tools/testing/selftests/mm/Makefile - linux - Git at Google

 # SPDX-License-Identifier: GPL-2.0
 # Makefile for mm selftests

 LOCAL_HDRS += $(selfdir)/mm/local_config.h $(top_srcdir)/mm/gup_test.h
 LOCAL_HDRS += $(selfdir)/mm/mseal_helpers.h

 include local_config.mk

 ifeq ($(ARCH),)

 ifeq ($(CROSS_COMPILE),)
 uname_M := $(shell uname -m 2>/dev/null || echo not)
 else
 uname_M := $(shell echo $(CROSS_COMPILE) | grep -o '^[a-z0-9]\+')
 endif
 ARCH ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/' -e 's/ppc64.*/powerpc/')
 endif

 # Without this, failed build products remain, with up-to-date timestamps,
 # thus tricking Make (and you!) into believing that All Is Well, in subsequent
 # make invocations:
 .DELETE_ON_ERROR:

 # Avoid accidental wrong builds, due to built-in rules working just a little
 # bit too well--but not quite as well as required for our situation here.
 #
 # In other words, "make $SOME_TEST" is supposed to fail to build at all,
 # because this Makefile only supports either "make" (all), or "make /full/path".
 # However,  the built-in rules, if not suppressed, will pick up CFLAGS and the
 # initial LDLIBS (but not the target-specific LDLIBS, because those are only
 # set for the full path target!). This causes it to get pretty far into building
 # things despite using incorrect values such as an *occasionally* incomplete
 # LDLIBS.
 MAKEFLAGS += --no-builtin-rules

 CFLAGS = -Wall -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES)
 LDLIBS = -lrt -lpthread -lm

 TEST_GEN_FILES = cow
 TEST_GEN_FILES += compaction_test
 TEST_GEN_FILES += gup_longterm
 TEST_GEN_FILES += gup_test
 TEST_GEN_FILES += hmm-tests
 TEST_GEN_FILES += hugetlb-madvise
 TEST_GEN_FILES += hugetlb-read-hwpoison
 TEST_GEN_FILES += hugetlb-soft-offline
 TEST_GEN_FILES += hugepage-mmap
 TEST_GEN_FILES += hugepage-mremap
 TEST_GEN_FILES += hugepage-shm
 TEST_GEN_FILES += hugepage-vmemmap
 TEST_GEN_FILES += khugepaged
 TEST_GEN_FILES += madv_populate
 TEST_GEN_FILES += map_fixed_noreplace
 TEST_GEN_FILES += map_hugetlb
 TEST_GEN_FILES += map_populate
 ifneq (,$(filter $(ARCH),arm64 riscv riscv64 x86 x86_64))
 TEST_GEN_FILES += memfd_secret
 endif
 TEST_GEN_FILES += migration
 TEST_GEN_FILES += mkdirty
 TEST_GEN_FILES += mlock-random-test
 TEST_GEN_FILES += mlock2-tests
 TEST_GEN_FILES += mrelease_test
 TEST_GEN_FILES += mremap_dontunmap
 TEST_GEN_FILES += mremap_test
 TEST_GEN_FILES += mseal_test
 TEST_GEN_FILES += seal_elf
 TEST_GEN_FILES += on-fault-limit
 TEST_GEN_FILES += pagemap_ioctl
 TEST_GEN_FILES += thuge-gen
 TEST_GEN_FILES += transhuge-stress
 TEST_GEN_FILES += uffd-stress
 TEST_GEN_FILES += uffd-unit-tests
 TEST_GEN_FILES += split_huge_page_test
 TEST_GEN_FILES += ksm_tests
 TEST_GEN_FILES += ksm_functional_tests
 TEST_GEN_FILES += mdwe_test
 TEST_GEN_FILES += hugetlb_fault_after_madv
 TEST_GEN_FILES += hugetlb_madv_vs_map
 TEST_GEN_FILES += hugetlb_dio
 TEST_GEN_FILES += droppable

 ifneq ($(ARCH),arm64)
 TEST_GEN_FILES += soft-dirty
 endif

 ifeq ($(ARCH),x86_64)
 CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_32bit_program.c -m32)
 CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_64bit_program.c)
 CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_program.c -no-pie)

