| # SPDX-License-Identifier: GPL-2.0 |
| # Makefile for nolibc tests |
| # we're in ".../tools/testing/selftests/nolibc" |
| ifeq ($(srctree),) |
| srctree := $(patsubst %/tools/testing/selftests/,%,$(dir $(CURDIR))) |
| endif |
| |
| include $(srctree)/tools/scripts/utilities.mak |
| # We need this for the "__cc-option" macro. |
| include $(srctree)/scripts/Makefile.compiler |
| |
| ifneq ($(O),) |
| ifneq ($(call is-absolute,$(O)),y) |
| $(error Only absolute O= parameters are supported) |
| endif |
| objtree := $(O) |
| else |
| objtree ?= $(srctree) |
| endif |
| |
| ifeq ($(ARCH),) |
| include $(srctree)/scripts/subarch.include |
| ARCH = $(SUBARCH) |
| endif |
| |
| cc-option = $(call __cc-option, $(CC),$(CLANG_CROSS_FLAGS),$(1),$(2)) |
| |
| # XARCH extends the kernel's ARCH with a few variants of the same |
| # architecture that only differ by the configuration, the toolchain |
| # and the Qemu program used. It is copied as-is into ARCH except for |
| # a few specific values which are mapped like this: |
| # |
| # XARCH | ARCH | config |
| # -------------|-----------|------------------------- |
| # ppc | powerpc | 32 bits |
| # ppc64 | powerpc | 64 bits big endian |
| # ppc64le | powerpc | 64 bits little endian |
| # |
| # It is recommended to only use XARCH, though it does not harm if |
| # ARCH is already set. For simplicity, ARCH is sufficient for all |
| # architectures where both are equal. |
| |
| # configure default variants for target kernel supported architectures |
| XARCH_powerpc = ppc |
| XARCH_mips = mips32le |
| XARCH = $(or $(XARCH_$(ARCH)),$(ARCH)) |
| |
| # map from user input variants to their kernel supported architectures |
| ARCH_ppc = powerpc |
| ARCH_ppc64 = powerpc |
| ARCH_ppc64le = powerpc |
| ARCH_mips32le = mips |
| ARCH_mips32be = mips |
| ARCH := $(or $(ARCH_$(XARCH)),$(XARCH)) |
| |
| # kernel image names by architecture |
| IMAGE_i386 = arch/x86/boot/bzImage |
| IMAGE_x86_64 = arch/x86/boot/bzImage |
| IMAGE_x86 = arch/x86/boot/bzImage |
| IMAGE_arm64 = arch/arm64/boot/Image |
| IMAGE_arm = arch/arm/boot/zImage |
| IMAGE_mips32le = vmlinuz |
| IMAGE_mips32be = vmlinuz |
| IMAGE_ppc = vmlinux |
| IMAGE_ppc64 = vmlinux |
| IMAGE_ppc64le = arch/powerpc/boot/zImage |
| IMAGE_riscv = arch/riscv/boot/Image |
| IMAGE_s390 = arch/s390/boot/bzImage |
| IMAGE_loongarch = arch/loongarch/boot/vmlinuz.efi |
| IMAGE = $(objtree)/$(IMAGE_$(XARCH)) |
| IMAGE_NAME = $(notdir $(IMAGE)) |
| |
| # default kernel configurations that appear to be usable |
| DEFCONFIG_i386 = defconfig |
| DEFCONFIG_x86_64 = defconfig |
| DEFCONFIG_x86 = defconfig |
| DEFCONFIG_arm64 = defconfig |
| DEFCONFIG_arm = multi_v7_defconfig |
| DEFCONFIG_mips32le = malta_defconfig |
| DEFCONFIG_mips32be = malta_defconfig |
| DEFCONFIG_ppc = pmac32_defconfig |
| DEFCONFIG_ppc64 = powernv_be_defconfig |
| DEFCONFIG_ppc64le = powernv_defconfig |
| DEFCONFIG_riscv = defconfig |
| DEFCONFIG_s390 = defconfig |
