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Re: RFA/RFC: Enable both gold and ld in a single toolchain


On Tue, Mar 16, 2010 at 10:25 AM, Nick Clifton <nickc@redhat.com> wrote:
> Hi H.J.
>
>> -fuse-ld is misleading. ld may be gold. ?How about "-fuse-ld=[gold|bfd]"
>> which
>> is consistent with linker names and configure options.
>
> A good point. ?I have attached a revised patch with the option named as you
> suggest. ?I also omitted to include your name and Roland's in the ChangeLog
> entries, so I have updated those as well.
>
> Any other issues with the patch ?
>
> Cheers
> ?Nick
>
> ./ChangeLog
> 2010-01-05 ?Roland McGrath ?<roland@redhat.com>
> ? ? ? ? ? ?H.J. Lu ?<hongjiu.lu@intel.com>
>
> ? ? ? ?* configure.ac (--enable-gold): Support both, both/gold and
> ? ? ? ?both/bfd to add gold to configdirs without removing ld.
> ? ? ? ?* configure: Regenerated.
>
> gold/ChangeLog
> 2010-01-05 ?H.J. Lu ?<hongjiu.lu@intel.com>
> ? ? ? ? ? ?Nick Clifton ?<nickc@redhat.com>
>
> ? ? ? ?* configure.ac (install_as_default): Define and set to false
> ? ? ? ?unless --enable-gold or --enable-gold=both/gold has been
> ? ? ? ?specified.
> ? ? ? ?* configure: Regenerate.
> ? ? ? ?* Makefile.am (install-exec-local): Install the executable as
> ? ? ? ?"gold". ?If install_as_default is true then also install it as
> ? ? ? ?"ld".
> ? ? ? ?* Makefile.in: Regenerated.
>
> ld/ChangeLog
> 2010-01-05 ?H.J. Lu ?<hongjiu.lu@intel.com>
> ? ? ? ? ? ?Nick Clifton ?<nickc@redhat.com>
>
> ? ? ? ?* configure.in (install_as_default): Define and set to true
> ? ? ? ?unless --enable-gold=both/gold has been specified.
> ? ? ? ?* configure: Regenerate.
> ? ? ? ?* Makefile.am (transform): Use ld.bfd as the default name of
> ? ? ? ?the linker.
> ? ? ? ?(install-exec-local): Also install the executable as a binary
> ? ? ? ?named 'ld' if install_as_default is true.
> ? ? ? ?* Makefile.in: Regenerate.
>
> gcc/ChangeLog
> 2010-03-04 ?Nick Clifton ?<nickc@redhat.com>
>
> ? ? ? ?* configure.ac (gcc_cv_gold_srcdir): New cached variable -
> ? ? ? ?contains the location of the gold sources.
> ? ? ? ?(ORIGINAL_GOLD_FOR_TARGET): New substituted variable - contains
> ? ? ? ?the name of the locally built gold executable.
> ? ? ? ?* configure: Regenerate.
> ? ? ? ?* collect2.c (main): Detect the -use-gold and -use-ld switches
> ? ? ? ?and select the appropriate linker, if found.
> ? ? ? ?* exec-tool.in: Detect the -use-gold and -use-ld switches and
> ? ? ? ?select the appropriate linker, if found.
> ? ? ? ?Add support for -v switch.
> ? ? ? ?Report problems locating linker executable.
> ? ? ? ?* gcc.c (LINK_COMMAND_SPEC): Translate -fuse-ld=gold into
> ? ? ? ?-use-gold and -fuse-ld=bfd into -use-ld.
> ? ? ? ?* common.opt: Add fuse-ld=gold and fuse-ld=bfd.
> ? ? ? ?* opts.c (comman_handle_option): Ignore -fuse-ld=gold and
> ? ? ? ?-fuse-ld=bfd.
> ? ? ? ?* doc/invoke.texi: Document the new options.
>

Is that possible to pass -fuse-ld=XXX directly collect2 so that you
don't need to change exec-tool.in?


-- 
H.J.


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