1# SPDX-License-Identifier: GPL-2.0 2# Makefile for mm selftests 3 4# IMPORTANT: If you add a new test CATEGORY please add a simple wrapper 5# script so kunit knows to run it, and add it to the list below. 6# If you do not YOUR TESTS WILL NOT RUN IN THE CI. 7 8LOCAL_HDRS += $(selfdir)/mm/local_config.h $(top_srcdir)/mm/gup_test.h 9LOCAL_HDRS += $(selfdir)/mm/mseal_helpers.h 10 11include local_config.mk 12 13ifeq ($(ARCH),) 14 15ifeq ($(CROSS_COMPILE),) 16uname_M := $(shell uname -m 2>/dev/null || echo not) 17else 18uname_M := $(shell echo $(CROSS_COMPILE) | grep -o '^[a-z0-9]\+') 19endif 20ARCH ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/' -e 's/ppc64.*/powerpc/') 21endif 22 23# Without this, failed build products remain, with up-to-date timestamps, 24# thus tricking Make (and you!) into believing that All Is Well, in subsequent 25# make invocations: 26.DELETE_ON_ERROR: 27 28# Avoid accidental wrong builds, due to built-in rules working just a little 29# bit too well--but not quite as well as required for our situation here. 30# 31# In other words, "make $SOME_TEST" is supposed to fail to build at all, 32# because this Makefile only supports either "make" (all), or "make /full/path". 33# However, the built-in rules, if not suppressed, will pick up CFLAGS and the 34# initial LDLIBS (but not the target-specific LDLIBS, because those are only 35# set for the full path target!). This causes it to get pretty far into building 36# things despite using incorrect values such as an *occasionally* incomplete 37# LDLIBS. 38MAKEFLAGS += --no-builtin-rules 39 40CFLAGS = -Wall -O2 -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES) 41CFLAGS += -Wunreachable-code 42LDLIBS = -lrt -lpthread -lm 43 44# Some distributions (such as Ubuntu) configure GCC so that _FORTIFY_SOURCE is 45# automatically enabled at -O1 or above. This triggers various unused-result 46# warnings where functions such as read() or write() are called and their 47# return value is not checked. Disable _FORTIFY_SOURCE to silence those 48# warnings. 49CFLAGS += -U_FORTIFY_SOURCE 50 51KDIR ?= $(if $(O),$(O),$(realpath ../../../..)) 52ifneq (,$(wildcard $(KDIR)/Module.symvers)) 53TEST_GEN_MODS_DIR := page_frag 54else 55PAGE_FRAG_WARNING = "missing Module.symvers, please have the kernel built first" 56endif 57 58TEST_GEN_FILES = cow 59TEST_GEN_FILES += compaction_test 60TEST_GEN_FILES += gup_longterm 61TEST_GEN_FILES += gup_test 62TEST_GEN_FILES += hmm-tests 63TEST_GEN_FILES += hugetlb-madvise 64TEST_GEN_FILES += hugetlb-read-hwpoison 65TEST_GEN_FILES += hugetlb-soft-offline 66TEST_GEN_FILES += hugepage-mmap 67TEST_GEN_FILES += hugepage-mremap 68TEST_GEN_FILES += hugepage-shm 69TEST_GEN_FILES += hugepage-vmemmap 70TEST_GEN_FILES += khugepaged 71TEST_GEN_FILES += madv_populate 72TEST_GEN_FILES += map_fixed_noreplace 73TEST_GEN_FILES += map_hugetlb 74TEST_GEN_FILES += map_populate 75ifneq (,$(filter $(ARCH),arm64 riscv riscv64 x86 x86_64 loongarch32 loongarch64)) 76TEST_GEN_FILES += memfd_secret 77endif 78TEST_GEN_FILES += memory-failure 79TEST_GEN_FILES += migration 80TEST_GEN_FILES += mkdirty 81TEST_GEN_FILES += mlock-random-test 