| DEFCONFIG_loongarch = defconfig |
| DEFCONFIG = $(DEFCONFIG_$(XARCH)) |
| |
| EXTRACONFIG_mips32be = -d CONFIG_CPU_LITTLE_ENDIAN -e CONFIG_CPU_BIG_ENDIAN |
| EXTRACONFIG = $(EXTRACONFIG_$(XARCH)) |
| |
| # optional tests to run (default = all) |
| TEST = |
| |
| # QEMU_ARCH: arch names used by qemu |
| QEMU_ARCH_i386 = i386 |
| QEMU_ARCH_x86_64 = x86_64 |
| QEMU_ARCH_x86 = x86_64 |
| QEMU_ARCH_arm64 = aarch64 |
| QEMU_ARCH_arm = arm |
| QEMU_ARCH_mips32le = mipsel # works with malta_defconfig |
| QEMU_ARCH_mips32be = mips |
| QEMU_ARCH_ppc = ppc |
| QEMU_ARCH_ppc64 = ppc64 |
| QEMU_ARCH_ppc64le = ppc64 |
| QEMU_ARCH_riscv = riscv64 |
| QEMU_ARCH_s390 = s390x |
| QEMU_ARCH_loongarch = loongarch64 |
| QEMU_ARCH = $(QEMU_ARCH_$(XARCH)) |
| |
| QEMU_ARCH_USER_ppc64le = ppc64le |
| QEMU_ARCH_USER = $(or $(QEMU_ARCH_USER_$(XARCH)),$(QEMU_ARCH_$(XARCH))) |
| |
| QEMU_BIOS_DIR = /usr/share/edk2/ |
| QEMU_BIOS_loongarch = $(QEMU_BIOS_DIR)/loongarch64/OVMF_CODE.fd |
| |
| ifneq ($(QEMU_BIOS_$(XARCH)),) |
| QEMU_ARGS_BIOS = -bios $(QEMU_BIOS_$(XARCH)) |
| endif |
| |
| # QEMU_ARGS : some arch-specific args to pass to qemu |
| QEMU_ARGS_i386 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" |
| QEMU_ARGS_x86_64 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" |
| QEMU_ARGS_x86 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" |
| QEMU_ARGS_arm64 = -M virt -cpu cortex-a53 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" |
| QEMU_ARGS_arm = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" |
| QEMU_ARGS_mips32le = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" |
| QEMU_ARGS_mips32be = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" |
| QEMU_ARGS_ppc = -M g3beige -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" |
| QEMU_ARGS_ppc64 = -M powernv -append "console=hvc0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" |
| QEMU_ARGS_ppc64le = -M powernv -append "console=hvc0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" |
| QEMU_ARGS_riscv = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" |
| QEMU_ARGS_s390 = -M s390-ccw-virtio -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" |
| QEMU_ARGS_loongarch = -M virt -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)" |
| QEMU_ARGS = -m 1G $(QEMU_ARGS_$(XARCH)) $(QEMU_ARGS_BIOS) $(QEMU_ARGS_EXTRA) |
| |
| # OUTPUT is only set when run from the main makefile, otherwise |
| # it defaults to this nolibc directory. |
| OUTPUT ?= $(CURDIR)/ |
| |
| ifeq ($(V),1) |
| Q= |
| else |
| Q=@ |
| endif |
| |
| CFLAGS_i386 = $(call cc-option,-m32) |
| CFLAGS_ppc = -m32 -mbig-endian -mno-vsx $(call cc-option,-mmultiple) |
| CFLAGS_ppc64 = -m64 -mbig-endian -mno-vsx $(call cc-option,-mmultiple) |
| CFLAGS_ppc64le = -m64 -mlittle-endian -mno-vsx $(call cc-option,-mabi=elfv2) |
| CFLAGS_s390 = -m64 |
| CFLAGS_mips32le = -EL -mabi=32 -fPIC |
| CFLAGS_mips32be = -EB -mabi=32 |
