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