmdsize = sizeof(MachO::dysymtab_command);
+ Cmd.ilocalsym = 0;
+ Cmd.nlocalsym = 0;
+ Cmd.iextdefsym = 0;
+ Cmd.nextdefsym = 0;
+ Cmd.iundefsym = 0;
+ Cmd.nundefsym = 0;
+ Cmd.tocoff = 0;
+ Cmd.ntoc = 0;
+ Cmd.modtaboff = 0;
+ Cmd.nmodtab = 0;
+ Cmd.extrefsymoff = 0;
+ Cmd.nextrefsyms = 0;
+ Cmd.indirectsymoff = 0;
+ Cmd.nindirectsyms = 0;
+ Cmd.extreloff = 0;
+ Cmd.nextrel = 0;
+ Cmd.locreloff = 0;
+ Cmd.nlocrel = 0;
+ return Cmd;
}
MachO::linkedit_data_command