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 -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES) 37LDLIBS = -lrt -lpthread -lm 38 39KDIR ?= /lib/modules/$(shell uname -r)/build 40ifneq (,$(wildcard $(KDIR)/Module.symvers)) 41ifneq (,$(wildcard $(KDIR)/include/linux/page_frag_cache.h)) 42TEST_GEN_MODS_DIR := page_frag 43else 44PAGE_FRAG_WARNING = "missing page_frag_cache.h, please use a newer kernel" 45endif 46else 47PAGE_FRAG_WARNING = "missing Module.symvers, please have the kernel built first" 48endif 49 50TEST_GEN_FILES = cow 51TEST_GEN_FILES += compaction_test 52TEST_GEN_FILES += gup_longterm 53TEST_GEN_FILES += gup_test 54TEST_GEN_FILES += hmm-tests 55TEST_GEN_FILES += hugetlb-madvise 56TEST_GEN_FILES += hugetlb-read-hwpoison 57TEST_GEN_FILES += hugetlb-soft-offline 58TEST_GEN_FILES += hugepage-mmap 59TEST_GEN_FILES += hugepage-mremap 60TEST_GEN_FILES += hugepage-shm 61TEST_GEN_FILES += hugepage-vmemmap 62TEST_GEN_FILES += khugepaged 63TEST_GEN_FILES += madv_populate 64TEST_GEN_FILES += map_fixed_noreplace 65TEST_GEN_FILES += map_hugetlb 66TEST_GEN_FILES += map_populate 67ifneq (,$(filter $(ARCH),arm64 riscv riscv64 x86 x86_64)) 68TEST_GEN_FILES += memfd_secret 69endif 70TEST_GEN_FILES += migration 71TEST_GEN_FILES += mkdirty 72TEST_GEN_FILES += mlock-random-test 73TEST_GEN_FILES += mlock2-tests 74TEST_GEN_FILES += mrelease_test 75TEST_GEN_FILES += mremap_dontunmap 76TEST_GEN_FILES += mremap_test 77TEST_GEN_FILES += mseal_test 78TEST_GEN_FILES += seal_elf 79TEST_GEN_FILES += on-fault-limit 80TEST_GEN_FILES += pagemap_ioctl 81TEST_GEN_FILES += thuge-gen 82TEST_GEN_FILES += transhuge-stress 83TEST_GEN_FILES += uffd-stress 84TEST_GEN_FILES += uffd-unit-tests 85TEST_GEN_FILES += split_huge_page_test 86TEST_GEN_FILES += ksm_tests 87TEST_GEN_FILES += ksm_functional_tests 88TEST_GEN_FILES += mdwe_test 89TEST_GEN_FILES += hugetlb_fault_after_madv 90TEST_GEN_FILES += hugetlb_madv_vs_map 91TEST_GEN_FILES += hugetlb_dio 92TEST_GEN_FILES += droppable 93TEST_GEN_FILES += guard-pages 94 95ifneq ($(ARCH),arm64) 96TEST_GEN_FILES += soft-dirty 97endif 98 99ifeq ($(ARCH),x86_64) 100CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_32bit_program.c -m32) 101CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_64bit_program.c) 102CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_program.c -no-pie) 103 104VMTARGETS := protection_keys 105VMTARGETS += pkey_sighandler_tests 106BINARIES_32 := $(VMTARGETS:%=%_32) 107BINARIES_64 := $(VMTARGETS:%=%_64) 108 109ifeq ($(CAN_BUILD_WITH_NOPIE),1) 110CFLAGS += -no-pie 111endif 112 113ifeq ($(CAN_BUILD_I386),1) 114TEST_GEN_FILES += $(BINARIES_32) 115endif 116 117ifeq ($(CAN_BUILD_X86_64),1) 118TEST_GEN_FILES += $(BINARIES_64) 119endif 120 121else ifeq ($(ARCH),arm64) 122TEST_GEN_FILES += protection_keys 123TEST_GEN_FILES += pkey_sighandler_tests 124else ifeq ($(ARCH),powerpc) 125TEST_GEN_FILES += protection_keys 126endif 127 128ifneq (,$(filter $(ARCH),arm64 mips64 parisc64 powerpc riscv64 s390x sparc64 x86_64 s390)) 129TEST_GEN_FILES += va_high_addr_switch 130ifneq ($(ARCH),riscv64) 131TEST_GEN_FILES += virtual_address_range 132endif 