 VMTARGETS := protection_keys
 VMTARGETS += pkey_sighandler_tests
 BINARIES_32 := $(VMTARGETS:%=%_32)
 BINARIES_64 := $(VMTARGETS:%=%_64)

 ifeq ($(CAN_BUILD_WITH_NOPIE),1)
 CFLAGS += -no-pie
 endif

 ifeq ($(CAN_BUILD_I386),1)
 TEST_GEN_FILES += $(BINARIES_32)
 endif

 ifeq ($(CAN_BUILD_X86_64),1)
 TEST_GEN_FILES += $(BINARIES_64)
 endif
 else

 ifneq (,$(filter $(ARCH),arm64 powerpc))
 TEST_GEN_FILES += protection_keys
 endif

 endif

 ifneq (,$(filter $(ARCH),arm64 mips64 parisc64 powerpc riscv64 s390x sparc64 x86_64 s390))
 TEST_GEN_FILES += va_high_addr_switch
 TEST_GEN_FILES += virtual_address_range
 TEST_GEN_FILES += write_to_hugetlbfs
 endif

 TEST_PROGS := run_vmtests.sh

 TEST_FILES := test_vmalloc.sh
 TEST_FILES += test_hmm.sh
 TEST_FILES += va_high_addr_switch.sh
 TEST_FILES += charge_reserved_hugetlb.sh
 TEST_FILES += hugetlb_reparenting_test.sh

 # required by charge_reserved_hugetlb.sh
 TEST_FILES += write_hugetlb_memory.sh

 include ../lib.mk

 $(TEST_GEN_PROGS): vm_util.c thp_settings.c
 $(TEST_GEN_FILES): vm_util.c thp_settings.c

 $(OUTPUT)/uffd-stress: uffd-common.c
 $(OUTPUT)/uffd-unit-tests: uffd-common.c

 ifeq ($(ARCH),x86_64)
 BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
 BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))

 define gen-target-rule-32
 $(1) $(1)_32: $(OUTPUT)/$(1)_32
 .PHONY: $(1) $(1)_32
 endef

 define gen-target-rule-64
 $(1) $(1)_64: $(OUTPUT)/$(1)_64
 .PHONY: $(1) $(1)_64
 endef

 ifeq ($(CAN_BUILD_I386),1)
 $(BINARIES_32): CFLAGS += -m32 -mxsave
 $(BINARIES_32): LDLIBS += -lrt -ldl -lm
 $(BINARIES_32): $(OUTPUT)/%_32: %.c
 	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
 $(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-32,$(t))))
 endif

 ifeq ($(CAN_BUILD_X86_64),1)
 $(BINARIES_64): CFLAGS += -m64 -mxsave
 $(BINARIES_64): LDLIBS += -lrt -ldl
 $(BINARIES_64): $(OUTPUT)/%_64: %.c
 	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
 $(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-64,$(t))))
 endif

 # x86_64 users should be encouraged to install 32-bit libraries
 ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
 all: warn_32bit_failure

 warn_32bit_failure:
 	@echo "Warning: you seem to have a broken 32-bit build" 2>&1;		\
 	echo  "environment. This will reduce test coverage of 64-bit" 2>&1;	\
 	echo  "kernels. If you are using a Debian-like distribution," 2>&1;	\
 	echo  "try:"; 2>&1;							\
 	echo  "";								\
 	echo  "  apt-get install gcc-multilib libc6-i386 libc6-dev-i386";	\
 	echo  "";								\
 	echo  "If you are using a Fedora-like distribution, try:";		\
 	echo  "";								\
 	echo  "  yum install glibc-devel.*i686";				\
 	exit 0;
 endif
 endif

 # IOURING_EXTRA_LIBS may get set in local_config.mk, or it may be left empty.
 $(OUTPUT)/cow: LDLIBS += $(IOURING_EXTRA_LIBS)

 $(OUTPUT)/gup_longterm: LDLIBS += $(IOURING_EXTRA_LIBS)

 $(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap

 $(OUTPUT)/ksm_tests: LDLIBS += -lnuma

 $(OUTPUT)/migration: LDLIBS += -lnuma

 local_config.mk local_config.h: check_config.sh
 	/bin/sh ./check_config.sh $(CC)

 EXTRA_CLEAN += local_config.mk local_config.h

 ifeq ($(IOURING_EXTRA_LIBS),)
 all: warn_missing_liburing

 warn_missing_liburing:
 	@echo ; \
 	echo "Warning: missing liburing support. Some tests will be skipped." ; \
 	echo
 endif
	# SPDX-License-Identifier: GPL-2.0
	# Makefile for mm selftests