82TEST_GEN_FILES += mlock2-tests 83TEST_GEN_FILES += mrelease_test 84TEST_GEN_FILES += mremap_dontunmap 85TEST_GEN_FILES += mremap_test 86TEST_GEN_FILES += mseal_test 87TEST_GEN_FILES += on-fault-limit 88TEST_GEN_FILES += pagemap_ioctl 89TEST_GEN_FILES += pfnmap 90TEST_GEN_FILES += process_madv 91TEST_GEN_FILES += prctl_thp_disable 92TEST_GEN_FILES += thuge-gen 93TEST_GEN_FILES += transhuge-stress 94TEST_GEN_FILES += uffd-stress 95TEST_GEN_FILES += uffd-unit-tests 96TEST_GEN_FILES += uffd-wp-mremap 97TEST_GEN_FILES += split_huge_page_test 98TEST_GEN_FILES += ksm_tests 99TEST_GEN_FILES += ksm_functional_tests 100TEST_GEN_FILES += mdwe_test 101TEST_GEN_FILES += hugetlb_fault_after_madv 102TEST_GEN_FILES += hugetlb_madv_vs_map 103TEST_GEN_FILES += hugetlb_dio 104TEST_GEN_FILES += droppable 105TEST_GEN_FILES += guard-regions 106TEST_GEN_FILES += merge 107TEST_GEN_FILES += rmap 108TEST_GEN_FILES += folio_split_race_test 109 110ifneq ($(ARCH),arm64) 111TEST_GEN_FILES += soft-dirty 112endif 113 114ifeq ($(ARCH),x86_64) 115CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_32bit_program.c -m32) 116CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_64bit_program.c) 117CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_program.c -no-pie) 118 119VMTARGETS := protection_keys 120VMTARGETS += pkey_sighandler_tests 121BINARIES_32 := $(VMTARGETS:%=%_32) 122BINARIES_64 := $(VMTARGETS:%=%_64) 123 124ifeq ($(CAN_BUILD_WITH_NOPIE),1) 125CFLAGS += -no-pie 126endif 127 128ifeq ($(CAN_BUILD_I386),1) 129TEST_GEN_FILES += $(BINARIES_32) 130endif 131 132ifeq ($(CAN_BUILD_X86_64),1) 133TEST_GEN_FILES += $(BINARIES_64) 134endif 135 136else ifeq ($(ARCH),arm64) 137TEST_GEN_FILES += protection_keys 138TEST_GEN_FILES += pkey_sighandler_tests 139else ifeq ($(ARCH),powerpc) 140TEST_GEN_FILES += protection_keys 141endif 142 143ifneq (,$(filter $(ARCH),arm64 mips64 parisc64 powerpc riscv64 s390x sparc64 x86_64 s390)) 144TEST_GEN_FILES += va_high_addr_switch 145TEST_GEN_FILES += write_to_hugetlbfs 146endif 147 148TEST_PROGS += ksft_compaction.sh 149TEST_PROGS += ksft_cow.sh 150TEST_PROGS += ksft_gup_test.sh 151TEST_PROGS += ksft_hmm.sh 152TEST_PROGS += ksft_hugetlb.sh 153TEST_PROGS += ksft_hugevm.sh 154TEST_PROGS += ksft_ksm.sh 155TEST_PROGS += ksft_ksm_numa.sh 156TEST_PROGS += ksft_madv_guard.sh 157TEST_PROGS += ksft_madv_populate.sh 158TEST_PROGS += ksft_memfd_secret.sh 159TEST_PROGS += ksft_memory_failure.sh 160TEST_PROGS += ksft_migration.sh 161TEST_PROGS += ksft_mkdirty.sh 162TEST_PROGS += ksft_mlock.sh 163TEST_PROGS += ksft_mmap.sh 164TEST_PROGS += ksft_mremap.sh 165TEST_PROGS += ksft_pagemap.sh 166TEST_PROGS += ksft_pfnmap.sh 167TEST_PROGS += ksft_pkey.sh 168TEST_PROGS += ksft_process_madv.sh 169TEST_PROGS += ksft_process_mrelease.sh 170TEST_PROGS += ksft_rmap.sh 171TEST_PROGS += ksft_soft_dirty.sh 172TEST_PROGS += ksft_thp.sh 173TEST_PROGS += ksft_userfaultfd.sh 174TEST_PROGS += ksft_vma_merge.sh 175TEST_PROGS += ksft_vmalloc.sh 176 177TEST_FILES := test_vmalloc.sh 178TEST_FILES += test_hmm.sh 179TEST_FILES += va_high_addr_switch.sh 180TEST_FILES += charge_reserved_hugetlb.sh 181TEST_FILES += hugetlb_reparenting_test.sh 