projects/linux·blob 542fed2e · refs

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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_parisc64 = parisc64
69ARCH := $(or $(ARCH_$(XARCH)),$(XARCH))
70
71# kernel image names by architecture
72IMAGE_i386 = arch/x86/boot/bzImage
73IMAGE_x86_64 = arch/x86/boot/bzImage
74IMAGE_x32 = arch/x86/boot/bzImage
75IMAGE_x86 = arch/x86/boot/bzImage
76IMAGE_arm64 = arch/arm64/boot/Image
77IMAGE_arm = arch/arm/boot/zImage
78IMAGE_armthumb = arch/arm/boot/zImage
79IMAGE_ppc64le = arch/powerpc/boot/zImage
80IMAGE_riscv32 = arch/riscv/boot/Image
81IMAGE_riscv64 = arch/riscv/boot/Image
82IMAGE_s390x = arch/s390/boot/bzImage
83IMAGE_loongarch = arch/loongarch/boot/vmlinuz.efi
84IMAGE_sparc32 = arch/sparc/boot/image
85IMAGE_sparc64 = arch/sparc/boot/image
86IMAGE_sh4 = arch/sh/boot/zImage
87IMAGE = $(objtree)/$(or $(IMAGE_$(XARCH)),vmlinux)
88IMAGE_NAME = $(notdir $(IMAGE))
89
90# default kernel configurations that appear to be usable
91DEFCONFIG_arm = multi_v7_defconfig
92DEFCONFIG_armthumb = multi_v7_defconfig
93DEFCONFIG_mips32le = malta_defconfig
94DEFCONFIG_mips32be = malta_defconfig generic/eb.config
95DEFCONFIG_mipsn32le = malta_defconfig generic/64r2.config
96DEFCONFIG_mipsn32be = malta_defconfig generic/64r6.config generic/eb.config
97DEFCONFIG_mips64le = malta_defconfig generic/64r6.config
98DEFCONFIG_mips64be = malta_defconfig generic/64r2.config generic/eb.config
99DEFCONFIG_ppc = pmac32_defconfig
100DEFCONFIG_ppc64 = powernv_be_defconfig
101DEFCONFIG_ppc64le = powernv_defconfig
102DEFCONFIG_riscv32 = rv32_defconfig
103DEFCONFIG_sparc32 = sparc32_defconfig
104DEFCONFIG_sparc64 = sparc64_defconfig
105DEFCONFIG_m68k = virt_defconfig
106DEFCONFIG_sh4 = rts7751r2dplus_defconfig
107DEFCONFIG_openrisc = virt_defconfig
108DEFCONFIG = $(or $(DEFCONFIG_$(XARCH)),defconfig)
109
110EXTRACONFIG_x32 = -e CONFIG_X86_X32_ABI
111EXTRACONFIG_arm = -e CONFIG_NAMESPACES
112EXTRACONFIG_armthumb = -e CONFIG_NAMESPACES
113EXTRACONFIG_sparc32 = -e CONFIG_TMPFS
114EXTRACONFIG_m68k = -e CONFIG_BLK_DEV_INITRD
115EXTRACONFIG_sh4 = -e CONFIG_BLK_DEV_INITRD -e CONFIG_CMDLINE_FROM_BOOTLOADER
116EXTRACONFIG_alpha = -e CONFIG_BLK_DEV_INITRD
117EXTRACONFIG_parisc64 = -d CONFIG_COMPAT
118EXTRACONFIG = $(EXTRACONFIG_$(XARCH))
119
120# optional tests to run (default = all)
121TEST =
122
123# QEMU_ARCH: arch names used by qemu
124QEMU_ARCH_x32 = x86_64
125QEMU_ARCH_x86 = x86_64
126QEMU_ARCH_arm64 = aarch64
127QEMU_ARCH_armthumb = arm
128QEMU_ARCH_mips32le = mipsel # works with malta_defconfig
129QEMU_ARCH_mips32be = mips
130QEMU_ARCH_mipsn32le = mips64el
131QEMU_ARCH_mipsn32be = mips64
132QEMU_ARCH_mips64le = mips64el
133QEMU_ARCH_mips64be = mips64
134QEMU_ARCH_ppc64le = ppc64
135QEMU_ARCH_loongarch = loongarch64
136QEMU_ARCH_sparc32 = sparc
137QEMU_ARCH_openrisc = or1k
138QEMU_ARCH_parisc32 = hppa
139QEMU_ARCH_parisc64 = hppa
140QEMU_ARCH = $(or $(QEMU_ARCH_$(XARCH)),$(XARCH))
141
142QEMU_ARCH_USER_ppc64le = ppc64le
143QEMU_ARCH_USER_mipsn32le = mipsn32el