| CFLAGS_STACKPROTECTOR ?= $(call cc-option,-mstack-protector-guard=global $(call cc-option,-fstack-protector-all)) |
| CFLAGS ?= -Os -fno-ident -fno-asynchronous-unwind-tables -std=c89 -W -Wall -Wextra \ |
| $(call cc-option,-fno-stack-protector) \ |
| $(CFLAGS_$(XARCH)) $(CFLAGS_STACKPROTECTOR) $(CFLAGS_EXTRA) |
| LDFLAGS := |
| |
| LIBGCC := -lgcc |
| |
| ifneq ($(LLVM),) |
| # Not needed for clang |
| LIBGCC := |
| endif |
| |
| # Modify CFLAGS based on LLVM= |
| include $(srctree)/tools/scripts/Makefile.include |
| |
| # GCC uses "s390", clang "systemz" |
| CLANG_CROSS_FLAGS := $(subst --target=s390-linux,--target=systemz-linux,$(CLANG_CROSS_FLAGS)) |
| |
| REPORT ?= awk '/\[OK\][\r]*$$/{p++} /\[FAIL\][\r]*$$/{if (!f) printf("\n"); f++; print;} /\[SKIPPED\][\r]*$$/{s++} \ |
| END{ printf("\n%3d test(s): %3d passed, %3d skipped, %3d failed => status: ", p+s+f, p, s, f); \ |
| if (f || !p) printf("failure\n"); else if (s) printf("warning\n"); else printf("success\n");; \ |
| printf("\nSee all results in %s\n", ARGV[1]); }' |
| |
| help: |
| @echo "Supported targets under selftests/nolibc:" |
| @echo " all call the \"run\" target below" |
| @echo " help this help" |
| @echo " sysroot create the nolibc sysroot here (uses \$$ARCH)" |
| @echo " nolibc-test build the executable (uses \$$CC and \$$CROSS_COMPILE)" |
| @echo " libc-test build an executable using the compiler's default libc instead" |
| @echo " run-user runs the executable under QEMU (uses \$$XARCH, \$$TEST)" |
| @echo " initramfs.cpio prepare the initramfs archive with nolibc-test" |
| @echo " initramfs prepare the initramfs tree with nolibc-test" |
| @echo " defconfig create a fresh new default config (uses \$$XARCH)" |
| @echo " kernel (re)build the kernel (uses \$$XARCH)" |
| @echo " kernel-standalone (re)build the kernel with the initramfs (uses \$$XARCH)" |
| @echo " run runs the kernel in QEMU after building it (uses \$$XARCH, \$$TEST)" |
| @echo " rerun runs a previously prebuilt kernel in QEMU (uses \$$XARCH, \$$TEST)" |
| @echo " clean clean the sysroot, initramfs, build and output files" |
| @echo "" |
| @echo "The output file is \"run.out\". Test ranges may be passed using \$$TEST." |
| @echo "" |
| @echo "Currently using the following variables:" |
| @echo " ARCH = $(ARCH)" |
| @echo " XARCH = $(XARCH)" |
| @echo " CROSS_COMPILE = $(CROSS_COMPILE)" |
| @echo " CC = $(CC)" |
| @echo " OUTPUT = $(OUTPUT)" |
| @echo " TEST = $(TEST)" |
| @echo " QEMU_ARCH = $(if $(QEMU_ARCH),$(QEMU_ARCH),UNKNOWN_ARCH) [determined from \$$XARCH]" |
| @echo " IMAGE_NAME = $(if $(IMAGE_NAME),$(IMAGE_NAME),UNKNOWN_ARCH) [determined from \$$XARCH]" |
| @echo "" |
| |
| all: run |
| |
| sysroot: sysroot/$(ARCH)/include |
| |
| sysroot/$(ARCH)/include: |
| $(Q)rm -rf sysroot/$(ARCH) sysroot/sysroot |
| $(QUIET_MKDIR)mkdir -p sysroot |
| $(Q)$(MAKE) -C $(srctree) outputmakefile |
| $(Q)$(MAKE) -C $(srctree)/tools/include/nolibc ARCH=$(ARCH) OUTPUT=$(CURDIR)/sysroot/ headers_standalone |
