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 := $(or $(ARCH_$(XARCH)),$(XARCH)) 68 69# kernel image names by architecture 70IMAGE_i386 = arch/x86/boot/bzImage 71IMAGE_x86_64 = arch/x86/boot/bzImage 72IMAGE_x32 = arch/x86/boot/bzImage 73IMAGE_x86 = arch/x86/boot/bzImage 74IMAGE_arm64 = arch/arm64/boot/Image 75IMAGE_arm = arch/arm/boot/zImage 76IMAGE_armthumb = arch/arm/boot/zImage 77IMAGE_mips32le = vmlinuz 78IMAGE_mips32be = vmlinuz 79IMAGE_mipsn32le = vmlinuz 80IMAGE_mipsn32be = vmlinuz 81IMAGE_mips64le = vmlinuz 82IMAGE_mips64be = vmlinuz 83IMAGE_ppc = vmlinux 84IMAGE_ppc64 = vmlinux 85IMAGE_ppc64le = arch/powerpc/boot/zImage 86IMAGE_riscv = arch/riscv/boot/Image 87IMAGE_riscv32 = arch/riscv/boot/Image 88IMAGE_riscv64 = arch/riscv/boot/Image 89IMAGE_s390x = arch/s390/boot/bzImage 90IMAGE_s390 = arch/s390/boot/bzImage 91IMAGE_loongarch = arch/loongarch/boot/vmlinuz.efi 92IMAGE_sparc32 = arch/sparc/boot/image 93IMAGE_sparc64 = arch/sparc/boot/image 94IMAGE_m68k = vmlinux 95IMAGE_sh4 = arch/sh/boot/zImage 96IMAGE = $(objtree)/$(IMAGE_$(XARCH)) 97IMAGE_NAME = $(notdir $(IMAGE)) 98 99# default kernel configurations that appear to be usable 100DEFCONFIG_i386 = defconfig 101DEFCONFIG_x86_64 = defconfig 102DEFCONFIG_x32 = defconfig 103DEFCONFIG_x86 = defconfig 104DEFCONFIG_arm64 = defconfig 105DEFCONFIG_arm = multi_v7_defconfig 106DEFCONFIG_armthumb = multi_v7_defconfig 107DEFCONFIG_mips32le = malta_defconfig 108DEFCONFIG_mips32be = malta_defconfig generic/eb.config 109DEFCONFIG_mipsn32le = malta_defconfig generic/64r2.config 110DEFCONFIG_mipsn32be = malta_defconfig generic/64r6.config generic/eb.config 111DEFCONFIG_mips64le = malta_defconfig generic/64r6.config 112DEFCONFIG_mips64be = malta_defconfig generic/64r2.config generic/eb.config 113DEFCONFIG_ppc = pmac32_defconfig 114DEFCONFIG_ppc64 = powernv_be_defconfig 115DEFCONFIG_ppc64le = powernv_defconfig 116DEFCONFIG_riscv = defconfig 117DEFCONFIG_riscv32 = rv32_defconfig 118DEFCONFIG_riscv64 = defconfig 119DEFCONFIG_s390x = defconfig 120DEFCONFIG_s390 = defconfig compat.config 121DEFCONFIG_loongarch = defconfig 122DEFCONFIG_sparc32 = sparc32_defconfig 123DEFCONFIG_sparc64 = sparc64_defconfig 124DEFCONFIG_m68k = virt_defconfig 125DEFCONFIG_sh4 = rts7751r2dplus_defconfig 126DEFCONFIG = $(DEFCONFIG_$(XARCH)) 127 128EXTRACONFIG_x32 = -e CONFIG_X86_X32_ABI 129EXTRACONFIG_arm = -e CONFIG_NAMESPACES 130EXTRACONFIG_armthumb = -e CONFIG_NAMESPACES 131EXTRACONFIG_m68k = -e CONFIG_BLK_DEV_INITRD 132EXTRACONFIG_sh4 = -e CONFIG_BLK_DEV_INITRD -e CONFIG_CMDLINE_FROM_BOOTLOADER 133EXTRACONFIG = $(EXTRACONFIG_$(XARCH)) 134 135# optional tests to run (default = all) 136TEST = 137 138# QEMU_ARCH: arch names used by qemu 139QEMU_ARCH_i386 = i386 140QEMU_ARCH_x86_64 = x86_64 141QEMU_ARCH_x32 = x86_64 142QEMU_ARCH_x86 = x86_64 143QEMU_ARCH_arm64 = aarch64 144QEMU_ARCH_arm = arm 145QEMU_ARCH_armthumb = arm 146QEMU_ARCH_mips32le = mipsel # works with malta_defconfig 147QEMU_ARCH_mips32be = mips 148QEMU_ARCH_mipsn32le = mips64el 149QEMU_ARCH_mipsn32be = mips64 150QEMU_ARCH_mips64le = mips64el 151QEMU_ARCH_mips64be = mips64 152QEMU_ARCH_ppc = ppc 153QEMU_ARCH_ppc64 = ppc64 154QEMU_ARCH_ppc64le = ppc64 155QEMU_ARCH_riscv = riscv64 156QEMU_ARCH_riscv32 = riscv32 157QEMU_ARCH_riscv64 = riscv64 