1# SPDX-License-Identifier: GPL-2.0 2# Makefile for nolibc tests 3# we're in ".../tools/testing/selftests/nolibc" 4ifeq ($(srctree),) 5srctree := $(patsubst %/tools/testing/selftests/,%,$(dir $(CURDIR))) 6endif 7 8include $(srctree)/tools/scripts/utilities.mak 9# We need this for the "__cc-option" macro. 10include $(srctree)/scripts/Makefile.compiler 11 12ifneq ($(O),) 13ifneq ($(call is-absolute,$(O)),y) 14$(error Only absolute O= parameters are supported) 15endif 16objtree := $(O) 17else 18objtree ?= $(srctree) 19endif 20 21ifeq ($(ARCH),) 22include $(srctree)/scripts/subarch.include 23ARCH = $(SUBARCH) 24endif 25 26cc-option = $(call __cc-option, $(CC),$(CLANG_CROSS_FLAGS),$(1),$(2)) 27 28# XARCH extends the kernel's ARCH with a few variants of the same 29# architecture that only differ by the configuration, the toolchain 30# and the Qemu program used. It is copied as-is into ARCH except for 31# a few specific values which are mapped like this: 32# 33# XARCH | ARCH | config 34# -------------|-----------|------------------------- 35# ppc | powerpc | 32 bits 36# ppc64 | powerpc | 64 bits big endian 37# ppc64le | powerpc | 64 bits little endian 38# 39# It is recommended to only use XARCH, though it does not harm if 40# ARCH is already set. For simplicity, ARCH is sufficient for all 41# architectures where both are equal. 42 43# configure default variants for target kernel supported architectures 44XARCH_powerpc = ppc 45XARCH_mips = mips32le 46XARCH_riscv = riscv64 47XARCH = $(or $(XARCH_$(ARCH)),$(ARCH)) 48 49# map from user input variants to their kernel supported architectures 50ARCH_x32 = x86 51ARCH_armthumb = arm 52ARCH_ppc = powerpc 53ARCH_ppc64 = powerpc 54ARCH_ppc64le = powerpc 55ARCH_mips32le = mips 56ARCH_mips32be = mips 57ARCH_mipsn32le = mips 58ARCH_mipsn32be = mips 59ARCH_mips64le = mips 60ARCH_mips64be = mips 61ARCH_riscv32 = riscv 62ARCH_riscv64 = riscv 63ARCH_s390x = s390 64ARCH_sparc32 = sparc 65ARCH_sparc64 = sparc 66ARCH_sh4 = sh 67ARCH_parisc32 = parisc 68ARCH := $(or $(ARCH_$(XARCH)),$(XARCH)) 69 70# kernel image names by architecture 71IMAGE_i386 = arch/x86/boot/bzImage 72IMAGE_x86_64 = arch/x86/boot/bzImage 73IMAGE_x32 = arch/x86/boot/bzImage 74IMAGE_x86 = arch/x86/boot/bzImage 75IMAGE_arm64 = arch/arm64/boot/Image 76IMAGE_arm = arch/arm/boot/zImage 77IMAGE_armthumb = arch/arm/boot/zImage 78IMAGE_ppc64le = arch/powerpc/boot/zImage 79IMAGE_riscv32 = arch/riscv/boot/Image 80IMAGE_riscv64 = arch/riscv/boot/Image 81IMAGE_s390x = arch/s390/boot/bzImage 82IMAGE_loongarch = arch/loongarch/boot/vmlinuz.efi 83IMAGE_sparc32 = arch/sparc/boot/image 84IMAGE_sparc64 = arch/sparc/boot/image 85IMAGE_sh4 = arch/sh/boot/zImage 86IMAGE = $(objtree)/$(or $(IMAGE_$(XARCH)),vmlinux) 87IMAGE_NAME = $(notdir $(IMAGE)) 88 89# default kernel configurations that appear to be usable 90DEFCONFIG_arm = multi_v7_defconfig 91DEFCONFIG_armthumb = multi_v7_defconfig 92DEFCONFIG_mips32le = malta_defconfig 93DEFCONFIG_mips32be = malta_defconfig generic/eb.config 94DEFCONFIG_mipsn32le = malta_defconfig generic/64r2.config 95DEFCONFIG_mipsn32be = malta_defconfig generic/64r6.config generic/eb.config 96DEFCONFIG_mips64le = malta_defconfig generic/64r6.config 97DEFCONFIG_mips64be = malta_defconfig generic/64r2.config generic/eb.config 98DEFCONFIG_ppc = pmac32_defconfig 99DEFCONFIG_ppc64 = powernv_be_defconfig 100DEFCONFIG_ppc64le = powernv_defconfig 101DEFCONFIG_riscv32 = rv32_defconfig 102DEFCONFIG_sparc32 = sparc32_defconfig 103DEFCONFIG_sparc64 = sparc64_defconfig 104DEFCONFIG_m68k = virt_defconfig 105DEFCONFIG_sh4 = rts7751r2dplus_defconfig 106DEFCONFIG_openrisc = virt_defconfig 107DEFCONFIG = $(or $(DEFCONFIG_$(XARCH)),defconfig) 108 109EXTRACONFIG_x32 = -e CONFIG_X86_X32_ABI 110EXTRACONFIG_arm = -e CONFIG_NAMESPACES 111EXTRACONFIG_armthumb = -e CONFIG_NAMESPACES 112EXTRACONFIG_sparc32 = -e CONFIG_TMPFS 113EXTRACONFIG_m68k = -e CONFIG_BLK_DEV_INITRD 114EXTRACONFIG_sh4 = -e CONFIG_BLK_DEV_INITRD -e CONFIG_CMDLINE_FROM_BOOTLOADER 115EXTRACONFIG = $(EXTRACONFIG_$(XARCH)) 116 117# optional tests to run (default = all) 118TEST = 119 120# QEMU_ARCH: arch names used by qemu 121QEMU_ARCH_x32 = x86_64 122QEMU_ARCH_x86 = x86_64 123QEMU_ARCH_arm64 = aarch64 124QEMU_ARCH_armthumb = arm 125QEMU_ARCH_mips32le = mipsel # works with malta_defconfig 126QEMU_ARCH_mips32be = mips 127QEMU_ARCH_mipsn32le = mips64el 128QEMU_ARCH_mipsn32be = mips64 129QEMU_ARCH_mips64le = mips64el 130QEMU_ARCH_mips64be = mips64 131QEMU_ARCH_ppc64le = ppc64 132QEMU_ARCH_loongarch = loongarch64 133QEMU_ARCH_sparc32 = sparc 134QEMU_ARCH_openrisc = or1k 135QEMU_ARCH_parisc32 = hppa 136QEMU_ARCH = $(or $(QEMU_ARCH_$(XARCH)),$(XARCH)) 137 138QEMU_ARCH_USER_ppc64le = ppc64le 139QEMU_ARCH_USER_mipsn32le = mipsn32el 140QEMU_ARCH_USER_mipsn32be = mipsn32 141QEMU_ARCH_USER = $(or $(QEMU_ARCH_USER_$(XARCH)),$(QEMU_ARCH)) 142 143QEMU_BIOS_DIR = /usr/share/edk2/ 144QEMU_BIOS_loongarch = $(QEMU_BIOS_DIR)/loongarch64/OVMF_CODE.fd 145 146ifneq ($(QEMU_BIOS_$(XARCH)),) 147QEMU_ARGS_BIOS = -bios $(QEMU_BIOS_$(XARCH)) 148endif 149 150# QEMU_ARGS : some arch-specific args to pass to qemu 151QEMU_ARGS_i386 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" 152QEMU_ARGS_x86_64 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" 153QEMU_ARGS_x32 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" 154QEMU_ARGS_x86 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" 155QEMU_ARGS_arm64 = -M virt -cpu cortex-a53 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 156QEMU_ARGS_arm = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 157QEMU_ARGS_armthumb = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 158QEMU_ARGS_mips32le = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 159QEMU_ARGS_mips32be = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 160QEMU_ARGS_mipsn32le = -M malta -cpu 5KEc -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 161QEMU_ARGS_mipsn32be = -M malta -cpu I6400 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 162QEMU_ARGS_mips64le = -M malta -cpu I6400 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 163QEMU_ARGS_mips64be = -M malta -cpu 5KEc -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 164QEMU_ARGS_ppc = -M g3beige -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 165QEMU_ARGS_ppc64 = -M powernv -append "console=hvc0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 166QEMU_ARGS_ppc64le = -M powernv -append "console=hvc0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 167QEMU_ARGS_riscv32 = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 168QEMU_ARGS_riscv64 = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 169QEMU_ARGS_s390x = -M s390-ccw-virtio -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 170QEMU_ARGS_loongarch = -M virt -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 171QEMU_ARGS_sparc32 = -M SS-5 -m 256M -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 172QEMU_ARGS_sparc64 = -M sun4u -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 173QEMU_ARGS_m68k = -M virt -append "console=ttyGF0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 174QEMU_ARGS_sh4 = -M r2d -serial file:/dev/stdout -append "console=ttySC1,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 175QEMU_ARGS_openrisc = -M virt -m 512M -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 176QEMU_ARGS_parisc32 = -M B160L -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 177QEMU_ARGS = -m 1G $(QEMU_ARGS_$(XARCH)) $(QEMU_ARGS_BIOS) $(QEMU_ARGS_EXTRA) 178 179# OUTPUT is only set when run from the main makefile, otherwise 180# it defaults to this nolibc directory. 181OUTPUT ?= $(CURDIR)/ 182 183ifeq ($(V),1) 184Q= 185else 186Q=@ 187endif 188 189CFLAGS_i386 = $(call cc-option,-m32) 190CFLAGS_x32 = -mx32 191CFLAGS_arm = -marm 192CFLAGS_armthumb = -mthumb -march=armv6t2 193CFLAGS_parisc32 = -mfast-indirect-calls 194CFLAGS_ppc = -m32 -mbig-endian -mno-vsx $(call cc-option,-mmultiple) 195CFLAGS_ppc64 = -m64 -mbig-endian -mno-vsx $(call cc-option,-mmultiple) 196CFLAGS_ppc64le = -m64 -mlittle-endian -mno-vsx $(call cc-option,-mabi=elfv2) 197CFLAGS_s390x = -m64 198CFLAGS_mips32le = -EL -mabi=32 -fPIC 199CFLAGS_mips32be = -EB -mabi=32 200CFLAGS_mipsn32le = -EL -mabi=n32 -fPIC -march=mips64r2 201CFLAGS_mipsn32be = -EB -mabi=n32 -march=mips64r6 202CFLAGS_mips64le = -EL -mabi=64 -march=mips64r6 203CFLAGS_mips64be = -EB -mabi=64 -march=mips64r2 204CFLAGS_loongarch = $(if $(LLVM),-fuse-ld=lld) 205CFLAGS_sparc32 = $(call cc-option,-m32) -mcpu=v8 206CFLAGS_sh4 = -ml -m4 207ifeq ($(origin XARCH),command line) 208CFLAGS_XARCH = $(CFLAGS_$(XARCH)) 209endif 210 211LDLIBS_ppc = $(if $(LLVM),,-lgcc) 212LDLIBS_openrisc = $(if $(LLVM),,-lgcc) 213LDLIBS = $(LDLIBS_$(XARCH)) 214 215include Makefile.include 216 217CFLAGS ?= $(CFLAGS_NOLIBC_TEST) $(CFLAGS_XARCH) $(CFLAGS_EXTRA) 218LDFLAGS := 219 220# Modify CFLAGS based on LLVM= 221include $(srctree)/tools/scripts/Makefile.include 222 223REPORT ?= awk '/\[OK\][\r]*$$/{p++} /\[FAIL\][\r]*$$/{if (!f) printf("\n"); f++; print;} /\[SKIPPED\][\r]*$$/{s++} \ 224 /^Total number of errors:/{done++} \ 225 END{ printf("\n%3d test(s): %3d passed, %3d skipped, %3d failed => status: ", p+s+f, p, s, f); \ 226 if (f || !p || !done) printf("failure\n"); else if (s) printf("warning\n"); else printf("success\n");; \ 227 printf("\nSee all results in %s\n", ARGV[1]); }' 228 229# Execute the toplevel kernel Makefile 230KBUILD_MAKE = $(MAKE) -C $(srctree) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) LLVM= 231 232help: 233 @echo "Supported targets under selftests/nolibc:" 234 @echo " all call the \"run\" target below" 235 @echo " help this help" 236 @echo " sysroot create the nolibc sysroot here (uses \$$ARCH)" 237 @echo " nolibc-test build the executable (uses \$$CC or \$$CROSS_COMPILE)" 238 @echo " libc-test build an executable using the compiler's default libc instead" 239 @echo " run-user runs the executable under QEMU (uses \$$XARCH, \$$TEST)" 240 @echo " initramfs.cpio prepare the initramfs archive with nolibc-test" 241 @echo " initramfs prepare the initramfs tree with nolibc-test" 242 @echo " defconfig create a fresh new default config (uses \$$XARCH)" 243 @echo " kernel (re)build the kernel (uses \$$XARCH, \$$CROSS_COMPILE)" 244 @echo " kernel-standalone (re)build the kernel with the initramfs (uses \$$XARCH, \$$CROSS_COMPILE)" 245 @echo " run runs the kernel in QEMU after building it (uses \$$XARCH, \$$TEST)" 246 @echo " rerun runs a