On Mon, Sep 10, 2018 at 09:56:33AM +0000, Christophe Leroy wrote: > > # export REAL_CC=ppc-linux-gcc > # make CHECK="cgcc -target=ppc -D_CALL_ELF=2 -D__GCC__=5 > -D__GCC_MINOR__=4" C=2 arch/powerpc/kernel/process.o > scripts/kconfig/conf --syncconfig Kconfig > # > # configuration written to .config > # > UPD include/config/kernel.release > UPD include/generated/utsrelease.h > CC kernel/bounds.s > CC arch/powerpc/kernel/asm-offsets.s > CALL scripts/checksyscalls.sh > CHECK scripts/mod/empty.c > Can't exec "/bin/sh": Argument list too long at /usr/local/bin/cgcc line 86. > make[2]: *** [scripts/mod/empty.o] Error 1 > make[1]: *** [scripts/mod] Error 2 > make: *** [scripts] Error 2 OK. Clearly nobody has ever used it so :( There is an infinite loop because cgcc use the env var CHECK to call sparse while kbuild use CHECK to call cgcc here. The following seems to work here. $ export REAL_CC=ppc-linux-gcc $ make CHECK="CHECK=sparse cgcc -target=ppc ... It's a bit kludgy, I admit. -- Luc