[Activity] March 7 - 18
== GCC == * Started looking at performance regressions. Setting up builds with EEMBC Denbench and other benchmarks. * Looked at PR47719 in some detail this week. * Set up environment on laptop . Fixed PR46788 in 4.6 branch and trunk. * Discussions regarding armhf, how to maintain Linaro branches - upstreaming patches etc. * Looked at a case of performance improvements with VFP stores. I think it's because we end up allowing PRE_INC and POST_DEC for floating point mode values because of which there end up being more transfers to and from the integer core registers. * Off sick on Monday 14th March 2011. == Misc == * Sorted out travel arrangements for LDS. Waiting for visa now. ___ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
Substituting -msoft-float/-mfloat-abi=* in the proper order in spec file
Hey
I'm trying to extend the *link: specs to pass a different
-dynamic-linker depending on the float ABI. But I didn't manage to
build a construct which would preserve the order of the flags; if I do
something like:
%{msoft-float:-dynamic-linker V1} %{mfloat-abi=softfp:-dynamic-linker V2}
Then I get V2 for "-mfloat-abi=softfp -msoft-float" instead of V1.
In gcc/gcc.c I found some docs on spec file syntax; I see one can use
%{S*&T*} and %{S*:X}, but apparently %{S*&T*:X} isn't allowed, so I
can't manipulate the value. I tried to use
%{msoft-float*:-dynamic-linker V1} %{mfloat-abi=softfp*:-dynamic-linker V2}
but that gives the same effect (the msoft-float flags are
grouped together in the original order and put first, then the
mfloat-abi=softfp are grouped together in the original order and put
second).
I didn't manage to get %{msoft-float*:%http://lists.linaro.org/mailman/listinfo/linaro-toolchain
