tools/testing/selftests/vm/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 # Makefile for vm selftests
   3
   4 include local_config.mk
   5
   6 uname_M := $(shell uname -m 2>/dev/null || echo not)
   7 MACHINE ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/')
   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.
  24 MAKEFLAGS += --no-builtin-rules
  25
  26 CFLAGS = -Wall -I ../../../../usr/include $(EXTRA_CFLAGS)
  27 LDLIBS = -lrt -lpthread
  28 TEST_GEN_FILES = compaction_test
  29 TEST_GEN_FILES += gup_test
  30 TEST_GEN_FILES += hmm-tests
  31 TEST_GEN_FILES += hugepage-mmap
  32 TEST_GEN_FILES += hugepage-shm
  33 TEST_GEN_FILES += khugepaged
  34 TEST_GEN_FILES += map_fixed_noreplace
  35 TEST_GEN_FILES += map_hugetlb
  36 TEST_GEN_FILES += map_populate
  37 TEST_GEN_FILES += mlock-random-test
  38 TEST_GEN_FILES += mlock2-tests
  39 TEST_GEN_FILES += mremap_dontunmap
  40 TEST_GEN_FILES += on-fault-limit
  41 TEST_GEN_FILES += thuge-gen
  42 TEST_GEN_FILES += transhuge-stress
  43 TEST_GEN_FILES += userfaultfd
  44
  45 ifeq ($(ARCH),x86_64)
  46 CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_32bit_program.c -m32)
  47 CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_64bit_program.c)
  48 CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_program.c -no-pie)
  49
  50 TARGETS := protection_keys
  51 BINARIES_32 := $(TARGETS:%=%_32)
  52 BINARIES_64 := $(TARGETS:%=%_64)
  53
  54 ifeq ($(CAN_BUILD_WITH_NOPIE),1)
  55 CFLAGS += -no-pie
  56 endif
  57
  58 ifeq ($(CAN_BUILD_I386),1)
  59 TEST_GEN_FILES += $(BINARIES_32)
  60 endif
  61
  62 ifeq ($(CAN_BUILD_X86_64),1)
  63 TEST_GEN_FILES += $(BINARIES_64)
  64 endif
  65 else
  66
  67 ifneq (,$(findstring $(ARCH),powerpc))
  68 TEST_GEN_FILES += protection_keys
  69 endif
  70
  71 endif
  72
  73 ifneq (,$(filter $(MACHINE),arm64 ia64 mips64 parisc64 ppc64 ppc64le riscv64 s390x sh64 sparc64 x86_64))
  74 TEST_GEN_FILES += va_128TBswitch
  75 TEST_GEN_FILES += virtual_address_range
  76 TEST_GEN_FILES += write_to_hugetlbfs
  77 endif
  78
  79 TEST_PROGS := run_vmtests.sh
  80
  81 TEST_FILES := test_vmalloc.sh
  82
  83 KSFT_KHDR_INSTALL := 1
  84 include ../lib.mk
  85
  86 ifeq ($(ARCH),x86_64)
  87 BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
  88 BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
  89
  90 define gen-target-rule-32
  91 $(1) $(1)_32: $(OUTPUT)/$(1)_32
  92 .PHONY: $(1) $(1)_32
  93 endef
  94
  95 define gen-target-rule-64
  96 $(1) $(1)_64: $(OUTPUT)/$(1)_64
  97 .PHONY: $(1) $(1)_64
  98 endef
  99
 100 ifeq ($(CAN_BUILD_I386),1)
 101 $(BINARIES_32): CFLAGS += -m32
 102 $(BINARIES_32): LDLIBS += -lrt -ldl -lm
 103 $(BINARIES_32): %_32: %.c
 104         $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
 105 $(foreach t,$(TARGETS),$(eval $(call gen-target-rule-32,$(t))))
 106 endif
 107
 108 ifeq ($(CAN_BUILD_X86_64),1)
 109 $(BINARIES_64): CFLAGS += -m64
 110 $(BINARIES_64): LDLIBS += -lrt -ldl
 111 $(BINARIES_64): %_64: %.c
 112         $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
 113 $(foreach t,$(TARGETS),$(eval $(call gen-target-rule-64,$(t))))
 114 endif
 115
 116 # x86_64 users should be encouraged to install 32-bit libraries
 117 ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
 118 all: warn_32bit_failure
 119
 120 warn_32bit_failure:
 121         @echo "Warning: you seem to have a broken 32-bit build" 2>&1;           \
 122         echo  "environment. This will reduce test coverage of 64-bit" 2>&1;     \
 123         echo  "kernels. If you are using a Debian-like distribution," 2>&1;     \
 124         echo  "try:"; 2>&1;                                                     \
 125         echo  "";                                                               \
 126         echo  "  apt-get install gcc-multilib libc6-i386 libc6-dev-i386";       \
 127         echo  "";                                                               \
 128         echo  "If you are using a Fedora-like distribution, try:";              \
 129         echo  "";                                                               \
 130         echo  "  yum install glibc-devel.*i686";                                \
 131         exit 0;
 132 endif
 133 endif
 134
 135 $(OUTPUT)/mlock-random-test: LDLIBS += -lcap
 136
 137 $(OUTPUT)/gup_test: ../../../../mm/gup_test.h
 138
 139 $(OUTPUT)/hmm-tests: local_config.h
 140
 141 # HMM_EXTRA_LIBS may get set in local_config.mk, or it may be left empty.
 142 $(OUTPUT)/hmm-tests: LDLIBS += $(HMM_EXTRA_LIBS)
 143
 144 local_config.mk local_config.h: check_config.sh
 145         /bin/sh ./check_config.sh $(CC)
 146
 147 EXTRA_CLEAN += local_config.mk local_config.h
 148
 149 ifeq ($(HMM_EXTRA_LIBS),)
 150 all: warn_missing_hugelibs
 151
 152 warn_missing_hugelibs:
 153         @echo ; \
 154         echo "Warning: missing libhugetlbfs support. Some HMM tests will be skipped." ; \
 155         echo
 156 endif