tools/testing/selftests/nolibc/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 # Makefile for nolibc tests
   3 include ../../../scripts/Makefile.include
   4 # We need this for the "cc-option" macro.
   5 include ../../../build/Build.include
   6
   7 # we're in ".../tools/testing/selftests/nolibc"
   8 ifeq ($(srctree),)
   9 srctree := $(patsubst %/tools/testing/selftests/,%,$(dir $(CURDIR)))
  10 endif
  11
  12 ifeq ($(ARCH),)
  13 include $(srctree)/scripts/subarch.include
  14 ARCH = $(SUBARCH)
  15 endif
  16
  17 # kernel image names by architecture
  18 IMAGE_i386       = arch/x86/boot/bzImage
  19 IMAGE_x86_64     = arch/x86/boot/bzImage
  20 IMAGE_x86        = arch/x86/boot/bzImage
  21 IMAGE_arm64      = arch/arm64/boot/Image
  22 IMAGE_arm        = arch/arm/boot/zImage
  23 IMAGE_mips       = vmlinuz
  24 IMAGE_riscv      = arch/riscv/boot/Image
  25 IMAGE_s390       = arch/s390/boot/bzImage
  26 IMAGE_loongarch  = arch/loongarch/boot/vmlinuz.efi
  27 IMAGE            = $(IMAGE_$(ARCH))
  28 IMAGE_NAME       = $(notdir $(IMAGE))
  29
  30 # default kernel configurations that appear to be usable
  31 DEFCONFIG_i386       = defconfig
  32 DEFCONFIG_x86_64     = defconfig
  33 DEFCONFIG_x86        = defconfig
  34 DEFCONFIG_arm64      = defconfig
  35 DEFCONFIG_arm        = multi_v7_defconfig
  36 DEFCONFIG_mips       = malta_defconfig
  37 DEFCONFIG_riscv      = defconfig
  38 DEFCONFIG_s390       = defconfig
  39 DEFCONFIG_loongarch  = defconfig
  40 DEFCONFIG            = $(DEFCONFIG_$(ARCH))
  41
  42 # optional tests to run (default = all)
  43 TEST =
  44
  45 # QEMU_ARCH: arch names used by qemu
  46 QEMU_ARCH_i386       = i386
  47 QEMU_ARCH_x86_64     = x86_64
  48 QEMU_ARCH_x86        = x86_64
  49 QEMU_ARCH_arm64      = aarch64
  50 QEMU_ARCH_arm        = arm
  51 QEMU_ARCH_mips       = mipsel  # works with malta_defconfig
  52 QEMU_ARCH_riscv      = riscv64
  53 QEMU_ARCH_s390       = s390x
  54 QEMU_ARCH_loongarch  = loongarch64
  55 QEMU_ARCH            = $(QEMU_ARCH_$(ARCH))
  56
  57 # QEMU_ARGS : some arch-specific args to pass to qemu
  58 QEMU_ARGS_i386       = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
  59 QEMU_ARGS_x86_64     = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
  60 QEMU_ARGS_x86        = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
  61 QEMU_ARGS_arm64      = -M virt -cpu cortex-a53 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
  62 QEMU_ARGS_arm        = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
  63 QEMU_ARGS_mips       = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
  64 QEMU_ARGS_riscv      = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
  65 QEMU_ARGS_s390       = -M s390-ccw-virtio -m 1G -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
  66 QEMU_ARGS_loongarch  = -M virt -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
  67 QEMU_ARGS            = $(QEMU_ARGS_$(ARCH)) $(QEMU_ARGS_EXTRA)
  68
  69 # OUTPUT is only set when run from the main makefile, otherwise
  70 # it defaults to this nolibc directory.
  71 OUTPUT ?= $(CURDIR)/
  72
  73 ifeq ($(V),1)
  74 Q=
  75 else
  76 Q=@
  77 endif
  78
  79 CFLAGS_s390 = -m64
  80 CFLAGS_mips = -EL
  81 CFLAGS_STACKPROTECTOR ?= $(call cc-option,-mstack-protector-guard=global $(call cc-option,-fstack-protector-all))
  82 CFLAGS  ?= -Os -fno-ident -fno-asynchronous-unwind-tables -std=c89 \
  83                 $(call cc-option,-fno-stack-protector) \
  84                 $(CFLAGS_$(ARCH)) $(CFLAGS_STACKPROTECTOR)
  85 LDFLAGS :=
  86
  87 REPORT  ?= awk '/\[OK\][\r]*$$/{p++} /\[FAIL\][\r]*$$/{if (!f) printf("\n"); f++; print;} /\[SKIPPED\][\r]*$$/{s++} \
  88                 END{ printf("\n%3d test(s): %3d passed, %3d skipped, %3d failed => status: ", p+s+f, p, s, f); \
  89                 if (f) printf("failure\n"); else if (s) printf("warning\n"); else printf("success\n");; \
  90                 printf("\nSee all results in %s\n", ARGV[1]); }'
  91
  92 help:
  93         @echo "Supported targets under selftests/nolibc:"
  94         @echo "  all          call the \"run\" target below"
  95         @echo "  help         this help"
  96         @echo "  sysroot      create the nolibc sysroot here (uses \$$ARCH)"
  97         @echo "  nolibc-test  build the executable (uses \$$CC and \$$CROSS_COMPILE)"
  98         @echo "  libc-test    build an executable using the compiler's default libc instead"
  99         @echo "  run-user     runs the executable under QEMU (uses \$$ARCH, \$$TEST)"
 100         @echo "  initramfs    prepare the initramfs with nolibc-test"
 101         @echo "  defconfig    create a fresh new default config (uses \$$ARCH)"
 102         @echo "  kernel       (re)build the kernel with the initramfs (uses \$$ARCH)"
 103         @echo "  run          runs the kernel in QEMU after building it (uses \$$ARCH, \$$TEST)"
 104         @echo "  rerun        runs a previously prebuilt kernel in QEMU (uses \$$ARCH, \$$TEST)"
 105         @echo "  clean        clean the sysroot, initramfs, build and output files"
 106         @echo ""
 107         @echo "The output file is \"run.out\". Test ranges may be passed using \$$TEST."
