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Re: x86-64 large data sections updated
On Wed, Jun 15, 2005 at 03:34:58PM -0400, Ian Lance Taylor wrote:
> Richard Henderson <rth@redhat.com> writes:
>
> > > OK, so dropping here the lcommon test sounds sane?
> >
> > The entire function is not sane. The .largecomm assembler directive
> > should set the section to SHN_X86_64_LARGE_COMMON, and that should be
> > the end of it. Once COMMON symbols get mapped into .lcommon/.lbss
> > sections, they don't return.
>
> There is no interface for gas to set the ELF section of a symbol,
> except to set the symbol of the BFD symbol to some BFD section. So
> unless we introduce such an interface, the only way to do this is to
> use a magic BFD section, which then gets translated into the
> appropriate ELF section code. That is how the MIPS backend handles
> SHN_MIPS_SCOMMON--gas puts the symbol in ".scommon" and
> _bfd_mips_elf_section_from_bfd_section translates ".scommon" into
> SHN_MIPS_SCOMMON. That seems to be what Jan is emulating in his code.
Do you have a MIPS assembly example to put a symbol in
SHN_MIPS_SCOMMON?
H.J.