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