# SPDX-License-Identifier: GPL-2.0# Makefile for vm selftests include local_config.mk uname_M := $(shell uname -m 2>/dev/null || echo not)MACHINE ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/' -e 's/ppc64.*/ppc64/') # Without this, failed build products remain, with up-to-date timestamps,# thus tricking Make (and you!) into believing that All Is Well, in subsequent# make invocations:.DELETE_ON_ERROR: # Avoid accidental wrong builds, due to built-in rules working just a little# bit too well--but not quite as well as required for our situation here.## In other words, "make userfaultfd" is supposed to fail to build at all,# because this Makefile only supports either "make" (all), or "make /full/path".# However,  the built-in rules, if not suppressed, will pick up CFLAGS and the# initial LDLIBS (but not the target-specific LDLIBS, because those are only# set for the full path target!). This causes it to get pretty far into building# things despite using incorrect values such as an *occasionally* incomplete# LDLIBS.MAKEFLAGS += --no-builtin-rules CFLAGS = -Wall -I ../../../../usr/include $(EXTRA_CFLAGS)LDLIBS = -lrt -lpthreadTEST_GEN_FILES = compaction_testTEST_GEN_FILES += gup_testTEST_GEN_FILES += hmm-testsTEST_GEN_FILES += hugepage-mmapTEST_GEN_FILES += hugepage-shmTEST_GEN_FILES += khugepagedTEST_GEN_FILES += map_fixed_noreplaceTEST_GEN_FILES += map_hugetlbTEST_GEN_FILES += map_populateTEST_GEN_FILES += mlock-random-testTEST_GEN_FILES += mlock2-testsTEST_GEN_FILES += mremap_dontunmapTEST_GEN_FILES += mremap_testTEST_GEN_FILES += on-fault-limitTEST_GEN_FILES += thuge-genTEST_GEN_FILES += transhuge-stressTEST_GEN_FILES += userfaultfdTEST_GEN_FILES += split_huge_page_test ifeq ($(MACHINE),x86_64)CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_32bit_program.c -m32)CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_64bit_program.c)CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_program.c -no-pie) TARGETS := protection_keysBINARIES_32 := $(TARGETS:%=%_32)BINARIES_64 := $(TARGETS:%=%_64) ifeq ($(CAN_BUILD_WITH_NOPIE),1)CFLAGS += -no-pieendif ifeq ($(CAN_BUILD_I386),1)TEST_GEN_FILES += $(BINARIES_32)endif ifeq ($(CAN_BUILD_X86_64),1)TEST_GEN_FILES += $(BINARIES_64)endifelse ifneq (,$(findstring $(MACHINE),ppc64))TEST_GEN_FILES += protection_keysendif endif ifneq (,$(filter $(MACHINE),arm64 ia64 mips64 parisc64 ppc64 riscv64 s390x sh64 sparc64 x86_64))TEST_GEN_FILES += va_128TBswitchTEST_GEN_FILES += virtual_address_rangeTEST_GEN_FILES += write_to_hugetlbfsendif TEST_PROGS := run_vmtests.sh TEST_FILES := test_vmalloc.sh KSFT_KHDR_INSTALL := 1include ../lib.mk ifeq ($(MACHINE),x86_64)BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64)) define gen-target-rule-32$(1) $(1)_32: $(OUTPUT)/$(1)_32.PHONY: $(1) $(1)_32endef define gen-target-rule-64$(1) $(1)_64: $(OUTPUT)/$(1)_64.PHONY: $(1) $(1)_64endef ifeq ($(CAN_BUILD_I386),1)$(BINARIES_32): CFLAGS += -m32$(BINARIES_32): LDLIBS += -lrt -ldl -lm$(BINARIES_32): $(OUTPUT)/%_32: %.c	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@$(foreach t,$(TARGETS),$(eval $(call gen-target-rule-32,$(t))))endif ifeq ($(CAN_BUILD_X86_64),1)$(BINARIES_64): CFLAGS += -m64$(BINARIES_64): LDLIBS += -lrt -ldl$(BINARIES_64): $(OUTPUT)/%_64: %.c	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@$(foreach t,$(TARGETS),$(eval $(call gen-target-rule-64,$(t))))endif # x86_64 users should be encouraged to install 32-bit librariesifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)all: warn_32bit_failure warn_32bit_failure:	@echo "Warning: you seem to have a broken 32-bit build" 2>&1;		\	echo  "environment. This will reduce test coverage of 64-bit" 2>&1;	\	echo  "kernels. If you are using a Debian-like distribution," 2>&1;	\	echo  "try:"; 2>&1;							\	echo  "";								\	echo  "  apt-get install gcc-multilib libc6-i386 libc6-dev-i386";	\	echo  "";								\	echo  "If you are using a Fedora-like distribution, try:";		\	echo  "";								\	echo  "  yum install glibc-devel.*i686";				\	exit 0;endifendif $(OUTPUT)/mlock-random-test: LDLIBS += -lcap $(OUTPUT)/gup_test: ../../../../mm/gup_test.h $(OUTPUT)/hmm-tests: local_config.h # HMM_EXTRA_LIBS may get set in local_config.mk, or it may be left empty.$(OUTPUT)/hmm-tests: LDLIBS += $(HMM_EXTRA_LIBS) local_config.mk local_config.h: check_config.sh	/bin/sh ./check_config.sh $(CC) EXTRA_CLEAN += local_config.mk local_config.h ifeq ($(HMM_EXTRA_LIBS),)all: warn_missing_hugelibs warn_missing_hugelibs:	@echo ; \	echo "Warning: missing libhugetlbfs support. Some HMM tests will be skipped." ; \	echoendif