	LOCAL_HDRS += $(selfdir)/mm/local_config.h $(top_srcdir)/mm/gup_test.h
	LOCAL_HDRS += $(selfdir)/mm/mseal_helpers.h

	include local_config.mk

	ifeq ($(ARCH),)

	ifeq ($(CROSS_COMPILE),)
	uname_M := $(shell uname -m 2>/dev/null \|\| echo not)
	else
	uname_M := $(shell echo $(CROSS_COMPILE) \| grep -o '^[a-z0-9]\+')
	endif
	ARCH ?= $(shell echo $(uname_M) \| sed -e 's/aarch64./arm64/' -e 's/ppc64./powerpc/')
	endif

	# Without this, failed build products remain, with up-to-date timestamps,
	# thus tricking Make (and you!) into believing that All Is Well, in subsequent
	# make invocations:
	.DELETE_ON_ERROR:

	# Avoid accidental wrong builds, due to built-in rules working just a little
	# bit too well--but not quite as well as required for our situation here.
	#
	# In other words, "make $SOME_TEST" is supposed to fail to build at all,
	# because this Makefile only supports either "make" (all), or "make /full/path".
	# However, the built-in rules, if not suppressed, will pick up CFLAGS and the
	# initial LDLIBS (but not the target-specific LDLIBS, because those are only
	# set for the full path target!). This causes it to get pretty far into building
	# things despite using incorrect values such as an occasionally incomplete
	# LDLIBS.
	MAKEFLAGS += --no-builtin-rules

	CFLAGS = -Wall -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES)
	LDLIBS = -lrt -lpthread -lm

	TEST_GEN_FILES = cow
	TEST_GEN_FILES += compaction_test
	TEST_GEN_FILES += gup_longterm
	TEST_GEN_FILES += gup_test
	TEST_GEN_FILES += hmm-tests
	TEST_GEN_FILES += hugetlb-madvise
	TEST_GEN_FILES += hugetlb-read-hwpoison
	TEST_GEN_FILES += hugetlb-soft-offline
	TEST_GEN_FILES += hugepage-mmap
	TEST_GEN_FILES += hugepage-mremap
	TEST_GEN_FILES += hugepage-shm
	TEST_GEN_FILES += hugepage-vmemmap
	TEST_GEN_FILES += khugepaged
	TEST_GEN_FILES += madv_populate
	TEST_GEN_FILES += map_fixed_noreplace
	TEST_GEN_FILES += map_hugetlb
	TEST_GEN_FILES += map_populate
	ifneq (,$(filter $(ARCH),arm64 riscv riscv64 x86 x86_64))
	TEST_GEN_FILES += memfd_secret
	endif
	TEST_GEN_FILES += migration
	TEST_GEN_FILES += mkdirty
	TEST_GEN_FILES += mlock-random-test
	TEST_GEN_FILES += mlock2-tests
	TEST_GEN_FILES += mrelease_test
	TEST_GEN_FILES += mremap_dontunmap
	TEST_GEN_FILES += mremap_test
	TEST_GEN_FILES += mseal_test
	TEST_GEN_FILES += seal_elf
	TEST_GEN_FILES += on-fault-limit
	TEST_GEN_FILES += pagemap_ioctl
	TEST_GEN_FILES += thuge-gen
	TEST_GEN_FILES += transhuge-stress
	TEST_GEN_FILES += uffd-stress
	TEST_GEN_FILES += uffd-unit-tests
	TEST_GEN_FILES += split_huge_page_test
	TEST_GEN_FILES += ksm_tests
	TEST_GEN_FILES += ksm_functional_tests
	TEST_GEN_FILES += mdwe_test
	TEST_GEN_FILES += hugetlb_fault_after_madv
	TEST_GEN_FILES += hugetlb_madv_vs_map
	TEST_GEN_FILES += hugetlb_dio
	TEST_GEN_FILES += droppable

	ifneq ($(ARCH),arm64)
	TEST_GEN_FILES += soft-dirty
	endif

	ifeq ($(ARCH),x86_64)
	CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_32bit_program.c -m32)
	CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_64bit_program.c)
	CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_program.c -no-pie)

