llvm dev - Jan 2014 - [LLVMdev] A potential bug in llvm-objdump saying "LLVM ERROR: Symb must point to a valid symbol."

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.

-- 
杨勇勇 (Yang Yong-Yong)
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Could you open a bug in llvm.org/bugs and attached such elf file?

On 23 January 2014 01:29, 杨勇勇 <triple.yang at gmail.com>
wrote:
> 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.
>
> --
> 杨勇勇 (Yang Yong-Yong)
>
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