158QEMU_ARCH_s390x = s390x 159QEMU_ARCH_s390 = s390x 160QEMU_ARCH_loongarch = loongarch64 161QEMU_ARCH_sparc32 = sparc 162QEMU_ARCH_sparc64 = sparc64 163QEMU_ARCH_m68k = m68k 164QEMU_ARCH_sh4 = sh4 165QEMU_ARCH = $(QEMU_ARCH_$(XARCH)) 166 167QEMU_ARCH_USER_ppc64le = ppc64le 168QEMU_ARCH_USER_mipsn32le = mipsn32el 169QEMU_ARCH_USER_mipsn32be = mipsn32 170QEMU_ARCH_USER = $(or $(QEMU_ARCH_USER_$(XARCH)),$(QEMU_ARCH_$(XARCH))) 171 172QEMU_BIOS_DIR = /usr/share/edk2/ 173QEMU_BIOS_loongarch = $(QEMU_BIOS_DIR)/loongarch64/OVMF_CODE.fd 174 175ifneq ($(QEMU_BIOS_$(XARCH)),) 176QEMU_ARGS_BIOS = -bios $(QEMU_BIOS_$(XARCH)) 177endif 178 179# QEMU_ARGS : some arch-specific args to pass to qemu 180QEMU_ARGS_i386 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" 181QEMU_ARGS_x86_64 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" 182QEMU_ARGS_x32 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" 183QEMU_ARGS_x86 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" 184QEMU_ARGS_arm64 = -M virt -cpu cortex-a53 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 185QEMU_ARGS_arm = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 186QEMU_ARGS_armthumb = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 187QEMU_ARGS_mips32le = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 188QEMU_ARGS_mips32be = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 189QEMU_ARGS_mipsn32le = -M malta -cpu 5KEc -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 190QEMU_ARGS_mipsn32be = -M malta -cpu I6400 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 191QEMU_ARGS_mips64le = -M malta -cpu I6400 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 192QEMU_ARGS_mips64be = -M malta -cpu 5KEc -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" 193QEMU_ARGS_ppc = -M g3beige -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 194QEMU_ARGS_ppc64 = -M powernv -append "console=hvc0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 195QEMU_ARGS_ppc64le = -M powernv -append "console=hvc0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 196QEMU_ARGS_riscv = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 197QEMU_ARGS_riscv32 = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 198QEMU_ARGS_riscv64 = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 199QEMU_ARGS_s390x = -M s390-ccw-virtio -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 200QEMU_ARGS_s390 = -M s390-ccw-virtio -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 201QEMU_ARGS_loongarch = -M virt -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 202QEMU_ARGS_sparc32 = -M SS-5 -m 256M -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 203QEMU_ARGS_sparc64 = -M sun4u -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 204QEMU_ARGS_m68k = -M virt -append "console=ttyGF0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 205QEMU_ARGS_sh4 = -M r2d -serial file:/dev/stdout -append "console=ttySC1,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)" 206QEMU_ARGS = -m 1G $(QEMU_ARGS_$(XARCH)) $(QEMU_ARGS_BIOS) $(QEMU_ARGS_EXTRA) 207 208# OUTPUT is only set when run from the main makefile, otherwise 209# it defaults to this nolibc directory. 210OUTPUT ?