182TEST_FILES += test_page_frag.sh 183TEST_FILES += run_vmtests.sh 184 185# required by charge_reserved_hugetlb.sh 186TEST_FILES += write_hugetlb_memory.sh 187 188include ../lib.mk 189 190$(TEST_GEN_PROGS): vm_util.c thp_settings.c 191$(TEST_GEN_FILES): vm_util.c thp_settings.c 192 193$(OUTPUT)/uffd-stress: uffd-common.c 194$(OUTPUT)/uffd-unit-tests: uffd-common.c 195$(OUTPUT)/uffd-wp-mremap: uffd-common.c 196$(OUTPUT)/protection_keys: pkey_util.c 197$(OUTPUT)/pkey_sighandler_tests: pkey_util.c 198 199ifeq ($(ARCH),x86_64) 200BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32)) 201BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64)) 202 203$(BINARIES_32) $(BINARIES_64): pkey_util.c 204 205define gen-target-rule-32 206$(1) $(1)_32: $(OUTPUT)/$(1)_32 207.PHONY: $(1) $(1)_32 208endef 209 210define gen-target-rule-64 211$(1) $(1)_64: $(OUTPUT)/$(1)_64 212.PHONY: $(1) $(1)_64 213endef 214 215ifeq ($(CAN_BUILD_I386),1) 216$(BINARIES_32): CFLAGS += -m32 -mxsave 217$(BINARIES_32): LDLIBS += -lrt -ldl -lm 218$(BINARIES_32): $(OUTPUT)/%_32: %.c 219 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@ 220$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-32,$(t)))) 221endif 222 223ifeq ($(CAN_BUILD_X86_64),1) 224$(BINARIES_64): CFLAGS += -m64 -mxsave 225$(BINARIES_64): LDLIBS += -lrt -ldl 226$(BINARIES_64): $(OUTPUT)/%_64: %.c 227 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@ 228$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-64,$(t)))) 229endif 230 231# x86_64 users should be encouraged to install 32-bit libraries 232ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01) 233all: warn_32bit_failure 234 235warn_32bit_failure: 236 @echo "Warning: you seem to have a broken 32-bit build" 2>&1; \ 237 echo "environment. This will reduce test coverage of 64-bit" 2>&1; \ 238 echo "kernels. If you are using a Debian-like distribution," 2>&1; \ 239 echo "try:"; 2>&1; \ 240 echo ""; \ 241 echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \ 242 echo ""; \ 243 echo "If you are using a Fedora-like distribution, try:"; \ 244 echo ""; \ 245 echo " yum install glibc-devel.*i686"; \ 246 exit 0; 247endif 248endif 249 250# IOURING_EXTRA_LIBS may get set in local_config.mk, or it may be left empty. 251$(OUTPUT)/cow: LDLIBS += $(IOURING_EXTRA_LIBS) 252 253$(OUTPUT)/gup_longterm: LDLIBS += $(IOURING_EXTRA_LIBS) 254 255$(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap 256 257$(OUTPUT)/ksm_tests: LDLIBS += -lnuma 258 259$(OUTPUT)/migration: LDLIBS += -lnuma 260 261$(OUTPUT)/rmap: LDLIBS += -lnuma 262 263local_config.mk local_config.h: check_config.sh 264 CC="$(CC)" CFLAGS="$(CFLAGS)" ./check_config.sh 265 266EXTRA_CLEAN += local_config.mk local_config.h 267 268ifeq ($(IOURING_EXTRA_LIBS),) 269all: warn_missing_liburing 270 271warn_missing_liburing: 272 @echo ; \ 273 echo "Warning: missing liburing support. Some tests will be skipped." ; \ 274 echo 275endif 276 277ifneq ($(PAGE_FRAG_WARNING),) 278all: warn_missing_page_frag 279 280warn_missing_page_frag: 281 @echo ; \ 282 echo "Warning: $(PAGE_FRAG_WARNING). page_frag test will be skipped." ; \ 283 echo 284endif 285