133TEST_GEN_FILES += write_to_hugetlbfs 134endif 135 136TEST_PROGS := run_vmtests.sh 137 138TEST_FILES := test_vmalloc.sh 139TEST_FILES += test_hmm.sh 140TEST_FILES += va_high_addr_switch.sh 141TEST_FILES += charge_reserved_hugetlb.sh 142TEST_FILES += hugetlb_reparenting_test.sh 143TEST_FILES += test_page_frag.sh 144 145# required by charge_reserved_hugetlb.sh 146TEST_FILES += write_hugetlb_memory.sh 147 148include ../lib.mk 149 150$(TEST_GEN_PROGS): vm_util.c thp_settings.c 151$(TEST_GEN_FILES): vm_util.c thp_settings.c 152 153$(OUTPUT)/uffd-stress: uffd-common.c 154$(OUTPUT)/uffd-unit-tests: uffd-common.c 155 156ifeq ($(ARCH),x86_64) 157BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32)) 158BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64)) 159 160define gen-target-rule-32 161$(1) $(1)_32: $(OUTPUT)/$(1)_32 162.PHONY: $(1) $(1)_32 163endef 164 165define gen-target-rule-64 166$(1) $(1)_64: $(OUTPUT)/$(1)_64 167.PHONY: $(1) $(1)_64 168endef 169 170ifeq ($(CAN_BUILD_I386),1) 171$(BINARIES_32): CFLAGS += -m32 -mxsave 172$(BINARIES_32): LDLIBS += -lrt -ldl -lm 173$(BINARIES_32): $(OUTPUT)/%_32: %.c 174 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@ 175$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-32,$(t)))) 176endif 177 178ifeq ($(CAN_BUILD_X86_64),1) 179$(BINARIES_64): CFLAGS += -m64 -mxsave 180$(BINARIES_64): LDLIBS += -lrt -ldl 181$(BINARIES_64): $(OUTPUT)/%_64: %.c 182 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@ 183$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-64,$(t)))) 184endif 185 186# x86_64 users should be encouraged to install 32-bit libraries 187ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01) 188all: warn_32bit_failure 189 190warn_32bit_failure: 191 @echo "Warning: you seem to have a broken 32-bit build" 2>&1; \ 192 echo "environment. This will reduce test coverage of 64-bit" 2>&1; \ 193 echo "kernels. If you are using a Debian-like distribution," 2>&1; \ 194 echo "try:"; 2>&1; \ 195 echo ""; \ 196 echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \ 197 echo ""; \ 198 echo "If you are using a Fedora-like distribution, try:"; \ 199 echo ""; \ 200 echo " yum install glibc-devel.*i686"; \ 201 exit 0; 202endif 203endif 204 205# IOURING_EXTRA_LIBS may get set in local_config.mk, or it may be left empty. 206$(OUTPUT)/cow: LDLIBS += $(IOURING_EXTRA_LIBS) 207 208$(OUTPUT)/gup_longterm: LDLIBS += $(IOURING_EXTRA_LIBS) 209 210$(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap 211 212$(OUTPUT)/ksm_tests: LDLIBS += -lnuma 213 214$(OUTPUT)/migration: LDLIBS += -lnuma 215 216local_config.mk local_config.h: check_config.sh 217 /bin/sh ./check_config.sh $(CC) 218 219EXTRA_CLEAN += local_config.mk local_config.h 220 221ifeq ($(IOURING_EXTRA_LIBS),) 222all: warn_missing_liburing 223 224warn_missing_liburing: 225 @echo ; \ 226 echo "Warning: missing liburing support. Some tests will be skipped." ; \ 227 echo 228endif 229 230ifneq ($(PAGE_FRAG_WARNING),) 231all: warn_missing_page_frag 232 233warn_missing_page_frag: 234 @echo ; \ 235 echo "Warning: $(PAGE_FRAG_WARNING). page_frag test will be skipped." ; \ 236 echo 237endif 238