= $(CURDIR)/ 211 212ifeq ($(V),1) 213Q= 214else 215Q=@ 216endif 217 218CFLAGS_i386 = $(call cc-option,-m32) 219CFLAGS_x32 = -mx32 220CFLAGS_arm = -marm 221CFLAGS_armthumb = -mthumb -march=armv6t2 222CFLAGS_ppc = -m32 -mbig-endian -mno-vsx $(call cc-option,-mmultiple) 223CFLAGS_ppc64 = -m64 -mbig-endian -mno-vsx $(call cc-option,-mmultiple) 224CFLAGS_ppc64le = -m64 -mlittle-endian -mno-vsx $(call cc-option,-mabi=elfv2) 225CFLAGS_s390x = -m64 226CFLAGS_s390 = -m31 227CFLAGS_mips32le = -EL -mabi=32 -fPIC 228CFLAGS_mips32be = -EB -mabi=32 229CFLAGS_mipsn32le = -EL -mabi=n32 -fPIC -march=mips64r2 230CFLAGS_mipsn32be = -EB -mabi=n32 -march=mips64r6 231CFLAGS_mips64le = -EL -mabi=64 -march=mips64r6 232CFLAGS_mips64be = -EB -mabi=64 -march=mips64r2 233CFLAGS_sparc32 = $(call cc-option,-m32) 234CFLAGS_sh4 = -ml -m4 235ifeq ($(origin XARCH),command line) 236CFLAGS_XARCH = $(CFLAGS_$(XARCH)) 237endif 238 239include Makefile.include 240 241CFLAGS ?= $(CFLAGS_NOLIBC_TEST) $(CFLAGS_XARCH) $(CFLAGS_EXTRA) 242LDFLAGS := 243 244LIBGCC := -lgcc 245 246ifeq ($(ARCH),x86) 247# Not needed on x86, probably not present for x32 248LIBGCC := 249endif 250 251ifneq ($(LLVM),) 252# Not needed for clang 253LIBGCC := 254endif 255 256# Modify CFLAGS based on LLVM= 257include $(srctree)/tools/scripts/Makefile.include 258 259REPORT ?= awk '/\[OK\][\r]*$$/{p++} /\[FAIL\][\r]*$$/{if (!f) printf("\n"); f++; print;} /\[SKIPPED\][\r]*$$/{s++} \ 260 /^Total number of errors:/{done++} \ 261 END{ printf("\n%3d test(s): %3d passed, %3d skipped, %3d failed => status: ", p+s+f, p, s, f); \ 262 if (f || !p || !done) printf("failure\n"); else if (s) printf("warning\n"); else printf("success\n");; \ 263 printf("\nSee all results in %s\n", ARGV[1]); }' 264 265help: 266 @echo "Supported targets under selftests/nolibc:" 267 @echo " all call the \"run\" target below" 268 @echo " help this help" 269 @echo " sysroot create the nolibc sysroot here (uses \$$ARCH)" 270 @echo " nolibc-test build the executable (uses \$$CC and \$$CROSS_COMPILE)" 271 @echo " libc-test build an executable using the compiler's default libc instead" 272 @echo " run-user runs the executable under QEMU (uses \$$XARCH, \$$TEST)" 273 @echo " initramfs.cpio prepare the initramfs archive with nolibc-test" 274 @echo " initramfs prepare the initramfs tree with nolibc-test" 275 @echo " defconfig create a fresh new default config (uses \$$XARCH)" 276 @echo " kernel (re)build the kernel (uses \$$XARCH)" 277 @echo " kernel-standalone (re)build the kernel with the initramfs (uses \$$XARCH)" 278 @echo " run runs the kernel in QEMU after building it (uses \$$XARCH, \$$TEST)" 279 @echo " rerun runs a previously prebuilt kernel in QEMU (uses \$$XARCH, \$$TEST)" 280 @echo " clean clean the sysroot, initramfs, build and output files" 281 @echo "" 282 @echo "The output file is \"run.out\". Test ranges may be passed using \$$TEST." 283 @echo "" 284 @echo "Currently using the following variables:" 285 @echo " ARCH = $(ARCH)" 286 @echo " XARCH = $(XARCH)" 287 @echo " CROSS_COMPILE = $(CROSS_COMPILE)" 288 @echo " CC = $(CC)" 289 @echo " OUTPUT = $(OUTPUT)" 290 @echo " TEST = $(TEST)" 291 @echo " QEMU_ARCH = $(if $(QEMU_ARCH),$(QEMU_ARCH),UNKNOWN_ARCH) [determined from \$$XARCH]" 292 @echo " IMAGE_NAME = $(if $(IMAGE_NAME),$(IMAGE_NAME),UNKNOWN_ARCH) [determined from \$$XARCH]" 293 @echo "" 294 