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) $(TOOLS_INCLUDES) 37LDLIBS = -lrt -lpthread -lm 38 39# Some distributions (such as Ubuntu) configure GCC so that _FORTIFY_SOURCE is 40# automatically enabled at -O1 or above. This triggers various unused-result 41# warnings where functions such as read() or write() are called and their 42# return value is not checked. Disable _FORTIFY_SOURCE to silence those 43# warnings. 44CFLAGS += -U_FORTIFY_SOURCE 45 46TEST_GEN_FILES = cow 47TEST_GEN_FILES += compaction_test 48TEST_GEN_FILES += gup_longterm 49TEST_GEN_FILES += gup_test 50TEST_GEN_FILES += hmm-tests 51TEST_GEN_FILES += hugetlb-madvise 52TEST_GEN_FILES += hugetlb-read-hwpoison 53TEST_GEN_FILES += hugetlb-soft-offline 54TEST_GEN_FILES += hugepage-mmap 55TEST_GEN_FILES += hugepage-mremap 56TEST_GEN_FILES += hugepage-shm 57TEST_GEN_FILES += hugepage-vmemmap 58TEST_GEN_FILES += khugepaged 59TEST_GEN_FILES += madv_populate 60TEST_GEN_FILES += map_fixed_noreplace 61TEST_GEN_FILES += map_hugetlb 62TEST_GEN_FILES += map_populate 63ifneq (,$(filter $(ARCH),arm64 riscv riscv64 x86 x86_64)) 64TEST_GEN_FILES += memfd_secret 65endif 66TEST_GEN_FILES += migration 67TEST_GEN_FILES += mkdirty 68TEST_GEN_FILES += mlock-random-test 69TEST_GEN_FILES += mlock2-tests 70TEST_GEN_FILES += mrelease_test 71TEST_GEN_FILES += mremap_dontunmap 72TEST_GEN_FILES += mremap_test 73TEST_GEN_FILES += mseal_test 74TEST_GEN_FILES += seal_elf 75TEST_GEN_FILES += on-fault-limit 76TEST_GEN_FILES += pagemap_ioctl 77TEST_GEN_FILES += thuge-gen 78TEST_GEN_FILES += transhuge-stress 79TEST_GEN_FILES += uffd-stress 80TEST_GEN_FILES += uffd-unit-tests 81TEST_GEN_FILES += split_huge_page_test 82TEST_GEN_FILES += ksm_tests 83TEST_GEN_FILES += ksm_functional_tests 84TEST_GEN_FILES += mdwe_test 85TEST_GEN_FILES += hugetlb_fault_after_madv 86TEST_GEN_FILES += hugetlb_madv_vs_map 87TEST_GEN_FILES += hugetlb_dio 88TEST_GEN_FILES += droppable 89TEST_GEN_FILES += guard-regions 90 91ifneq ($(ARCH),arm64) 92TEST_GEN_FILES += soft-dirty 93endif 94 95ifeq ($(ARCH),x86_64) 96CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_32bit_program.c -m32) 97CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_64bit_program.c) 98CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_program.c -no-pie) 99 100VMTARGETS := protection_keys 101VMTARGETS += pkey_sighandler_tests 102BINARIES_32 := $(VMTARGETS:%=%_32) 103BINARIES_64 := $(VMTARGETS:%=%_64) 104 105ifeq ($(CAN_BUILD_WITH_NOPIE),1) 106CFLAGS += -no-pie 107endif 108 109ifeq ($(CAN_BUILD_I386),1) 110TEST_GEN_FILES += $(BINARIES_32) 111endif 112 113ifeq ($(CAN_BUILD_X86_64),1) 114TEST_GEN_FILES += $(BINARIES_64) 115endif 116else 117 118ifneq (,$(filter $(ARCH),arm64 powerpc)) 119TEST_GEN_FILES += protection_keys 120endif 121 122endif 123 124ifneq (,$(filter $(ARCH),arm64 mips64 parisc64 powerpc riscv64 s390x sparc64 x86_64 s390)) 125TEST_GEN_FILES += va_high_addr_switch 126TEST_GEN_FILES += virtual_address_range 127TEST_GEN_FILES += write_to_hugetlbfs 128endif 129 130TEST_PROGS := run_vmtests.sh 131 132TEST_FILES := test_vmalloc.sh 133TEST_FILES += test_hmm.sh 134TEST_FILES += va_high_addr_switch.sh 135TEST_FILES += charge_reserved_hugetlb.sh 136TEST_FILES += hugetlb_reparenting_test.sh 137 138# required by charge_reserved_hugetlb.sh 139TEST_FILES += write_hugetlb_memory.sh 140 141include ../lib.mk 142 143$(TEST_GEN_PROGS): vm_util.c thp_settings.c 144$(TEST_GEN_FILES): vm_util.c thp_settings.c 145 146$(OUTPUT)/uffd-stress: uffd-common.c 147$(OUTPUT)/uffd-unit-tests: uffd-common.c 148 149ifeq ($(ARCH),x86_64) 150BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32)) 151BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64)) 152 153define gen-target-rule-32 154$(1) $(1)_32: $(OUTPUT)/$(1)_32 155.PHONY: $(1) $(1)_32 156endef 157 158define gen-target-rule-64 159$(1) $(1)_64: $(OUTPUT)/$(1)_64 160.PHONY: $(1) $(1)_64 161endef 162 163ifeq ($(CAN_BUILD_I386),1) 164$(BINARIES_32): CFLAGS += -m32 -mxsave 165$(BINARIES_32): LDLIBS += -lrt -ldl -lm 166$(BINARIES_32): $(OUTPUT)/%_32: %.c 167 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@ 168$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-32,$(t)))) 169endif 170 171ifeq ($(CAN_BUILD_X86_64),1) 172$(BINARIES_64): CFLAGS += -m64 -mxsave 173$(BINARIES_64): LDLIBS += -lrt -ldl 174$(BINARIES_64): $(OUTPUT)/%_64: %.c 175 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@ 176$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-64,$(t)))) 177endif 178 179# x86_64 users should be encouraged to install 32-bit libraries 180ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01) 181all: warn_32bit_failure 182 183warn_32bit_failure: 184 @echo "Warning: you seem to have a broken 32-bit build" 2>&1; \ 185 echo "environment. This will reduce test coverage of 64-bit" 2>&1; \ 186 echo "kernels. If you are using a Debian-like distribution," 2>&1; \ 187 echo "try:"; 2>&1; \ 188 echo ""; \ 189 echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \ 190 echo ""; \ 191 echo "If you are using a Fedora-like distribution, try:"; \ 192 echo ""; \ 193 echo " yum install glibc-devel.*i686"; \ 194 exit 0; 195endif 196endif 197 198# IOURING_EXTRA_LIBS may get set in local_config.mk, or it may be left empty. 199$(OUTPUT)/cow: LDLIBS += $(IOURING_EXTRA_LIBS) 200 201$(OUTPUT)/gup_longterm: LDLIBS += $(IOURING_EXTRA_LIBS) 202 203$(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap 204 205$(OUTPUT)/ksm_tests: LDLIBS += -lnuma 206 207$(OUTPUT)/migration: LDLIBS += -lnuma 208 209local_config.mk local_config.h: check_config.sh 210 /bin/sh ./check_config.sh $(CC) 211 212EXTRA_CLEAN += local_config.mk local_config.h 213 214ifeq ($(IOURING_EXTRA_LIBS),) 215all: warn_missing_liburing 216 217warn_missing_liburing: 218 @echo ; \ 219 echo "Warning: missing liburing support. Some tests will be skipped." ; \ 220 echo 221endif 222