# SPDX-License-Identifier: GPL-2.0# Makefile for mm selftests # IMPORTANT: If you add a new test CATEGORY please add a simple wrapper# script so kunit knows to run it, and add it to the list below.# If you do not YOUR TESTS WILL NOT RUN IN THE CI. LOCAL_HDRS += $(selfdir)/mm/local_config.h_gen $(top_srcdir)/mm/gup_test.hLOCAL_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)elseuname_M := $(shell echo $(CROSS_COMPILE) | grep -o '^[a-z0-9]\+')endifARCH ?= $(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 -O2 -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES)CFLAGS += -Wunreachable-codeLDLIBS = -lrt -lpthread -lm # Some distributions (such as Ubuntu) configure GCC so that _FORTIFY_SOURCE is# automatically enabled at -O1 or above. This triggers various unused-result# warnings where functions such as read() or write() are called and their# return value is not checked. Disable _FORTIFY_SOURCE to silence those# warnings.CFLAGS += -U_FORTIFY_SOURCE KDIR ?= $(if $(O),$(O),$(realpath ../../../..))ifneq (,$(wildcard $(KDIR)/Module.symvers))TEST_GEN_MODS_DIR := page_fragelsePAGE_FRAG_WARNING = "missing Module.symvers, please have the kernel built first"endif TEST_GEN_FILES = cowTEST_GEN_FILES += compaction_testTEST_GEN_FILES += gup_longtermTEST_GEN_FILES += gup_testTEST_GEN_FILES += hmm-testsTEST_GEN_FILES += hugetlb-madviseTEST_GEN_FILES += hugetlb-mmapTEST_GEN_FILES += hugetlb-mremapTEST_GEN_FILES += hugetlb-read-hwpoisonTEST_GEN_FILES += hugetlb-shmTEST_GEN_FILES += hugetlb-soft-offlineTEST_GEN_FILES += khugepagedTEST_GEN_FILES += madv_populateTEST_GEN_FILES += map_fixed_noreplaceTEST_GEN_FILES += map_populateifneq (,$(filter $(ARCH),arm64 riscv riscv64 x86 x86_64 loongarch32 loongarch64))TEST_GEN_FILES += memfd_secretendifTEST_GEN_FILES += memory-failureTEST_GEN_FILES += migrationTEST_GEN_FILES += mkdirtyTEST_GEN_FILES += mlock-random-testTEST_GEN_FILES += mlock2-testsTEST_GEN_FILES += mrelease_testTEST_GEN_FILES += mremap_dontunmapTEST_GEN_FILES += mremap_testTEST_GEN_FILES += mseal_testTEST_GEN_FILES += on-fault-limitTEST_GEN_FILES += pagemap_ioctlTEST_GEN_FILES += pfnmapTEST_GEN_FILES += process_madvTEST_GEN_FILES += prctl_thp_disableTEST_GEN_FILES += thuge-genTEST_GEN_FILES += transhuge-stressTEST_GEN_FILES += uffd-stressTEST_GEN_FILES += uffd-unit-testsTEST_GEN_FILES += uffd-wp-mremapTEST_GEN_FILES += split_huge_page_testTEST_GEN_FILES += ksm_testsTEST_GEN_FILES += ksm_functional_testsTEST_GEN_FILES += mdwe_testTEST_GEN_FILES += hugetlb_fault_after_madvTEST_GEN_FILES += hugetlb_madv_vs_mapTEST_GEN_FILES += hugetlb_dioTEST_GEN_FILES += droppableTEST_GEN_FILES += guard-regionsTEST_GEN_FILES += mergeTEST_GEN_FILES += rmapTEST_GEN_FILES += folio_split_race_test ifneq ($(ARCH),arm64)TEST_GEN_FILES += soft-dirtyendif 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_keysVMTARGETS += pkey_sighandler_testsBINARIES_32 := $(VMTARGETS:%=%_32)BINARIES_64 := $(VMTARGETS:%=%_64) ifeq ($(CAN_BUILD_WITH_NOPIE),1)CFLAGS += -no-pieendif ifeq ($(CAN_BUILD_I386),1)TEST_GEN_FILES += $(BINARIES_32)endif ifeq ($(CAN_BUILD_X86_64),1)TEST_GEN_FILES += $(BINARIES_64)endif else ifeq ($(ARCH),arm64)TEST_GEN_FILES += protection_keysTEST_GEN_FILES += pkey_sighandler_testselse ifeq ($(ARCH),powerpc)TEST_GEN_FILES += protection_keysendif ifneq (,$(filter $(ARCH),arm64 mips64 parisc64 powerpc riscv64 s390x sparc64 x86_64 s390))TEST_GEN_FILES += va_high_addr_switchTEST_GEN_FILES += write_to_hugetlbfsendif TEST_PROGS += ksft_compaction.shTEST_PROGS += ksft_cow.shTEST_PROGS += ksft_gup_test.shTEST_PROGS += ksft_hmm.shTEST_PROGS += ksft_hugetlb.shTEST_PROGS += ksft_hugevm.shTEST_PROGS += ksft_kmemleak_confirm.shTEST_PROGS += ksft_kmemleak_dedup.shTEST_PROGS += ksft_ksm.shTEST_PROGS += ksft_ksm_numa.shTEST_PROGS += ksft_madv_guard.shTEST_PROGS += ksft_madv_populate.shTEST_PROGS += ksft_memfd_secret.shTEST_PROGS += ksft_memory_failure.shTEST_PROGS += ksft_migration.shTEST_PROGS += ksft_mkdirty.shTEST_PROGS += ksft_mlock.shTEST_PROGS += ksft_mmap.shTEST_PROGS += ksft_mremap.shTEST_PROGS += ksft_pagemap.shTEST_PROGS += ksft_pfnmap.shTEST_PROGS += ksft_pkey.shTEST_PROGS += ksft_process_madv.shTEST_PROGS += ksft_process_mrelease.shTEST_PROGS += ksft_rmap.shTEST_PROGS += ksft_soft_dirty.shTEST_PROGS += ksft_thp.shTEST_PROGS += ksft_userfaultfd.shTEST_PROGS += ksft_vma_merge.shTEST_PROGS += ksft_vmalloc.sh TEST_FILES := test_vmalloc.shTEST_FILES += test_hmm.shTEST_FILES += va_high_addr_switch.shTEST_FILES += charge_reserved_hugetlb.shTEST_FILES += hugetlb_reparenting_test.shTEST_FILES += test_page_frag.shTEST_FILES += run_vmtests.sh # required by charge_reserved_hugetlb.shTEST_FILES += write_hugetlb_memory.sh include ../lib.mk $(TEST_GEN_PROGS): vm_util.c hugepage_settings.c$(TEST_GEN_FILES): vm_util.c hugepage_settings.c $(OUTPUT)/uffd-stress: uffd-common.c$(OUTPUT)/uffd-unit-tests: uffd-common.c$(OUTPUT)/uffd-wp-mremap: uffd-common.c$(OUTPUT)/protection_keys: pkey_util.c$(OUTPUT)/pkey_sighandler_tests: pkey_util.c ifeq ($(ARCH),x86_64)BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64)) $(BINARIES_32) $(BINARIES_64): pkey_util.c define gen-target-rule-32$(1) $(1)_32: $(OUTPUT)/$(1)_32.PHONY: $(1) $(1)_32endef define gen-target-rule-64$(1) $(1)_64: $(OUTPUT)/$(1)_64.PHONY: $(1) $(1)_64endef ifeq ($(CAN_BUILD_I386),1)$(BINARIES_32): CFLAGS += -m32 -mxsave$(BINARIES_32): LDLIBS += -lrt -ldl -lm$(BINARIES_32): $(OUTPUT)/%_32: %.c	$(call msg,CC,,$@)	$(Q)$(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	$(call msg,CC,,$@)	$(Q)$(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 librariesifeq ($(CAN_BUILD_I386)$(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;endifendif # 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 $(OUTPUT)/rmap: LDLIBS += -lnuma local_config.mk local_config.h_gen: check_config.sh	$(call msg,CHK,config,$@)	$(Q)CC="$(CC)" CFLAGS="$(CFLAGS)" ./check_config.sh EXTRA_CLEAN += local_config.mk local_config.h_gen ifeq ($(IOURING_EXTRA_LIBS),)all: warn_missing_liburing warn_missing_liburing:	@echo ; \	echo "Warning: missing liburing support. Some tests will be skipped." ; \	echoendif ifneq ($(PAGE_FRAG_WARNING),)all: warn_missing_page_frag warn_missing_page_frag:	@echo ; \	echo "Warning: $(PAGE_FRAG_WARNING). page_frag test will be skipped." ; \	echoendif