 108         @echo ""
 109         @echo "Currently using the following variables:"
 110         @echo "  ARCH          = $(ARCH)"
 111         @echo "  CROSS_COMPILE = $(CROSS_COMPILE)"
 112         @echo "  CC            = $(CC)"
 113         @echo "  OUTPUT        = $(OUTPUT)"
 114         @echo "  TEST          = $(TEST)"
 115         @echo "  QEMU_ARCH     = $(if $(QEMU_ARCH),$(QEMU_ARCH),UNKNOWN_ARCH) [determined from \$$ARCH]"
 116         @echo "  IMAGE_NAME    = $(if $(IMAGE_NAME),$(IMAGE_NAME),UNKNOWN_ARCH) [determined from \$$ARCH]"
 117         @echo ""
 118
 119 all: run
 120
 121 sysroot: sysroot/$(ARCH)/include
 122
 123 sysroot/$(ARCH)/include:
 124         $(Q)rm -rf sysroot/$(ARCH) sysroot/sysroot
 125         $(QUIET_MKDIR)mkdir -p sysroot
 126         $(Q)$(MAKE) -C ../../../include/nolibc ARCH=$(ARCH) OUTPUT=$(CURDIR)/sysroot/ headers_standalone
 127         $(Q)mv sysroot/sysroot sysroot/$(ARCH)
 128
 129 ifneq ($(NOLIBC_SYSROOT),0)
 130 nolibc-test: nolibc-test.c sysroot/$(ARCH)/include
 131         $(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \
 132           -nostdlib -static -Isysroot/$(ARCH)/include $< -lgcc
 133 else
 134 nolibc-test: nolibc-test.c
 135         $(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \
 136           -nostdlib -static -include ../../../include/nolibc/nolibc.h $< -lgcc
 137 endif
 138
 139 libc-test: nolibc-test.c
 140         $(QUIET_CC)$(CC) -o $@ $<
 141
 142 # local libc-test
 143 run-libc-test: libc-test
 144         $(Q)./libc-test > "$(CURDIR)/run.out" || :
 145         $(Q)$(REPORT) $(CURDIR)/run.out
 146
 147 # local nolibc-test
 148 run-nolibc-test: nolibc-test
 149         $(Q)./nolibc-test > "$(CURDIR)/run.out" || :
 150         $(Q)$(REPORT) $(CURDIR)/run.out
 151
 152 # qemu user-land test
 153 run-user: nolibc-test
 154         $(Q)qemu-$(QEMU_ARCH) ./nolibc-test > "$(CURDIR)/run.out" || :
 155         $(Q)$(REPORT) $(CURDIR)/run.out
 156
 157 initramfs: nolibc-test
 158         $(QUIET_MKDIR)mkdir -p initramfs
 159         $(call QUIET_INSTALL, initramfs/init)
 160         $(Q)cp nolibc-test initramfs/init
 161
 162 defconfig:
 163         $(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) mrproper $(DEFCONFIG) prepare
 164
 165 kernel: initramfs
 166         $(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) $(IMAGE_NAME) CONFIG_INITRAMFS_SOURCE=$(CURDIR)/initramfs
 167
 168 # run the tests after building the kernel
 169 run: kernel
 170         $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(srctree)/$(IMAGE)" -serial stdio $(QEMU_ARGS) > "$(CURDIR)/run.out"
 171         $(Q)$(REPORT) $(CURDIR)/run.out
 172
 173 # re-run the tests from an existing kernel
 174 rerun:
 175         $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(srctree)/$(IMAGE)" -serial stdio $(QEMU_ARGS) > "$(CURDIR)/run.out"
 176         $(Q)$(REPORT) $(CURDIR)/run.out
 177
 178 clean:
 179         $(call QUIET_CLEAN, sysroot)
 180         $(Q)rm -rf sysroot
 181         $(call QUIET_CLEAN, nolibc-test)
 182         $(Q)rm -f nolibc-test
 183         $(call QUIET_CLEAN, libc-test)
 184         $(Q)rm -f libc-test
 185         $(call QUIET_CLEAN, initramfs)
 186         $(Q)rm -rf initramfs
 187         $(call QUIET_CLEAN, run.out)
 188         $(Q)rm -rf run.out
 189
 190 .PHONY: sysroot/$(ARCH)/include