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[PATCH v2] gas: Enable PC-relative diff relocations on sparc64

Jose E. Marchesi jose.marchesi@oracle.com
Wed Aug 23 16:57:00 GMT 2017 
    
    >     gas/
    >     	* config/tc-sparc.c (tc_gen_reloc): Convert BFD_RELOC_8/16/32/64
    >     	into the corresponding BFD_RELOC_8/16/32/64_PCREL relocation
    >     	when requested.
    >     	* config/tc-sparc.h (DIFF_EXPR_OK): Define to enable PC-relative
    >     	diff relocations.
    >     	(TC_FORCE_RELOCATION_SUB_LOCAL): Define to ensure only supported
    >     	relocations are made PC-relative.
    >     	(CFI_DIFF_EXPR_OK): Define to 0 to force BFD_RELOC_32_PCREL to
    >     	be used directly, since otherwise BFD_RELOC_SPARC_UA32 will be
    >     	used for .eh_frame which cannot in general be converted to a
    >     	BFD_RELOC_32_PCREL due to alignment requirements.
    >
    > Applied in master.
    > Thanks!
    
    Heya,
    
    I think one of these sparc commits broke the build on sparc:
    
      <https://gdb-build.sergiodj.net/builders/Ubuntu-AArch32-native-gdbserver-m32/builds/1185/steps/compile%20gdb/logs/stdio>


Seems to be the GDB patch from Weimin, not the binutils patch from
James.  Looking at it.
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