144QEMU_ARCH_USER_mipsn32be = mipsn32
145QEMU_ARCH_USER = $(or $(QEMU_ARCH_USER_$(XARCH)),$(QEMU_ARCH))
146
147QEMU_BIOS_DIR = /usr/share/edk2/
148QEMU_BIOS_loongarch = $(QEMU_BIOS_DIR)/loongarch64/OVMF_CODE.fd
149
150ifneq ($(QEMU_BIOS_$(XARCH)),)
151QEMU_ARGS_BIOS = -bios $(QEMU_BIOS_$(XARCH))
152endif
153
154# QEMU_ARGS : some arch-specific args to pass to qemu
155QEMU_ARGS_i386 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
156QEMU_ARGS_x86_64 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
157QEMU_ARGS_x32 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
158QEMU_ARGS_x86 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
159QEMU_ARGS_arm64 = -M virt -cpu cortex-a53 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
160QEMU_ARGS_arm = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
161QEMU_ARGS_armthumb = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
162QEMU_ARGS_mips32le = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
163QEMU_ARGS_mips32be = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
164QEMU_ARGS_mipsn32le = -M malta -cpu 5KEc -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
165QEMU_ARGS_mipsn32be = -M malta -cpu I6400 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
166QEMU_ARGS_mips64le = -M malta -cpu I6400 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
167QEMU_ARGS_mips64be = -M malta -cpu 5KEc -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
168QEMU_ARGS_ppc = -M g3beige -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
169QEMU_ARGS_ppc64 = -M powernv -append "console=hvc0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
170QEMU_ARGS_ppc64le = -M powernv -append "console=hvc0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
171QEMU_ARGS_riscv32 = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
172QEMU_ARGS_riscv64 = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
173QEMU_ARGS_s390x = -M s390-ccw-virtio -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
174QEMU_ARGS_loongarch = -M virt -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
175QEMU_ARGS_sparc32 = -M SS-5 -m 256M -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
176QEMU_ARGS_sparc64 = -M sun4u -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
177QEMU_ARGS_m68k = -M virt -append "console=ttyGF0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
178QEMU_ARGS_sh4 = -M r2d -serial file:/dev/stdout -append "console=ttySC1,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
179QEMU_ARGS_openrisc = -M virt -m 512M -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
180QEMU_ARGS_parisc32 = -M B160L -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
181QEMU_ARGS_parisc64 = -M C3700 -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
182QEMU_ARGS_alpha = -M clipper -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
183QEMU_ARGS = -m 1G $(QEMU_ARGS_$(XARCH)) $(QEMU_ARGS_BIOS) $(QEMU_ARGS_EXTRA)
184
185# OUTPUT is only set when run from the main makefile, otherwise
186# it defaults to this nolibc directory.
