Re: [Merge] lp:~epics-core/epics-base/epicsR3.15-atomics into lp:epics-base

[mdavidsaver <mdavidsaver@bnl.gov>]

On 08/10/2011 11:43 AM, mdavidsaver wrote:
> ...FYI. Debian linux still builds a (by default) i486 toolchain.

I have to correct myself here.  It is called i486-linux-gnu, but it is
built using --with-arch-32=i586 so it seems to be a i586 target.  There
is probably more to it then that...

> $ gcc
> -v                                                                        
>  
> Using built-in specs.
> Target: i486-linux-gnu
> Configured with: ../src/configure -v --with-pkgversion='Debian
> 4.4.5-8' --with-bugurl=file:///usr/share/doc/gcc-4.4/README.Bugs
> --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr
> --program-suffix=-4.4 --enable-shared --enable-multiarch
> --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib
> --without-included-gettext --enable-threads=posix
> --with-gxx-include-dir=/usr/include/c++/4.4 --libdir=/usr/lib
> --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug
> --enable-objc-gc --enable-targets=all --with-arch-32=i586
> --with-tune=generic --enable-checking=release --build=i486-linux-gnu
> --host=i486-linux-gnu --target=i486-linux-gnu
> Thread model: posix
> gcc version 4.4.5 (Debian 4.4.5-8)

And the CaS operations are available.

> $ cpp -dM test.c | egrep
> '86|SYNC'                                                
> #define __i586 1
> #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1
> #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1
> #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1
> #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1
> #define __DBL_MAX__ 1.7976931348623157e+308
> #define __i386 1
> #define __i586__ 1
> #define __i386__ 1
> #define i386 1



FYI, also for RTEMS powerpc mvme3100

> $ powerpc-rtems4.9-cpp -dM -mcpu=powerpc -msoft-float -D__ppc_generic 
> test.c | egrep 'PPC|SYNC'
> #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1
> #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1
> #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1
> #define _ARCH_PPC 1
> #define __PPC__ 1
> #define __PPC 1
> #define PPC 1


And for RTEMS x86 (>=i486).  I don't know about arm though.


-- 
https://code.launchpad.net/~epics-core/epics-base/epicsR3.15-atomics/+merge/70642
Your team EPICS Core Developers is requested to review the proposed merge of lp:~epics-core/epics-base/epicsR3.15-atomics into lp:epics-base.