	VMTARGETS := protection_keys
	VMTARGETS += pkey_sighandler_tests
	BINARIES_32 := $(VMTARGETS:%=%_32)
	BINARIES_64 := $(VMTARGETS:%=%_64)

	ifeq ($(CAN_BUILD_WITH_NOPIE),1)
	CFLAGS += -no-pie
	endif

	ifeq ($(CAN_BUILD_I386),1)
	TEST_GEN_FILES += $(BINARIES_32)
	endif

	ifeq ($(CAN_BUILD_X86_64),1)
	TEST_GEN_FILES += $(BINARIES_64)
	endif
	else

	ifneq (,$(filter $(ARCH),arm64 powerpc))
	TEST_GEN_FILES += protection_keys
	endif

	endif

	ifneq (,$(filter $(ARCH),arm64 mips64 parisc64 powerpc riscv64 s390x sparc64 x86_64 s390))
	TEST_GEN_FILES += va_high_addr_switch
	TEST_GEN_FILES += virtual_address_range
	TEST_GEN_FILES += write_to_hugetlbfs
	endif

	TEST_PROGS := run_vmtests.sh

	TEST_FILES := test_vmalloc.sh
	TEST_FILES += test_hmm.sh
	TEST_FILES += va_high_addr_switch.sh
	TEST_FILES += charge_reserved_hugetlb.sh
	TEST_FILES += hugetlb_reparenting_test.sh

	# required by charge_reserved_hugetlb.sh
	TEST_FILES += write_hugetlb_memory.sh

	include ../lib.mk

	$(TEST_GEN_PROGS): vm_util.c thp_settings.c
	$(TEST_GEN_FILES): vm_util.c thp_settings.c

	$(OUTPUT)/uffd-stress: uffd-common.c
	$(OUTPUT)/uffd-unit-tests: uffd-common.c

	ifeq ($(ARCH),x86_64)
	BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
	BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))

	define gen-target-rule-32
	$(1) $(1)_32: $(OUTPUT)/$(1)_32
	.PHONY: $(1) $(1)_32
	endef

	define gen-target-rule-64
	$(1) $(1)_64: $(OUTPUT)/$(1)_64
	.PHONY: $(1) $(1)_64
	endef

	ifeq ($(CAN_BUILD_I386),1)
	$(BINARIES_32): CFLAGS += -m32 -mxsave
	$(BINARIES_32): LDLIBS += -lrt -ldl -lm
	$(BINARIES_32): $(OUTPUT)/%_32: %.c
	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
	$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-32,$(t))))
	endif

	ifeq ($(CAN_BUILD_X86_64),1)
	$(BINARIES_64): CFLAGS += -m64 -mxsave
	$(BINARIES_64): LDLIBS += -lrt -ldl
	$(BINARIES_64): $(OUTPUT)/%_64: %.c
	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
	$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-64,$(t))))
	endif

	# x86_64 users should be encouraged to install 32-bit libraries
	ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
	all: warn_32bit_failure

	warn_32bit_failure:
	@echo "Warning: you seem to have a broken 32-bit build" 2>&1; \
	echo "environment. This will reduce test coverage of 64-bit" 2>&1; \
	echo "kernels. If you are using a Debian-like distribution," 2>&1; \
	echo "try:"; 2>&1; \
	echo ""; \
	echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
	echo ""; \
	echo "If you are using a Fedora-like distribution, try:"; \
	echo ""; \
	echo " yum install glibc-devel.*i686"; \
	exit 0;
	endif
	endif

	# IOURING_EXTRA_LIBS may get set in local_config.mk, or it may be left empty.
	$(OUTPUT)/cow: LDLIBS += $(IOURING_EXTRA_LIBS)

	$(OUTPUT)/gup_longterm: LDLIBS += $(IOURING_EXTRA_LIBS)

	$(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap

	$(OUTPUT)/ksm_tests: LDLIBS += -lnuma

	$(OUTPUT)/migration: LDLIBS += -lnuma

	local_config.mk local_config.h: check_config.sh
	/bin/sh ./check_config.sh $(CC)

	EXTRA_CLEAN += local_config.mk local_config.h

	ifeq ($(IOURING_EXTRA_LIBS),)
	all: warn_missing_liburing

	warn_missing_liburing:
	@echo ; \
	echo "Warning: missing liburing support. Some tests will be skipped." ; \
	echo
	endif