On Fri, 2015-01-16 at 09:52 -0600, Bill Schmidt wrote: > Hi David, > > Something's not quite right here -- we've been having bootstrap failures > with BE and LE PPC64 Linux. Maybe a missing include?
Correction, just on LE. The issue on BE was a different failure. > > g++ -c -g -DIN_GCC -fno-exceptions -fno-rtti > -fasynchronous-unwind-tables - > W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format > -Wmissing-format- > attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros > -Wn > o-overlength-strings -fno-common -DHAVE_CONFIG_H -I. -I. > -I/home/gccbuild/gcc_t > runk_anonsvn/gcc/gcc -I/home/gccbuild/gcc_trunk_anonsvn/gcc/gcc/. > -I/home/gccbui > ld/gcc_trunk_anonsvn/gcc/gcc/../include > -I/home/gccbuild/gcc_trunk_anonsvn/gcc/g > cc/../libcpp/include > -I/home/gccbuild/gcc_trunk_anonsvn/gcc/gcc/../libdecnumber > -I/home/gccbuild/gcc_trunk_anonsvn/gcc/gcc/../libdecnumber/dpd > -I../libdecnumbe > r -I/home/gccbuild/gcc_trunk_anonsvn/gcc/gcc/../libbacktrace -o options.o > -MT > options.o -MMD -MP -MF ./.deps/options.TPo options.c > In file included from tm.h:30:0, > from options.c:7: > /home/gccbuild/gcc_trunk_anonsvn/gcc/gcc/config/rs6000/default64.h:23:25: > error: > ‘ISA_2_7_MASKS_SERVER’ was not declared in this scope > #define TARGET_DEFAULT (ISA_2_7_MASKS_SERVER | MASK_POWERPC64 | MASK_64BIT | > MA > SK_LITTLE_ENDIAN) > ^ > options.c:828:3: note: in expansion of macro ‘TARGET_DEFAULT’ > TARGET_DEFAULT, /* rs6000_isa_flags */ > ^ > make[3]: *** [options.o] Error 1 > make[3]: *** Waiting for unfinished jobs.... > > Bill > > > > On Wed, 2015-01-14 at 15:32 -0500, David Edelsohn wrote: > > The PPC64LE ABI specifies POWER8 ISA as the minimum hardware > > requierment. Currently, Linux distributions are building the > > toolchain using --with-cpu=power7 or power8, as they wish. GCC > > defaults to essentially the POWER4 ISA. > > > > The appended patch changes the default for PPC64LE to POWER8 (ISA > > 2.7). 32-bit PPC SVR4 is not really defined, but it is left unchanged > > with no minimum ISA. > > > > The default ISA can be overridden using --with-cpu= and we presume > > that Linux distributions and users will continue to configure as they > > require for their deployment. > > > > * config/rs6000/default64.h (TARGET_DEFAULT) [LITTLE_ENDIAN]: Use ISA > > 2.7 (POWER8). > > > > Thanks, David > > > > Index: default64.h > > =================================================================== > > --- default64.h (revision 219607) > > +++ default64.h (working copy) > > @@ -20,7 +20,7 @@ > > > > #if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN) > > #undef TARGET_DEFAULT > > -#define TARGET_DEFAULT (MASK_PPC_GFXOPT | MASK_POWERPC64 | MASK_64BIT > > | MASK_LITTLE_ENDIAN) > > +#define TARGET_DEFAULT (ISA_2_7_MASKS_SERVER | MASK_POWERPC64 | > > MASK_64BIT | MASK_LITTLE_ENDIAN) > > #else > > #undef TARGET_DEFAULT > > #define TARGET_DEFAULT (MASK_PPC_GFXOPT | MASK_POWERPC64 | MASK_64BIT) > > > >