295all: run 296 297sysroot: sysroot/$(ARCH)/include 298 299sysroot/$(ARCH)/include: 300 $(Q)rm -rf sysroot/$(ARCH) sysroot/sysroot 301 $(QUIET_MKDIR)mkdir -p sysroot 302 $(Q)$(MAKE) -C $(srctree) outputmakefile 303 $(Q)$(MAKE) -C $(srctree)/tools/include/nolibc ARCH=$(ARCH) OUTPUT=$(CURDIR)/sysroot/ headers_standalone headers_check 304 $(Q)mv sysroot/sysroot sysroot/$(ARCH) 305 306ifneq ($(NOLIBC_SYSROOT),0) 307nolibc-test: nolibc-test.c nolibc-test-linkage.c sysroot/$(ARCH)/include 308 $(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \ 309 -nostdlib -nostdinc -static -Isysroot/$(ARCH)/include nolibc-test.c nolibc-test-linkage.c $(LIBGCC) 310else 311nolibc-test: nolibc-test.c nolibc-test-linkage.c 312 $(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \ 313 -nostdlib -static -include $(srctree)/tools/include/nolibc/nolibc.h nolibc-test.c nolibc-test-linkage.c $(LIBGCC) 314endif 315 316libc-test: nolibc-test.c nolibc-test-linkage.c 317 $(QUIET_CC)$(HOSTCC) -o $@ nolibc-test.c nolibc-test-linkage.c 318 319# local libc-test 320run-libc-test: libc-test 321 $(Q)./libc-test > "$(CURDIR)/run.out" || : 322 $(Q)$(REPORT) $(CURDIR)/run.out 323 324# local nolibc-test 325run-nolibc-test: nolibc-test 326 $(Q)./nolibc-test > "$(CURDIR)/run.out" || : 327 $(Q)$(REPORT) $(CURDIR)/run.out 328 329# qemu user-land test 330run-user: nolibc-test 331 $(Q)qemu-$(QEMU_ARCH_USER) ./nolibc-test > "$(CURDIR)/run.out" || : 332 $(Q)$(REPORT) $(CURDIR)/run.out 333 334initramfs.cpio: kernel nolibc-test 335 $(QUIET_GEN)echo 'file /init nolibc-test 755 0 0' | $(objtree)/usr/gen_init_cpio - > initramfs.cpio 336 337initramfs: nolibc-test 338 $(QUIET_MKDIR)mkdir -p initramfs 339 $(call QUIET_INSTALL, initramfs/init) 340 $(Q)cp nolibc-test initramfs/init 341 342defconfig: 343 $(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) $(DEFCONFIG) 344 $(Q)if [ -n "$(EXTRACONFIG)" ]; then \ 345 $(srctree)/scripts/config --file $(objtree)/.config $(EXTRACONFIG); \ 346 $(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) olddefconfig < /dev/null; \ 347 fi 348 349kernel: 350 $(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) $(IMAGE_NAME) < /dev/null 351 352kernel-standalone: initramfs 353 $(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) $(IMAGE_NAME) CONFIG_INITRAMFS_SOURCE=$(CURDIR)/initramfs < /dev/null 354 355# run the tests after building the kernel 356run: kernel initramfs.cpio 357 $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -serial file:/dev/stdout $(QEMU_ARGS) > "$(CURDIR)/run.out" 358 $(Q)$(REPORT) $(CURDIR)/run.out 359 360# re-run the tests from an existing kernel 361rerun: 362 $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -serial file:/dev/stdout $(QEMU_ARGS) > "$(CURDIR)/run.out" 363 $(Q)$(REPORT) $(CURDIR)/run.out 364 365# report with existing test log 366report: 367 $(Q)$(REPORT) $(CURDIR)/run.out 368 369clean: 370 $(call QUIET_CLEAN, sysroot) 371 $(Q)rm -rf sysroot 372 $(call QUIET_CLEAN, nolibc-test) 373 $(Q)rm -f nolibc-test 374 $(call QUIET_CLEAN, libc-test) 375 $(Q)rm -f libc-test 376 $(call QUIET_CLEAN, initramfs.cpio) 377 $(Q)rm -rf initramfs.cpio 378 $(call QUIET_CLEAN, initramfs) 379 $(Q)rm -rf initramfs 380 $(call QUIET_CLEAN, run.out) 381 $(Q)rm -rf run.out 382 383.PHONY: sysroot/$(ARCH)/include 384