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 $(EXTRA_CFLAGS) 29LDLIBS = -lrt -lpthread 30TEST_GEN_FILES = compaction_test 31TEST_GEN_FILES += gup_test 32TEST_GEN_FILES += hmm-tests 33TEST_GEN_FILES += hugepage-mmap 34TEST_GEN_FILES += hugepage-mremap 35TEST_GEN_FILES += hugepage-shm 36TEST_GEN_FILES += khugepaged 37TEST_GEN_FILES += madv_populate 38TEST_GEN_FILES += map_fixed_noreplace 39TEST_GEN_FILES += map_hugetlb 40TEST_GEN_FILES += map_populate 41TEST_GEN_FILES += memfd_secret 42TEST_GEN_FILES += mlock-random-test 43TEST_GEN_FILES += mlock2-tests 44TEST_GEN_FILES += mremap_dontunmap 45TEST_GEN_FILES += mremap_test 46TEST_GEN_FILES += on-fault-limit 47TEST_GEN_FILES += thuge-gen 48TEST_GEN_FILES += transhuge-stress 49TEST_GEN_FILES += userfaultfd 50TEST_GEN_FILES += split_huge_page_test 51TEST_GEN_FILES += ksm_tests 52 53ifeq ($(MACHINE),x86_64) 54CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_32bit_program.c -m32) 55CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_64bit_program.c) 56CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_program.c -no-pie) 57 58TARGETS := protection_keys 59BINARIES_32 := $(TARGETS:%=%_32) 60BINARIES_64 := $(TARGETS:%=%_64) 61 62ifeq ($(CAN_BUILD_WITH_NOPIE),1) 63CFLAGS += -no-pie 64endif 65 66ifeq ($(CAN_BUILD_I386),1) 67TEST_GEN_FILES += $(BINARIES_32) 68endif 69 70ifeq ($(CAN_BUILD_X86_64),1) 71TEST_GEN_FILES += $(BINARIES_64) 72endif 73else 74 75ifneq (,$(findstring $(MACHINE),ppc64)) 76TEST_GEN_FILES += protection_keys 77endif 78 79endif 80 81ifneq (,$(filter $(MACHINE),arm64 ia64 mips64 parisc64 ppc64 riscv64 s390x sh64 sparc64 x86_64)) 82TEST_GEN_FILES += va_128TBswitch 83TEST_GEN_FILES += virtual_address_range 84TEST_GEN_FILES += write_to_hugetlbfs 85endif 86 87TEST_PROGS := run_vmtests.sh 88 89TEST_FILES := test_vmalloc.sh 90 91KSFT_KHDR_INSTALL := 1 92include ../lib.mk 93 94ifeq ($(MACHINE),x86_64) 95BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32)) 96BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64)) 97 98define gen-target-rule-32 99$(1) $(1)_32: $(OUTPUT)/$(1)_32 100.PHONY: $(1) $(1)_32 101endef 102 103define gen-target-rule-64 104$(1) $(1)_64: $(OUTPUT)/$(1)_64 105.PHONY: $(1) $(1)_64 106endef 107 108ifeq ($(CAN_BUILD_I386),1) 109$(BINARIES_32): CFLAGS += -m32 -mxsave 110$(BINARIES_32): LDLIBS += -lrt -ldl -lm 111$(BINARIES_32): $(OUTPUT)/%_32: %.c 112 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@ 113$(foreach t,$(TARGETS),$(eval $(call gen-target-rule-32,$(t)))) 114endif 115 116ifeq ($(CAN_BUILD_X86_64),1) 117$(BINARIES_64): CFLAGS += -m64 -mxsave 118$(BINARIES_64): LDLIBS += -lrt -ldl 119$(BINARIES_64): $(OUTPUT)/%_64: %.c 120 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@ 121$(foreach t,$(TARGETS),$(eval $(call gen-target-rule-64,$(t)))) 122endif 123 124# x86_64 users should be encouraged to install 32-bit libraries 125ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01) 126all: warn_32bit_failure 127 128warn_32bit_failure: 129 @echo "Warning: you seem to have a broken 32-bit build" 2>&1; \ 130 echo "environment. This will reduce test coverage of 64-bit" 2>&1; \ 131 echo "kernels. If you are using a Debian-like distribution," 2>&1; \ 132 echo "try:"; 2>&1; \ 133 echo ""; \ 134 echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \ 135 echo ""; \ 136 echo "If you are using a Fedora-like distribution, try:"; \ 137 echo ""; \ 138 echo " yum install glibc-devel.*i686"; \ 139 exit 0; 140endif 141endif 142 143$(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap 144 145# HMM_EXTRA_LIBS may get set in local_config.mk, or it may be left empty. 146$(OUTPUT)/hmm-tests: LDLIBS += $(HMM_EXTRA_LIBS) 147 148$(OUTPUT)/ksm_tests: LDLIBS += -lnuma 149 150local_config.mk local_config.h: check_config.sh 151 /bin/sh ./check_config.sh $(CC) 152 153EXTRA_CLEAN += local_config.mk local_config.h 154 155ifeq ($(HMM_EXTRA_LIBS),) 156all: warn_missing_hugelibs 157 158warn_missing_hugelibs: 159 @echo ; \ 160 echo "Warning: missing libhugetlbfs support. Some HMM tests will be skipped." ; \ 161 echo 162endif 163