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