1# SPDX-License-Identifier: GPL-2.0 2# Makefile for nolibc tests 3include ../../../scripts/Makefile.include 4 5# we're in ".../tools/testing/selftests/nolibc" 6ifeq ($(srctree),) 7srctree := $(patsubst %/tools/testing/selftests/,%,$(dir $(CURDIR))) 8endif 9 10ifeq ($(ARCH),) 11include $(srctree)/scripts/subarch.include 12ARCH = $(SUBARCH) 13endif 14 15# kernel image names by architecture 16IMAGE_i386 = arch/x86/boot/bzImage 17IMAGE_x86_64 = arch/x86/boot/bzImage 18IMAGE_x86 = arch/x86/boot/bzImage 19IMAGE_arm64 = arch/arm64/boot/Image 20IMAGE_arm = arch/arm/boot/zImage 21IMAGE_mips = vmlinuz 22IMAGE_riscv = arch/riscv/boot/Image 23IMAGE_s390 = arch/s390/boot/bzImage 24IMAGE = $(IMAGE_$(ARCH)) 25IMAGE_NAME = $(notdir $(IMAGE)) 26 27# default kernel configurations that appear to be usable 28DEFCONFIG_i386 = defconfig 29DEFCONFIG_x86_64 = defconfig 30DEFCONFIG_x86 = defconfig 31DEFCONFIG_arm64 = defconfig 32DEFCONFIG_arm = multi_v7_defconfig 33DEFCONFIG_mips = malta_defconfig 34DEFCONFIG_riscv = defconfig 35DEFCONFIG_s390 = defconfig 36DEFCONFIG = $(DEFCONFIG_$(ARCH)) 37 38# optional tests to run (default = all) 39TEST = 40 41# QEMU_ARCH: arch names used by qemu 42QEMU_ARCH_i386 = i386 43QEMU_ARCH_x86_64 = x86_64 44QEMU_ARCH_x86 = x86_64 45QEMU_ARCH_arm64 = aarch64 46QEMU_ARCH_arm = arm 47QEMU_ARCH_mips = mipsel # works with malta_defconfig 48QEMU_ARCH_riscv = riscv64 49QEMU_ARCH_s390 = s390x 50QEMU_ARCH = $(QEMU_ARCH_$(ARCH)) 51 52# QEMU_ARGS : some arch-specific args to pass to qemu 53QEMU_ARGS_i386 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" 54QEMU_ARGS_x86_64 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" 55QEMU_ARGS_x86 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" 56QEMU_ARGS_arm64 = -M virt -cpu cortex-a53 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 57QEMU_ARGS_arm = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 58QEMU_ARGS_mips = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 59QEMU_ARGS_riscv = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 60QEMU_ARGS_s390 = -M s390-ccw-virtio -m 1G -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 61QEMU_ARGS = $(QEMU_ARGS_$(ARCH)) 62 63# OUTPUT is only set when run from the main makefile, otherwise 64# it defaults to this nolibc directory. 65OUTPUT ?= $(CURDIR)/ 66 67ifeq ($(V),1) 68Q= 69else 70Q=@ 71endif 72 73CFLAGS_s390 = -m64 74CFLAGS ?= -Os -fno-ident -fno-asynchronous-unwind-tables $(CFLAGS_$(ARCH)) 75LDFLAGS := -s 76 77help: 78 @echo "Supported targets under selftests/nolibc:" 79 @echo " all call the \"run\" target below" 80 @echo " help this help" 81 @echo " sysroot create the nolibc sysroot here (uses \$$ARCH)" 82 @echo " nolibc-test build the executable (uses \$$CC and \$$CROSS_COMPILE)" 83 @echo " run-user runs the executable under QEMU (uses \$$ARCH, \$$TEST)" 84 @echo " initramfs prepare the initramfs with nolibc-test" 85 @echo " defconfig create a fresh new default config (uses \$$ARCH)" 86 @echo " kernel (re)build the kernel with the initramfs (uses \$$ARCH)" 87 @echo " run runs the kernel in QEMU after building it (uses \$$ARCH, \$$TEST)" 88 @echo " rerun runs a previously prebuilt kernel in QEMU (uses \$$ARCH, \$$TEST)" 89 @echo " clean clean the sysroot, initramfs, build and output files" 90 @echo "" 91 @echo "The output file is \"run.out\". Test ranges may be passed using \$$TEST." 92 @echo "" 93 @echo "Currently using the following variables:" 94 @echo " ARCH = $(ARCH)" 95 @echo " CROSS_COMPILE = $(CROSS_COMPILE)" 96 @echo " CC = $(CC)" 97 @echo " OUTPUT = $(OUTPUT)" 98 @echo " TEST = $(TEST)" 99 @echo " QEMU_ARCH = $(if $(QEMU_ARCH),$(QEMU_ARCH),UNKNOWN_ARCH) [determined from \$$ARCH]" 100 @echo " IMAGE_NAME = $(if $(IMAGE_NAME),$(IMAGE_NAME),UNKNOWN_ARCH) [determined from \$$ARCH]" 101 @echo "" 102 103all: run 104 105sysroot: sysroot/$(ARCH)/include 106 107sysroot/$(ARCH)/include: 108 $(Q)rm -rf sysroot/$(ARCH) sysroot/sysroot 109 $(QUIET_MKDIR)mkdir -p sysroot 110 $(Q)$(MAKE) -C ../../../include/nolibc ARCH=$(ARCH) OUTPUT=$(CURDIR)/sysroot/ headers_standalone 111 $(Q)mv sysroot/sysroot sysroot/$(ARCH) 112 113nolibc-test: nolibc-test.c sysroot/$(ARCH)/include 114 $(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \ 115 -nostdlib -static -Isysroot/$(ARCH)/include $< -lgcc 116 117# qemu user-land test 118run-user: nolibc-test 119 $(Q)qemu-$(QEMU_ARCH) ./nolibc-test > "$(CURDIR)/run.out" || : 120 $(Q)grep -w FAIL "$(CURDIR)/run.out" && echo "See all results in $(CURDIR)/run.out" || echo "$$(grep -c ^[0-9].*OK $(CURDIR)/run.out) test(s) passed." 121 122initramfs: nolibc-test 123 $(QUIET_MKDIR)mkdir -p initramfs 124 $(call QUIET_INSTALL, initramfs/init) 125 $(Q)cp nolibc-test initramfs/init 126 127defconfig: 128 $(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) mrproper $(DEFCONFIG) prepare 129 130kernel: initramfs 131 $(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) $(IMAGE_NAME) CONFIG_INITRAMFS_SOURCE=$(CURDIR)/initramfs 132 133# run the tests after building the kernel 134run: kernel 135 $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(srctree)/$(IMAGE)" -serial stdio $(QEMU_ARGS) > "$(CURDIR)/run.out" 136 $(Q)grep -w FAIL "$(CURDIR)/run.out" && echo "See all results in $(CURDIR)/run.out" || echo "$$(grep -c ^[0-9].*OK $(CURDIR)/run.out) test(s) passed." 137 138# re-run the tests from an existing kernel 139rerun: 140 $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(srctree)/$(IMAGE)" -serial stdio $(QEMU_ARGS) > "$(CURDIR)/run.out" 141 $(Q)grep -w FAIL "$(CURDIR)/run.out" && echo "See all results in $(CURDIR)/run.out" || echo "$$(grep -c ^[0-9].*OK $(CURDIR)/run.out) test(s) passed." 142 143clean: 144 $(call QUIET_CLEAN, sysroot) 145 $(Q)rm -rf sysroot 146 $(call QUIET_CLEAN, nolibc-test) 147 $(Q)rm -f nolibc-test 148 $(call QUIET_CLEAN, initramfs) 149 $(Q)rm -rf initramfs 150 $(call QUIET_CLEAN, run.out) 151 $(Q)rm -rf run.out 152 153.PHONY: sysroot/$(ARCH)/include 154