[Bug ld/19538] ld >= 2.26 breaks syslinux (bios) build

[hpa at zytor dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=19538

--- Comment #5 from hpa at zytor dot com <hpa at zytor dot com> ---
On January 30, 2016 9:08:32 AM PST, "hjl.tools at gmail dot com"
<address@hidden> wrote:
>https://sourceware.org/bugzilla/show_bug.cgi?id=19538
>
>--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
>(In reply to H.J. Lu from comment #2)
>> pfx_compressed, which is __pm_code_lma, is wrong:
>> 
>>                 section .prefix         nowrite progbits align=16
>> pfx_start       dd _start               ; Start of raw chunk
>> pfx_compressed  dd __pm_code_lma        ; Start of compressed chunk
>> pfx_cdatalen    dd lzo_data_size        ; Pointer to compressed size
>field
>> %if IS_ISOLINUX
>> pfx_checksum    dd bi_length            ; File length and checksum
>fields
>> %else
>> pfx_checksum    dd 0                    ; No checksum
>> %endif
>> pfx_maxlma      dd MaxLMA               ; Maximum size
>> 
>> 00009770 B __pm_code_lma
>
>bios/core/ldlinux.elf is built with -pie.  The value of __pm_code_lma
>won't be known until run-time:
>
>Relocation section '.rel.dyn' at offset 0x1ba34 contains 1435 entries:
> Offset     Info    Type            Sym.Value  Sym. Name
>...
>00000004  00010d01 R_386_32          00009770   __pm_code_lma
>00008f62  00010d01 R_386_32          00009770   __pm_code_lma
>
>Peter, am I missing something?

ldlinux.elf shouldn't be build pie, so that would explain why.

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