[patch binutils] Handle Win64 calling convention in ld-plugin tests

[Stephen Kitt]

On Thu, 28 Aug 2014 14:50:51 +0930, Alan Modra <amodra@gmail.com> wrote:
> On Sun, Aug 24, 2014 at 08:59:56AM -0700, Stephen Kitt wrote:
> > Currently the ld-plugin tests expect to find ___main, which fails when
> > targetting Win64. (The calling convention there specifies no additional
> > underscores.) The following patch adjusts the defsym in ld-lib.exp for
> > this case; this allows the testsuite to pass on x86_64-w64-mingw32.
> 
> I see there is a configure option --enable-leading-mingw64-underscores,
> so can you check that the following works?
> 
> diff --git a/ld/testsuite/lib/ld-lib.exp b/ld/testsuite/lib/ld-lib.exp
> index e4084e1..292a873 100644
> --- a/ld/testsuite/lib/ld-lib.exp
> +++ b/ld/testsuite/lib/ld-lib.exp
> @@ -410,9 +410,9 @@ proc ld_simple_link_defsyms {} {
>          append flags " --defsym __gccmain=0"
>      }
>  
> -    # Windows targets need __main, prefixed with underscore.
> +    # Windows targets need __main, some prefixed with underscore.
>      if {[istarget *-*-cygwin* ] || [istarget *-*-mingw*]} {
> -        append flags " --defsym ___main=0"
> +        append flags " --defsym __main=0 --defsym ___main=0"
>      }
>  
>      # PowerPC EABI code calls __eabi.

It does indeed, and as long as that option is available then the test should
support both variants, which my patch didn't.

Thanks!

Stephen
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