187OUTPUT ?= $(CURDIR)/
188
189ifeq ($(V),1)
190Q=
191else
192Q=@
193endif
194
195CFLAGS_i386 = $(call cc-option,-m32)
196CFLAGS_x32 = -mx32
197CFLAGS_arm = -marm
198CFLAGS_armthumb = -mthumb -march=armv6t2
199CFLAGS_parisc32 = -mfast-indirect-calls
200CFLAGS_parisc64 = -Wl,--no-dynamic-linker -Wl,--entry=_start -O2
201CFLAGS_ppc = -m32 -mbig-endian -mno-vsx $(call cc-option,-mmultiple)
202CFLAGS_ppc64 = -m64 -mbig-endian -mno-vsx $(call cc-option,-mmultiple)
203CFLAGS_ppc64le = -m64 -mlittle-endian -mno-vsx $(call cc-option,-mabi=elfv2)
204CFLAGS_s390x = -m64
205CFLAGS_mips32le = -EL -mabi=32 -fPIC
206CFLAGS_mips32be = -EB -mabi=32
207CFLAGS_mipsn32le = -EL -mabi=n32 -fPIC -march=mips64r2
208CFLAGS_mipsn32be = -EB -mabi=n32 -march=mips64r6
209CFLAGS_mips64le = -EL -mabi=64 -march=mips64r6
210CFLAGS_mips64be = -EB -mabi=64 -march=mips64r2
211CFLAGS_loongarch = $(if $(LLVM),-fuse-ld=lld)
212CFLAGS_sparc32 = $(call cc-option,-m32) -mcpu=v8
213CFLAGS_sh4 = -ml -m4
214# github.com/llvm/llvm-project/issues/216765
215CFLAGS_hexagon = -fno-sanitize=undefined
216ifeq ($(origin XARCH),command line)
217CFLAGS_XARCH = $(CFLAGS_$(XARCH))
218endif
219
220LDLIBS_ppc = $(if $(LLVM),,-lgcc)
221LDLIBS_openrisc = $(if $(LLVM),,-lgcc)
222LDLIBS = $(LDLIBS_$(XARCH))
223
224include Makefile.include
225
226CFLAGS ?= $(CFLAGS_NOLIBC_TEST) $(CFLAGS_XARCH) $(CFLAGS_EXTRA)
227LDFLAGS :=
228
229# Modify CFLAGS based on LLVM=
230include $(srctree)/tools/scripts/Makefile.include
231
232ifeq ($(ARCH),hexagon)
233# tools/scripts/Makefile.include requires CROSS_COMPILE which does not exist for hexagon
234CFLAGS += --target=hexagon-linux-musl
235CLANG_CROSS_FLAGS += --target=hexagon-linux-musl
236endif
237
238REPORT ?= awk '/\[OK\][\r]*$$/{p++} /\[FAIL\][\r]*$$/{if (!f) printf("\n"); f++; print;} /\[SKIPPED\][\r]*$$/{s++} \
239 /^Total number of errors:/{done++} \
240 END{ printf("\n%3d test(s): %3d passed, %3d skipped, %3d failed => status: ", p+s+f, p, s, f); \
241 if (f || !p || !done) printf("failure\n"); else printf("success\n");; \
242 printf("\nSee all results in %s\n", ARGV[1]); }'
243
244# Execute the toplevel kernel Makefile
245KBUILD_MAKE = $(MAKE) -C $(srctree) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) LLVM=
246
247help:
248 @echo "Supported targets under selftests/nolibc:"
249 @echo " all call the \"run\" target below"
250 @echo " help this help"
251 @echo " sysroot create the nolibc sysroot here (uses \$$ARCH)"
252 @echo " nolibc-test build the executable (uses \$$CC or \$$CROSS_COMPILE)"
253 @echo " libc-test build an executable using the compiler's default libc instead"
254 @echo " run-user runs the executable under QEMU (uses \$$XARCH, \$$TEST)"
255 @echo " initramfs.cpio prepare the initramfs archive with nolibc-test"
256 @echo " initramfs prepare the initramfs tree with nolibc-test"
257 @echo " defconfig create a fresh new default config (uses \$$XARCH)"
258 @echo " kernel (re)build the kernel (uses \$$XARCH, \$$CROSS_COMPILE)"
259 @echo " kernel-standalone (re)build the kernel with the initramfs (uses \$$XARCH, \$$CROSS_COMPILE)"
260 @echo " run runs the kernel in QEMU after building it (uses \$$XARCH, \$$TEST)"
261 @echo " rerun runs a previously prebuilt kernel in QEMU (uses \$$XARCH, \$$TEST)"
262 @echo " clean clean the sysroot, initramfs, build and output files"
263 @echo ""
264 @echo "The output file is \"run.out\". Test ranges may be passed using \$$TEST."
