[Patch, microblaze, gas] Don't emit reloc for weak symbols

[Michael Eager]

On 10/24/2012 06:23 AM, David Holsgrove wrote:
> Resolves PR gas 14640 - check for weak symbols before emitting relocation
>
> http://sourceware.org/bugzilla/show_bug.cgi?id=14640
>
> Based on original patch by Vasanth Asokan in Xilinx, resolves situation
> where gas will generate a jump based on a weak definition, which then
> potentially falls outside the jump range if overridden by a strong
> definition.
>
> Resultant error resembled;
>
> relocation truncated to fit: R_MICROBLAZE_32_PCREL_LO against symbol
> `test_start' defined in .testsection section in reloc_strongsym.o
>
> Add microblaze to gas/testsuite, and include a reloc.exp test for
> this bug.
>
>
> binutils/gas/Changelog
>
>   2012-10-24  David Holsgrove  <david.holsgrove@xilinx.com>
>
>            * config/tc-microblaze.c: Check for weak symbols before
>              emitting relocation.
>
> binutils/gas/testsuite/Changelog
>
>   2012-10-24  David Holsgrove  <david.holsgrove@xilinx.com>
>
>            * testsuite/gas/microblaze: New.
>            * testsuite/gas/microblaze/reloc_sym.exp: Add test case.
>            * testsuite/gas/microblaze/reloc_strongsym.s: Likewise.
>            * testsuite/gas/microblaze/reloc_weaksym.s: Likewise.
>            * testsuite/gas/microblaze/reloc_sym.d: Likewise.

OK.  I'll check this in.

-- 
Michael Eager	 eager@eagercon.com
1960 Park Blvd., Palo Alto, CA 94306  650-325-8077