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/' -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.
  24 MAKEFLAGS += --no-builtin-rules
  25
  26 CFLAGS = -Wall -I ../../../../usr/include $(EXTRA_CFLAGS)
  27 LDLIBS = -lrt -lpthread
  28 TEST_GEN_FILES = compaction_test
  29 TEST_GEN_FILES += gup_test
  30 TEST_GEN_FILES += hmm-tests
  31 TEST_GEN_FILES += hugepage-mmap
  32 TEST_GEN_FILES += hugepage-mremap
  33 TEST_GEN_FILES += hugepage-shm
  34 TEST_GEN_FILES += khugepaged
  35 TEST_GEN_FILES += madv_populate
  36 TEST_GEN_FILES += map_fixed_noreplace
  37 TEST_GEN_FILES += map_hugetlb
  38 TEST_GEN_FILES += map_populate
  39 TEST_GEN_FILES += memfd_secret
  40 TEST_GEN_FILES += mlock-random-test
  41 TEST_GEN_FILES += mlock2-tests
  42 TEST_GEN_FILES += mremap_dontunmap
  43 TEST_GEN_FILES += mremap_test
  44 TEST_GEN_FILES += on-fault-limit
  45 TEST_GEN_FILES += thuge-gen
  46 TEST_GEN_FILES += transhuge-stress
  47 TEST_GEN_FILES += userfaultfd
  48 TEST_GEN_FILES += split_huge_page_test
  49 TEST_GEN_FILES += ksm_tests
  50
  51 ifeq ($(MACHINE),x86_64)
  52 CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_32bit_program.c -m32)
  53 CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_64bit_program.c)
  54 CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_program.c -no-pie)
  55
  56 TARGETS := protection_keys
  57 BINARIES_32 := $(TARGETS:%=%_32)
  58 BINARIES_64 := $(TARGETS:%=%_64)
  59
  60 ifeq ($(CAN_BUILD_WITH_NOPIE),1)
  61 CFLAGS += -no-pie
  62 endif
  63
  64 ifeq ($(CAN_BUILD_I386),1)
  65 TEST_GEN_FILES += $(BINARIES_32)
  66 endif
  67
  68 ifeq ($(CAN_BUILD_X86_64),1)
  69 TEST_GEN_FILES += $(BINARIES_64)
  70 endif
  71 else
  72
  73 ifneq (,$(findstring $(MACHINE),ppc64))
  74 TEST_GEN_FILES += protection_keys
  75 endif
  76
  77 endif
  78
  79 ifneq (,$(filter $(MACHINE),arm64 ia64 mips64 parisc64 ppc64 riscv64 s390x sh64 sparc64 x86_64))
  80 TEST_GEN_FILES += va_128TBswitch
  81 TEST_GEN_FILES += virtual_address_range
  82 TEST_GEN_FILES += write_to_hugetlbfs
  83 endif
  84
  85 TEST_PROGS := run_vmtests.sh
  86
  87 TEST_FILES := test_vmalloc.sh
  88
  89 KSFT_KHDR_INSTALL := 1
  90 include ../lib.mk
  91
  92 ifeq ($(MACHINE),x86_64)
  93 BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
  94 BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
  95
  96 define gen-target-rule-32
  97 $(1) $(1)_32: $(OUTPUT)/$(1)_32
  98 .PHONY: $(1) $(1)_32
  99 endef
 100
 101 define gen-target-rule-64
 102 $(1) $(1)_64: $(OUTPUT)/$(1)_64
 103 .PHONY: $(1) $(1)_64
 104 endef
 105
 106 ifeq ($(CAN_BUILD_I386),1)
 107 $(BINARIES_32): CFLAGS += -m32 -mxsave
 108 $(BINARIES_32): LDLIBS += -lrt -ldl -lm
 109 $(BINARIES_32): $(OUTPUT)/%_32: %.c
 110         $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
 111 $(foreach t,$(TARGETS),$(eval $(call gen-target-rule-32,$(t))))
 112 endif
 113
 114 ifeq ($(CAN_BUILD_X86_64),1)
 115 $(BINARIES_64): CFLAGS += -m64 -mxsave
 116 $(BINARIES_64): LDLIBS += -lrt -ldl
 117 $(BINARIES_64): $(OUTPUT)/%_64: %.c
 118         $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
 119 $(foreach t,$(TARGETS),$(eval $(call gen-target-rule-64,$(t))))
 120 endif
 121
 122 # x86_64 users should be encouraged to install 32-bit libraries
 123 ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
 124 all: warn_32bit_failure
 125
 126 warn_32bit_failure:
 127         @echo "Warning: you seem to have a broken 32-bit build" 2>&1;           \
 128         echo  "environment. This will reduce test coverage of 64-bit" 2>&1;     \
 129         echo  "kernels. If you are using a Debian-like distribution," 2>&1;     \
 130         echo  "try:"; 2>&1;                                                     \
 131         echo  "";                                                               \
 132         echo  "  apt-get install gcc-multilib libc6-i386 libc6-dev-i386";       \
 133         echo  "";                                                               \
 134         echo  "If you are using a Fedora-like distribution, try:";              \
 135         echo  "";                                                               \
 136         echo  "  yum install glibc-devel.*i686";                                \
 137         exit 0;
 138 endif
 139 endif
 140
 141 $(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap
 142
 143 $(OUTPUT)/gup_test: ../../../../mm/gup_test.h
 144
 145 $(OUTPUT)/hmm-tests: local_config.h
 146
 147 # HMM_EXTRA_LIBS may get set in local_config.mk, or it may be left empty.
 148 $(OUTPUT)/hmm-tests: LDLIBS += $(HMM_EXTRA_LIBS)
 149
 150 $(OUTPUT)/ksm_tests: LDLIBS += -lnuma
 151
 152 local_config.mk local_config.h: check_config.sh
 153         /bin/sh ./check_config.sh $(CC)
 154
 155 EXTRA_CLEAN += local_config.mk local_config.h
 156
 157 ifeq ($(HMM_EXTRA_LIBS),)
 158 all: warn_missing_hugelibs
 159
 160 warn_missing_hugelibs:
 161         @echo ; \
 162         echo "Warning: missing libhugetlbfs support. Some HMM tests will be skipped." ; \
 163         echo
 164 endif