Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0
2# Makefile for vm selftests
3
4LOCAL_HDRS += $(selfdir)/vm/local_config.h $(top_srcdir)/mm/gup_test.h
5
6include local_config.mk
7
8uname_M := $(shell uname -m 2>/dev/null || echo not)
9MACHINE ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/' -e 's/ppc64.*/ppc64/')
10
11# Without this, failed build products remain, with up-to-date timestamps,
12# thus tricking Make (and you!) into believing that All Is Well, in subsequent
13# make invocations:
14.DELETE_ON_ERROR:
15
16# Avoid accidental wrong builds, due to built-in rules working just a little
17# bit too well--but not quite as well as required for our situation here.
18#
19# In other words, "make userfaultfd" is supposed to fail to build at all,
20# because this Makefile only supports either "make" (all), or "make /full/path".
21# However, the built-in rules, if not suppressed, will pick up CFLAGS and the
22# initial LDLIBS (but not the target-specific LDLIBS, because those are only
23# set for the full path target!). This causes it to get pretty far into building
24# things despite using incorrect values such as an *occasionally* incomplete
25# LDLIBS.
26MAKEFLAGS += --no-builtin-rules
27
28CFLAGS = -Wall -I $(top_srcdir) -I $(top_srcdir)/usr/include $(EXTRA_CFLAGS) $(KHDR_INCLUDES)
29LDLIBS = -lrt -lpthread
30TEST_GEN_FILES = cow
31TEST_GEN_FILES += compaction_test
32TEST_GEN_FILES += gup_test
33TEST_GEN_FILES += hmm-tests
34TEST_GEN_FILES += hugetlb-madvise
35TEST_GEN_FILES += hugepage-mmap
36TEST_GEN_FILES += hugepage-mremap
37TEST_GEN_FILES += hugepage-shm
38TEST_GEN_FILES += hugepage-vmemmap
39TEST_GEN_FILES += khugepaged
40TEST_GEN_PROGS = madv_populate
41TEST_GEN_FILES += map_fixed_noreplace
42TEST_GEN_FILES += map_hugetlb
43TEST_GEN_FILES += map_populate
44TEST_GEN_FILES += memfd_secret
45TEST_GEN_FILES += migration
46TEST_GEN_FILES += mlock-random-test
47TEST_GEN_FILES += mlock2-tests
48TEST_GEN_FILES += mrelease_test
49TEST_GEN_FILES += mremap_dontunmap
50TEST_GEN_FILES += mremap_test
51TEST_GEN_FILES += on-fault-limit
52TEST_GEN_FILES += thuge-gen
53TEST_GEN_FILES += transhuge-stress
54TEST_GEN_FILES += userfaultfd
55TEST_GEN_PROGS += soft-dirty
56TEST_GEN_PROGS += split_huge_page_test
57TEST_GEN_FILES += ksm_tests
58TEST_GEN_PROGS += ksm_functional_tests
59
60ifeq ($(MACHINE),x86_64)
61CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_32bit_program.c -m32)
62CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_64bit_program.c)
63CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_program.c -no-pie)
64
65VMTARGETS := protection_keys
66BINARIES_32 := $(VMTARGETS:%=%_32)
67BINARIES_64 := $(VMTARGETS:%=%_64)
68
69ifeq ($(CAN_BUILD_WITH_NOPIE),1)
70CFLAGS += -no-pie
71endif
72
73ifeq ($(CAN_BUILD_I386),1)
74TEST_GEN_FILES += $(BINARIES_32)
75endif
76
77ifeq ($(CAN_BUILD_X86_64),1)
78TEST_GEN_FILES += $(BINARIES_64)
79endif
80else
81
82ifneq (,$(findstring $(MACHINE),ppc64))
83TEST_GEN_FILES += protection_keys
84endif
85
86endif
87
88ifneq (,$(filter $(MACHINE),arm64 ia64 mips64 parisc64 ppc64 riscv64 s390x sh64 sparc64 x86_64))
89TEST_GEN_FILES += va_128TBswitch
90TEST_GEN_FILES += virtual_address_range
91TEST_GEN_FILES += write_to_hugetlbfs
92endif
93
94TEST_PROGS := run_vmtests.sh
95
96TEST_FILES := test_vmalloc.sh
97TEST_FILES += test_hmm.sh
98TEST_FILES += va_128TBswitch.sh
99
100include ../lib.mk
101
102$(OUTPUT)/cow: vm_util.c
103$(OUTPUT)/khugepaged: vm_util.c
104$(OUTPUT)/ksm_functional_tests: vm_util.c
105$(OUTPUT)/madv_populate: vm_util.c
106$(OUTPUT)/soft-dirty: vm_util.c
107$(OUTPUT)/split_huge_page_test: vm_util.c
108$(OUTPUT)/userfaultfd: vm_util.c
109
110ifeq ($(MACHINE),x86_64)
111BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
112BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
113
114define gen-target-rule-32
115$(1) $(1)_32: $(OUTPUT)/$(1)_32
116.PHONY: $(1) $(1)_32
117endef
118
119define gen-target-rule-64
120$(1) $(1)_64: $(OUTPUT)/$(1)_64
121.PHONY: $(1) $(1)_64
122endef
123
124ifeq ($(CAN_BUILD_I386),1)
125$(BINARIES_32): CFLAGS += -m32 -mxsave
126$(BINARIES_32): LDLIBS += -lrt -ldl -lm
127$(BINARIES_32): $(OUTPUT)/%_32: %.c
128 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
129$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-32,$(t))))
130endif
131
132ifeq ($(CAN_BUILD_X86_64),1)
133$(BINARIES_64): CFLAGS += -m64 -mxsave
134$(BINARIES_64): LDLIBS += -lrt -ldl
135$(BINARIES_64): $(OUTPUT)/%_64: %.c
136 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
137$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-64,$(t))))
138endif
139
140# x86_64 users should be encouraged to install 32-bit libraries
141ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
142all: warn_32bit_failure
143
144warn_32bit_failure:
145 @echo "Warning: you seem to have a broken 32-bit build" 2>&1; \
146 echo "environment. This will reduce test coverage of 64-bit" 2>&1; \
147 echo "kernels. If you are using a Debian-like distribution," 2>&1; \
148 echo "try:"; 2>&1; \
149 echo ""; \
150 echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
151 echo ""; \
152 echo "If you are using a Fedora-like distribution, try:"; \
153 echo ""; \
154 echo " yum install glibc-devel.*i686"; \
155 exit 0;
156endif
157endif
158
159# cow_EXTRA_LIBS may get set in local_config.mk, or it may be left empty.
160$(OUTPUT)/cow: LDLIBS += $(COW_EXTRA_LIBS)
161
162$(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap
163
164$(OUTPUT)/ksm_tests: LDLIBS += -lnuma
165
166$(OUTPUT)/migration: LDLIBS += -lnuma
167
168local_config.mk local_config.h: check_config.sh
169 /bin/sh ./check_config.sh $(CC)
170
171EXTRA_CLEAN += local_config.mk local_config.h
172
173ifeq ($(COW_EXTRA_LIBS),)
174all: warn_missing_liburing
175
176warn_missing_liburing:
177 @echo ; \
178 echo "Warning: missing liburing support. Some COW tests will be skipped." ; \
179 echo
180endif