Kai Ruottu wrote: > Németh Márton wrote: >> Hi, >> >> I would like to buld a gcc cross compiler for Freescale MPC5554 [1][2] and for >> Freescale MPC5534 [3][4]. These are PowerPC based processors with e200z6 and >> e200z3 core respectively. >> >> The goal would be to compile Linux kernel for these processors using the cross >> compiler. >> >> I don't really know how to find out the proper --target= setting for binutils >> and gcc build. I found "powerpc" and "ppc" on different home pages. I also >> found on some pages to add "-elf" also. I also found a list on page >> http://gcc.gnu.org/install/specific.html but I'm not sure what to use. >> >> I also tried ../gcc-4.4.2/configure --target=help without success. >> >> Is there any description where I can find out the right --target= setting? >> > Only the 'e500' type and AltiVec type cores seem to require a special > target type, 'powerpc-*spe*' and > 'powerpc-*altivec*'. But the base template for your target name would > be 'powerpc-*linux*' because > you are going to compile a Linux kernel with it. These two special e500 > and AltiVec variations would > require you to use either the 'powerpc-*linux-gnuspe' or > 'powerpc-*linux-gnualtivec' target name, the > rest would be handled with the usual 'powerpc-*linux-gnu' target name. Thanks for the answer. My question which remains is that how could you find out this? Is there a documentation somewhere which I haven't found or have you used the source code to find out the possible target names? > Some PPC specialist could tell if the 'e200z*' cores are those 'e500' > type cores and therefore needing > a target name like 'powerpc-linux-gnuspe' - no "custom" name for the > vendor like "marton", in your > case a target name like 'powerpc-marton-linux-gnuspe' could be possible.... > > I would guess the usual 'powerpc-linux-gnu' or > 'powerpc-marton-linux-gnu' (you want to emphasize that > this is YOUR self-made GCC for YOUR self-made Linux) would suit to your > purpose. The produced > GCC would be capable to produce code for any CPU-variation the usual > type without 'spe' or 'altivec' > supports, using the '-mcpu=something' etc. options. > > The 'gcc/config/rs6000/rs6000.h' lists the possible '-mcpu=' variations > but among them there is nothing > like 'e200', only 'e300' and 'e500' :( At least with gcc-4.4.x .... > > > >
