On Sun, Aug 06, 2023 at 02:46:03AM +0800, Zhangjin Wu wrote: > Some cross compilers may not just be prefixed with ARCH, customize them > by architecture may simplify the test a lot, especially, when iterate > with ARCH. > > After customizing this for every architecture, the minimal test argument > will be architecture itself, no CROSS_COMPILE required to be passed. > > If the prefix of installed cross compiler is not the same as the one > customized, we can also pass CROSS_COMPILE as before or even pass > CROSS_COMPILE_<ARCH>. > > Signed-off-by: Zhangjin Wu <falcon@xxxxxxxxxxx> > --- > tools/testing/selftests/nolibc/Makefile | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile > index 452d8e424d28..45d231b9c5c2 100644 > --- a/tools/testing/selftests/nolibc/Makefile > +++ b/tools/testing/selftests/nolibc/Makefile > @@ -55,6 +55,12 @@ IMAGE_loongarch = arch/loongarch/boot/vmlinuz.efi > IMAGE = $(IMAGE_$(XARCH)) > IMAGE_NAME = $(notdir $(IMAGE)) > > +# CROSS_COMPILE: cross toolchain prefix by architecture > +CROSS_COMPILE ?= $(CROSS_COMPILE_$(XARCH)) > + > +# make sure CC is prefixed with CROSS_COMPILE > +$(call allow-override,CC,$(CROSS_COMPILE)gcc) > + Note that I feared that it would break my "CC=gcc-5.5.0" and so on but fortunately it did not. However I don't understand what it tries to do nor the problem it tries to solve (even the commit message is quite unclear to me). I'm leaving it aside anyway but I wanted to let you know. Willy