265 @echo ""
266 @echo "Currently using the following variables:"
267 @echo " ARCH = $(ARCH)"
268 @echo " XARCH = $(XARCH)"
269 @echo " CROSS_COMPILE = $(CROSS_COMPILE)"
270 @echo " CC = $(CC)"
271 @echo " OUTPUT = $(OUTPUT)"
272 @echo " TEST = $(TEST)"
273 @echo " QEMU_ARCH = $(if $(QEMU_ARCH),$(QEMU_ARCH),UNKNOWN_ARCH) [determined from \$$XARCH]"
274 @echo " IMAGE_NAME = $(if $(IMAGE_NAME),$(IMAGE_NAME),UNKNOWN_ARCH) [determined from \$$XARCH]"
275 @echo ""
276
277all: run
278
279sysroot: sysroot/$(ARCH)/include
280
281sysroot/$(ARCH)/include:
282 $(Q)rm -rf sysroot/$(ARCH) sysroot/sysroot
283 $(QUIET_MKDIR)mkdir -p sysroot
284 $(Q)$(MAKE) -C $(srctree) outputmakefile
285 $(Q)$(MAKE) -C $(srctree)/tools/include/nolibc ARCH=$(ARCH) OUTPUT=$(CURDIR)/sysroot/ headers_standalone headers_check
286 $(Q)mv sysroot/sysroot sysroot/$(ARCH)
287
288nolibc-test: $(NOLIBC_TEST_SOURCES) sysroot/$(ARCH)/include
289 $(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \
290 -nostdlib -nostdinc -static -Isysroot/$(ARCH)/include $(NOLIBC_TEST_SOURCES) $(LDLIBS)
291
292libc-test: $(NOLIBC_TEST_SOURCES)
293 $(QUIET_CC)$(HOSTCC) -o $@ $(NOLIBC_TEST_SOURCES)
294
295# local libc-test
296run-libc-test: libc-test
297 $(Q)./libc-test > "$(CURDIR)/run.out" || :
298 $(Q)$(REPORT) $(CURDIR)/run.out
299
300# local nolibc-test
301run-nolibc-test: nolibc-test
302 $(Q)./nolibc-test > "$(CURDIR)/run.out" || :
303 $(Q)$(REPORT) $(CURDIR)/run.out
304
305# qemu user-land test
306run-user: nolibc-test
307 $(Q)qemu-$(QEMU_ARCH_USER) ./nolibc-test > "$(CURDIR)/run.out" || :
308 $(Q)$(REPORT) $(CURDIR)/run.out
309
310initramfs.cpio: kernel nolibc-test
311 $(QUIET_GEN)echo 'file /init nolibc-test 755 0 0' | $(objtree)/usr/gen_init_cpio - > initramfs.cpio
312
313initramfs: nolibc-test
314 $(QUIET_MKDIR)mkdir -p initramfs
315 $(call QUIET_INSTALL, initramfs/init)
316 $(Q)cp nolibc-test initramfs/init
317
318defconfig:
319 $(Q)$(KBUILD_MAKE) $(DEFCONFIG)
320 $(Q)if [ -n "$(EXTRACONFIG)" ]; then \
321 $(srctree)/scripts/config --file $(objtree)/.config $(EXTRACONFIG); \
322 $(KBUILD_MAKE) olddefconfig < /dev/null; \
323 fi
324
325kernel:
326 $(Q)$(KBUILD_MAKE) $(IMAGE_NAME) < /dev/null
327
328kernel-standalone: initramfs
329 $(Q)$(KBUILD_MAKE) $(IMAGE_NAME) CONFIG_INITRAMFS_SOURCE=$(CURDIR)/initramfs < /dev/null
330
331# run the tests after building the kernel
332run: kernel initramfs.cpio
333 $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -serial file:/dev/stdout $(QEMU_ARGS) > "$(CURDIR)/run.out"
334 $(Q)$(REPORT) $(CURDIR)/run.out
335
336# re-run the tests from an existing kernel
337rerun:
338 $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -serial file:/dev/stdout $(QEMU_ARGS) > "$(CURDIR)/run.out"
339 $(Q)$(REPORT) $(CURDIR)/run.out
340
341# report with existing test log
342report:
343 $(Q)$(REPORT) $(CURDIR)/run.out
344
345clean:
346 $(call QUIET_CLEAN, sysroot)
347 $(Q)rm -rf sysroot
348 $(call QUIET_CLEAN, nolibc-test)
349 $(Q)rm -f nolibc-test
350 $(call QUIET_CLEAN, libc-test)
351 $(Q)rm -f libc-test
352 $(call QUIET_CLEAN, initramfs.cpio)
353 $(Q)rm -rf initramfs.cpio
354 $(call QUIET_CLEAN, initramfs)
355 $(Q)rm -rf initramfs
356 $(call QUIET_CLEAN, run.out)
357 $(Q)rm -rf run.out
358
359.PHONY: sysroot/$(ARCH)/include