On Sat, Jan 16, 2016 at 12:49:12AM +0100, Martin Jambor wrote:
> bootstrapping on i686-linux revealed the need for the following simple
> patch. I've run into two types of compilation errors on
> powerpc-ibm-aix (no htolenn functions and ASM_GENERATE_INTERNAL_LABEL
> somehow expanding to undeclared rs6000_xcoff_strip_dollar). I plan to
> workaround them quickly by making most of the contents of hsa-*.c
> files compiled only conditionally (and leave potential hsa support on
> non-linux platforms for later), but I will not have time to do the
> change and test it properly until Monday.
>
> But that will hopefully really be it,
IMHO you'd be best to write your own helpers for conversion to little
endian (and back).
gcc configure already has AC_C_BIGENDIAN (dunno how it handles pdp endian
host though, so not sure if it is safe to rely on that), for recent GCC
you can use __BYTE_ORDER__ macro to check endianity and __builtin_bswap*.
So perhaps just
#if GCC_VERSION >= 4006
// use __BYTE_ORDER__ and __builtin_bswap or nothing
#else
// provide a safe slower default, with shifts and masking
#endif
As for rs6000_xcoff_strip_dollar, look at other sources that use it what
headers they do include, bet you want to #include "tm_p.h" to make it work.
Jakub
