On Sun, Jun 05, 2011 at 12:54:41PM -0700, H.J. Lu wrote:
> Hi,
>
> I'd like to start submitting a series of patches to enable x32:
>
> https://sites.google.com/site/x32abi/
>
> The GCC x32 branch is very stable. There are no unexpected failures in
> C, C++, Fortran and Objective C testsuites. S
On Tue, Jun 7, 2011 at 12:17 PM, Joseph S. Myers
wrote:
> On Tue, 7 Jun 2011, H.J. Lu wrote:
>
>> That is -mx32 takes the same default as -m64. It is the correct
>> behavior for -mx32.
>
> I think it's only right in the case where -m64 is the default, and the
> specs for the case where -m32 is the
On Tue, 7 Jun 2011, H.J. Lu wrote:
> That is -mx32 takes the same default as -m64. It is the correct
> behavior for -mx32.
I think it's only right in the case where -m64 is the default, and the
specs for the case where -m32 is the default need changing to handle -mx32
properly.
--
Joseph S. M
On Tue, 7 Jun 2011, H.J. Lu wrote:
> I thought about it when I started working on it. But I couldn't find a way
> to do it properly. What we have are
>
> #if TARGET_64BIT_DEFAULT
> #define SPEC_32 "m32"
> #define SPEC_64 "!m32"
> #else
> #define SPEC_32 "!m64"
> #define SPEC_64 "m64"
> #endif
>
On Tue, Jun 7, 2011 at 8:59 AM, Joseph S. Myers wrote:
> An additional comment on the specs: OPTION_DEFAULT_SPECS needs updating
> (-mx32 should use the --with-arch-64 etc. settings).
>
The current x32 branch works like this:
[hjl@gnu-6 gcc]$ ./xgcc -B./ -v -O /tmp/x.i -S
Reading specs from ./s
On Tue, Jun 7, 2011 at 8:47 AM, Joseph S. Myers wrote:
> On Sun, 5 Jun 2011, H.J. Lu wrote:
>
>> * config.gcc: Support --enable-x32/--enable-ia32 for x86 Linux
>> targets.
>>
>> * configure.ac: Support --enable-x32/--enable-ia32.
>> * configure: Regenerated.
>
> New configu
An additional comment on the specs: OPTION_DEFAULT_SPECS needs updating
(-mx32 should use the --with-arch-64 etc. settings).
--
Joseph S. Myers
jos...@codesourcery.com
On Sun, 5 Jun 2011, H.J. Lu wrote:
> * config.gcc: Support --enable-x32/--enable-ia32 for x86 Linux
> targets.
>
> * configure.ac: Support --enable-x32/--enable-ia32.
> * configure: Regenerated.
New configure options need documenting in install.texi.
> #undef ASM_SPEC
>
On Sun, Jun 5, 2011 at 9:54 PM, H.J. Lu wrote:
> I'd like to start submitting a series of patches to enable x32:
>
> https://sites.google.com/site/x32abi/
>
> The GCC x32 branch is very stable. There are no unexpected failures in
> C, C++, Fortran and Objective C testsuites. SPEC CPU 2K/2006 com
