objdumps bug-report

[Arthur Mongodin]

Hello, I found a bug in objdump and in gdb(It seems that you work together) with the i386 disassembler. The bug is that instructions print with the rm mod, mod = 0, rm = 5(0b101), in 32-Bit Addressing forms is false.(the example with the photo)

I tried to patch it and i found where the bug is.

In file opcodes/i386-dis.c, in function OP_E_memory (line 13892), you set at 0 the variable havebase (line 14111), in this case of a such rm byte and with the AT&T syntax, no one of yours comparisons after deals with this case, that explain the instruction's error.

So I propose after the line 14258 to add this code(for example) : 

else

   oappend("(0x0)")

I don't know well the At&T syntax, so it just a suggestion and I hope that you are understanding with the idea.

My english skill is not very developped, so I hope that you had me understood.

Thank you

Arthur MONGODIN

objdump_bug.png
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