xref: /linux/tools/testing/selftests/mm/Makefile (revision 8804d970fab45726b3c7cd7f240b31122aa94219)
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
5LOCAL_HDRS += $(selfdir)/mm/mseal_helpers.h
6
7include local_config.mk
8
9ifeq ($(ARCH),)
10
11ifeq ($(CROSS_COMPILE),)
12uname_M := $(shell uname -m 2>/dev/null || echo not)
13else
14uname_M := $(shell echo $(CROSS_COMPILE) | grep -o '^[a-z0-9]\+')
15endif
16ARCH ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/' -e 's/ppc64.*/powerpc/')
17endif
18
19# Without this, failed build products remain, with up-to-date timestamps,
20# thus tricking Make (and you!) into believing that All Is Well, in subsequent
21# make invocations:
22.DELETE_ON_ERROR:
23
24# Avoid accidental wrong builds, due to built-in rules working just a little
25# bit too well--but not quite as well as required for our situation here.
26#
27# In other words, "make $SOME_TEST" is supposed to fail to build at all,
28# because this Makefile only supports either "make" (all), or "make /full/path".
29# However,  the built-in rules, if not suppressed, will pick up CFLAGS and the
30# initial LDLIBS (but not the target-specific LDLIBS, because those are only
31# set for the full path target!). This causes it to get pretty far into building
32# things despite using incorrect values such as an *occasionally* incomplete
33# LDLIBS.
34MAKEFLAGS += --no-builtin-rules
35
36CFLAGS = -Wall -O2 -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES)
37CFLAGS += -Wunreachable-code
38LDLIBS = -lrt -lpthread -lm
39
40# Some distributions (such as Ubuntu) configure GCC so that _FORTIFY_SOURCE is
41# automatically enabled at -O1 or above. This triggers various unused-result
42# warnings where functions such as read() or write() are called and their
43# return value is not checked. Disable _FORTIFY_SOURCE to silence those
44# warnings.
45CFLAGS += -U_FORTIFY_SOURCE
46
47KDIR ?= /lib/modules/$(shell uname -r)/build
48ifneq (,$(wildcard $(KDIR)/Module.symvers))
49ifneq (,$(wildcard $(KDIR)/include/linux/page_frag_cache.h))
50TEST_GEN_MODS_DIR := page_frag
51else
52PAGE_FRAG_WARNING = "missing page_frag_cache.h, please use a newer kernel"
53endif
54else
55PAGE_FRAG_WARNING = "missing Module.symvers, please have the kernel built first"
56endif
57
58TEST_GEN_FILES = cow
59TEST_GEN_FILES += compaction_test
60TEST_GEN_FILES += gup_longterm
61TEST_GEN_FILES += gup_test
62TEST_GEN_FILES += hmm-tests
63TEST_GEN_FILES += hugetlb-madvise
64TEST_GEN_FILES += hugetlb-read-hwpoison
65TEST_GEN_FILES += hugetlb-soft-offline
66TEST_GEN_FILES += hugepage-mmap
67TEST_GEN_FILES += hugepage-mremap
68TEST_GEN_FILES += hugepage-shm
69TEST_GEN_FILES += hugepage-vmemmap
70TEST_GEN_FILES += khugepaged
71TEST_GEN_FILES += madv_populate
72TEST_GEN_FILES += map_fixed_noreplace
73TEST_GEN_FILES += map_hugetlb
74TEST_GEN_FILES += map_populate
75ifneq (,$(filter $(ARCH),arm64 riscv riscv64 x86 x86_64))
76TEST_GEN_FILES += memfd_secret
77endif
78TEST_GEN_FILES += migration
79TEST_GEN_FILES += mkdirty
80TEST_GEN_FILES += mlock-random-test
81TEST_GEN_FILES += mlock2-tests
82TEST_GEN_FILES += mrelease_test
83TEST_GEN_FILES += mremap_dontunmap
84TEST_GEN_FILES += mremap_test
85TEST_GEN_FILES += mseal_test
86TEST_GEN_FILES += on-fault-limit
87TEST_GEN_FILES += pagemap_ioctl
88TEST_GEN_FILES += pfnmap
89TEST_GEN_FILES += process_madv
90TEST_GEN_FILES += prctl_thp_disable
91TEST_GEN_FILES += thuge-gen
92TEST_GEN_FILES += transhuge-stress
93TEST_GEN_FILES += uffd-stress
94TEST_GEN_FILES += uffd-unit-tests
95TEST_GEN_FILES += uffd-wp-mremap
96TEST_GEN_FILES += split_huge_page_test
97TEST_GEN_FILES += ksm_tests
98TEST_GEN_FILES += ksm_functional_tests
99TEST_GEN_FILES += mdwe_test
100TEST_GEN_FILES += hugetlb_fault_after_madv
101TEST_GEN_FILES += hugetlb_madv_vs_map
102TEST_GEN_FILES += hugetlb_dio
103TEST_GEN_FILES += droppable
104TEST_GEN_FILES += guard-regions
105TEST_GEN_FILES += merge
106TEST_GEN_FILES += rmap
107
108ifneq ($(ARCH),arm64)
109TEST_GEN_FILES += soft-dirty
110endif
111
112ifeq ($(ARCH),x86_64)
113CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_32bit_program.c -m32)
114CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_64bit_program.c)
115CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_program.c -no-pie)
116
117VMTARGETS := protection_keys
118VMTARGETS += pkey_sighandler_tests
119BINARIES_32 := $(VMTARGETS:%=%_32)
120BINARIES_64 := $(VMTARGETS:%=%_64)
121
122ifeq ($(CAN_BUILD_WITH_NOPIE),1)
123CFLAGS += -no-pie
124endif
125
126ifeq ($(CAN_BUILD_I386),1)
127TEST_GEN_FILES += $(BINARIES_32)
128endif
129
130ifeq ($(CAN_BUILD_X86_64),1)
131TEST_GEN_FILES += $(BINARIES_64)
132endif
133
134else ifeq ($(ARCH),arm64)
135TEST_GEN_FILES += protection_keys
136TEST_GEN_FILES += pkey_sighandler_tests
137else ifeq ($(ARCH),powerpc)
138TEST_GEN_FILES += protection_keys
139endif
140
141ifneq (,$(filter $(ARCH),arm64 mips64 parisc64 powerpc riscv64 s390x sparc64 x86_64 s390))
142TEST_GEN_FILES += va_high_addr_switch
143ifneq ($(ARCH),riscv64)
144TEST_GEN_FILES += virtual_address_range
145endif
146TEST_GEN_FILES += write_to_hugetlbfs
147endif
148
149TEST_PROGS := run_vmtests.sh
150
151TEST_FILES := test_vmalloc.sh
152TEST_FILES += test_hmm.sh
153TEST_FILES += va_high_addr_switch.sh
154TEST_FILES += charge_reserved_hugetlb.sh
155TEST_FILES += hugetlb_reparenting_test.sh
156TEST_FILES += test_page_frag.sh
157
158# required by charge_reserved_hugetlb.sh
159TEST_FILES += write_hugetlb_memory.sh
160
161include ../lib.mk
162
163$(TEST_GEN_PROGS): vm_util.c thp_settings.c
164$(TEST_GEN_FILES): vm_util.c thp_settings.c
165
166$(OUTPUT)/uffd-stress: uffd-common.c
167$(OUTPUT)/uffd-unit-tests: uffd-common.c
168$(OUTPUT)/uffd-wp-mremap: uffd-common.c
169$(OUTPUT)/protection_keys: pkey_util.c
170$(OUTPUT)/pkey_sighandler_tests: pkey_util.c
171
172ifeq ($(ARCH),x86_64)
173BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
174BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
175
176$(BINARIES_32) $(BINARIES_64): pkey_util.c
177
178define gen-target-rule-32
179$(1) $(1)_32: $(OUTPUT)/$(1)_32
180.PHONY: $(1) $(1)_32
181endef
182
183define gen-target-rule-64
184$(1) $(1)_64: $(OUTPUT)/$(1)_64
185.PHONY: $(1) $(1)_64
186endef
187
188ifeq ($(CAN_BUILD_I386),1)
189$(BINARIES_32): CFLAGS += -m32 -mxsave
190$(BINARIES_32): LDLIBS += -lrt -ldl -lm
191$(BINARIES_32): $(OUTPUT)/%_32: %.c
192	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
193$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-32,$(t))))
194endif
195
196ifeq ($(CAN_BUILD_X86_64),1)
197$(BINARIES_64): CFLAGS += -m64 -mxsave
198$(BINARIES_64): LDLIBS += -lrt -ldl
199$(BINARIES_64): $(OUTPUT)/%_64: %.c
200	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
201$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-64,$(t))))
202endif
203
204# x86_64 users should be encouraged to install 32-bit libraries
205ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
206all: warn_32bit_failure
207
208warn_32bit_failure:
209	@echo "Warning: you seem to have a broken 32-bit build" 2>&1;		\
210	echo  "environment. This will reduce test coverage of 64-bit" 2>&1;	\
211	echo  "kernels. If you are using a Debian-like distribution," 2>&1;	\
212	echo  "try:"; 2>&1;							\
213	echo  "";								\
214	echo  "  apt-get install gcc-multilib libc6-i386 libc6-dev-i386";	\
215	echo  "";								\
216	echo  "If you are using a Fedora-like distribution, try:";		\
217	echo  "";								\
218	echo  "  yum install glibc-devel.*i686";				\
219	exit 0;
220endif
221endif
222
223# IOURING_EXTRA_LIBS may get set in local_config.mk, or it may be left empty.
224$(OUTPUT)/cow: LDLIBS += $(IOURING_EXTRA_LIBS)
225
226$(OUTPUT)/gup_longterm: LDLIBS += $(IOURING_EXTRA_LIBS)
227
228$(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap
229
230$(OUTPUT)/ksm_tests: LDLIBS += -lnuma
231
232$(OUTPUT)/migration: LDLIBS += -lnuma
233
234$(OUTPUT)/rmap: LDLIBS += -lnuma
235
236local_config.mk local_config.h: check_config.sh
237	/bin/sh ./check_config.sh $(CC)
238
239EXTRA_CLEAN += local_config.mk local_config.h
240
241ifeq ($(IOURING_EXTRA_LIBS),)
242all: warn_missing_liburing
243
244warn_missing_liburing:
245	@echo ; \
246	echo "Warning: missing liburing support. Some tests will be skipped." ; \
247	echo
248endif
249
250ifneq ($(PAGE_FRAG_WARNING),)
251all: warn_missing_page_frag
252
253warn_missing_page_frag:
254	@echo ; \
255	echo "Warning: $(PAGE_FRAG_WARNING). page_frag test will be skipped." ; \
256	echo
257endif
258