A potential bug in llvm-objdump saying "LLVM ERROR: Symb must point to a valid symbol."

Project Infrastructure LLVM Dev List Archives
1

Hi, all, recently I met a problem “LLVM ERROR: Symb must point to a valid symbol.” This error occurs when a elf file produced by linker contains only one fake symbol.

I checked with debugger and found this error locates at ELFObjectFile::validateSymbol() in include/llvm/Object/ELF.h and origins from DisassembleObject() in tools/llvm-objdump/llvm-objdump.cpp at line 230. Prameter si is assigned with Obj->begin_symbols() by value
{a = 1 /* symbol index /, b = 1 / section index */}.

To conquer my problem, I changed it to {a = 0 /* symbol index /, b = 1 / section index */}, and it works now.

Any suggestion?

Best regards.

2

Could you open a bug in llvm.org/bugs and attached such elf file?