1# SPDX-License-Identifier: GPL-2.0
2# Makefile for mm selftests
3
4LOCAL_HDRS += $(selfdir)/mm/local_config.h $(top_srcdir)/mm/gup_test.h
5
6include local_config.mk
7
8ifeq ($(ARCH),)
9
10ifeq ($(CROSS_COMPILE),)
11uname_M := $(shell uname -m 2>/dev/null || echo not)
12else
13uname_M := $(shell echo $(CROSS_COMPILE) | grep -o '^[a-z0-9]\+')
14endif
15ARCH ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/' -e 's/ppc64.*/powerpc/')
16endif
17
18# Without this, failed build products remain, with up-to-date timestamps,
19# thus tricking Make (and you!) into believing that All Is Well, in subsequent
20# make invocations:
21.DELETE_ON_ERROR:
22
23# Avoid accidental wrong builds, due to built-in rules working just a little
24# bit too well--but not quite as well as required for our situation here.
25#
26# In other words, "make $SOME_TEST" is supposed to fail to build at all,
27# because this Makefile only supports either "make" (all), or "make /full/path".
28# However,  the built-in rules, if not suppressed, will pick up CFLAGS and the
29# initial LDLIBS (but not the target-specific LDLIBS, because those are only
30# set for the full path target!). This causes it to get pretty far into building
31# things despite using incorrect values such as an *occasionally* incomplete
32# LDLIBS.
33MAKEFLAGS += --no-builtin-rules
34
35CFLAGS = -Wall -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES)
36LDLIBS = -lrt -lpthread
37
38TEST_GEN_FILES = cow
39TEST_GEN_FILES += compaction_test
40TEST_GEN_FILES += gup_longterm
41TEST_GEN_FILES += gup_test
42TEST_GEN_FILES += hmm-tests
43TEST_GEN_FILES += hugetlb-madvise
44TEST_GEN_FILES += hugetlb-read-hwpoison
45TEST_GEN_FILES += hugepage-mmap
46TEST_GEN_FILES += hugepage-mremap
47TEST_GEN_FILES += hugepage-shm
48TEST_GEN_FILES += hugepage-vmemmap
49TEST_GEN_FILES += khugepaged
50TEST_GEN_FILES += madv_populate
51TEST_GEN_FILES += map_fixed_noreplace
52TEST_GEN_FILES += map_hugetlb
53TEST_GEN_FILES += map_populate
54ifneq (,$(filter $(ARCH),arm64 riscv riscv64 x86 x86_64))
55TEST_GEN_FILES += memfd_secret
56endif
57TEST_GEN_FILES += migration
58TEST_GEN_FILES += mkdirty
59TEST_GEN_FILES += mlock-random-test
60TEST_GEN_FILES += mlock2-tests
61TEST_GEN_FILES += mrelease_test
62TEST_GEN_FILES += mremap_dontunmap
63TEST_GEN_FILES += mremap_test
64TEST_GEN_FILES += on-fault-limit
65TEST_GEN_FILES += thuge-gen
66TEST_GEN_FILES += transhuge-stress
67TEST_GEN_FILES += uffd-stress
68TEST_GEN_FILES += uffd-unit-tests
69TEST_GEN_FILES += split_huge_page_test
70TEST_GEN_FILES += ksm_tests
71TEST_GEN_FILES += ksm_functional_tests
72TEST_GEN_FILES += mdwe_test
73
74ifneq ($(ARCH),arm64)
75TEST_GEN_PROGS += soft-dirty
76endif
77
78ifeq ($(ARCH),x86_64)
79CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_32bit_program.c -m32)
80CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_64bit_program.c)
81CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_program.c -no-pie)
82
83VMTARGETS := protection_keys
84BINARIES_32 := $(VMTARGETS:%=%_32)
85BINARIES_64 := $(VMTARGETS:%=%_64)
86
87ifeq ($(CAN_BUILD_WITH_NOPIE),1)
88CFLAGS += -no-pie
89endif
90
91ifeq ($(CAN_BUILD_I386),1)