| $(Q)mv sysroot/sysroot sysroot/$(ARCH) |
| |
| ifneq ($(NOLIBC_SYSROOT),0) |
| nolibc-test: nolibc-test.c nolibc-test-linkage.c sysroot/$(ARCH)/include |
| $(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \ |
| -nostdlib -nostdinc -static -Isysroot/$(ARCH)/include nolibc-test.c nolibc-test-linkage.c $(LIBGCC) |
| else |
| nolibc-test: nolibc-test.c nolibc-test-linkage.c |
| $(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \ |
| -nostdlib -static -include $(srctree)/tools/include/nolibc/nolibc.h nolibc-test.c nolibc-test-linkage.c $(LIBGCC) |
| endif |
| |
| libc-test: nolibc-test.c nolibc-test-linkage.c |
| $(QUIET_CC)$(HOSTCC) -o $@ nolibc-test.c nolibc-test-linkage.c |
| |
| # local libc-test |
| run-libc-test: libc-test |
| $(Q)./libc-test > "$(CURDIR)/run.out" || : |
| $(Q)$(REPORT) $(CURDIR)/run.out |
| |
| # local nolibc-test |
| run-nolibc-test: nolibc-test |
| $(Q)./nolibc-test > "$(CURDIR)/run.out" || : |
| $(Q)$(REPORT) $(CURDIR)/run.out |
| |
| # qemu user-land test |
| run-user: nolibc-test |
| $(Q)qemu-$(QEMU_ARCH_USER) ./nolibc-test > "$(CURDIR)/run.out" || : |
| $(Q)$(REPORT) $(CURDIR)/run.out |
| |
| initramfs.cpio: kernel nolibc-test |
| $(QUIET_GEN)echo 'file /init nolibc-test 755 0 0' | $(objtree)/usr/gen_init_cpio - > initramfs.cpio |
| |
| initramfs: nolibc-test |
| $(QUIET_MKDIR)mkdir -p initramfs |
| $(call QUIET_INSTALL, initramfs/init) |
| $(Q)cp nolibc-test initramfs/init |
| |
| defconfig: |
| $(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) mrproper $(DEFCONFIG) prepare |
| $(Q)if [ -n "$(EXTRACONFIG)" ]; then \ |
| $(srctree)/scripts/config --file $(objtree)/.config $(EXTRACONFIG); \ |
| $(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) olddefconfig < /dev/null; \ |
| fi |
| |
| kernel: |
| $(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) $(IMAGE_NAME) < /dev/null |
| |
| kernel-standalone: initramfs |
| $(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) $(IMAGE_NAME) CONFIG_INITRAMFS_SOURCE=$(CURDIR)/initramfs < /dev/null |
| |
| # run the tests after building the kernel |
| run: kernel initramfs.cpio |
| $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -serial stdio $(QEMU_ARGS) > "$(CURDIR)/run.out" |
| $(Q)$(REPORT) $(CURDIR)/run.out |
| |
| # re-run the tests from an existing kernel |
| rerun: |
| $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -serial stdio $(QEMU_ARGS) > "$(CURDIR)/run.out" |
| $(Q)$(REPORT) $(CURDIR)/run.out |
| |
| # report with existing test log |
| report: |
| $(Q)$(REPORT) $(CURDIR)/run.out |
| |
| clean: |
| $(call QUIET_CLEAN, sysroot) |
| $(Q)rm -rf sysroot |
| $(call QUIET_CLEAN, nolibc-test) |
| $(Q)rm -f nolibc-test |
| $(call QUIET_CLEAN, libc-test) |
| $(Q)rm -f libc-test |
| $(call QUIET_CLEAN, initramfs.cpio) |
| $(Q)rm -rf initramfs.cpio |
| $(call QUIET_CLEAN, initramfs) |
| $(Q)rm -rf initramfs |
| $(call QUIET_CLEAN, run.out) |
| $(Q)rm -rf run.out |
| |
| .PHONY: sysroot/$(ARCH)/include |
