tools/testing/selftests/vm/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 # Makefile for vm selftests
   3 uname_M := $(shell uname -m 2>/dev/null || echo not)
   4 MACHINE ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/')
   5
   6 # Without this, failed build products remain, with up-to-date timestamps,
   7 # thus tricking Make (and you!) into believing that All Is Well, in subsequent
   8 # make invocations:
   9 .DELETE_ON_ERROR:
  10
  11 # Avoid accidental wrong builds, due to built-in rules working just a little
  12 # bit too well--but not quite as well as required for our situation here.
  13 #
  14 # In other words, "make userfaultfd" is supposed to fail to build at all,
  15 # because this Makefile only supports either "make" (all), or "make /full/path".
  16 # However,  the built-in rules, if not suppressed, will pick up CFLAGS and the
  17 # initial LDLIBS (but not the target-specific LDLIBS, because those are only
  18 # set for the full path target!). This causes it to get pretty far into building
  19 # things despite using incorrect values such as an *occasionally* incomplete
  20 # LDLIBS.
  21 MAKEFLAGS += --no-builtin-rules
  22
  23 CFLAGS = -Wall -I ../../../../usr/include $(EXTRA_CFLAGS)
  24 LDLIBS = -lrt
  25 TEST_GEN_FILES = compaction_test
  26 TEST_GEN_FILES += gup_benchmark
  27 TEST_GEN_FILES += hmm-tests
  28 TEST_GEN_FILES += hugepage-mmap
  29 TEST_GEN_FILES += hugepage-shm
  30 TEST_GEN_FILES += map_hugetlb
  31 TEST_GEN_FILES += map_fixed_noreplace
  32 TEST_GEN_FILES += map_populate
  33 TEST_GEN_FILES += mlock-random-test
  34 TEST_GEN_FILES += mlock2-tests
  35 TEST_GEN_FILES += mremap_dontunmap
  36 TEST_GEN_FILES += on-fault-limit
  37 TEST_GEN_FILES += thuge-gen
  38 TEST_GEN_FILES += transhuge-stress
  39 TEST_GEN_FILES += userfaultfd
  40 TEST_GEN_FILES += khugepaged
  41
  42 ifeq ($(ARCH),x86_64)
  43 CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_32bit_program.c -m32)
  44 CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_64bit_program.c)
  45 CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_program.c -no-pie)
  46
  47 TARGETS := protection_keys
  48 BINARIES_32 := $(TARGETS:%=%_32)
  49 BINARIES_64 := $(TARGETS:%=%_64)
  50
  51 ifeq ($(CAN_BUILD_WITH_NOPIE),1)
  52 CFLAGS += -no-pie
  53 endif
  54
  55 ifeq ($(CAN_BUILD_I386),1)
  56 TEST_GEN_FILES += $(BINARIES_32)
  57 endif
  58
  59 ifeq ($(CAN_BUILD_X86_64),1)
  60 TEST_GEN_FILES += $(BINARIES_64)
  61 endif
  62 else
  63
  64 ifneq (,$(findstring $(ARCH),powerpc))
  65 TEST_GEN_FILES += protection_keys
  66 endif
  67
  68 endif
  69
  70 ifneq (,$(filter $(MACHINE),arm64 ia64 mips64 parisc64 ppc64 ppc64le riscv64 s390x sh64 sparc64 x86_64))
  71 TEST_GEN_FILES += va_128TBswitch
  72 TEST_GEN_FILES += virtual_address_range
  73 TEST_GEN_FILES += write_to_hugetlbfs
  74 endif
  75
  76 TEST_PROGS := run_vmtests
  77
  78 TEST_FILES := test_vmalloc.sh
  79
  80 KSFT_KHDR_INSTALL := 1
  81 include ../lib.mk
  82
  83 $(OUTPUT)/hmm-tests: LDLIBS += -lhugetlbfs -lpthread
  84
  85 ifeq ($(ARCH),x86_64)
  86 BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
  87 BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
  88
  89 define gen-target-rule-32
  90 $(1) $(1)_32: $(OUTPUT)/$(1)_32
  91 .PHONY: $(1) $(1)_32
  92 endef
  93
  94 define gen-target-rule-64
  95 $(1) $(1)_64: $(OUTPUT)/$(1)_64
  96 .PHONY: $(1) $(1)_64
  97 endef
  98
  99 ifeq ($(CAN_BUILD_I386),1)
 100 $(BINARIES_32): CFLAGS += -m32
 101 $(BINARIES_32): LDLIBS += -lrt -ldl -lm
 102 $(BINARIES_32): %_32: %.c
 103         $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
 104 $(foreach t,$(TARGETS),$(eval $(call gen-target-rule-32,$(t))))
 105 endif
 106
 107 ifeq ($(CAN_BUILD_X86_64),1)
 108 $(BINARIES_64): CFLAGS += -m64
 109 $(BINARIES_64): LDLIBS += -lrt -ldl
 110 $(BINARIES_64): %_64: %.c
 111         $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
 112 $(foreach t,$(TARGETS),$(eval $(call gen-target-rule-64,$(t))))
 113 endif
 114
 115 # x86_64 users should be encouraged to install 32-bit libraries
 116 ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
 117 all: warn_32bit_failure
 118
 119 warn_32bit_failure:
 120         @echo "Warning: you seem to have a broken 32-bit build" 2>&1;           \
 121         echo  "environment. This will reduce test coverage of 64-bit" 2>&1;     \
 122         echo  "kernels. If you are using a Debian-like distribution," 2>&1;     \
 123         echo  "try:"; 2>&1;                                                     \
 124         echo  "";                                                               \
 125         echo  "  apt-get install gcc-multilib libc6-i386 libc6-dev-i386";       \
 126         echo  "";                                                               \
 127         echo  "If you are using a Fedora-like distribution, try:";              \
 128         echo  "";                                                               \
 129         echo  "  yum install glibc-devel.*i686";                                \
 130         exit 0;
 131 endif
 132 endif
 133
 134 $(OUTPUT)/userfaultfd: LDLIBS += -lpthread
 135
 136 $(OUTPUT)/mlock-random-test: LDLIBS += -lcap