[patch windows]: Fix regression about -gcoff1

[Kai Tietz]

2011/1/9 Kai Tietz <ktietz70@googlemail.com>:
> Hello,
>
> While running g++.dg/debug testsuite I noticed regression about
> -gcoff1 and wrong section use. The coff1 debugging information changes
> section to .text and doesn't restore it back to function decl's
> section. This is cause that function gets placed within wrong section.
>
> 2011-01-09  Kai Tietz
>
>        * config/i386/winnt.c (i386_pe_start_function): Make sure
>        to switch back to function's section.
>
> Tested for x86_64-w64-mingw32 and i686-pc-mingw32. I'll apply it in a
> couple of hours if there are no objections.
>
> Regards,
> Kai
>
> Index: winnt.c
> ===================================================================
> --- winnt.c     (revision 168611)
> +++ winnt.c     (working copy)
> @@ -1101,6 +1101,9 @@
>   i386_pe_maybe_record_exported_symbol (decl, name, 0);
>   if (write_symbols != SDB_DEBUG)
>     i386_pe_declare_function_type (f, name, TREE_PUBLIC (decl));
> +  /* In case section was altered by debugging output.  */
> +  if (decl != NULL_TREE)
> +    switch_to_section (function_section (decl));
>   ASM_OUTPUT_FUNCTION_LABEL (f, name, decl);
>  }
>

Applied at revision 168615.

Kai