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