@@ -56,9 +56,17 @@ IMAGE = $(IMAGE_$(XARCH))
IMAGE_NAME = $(notdir $(IMAGE))
# CROSS_COMPILE: cross toolchain prefix by architecture
+CROSS_COMPILE_i386 ?= x86_64-linux-gnu-
+CROSS_COMPILE_x86_64 ?= x86_64-linux-gnu-
+CROSS_COMPILE_x86 ?= x86_64-linux-gnu-
+CROSS_COMPILE_arm64 ?= aarch64-linux-gnu-
+CROSS_COMPILE_arm ?= arm-linux-gnueabi-
+CROSS_COMPILE_mips ?= mipsel-linux-gnu-
CROSS_COMPILE_ppc ?= powerpc-linux-gnu-
CROSS_COMPILE_ppc64 ?= powerpc64le-linux-gnu-
CROSS_COMPILE_ppc64le ?= powerpc64le-linux-gnu-
+CROSS_COMPILE_riscv ?= riscv64-linux-gnu-
+CROSS_COMPILE_s390 ?= s390x-linux-gnu-
CROSS_COMPILE ?= $(CROSS_COMPILE_$(XARCH))
# make sure CC is prefixed with CROSS_COMPILE
This simplifies the 'make' commands for most of nolibc supported architectures, only requires the XARCH option now. Almost all distributions provide qemu and toolchains for i386, x86_64, arm64, arm, mips, riscv and s390, let's customize the local toolchains for them. The fresh new loongarch is an exception, which is not covered here. If want to use another toolchain which is not customized here, we can also pass CROSS_COMPILE, CROSS_COMPILE_$(XARCH) and even CC from command line. After carefully install and configure $(CROSS_COMPILE_$(XARCH)) and qemu-$(XARCH), it is able to run tests for the architectures or their variants like this: $ ARCHS="i386 x86_64 arm64 arm mips ppc ppc64 ppc64le riscv s390" $ for arch in ${ARCHS[@]}; do printf "%9s: " $arch; make run-user XARCH=$arch | grep status; done i386: 165 test(s): 157 passed, 8 skipped, 0 failed => status: warning x86_64: 165 test(s): 157 passed, 8 skipped, 0 failed => status: warning arm64: 165 test(s): 157 passed, 8 skipped, 0 failed => status: warning arm: 165 test(s): 156 passed, 9 skipped, 0 failed => status: warning mips: 165 test(s): 156 passed, 9 skipped, 0 failed => status: warning ppc: 165 test(s): 157 passed, 8 skipped, 0 failed => status: warning ppc64: 165 test(s): 157 passed, 8 skipped, 0 failed => status: warning ppc64le: 165 test(s): 157 passed, 8 skipped, 0 failed => status: warning riscv: 165 test(s): 156 passed, 9 skipped, 0 failed => status: warning s390: 165 test(s): 156 passed, 9 skipped, 0 failed => status: warning [1]: https://mirrors.edge.kernel.org/pub/tools/crosstool/ Signed-off-by: Zhangjin Wu <falcon@tinylab.org> --- tools/testing/selftests/nolibc/Makefile | 8 ++++++++ 1 file changed, 8 insertions(+)