[Bug dynamic-link/14979] Incorrect R_386_GLOB_DAT/R_386_JUMP_SLOT handling

[hjl.tools at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14979

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> 2012-12-21 13:39:46 UTC ---
(In reply to comment #1)
> I'd say it is way too late to do changes like that.
> And, if you even consider those, make sure you won't break e.g. prelink (not
> sure about x86_64, but on i386 you'd definitely break prelink fatally with such
> a change).

I did a quick check.  All files under /lib and /bin on 32-bit Fedora 17
have 0 addend for both R_386_GLOB_DAT and R_386_JMP_SLOT.  I looked
at prelink source, R_386_GLOB_DAT, R_X86_64_GLOB_DAT and R_X86_64_JMP_SLOT
have zero r_addend.  I am not sure about R_386_JMP_SLOT.  I will modify
prelink to check addend for both 386 and x86-64.  I will run it on both
32bit and 64bit Fedora 17 to see prelink ever generates none-zero addend
for GLOB_DAT and JMP_SLOT.

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