previously prebuilt kernel in QEMU (uses \$$XARCH, \$$TEST)" 247 @echo " clean clean the sysroot, initramfs, build and output files" 248 @echo "" 249 @echo "The output file is \"run.out\". Test ranges may be passed using \$$TEST." 250 @echo "" 251 @echo "Currently using the following variables:" 252 @echo " ARCH = $(ARCH)" 253 @echo " XARCH = $(XARCH)" 254 @echo " CROSS_COMPILE = $(CROSS_COMPILE)" 255 @echo " CC = $(CC)" 256 @echo " OUTPUT = $(OUTPUT)" 257 @echo " TEST = $(TEST)" 258 @echo " QEMU_ARCH = $(if $(QEMU_ARCH),$(QEMU_ARCH),UNKNOWN_ARCH) [determined from \$$XARCH]" 259 @echo " IMAGE_NAME = $(if $(IMAGE_NAME),$(IMAGE_NAME),UNKNOWN_ARCH) [determined from \$$XARCH]" 260 @echo "" 261 262all: run 263 264sysroot: sysroot/$(ARCH)/include 265 266sysroot/$(ARCH)/include: 267 $(Q)rm -rf sysroot/$(ARCH) sysroot/sysroot 268 $(QUIET_MKDIR)mkdir -p sysroot 269 $(Q)$(MAKE) -C $(srctree) outputmakefile 270 $(Q)$(MAKE) -C $(srctree)/tools/include/nolibc ARCH=$(ARCH) OUTPUT=$(CURDIR)/sysroot/ headers_standalone headers_check 271 $(Q)mv sysroot/sysroot sysroot/$(ARCH) 272 273nolibc-test: $(NOLIBC_TEST_SOURCES) sysroot/$(ARCH)/include 274 $(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \ 275 -nostdlib -nostdinc -static -Isysroot/$(ARCH)/include $(NOLIBC_TEST_SOURCES) $(LDLIBS) 276 277libc-test: $(NOLIBC_TEST_SOURCES) 278 $(QUIET_CC)$(HOSTCC) -o $@ $(NOLIBC_TEST_SOURCES) 279 280# local libc-test 281run-libc-test: libc-test 282 $(Q)./libc-test > "$(CURDIR)/run.out" || : 283 $(Q)$(REPORT) $(CURDIR)/run.out 284 285# local nolibc-test 286run-nolibc-test: nolibc-test 287 $(Q)./nolibc-test > "$(CURDIR)/run.out" || : 288 $(Q)$(REPORT) $(CURDIR)/run.out 289 290# qemu user-land test 291run-user: nolibc-test 292 $(Q)qemu-$(QEMU_ARCH_USER) ./nolibc-test > "$(CURDIR)/run.out" || : 293 $(Q)$(REPORT) $(CURDIR)/run.out 294 295initramfs.cpio: kernel nolibc-test 296 $(QUIET_GEN)echo 'file /init nolibc-test 755 0 0' | $(objtree)/usr/gen_init_cpio - > initramfs.cpio 297 298initramfs: nolibc-test 299 $(QUIET_MKDIR)mkdir -p initramfs 300 $(call QUIET_INSTALL, initramfs/init) 301 $(Q)cp nolibc-test initramfs/init 302 303defconfig: 304 $(Q)$(KBUILD_MAKE) $(DEFCONFIG) 305 $(Q)if [ -n "$(EXTRACONFIG)" ]; then \ 306 $(srctree)/scripts/config --file $(objtree)/.config $(EXTRACONFIG); \ 307 $(KBUILD_MAKE) olddefconfig < /dev/null; \ 308 fi 309 310kernel: 311 $(Q)$(KBUILD_MAKE) $(IMAGE_NAME) < /dev/null 312 313kernel-standalone: initramfs 314 $(Q)$(KBUILD_MAKE) $(IMAGE_NAME) CONFIG_INITRAMFS_SOURCE=$(CURDIR)/initramfs < /dev/null 315 316# run the tests after building the kernel 317run: kernel initramfs.cpio 318 $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -serial file:/dev/stdout $(QEMU_ARGS) > "$(CURDIR)/run.out" 319 $(Q)$(REPORT) $(CURDIR)/run.out 320 321# re-run the tests from an existing kernel 322rerun: 323 $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -serial file:/dev/stdout $(QEMU_ARGS) > "$(CURDIR)/run.out" 324 $(Q)$(REPORT) $(CURDIR)/run.out 325 326# report with existing test log 327report: 328 $(Q)$(REPORT) $(CURDIR)/run.out 329 330clean: 331 $(call QUIET_CLEAN, sysroot) 332 $(Q)rm -rf sysroot 333 $(call QUIET_CLEAN, nolibc-test) 334 $(Q)rm -f nolibc-test 335 $(call QUIET_CLEAN, libc-test) 336 $(Q)rm -f libc-test 337 $(call QUIET_CLEAN, initramfs.cpio) 338 $(Q)rm -rf initramfs.cpio 339 $(call QUIET_CLEAN, initramfs) 340 $(Q)rm -rf initramfs 341 $(call QUIET_CLEAN, run.out) 342 $(Q)rm -rf run.out 343 344.PHONY: sysroot/$(ARCH)/include 345