92TEST_GEN_FILES += $(BINARIES_32)
93endif
94
95ifeq ($(CAN_BUILD_X86_64),1)
96TEST_GEN_FILES += $(BINARIES_64)
97endif
98else
99
100ifneq (,$(findstring $(ARCH),powerpc))
101TEST_GEN_FILES += protection_keys
102endif
103
104endif
105
106ifneq (,$(filter $(ARCH),arm64 ia64 mips64 parisc64 powerpc riscv64 s390x sparc64 x86_64 s390))
107TEST_GEN_FILES += va_high_addr_switch
108TEST_GEN_FILES += virtual_address_range
109TEST_GEN_FILES += write_to_hugetlbfs
110endif
111
112TEST_PROGS := run_vmtests.sh
113
114TEST_FILES := test_vmalloc.sh
115TEST_FILES += test_hmm.sh
116TEST_FILES += va_high_addr_switch.sh
117
118include ../lib.mk
119
120$(TEST_GEN_PROGS): vm_util.c
121$(TEST_GEN_FILES): vm_util.c
122
123$(OUTPUT)/uffd-stress: uffd-common.c
124$(OUTPUT)/uffd-unit-tests: uffd-common.c
125
126ifeq ($(ARCH),x86_64)
127BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
128BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
129
130define gen-target-rule-32
131$(1) $(1)_32: $(OUTPUT)/$(1)_32
132.PHONY: $(1) $(1)_32
133endef
134
135define gen-target-rule-64
136$(1) $(1)_64: $(OUTPUT)/$(1)_64
137.PHONY: $(1) $(1)_64
138endef
139
140ifeq ($(CAN_BUILD_I386),1)
141$(BINARIES_32): CFLAGS += -m32 -mxsave
142$(BINARIES_32): LDLIBS += -lrt -ldl -lm
143$(BINARIES_32): $(OUTPUT)/%_32: %.c
144	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
145$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-32,$(t))))
146endif
147
148ifeq ($(CAN_BUILD_X86_64),1)
149$(BINARIES_64): CFLAGS += -m64 -mxsave
150$(BINARIES_64): LDLIBS += -lrt -ldl
151$(BINARIES_64): $(OUTPUT)/%_64: %.c
152	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
153$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-64,$(t))))
154endif
155
156# x86_64 users should be encouraged to install 32-bit libraries
157ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
158all: warn_32bit_failure
159
160warn_32bit_failure:
161	@echo "Warning: you seem to have a broken 32-bit build" 2>&1;		\
162	echo  "environment. This will reduce test coverage of 64-bit" 2>&1;	\
163	echo  "kernels. If you are using a Debian-like distribution," 2>&1;	\
164	echo  "try:"; 2>&1;							\
165	echo  "";								\
166	echo  "  apt-get install gcc-multilib libc6-i386 libc6-dev-i386";	\
167	echo  "";								\
168	echo  "If you are using a Fedora-like distribution, try:";		\
169	echo  "";								\
170	echo  "  yum install glibc-devel.*i686";				\
171	exit 0;
172endif
173endif
174
175# IOURING_EXTRA_LIBS may get set in local_config.mk, or it may be left empty.
176$(OUTPUT)/cow: LDLIBS += $(IOURING_EXTRA_LIBS)
177
178$(OUTPUT)/gup_longterm: LDLIBS += $(IOURING_EXTRA_LIBS)
179
180$(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap
181
182$(OUTPUT)/ksm_tests: LDLIBS += -lnuma
183
184$(OUTPUT)/migration: LDLIBS += -lnuma
185
186local_config.mk local_config.h: check_config.sh
187	/bin/sh ./check_config.sh $(CC)
188
189EXTRA_CLEAN += local_config.mk local_config.h
190
191ifeq ($(IOURING_EXTRA_LIBS),)
192all: warn_missing_liburing
193
194warn_missing_liburing:
195	@echo ; \
196	echo "Warning: missing liburing support. Some tests will be skipped." ; \
197	echo
198endif
199