1# SPDX-License-Identifier: GPL-2.0 2# Makefile for vm selftests 3 4LOCAL_HDRS += $(selfdir)/vm/local_config.h $(top_srcdir)/mm/gup_test.h 5 6include local_config.mk 7 8uname_M := $(shell uname -m 2>/dev/null || echo not) 9MACHINE ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/' -e 's/ppc64.*/ppc64/') 10 11# Without this, failed build products remain, with up-to-date timestamps, 12# thus tricking Make (and you!) into believing that All Is Well, in subsequent 13# make invocations: 14.DELETE_ON_ERROR: 15 16# Avoid accidental wrong builds, due to built-in rules working just a little 17# bit too well--but not quite as well as required for our situation here. 18# 19# In other words, "make userfaultfd" is supposed to fail to build at all, 20# because this Makefile only supports either "make" (all), or "make /full/path". 21# However, the built-in rules, if not suppressed, will pick up CFLAGS and the 22# initial LDLIBS (but not the target-specific LDLIBS, because those are only 23# set for the full path target!). This causes it to get pretty far into building 24# things despite using incorrect values such as an *occasionally* incomplete 25# LDLIBS. 26MAKEFLAGS += --no-builtin-rules 27 28CFLAGS = -Wall -I ../../../../usr/include $(EXTRA_CFLAGS) 29LDLIBS = -lrt -lpthread 30TEST_GEN_FILES = compaction_test 31TEST_GEN_FILES += gup_test 32TEST_GEN_FILES += hmm-tests 33TEST_GEN_FILES += hugepage-mmap 34TEST_GEN_FILES += hugepage-shm 35TEST_GEN_FILES += khugepaged 36TEST_GEN_FILES += madv_populate 37TEST_GEN_FILES += map_fixed_noreplace 38TEST_GEN_FILES += map_hugetlb 39TEST_GEN_FILES += map_populate 40TEST_GEN_FILES += memfd_secret 41TEST_GEN_FILES += mlock-random-test 42TEST_GEN_FILES += mlock2-tests 43TEST_GEN_FILES += mremap_dontunmap 44TEST_GEN_FILES += mremap_test 45TEST_GEN_FILES += on-fault-limit 46TEST_GEN_FILES += thuge-gen 47TEST_GEN_FILES += transhuge-stress 48TEST_GEN_FILES += userfaultfd 49TEST_GEN_FILES += split_huge_page_test 50TEST_GEN_FILES += ksm_tests 51 52ifeq ($(MACHINE),x86_64) 53CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_32bit_program.c -m32) 54CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_64bit_program.c) 55CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_program.c -no-pie) 56 57VMTARGETS := protection_keys 58BINARIES_32 := $(VMTARGETS:%=%_32) 59BINARIES_64 := $(VMTARGETS:%=%_64) 60 61ifeq ($(CAN_BUILD_WITH_NOPIE),1) 62CFLAGS += -no-pie 63endif 64 65ifeq ($(CAN_BUILD_I386),1) 66TEST_GEN_FILES += $(BINARIES_32) 67endif 68 69ifeq ($(CAN_BUILD_X86_64),1) 70TEST_GEN_FILES += $(BINARIES_64) 71endif 72else 73 74ifneq (,$(findstring $(MACHINE),ppc64)) 75TEST_GEN_FILES += protection_keys 76endif 77 78endif 79 80ifneq (,$(filter $(MACHINE),arm64 ia64 mips64 parisc64 ppc64 riscv64 s390x sh64 sparc64 x86_64)) 81TEST_GEN_FILES += va_128TBswitch 82TEST_GEN_FILES += virtual_address_range 83TEST_GEN_FILES += write_to_hugetlbfs 84endif 85 86TEST_PROGS := run_vmtests.sh 87 88TEST_FILES := test_vmalloc.sh 89 90KSFT_KHDR_INSTALL := 1 91include ../lib.mk 92 93ifeq ($(MACHINE),x86_64) 94BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32)) 95BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64)) 96 97define gen-target-rule-32 98$(1) $(1)_32: $(OUTPUT)/$(1)_32 99.PHONY: $(1) $(1)_32 100endef 101 102define gen-target-rule-64 103$(1) $(1)_64: $(OUTPUT)/$(1)_64 104.PHONY: $(1) $(1)_64 105endef 106 107ifeq ($(CAN_BUILD_I386),1) 108$(BINARIES_32): CFLAGS += -m32 -mxsave 109$(BINARIES_32): LDLIBS += -lrt -ldl -lm 110$(BINARIES_32): $(OUTPUT)/%_32: %.c 111 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@ 112$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-32,$(t)))) 113endif 114 115ifeq ($(CAN_BUILD_X86_64),1) 116$(BINARIES_64): CFLAGS += -m64 -mxsave 117$(BINARIES_64): LDLIBS += -lrt -ldl 118$(BINARIES_64): $(OUTPUT)/%_64: %.c 119 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@ 120$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-64,$(t)))) 121endif 122 123# x86_64 users should be encouraged to install 32-bit libraries 124ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01) 125all: warn_32bit_failure 126 127warn_32bit_failure: 128 @echo "Warning: you seem to have a broken 32-bit build" 2>&1; \ 129 echo "environment. This will reduce test coverage of 64-bit" 2>&1; \ 130 echo "kernels. If you are using a Debian-like distribution," 2>&1; \ 131 echo "try:"; 2>&1; \ 132 echo ""; \ 133 echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \ 134 echo ""; \ 135 echo "If you are using a Fedora-like distribution, try:"; \ 136 echo ""; \ 137 echo " yum install glibc-devel.*i686"; \ 138 exit 0; 139endif 140endif 141 142$(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap 143 144# HMM_EXTRA_LIBS may get set in local_config.mk, or it may be left empty. 145$(OUTPUT)/hmm-tests: LDLIBS += $(HMM_EXTRA_LIBS) 146 147$(OUTPUT)/ksm_tests: LDLIBS += -lnuma 148 149local_config.mk local_config.h: check_config.sh 150 /bin/sh ./check_config.sh $(CC) 151 152EXTRA_CLEAN += local_config.mk local_config.h 153 154ifeq ($(HMM_EXTRA_LIBS),) 155all: warn_missing_hugelibs 156 157warn_missing_hugelibs: 158 @echo ; \ 159 echo "Warning: missing libhugetlbfs support. Some HMM tests will be skipped." ; \ 160 echo 161endif 162