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 ../../../../usr/include $(EXTRA_CFLAGS) $(KHDR_INCLUDES)
29LDLIBS = -lrt -lpthread
30TEST_GEN_FILES = compaction_test
31TEST_GEN_FILES += gup_test
32TEST_GEN_FILES += hmm-tests
33TEST_GEN_FILES += hugetlb-madvise
34TEST_GEN_FILES += hugepage-mmap
35TEST_GEN_FILES += hugepage-mremap
36TEST_GEN_FILES += hugepage-shm
37TEST_GEN_FILES += hugepage-vmemmap
38TEST_GEN_FILES += khugepaged
39TEST_GEN_FILES += madv_populate
40TEST_GEN_FILES += map_fixed_noreplace
41TEST_GEN_FILES += map_hugetlb
42TEST_GEN_FILES += map_populate
43TEST_GEN_FILES += memfd_secret
44TEST_GEN_FILES += mlock-random-test
45TEST_GEN_FILES += mlock2-tests
46TEST_GEN_FILES += mremap_dontunmap
47TEST_GEN_FILES += mremap_test
48TEST_GEN_FILES += on-fault-limit
49TEST_GEN_FILES += thuge-gen
50TEST_GEN_FILES += transhuge-stress
51TEST_GEN_FILES += userfaultfd
52TEST_GEN_FILES += split_huge_page_test
53TEST_GEN_FILES += ksm_tests
54
55ifeq ($(MACHINE),x86_64)
56CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_32bit_program.c -m32)
57CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_64bit_program.c)
58CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_program.c -no-pie)
59
60TARGETS := protection_keys
61BINARIES_32 := $(TARGETS:%=%_32)
62BINARIES_64 := $(TARGETS:%=%_64)
63
64ifeq ($(CAN_BUILD_WITH_NOPIE),1)
65CFLAGS += -no-pie
66endif
67
68ifeq ($(CAN_BUILD_I386),1)
69TEST_GEN_FILES += $(BINARIES_32)
70endif
71
72ifeq ($(CAN_BUILD_X86_64),1)
73TEST_GEN_FILES += $(BINARIES_64)
74endif
75else
76
77ifneq (,$(findstring $(MACHINE),ppc64))
78TEST_GEN_FILES += protection_keys
79endif
80
81endif
82
83ifneq (,$(filter $(MACHINE),arm64 ia64 mips64 parisc64 ppc64 riscv64 s390x sh64 sparc64 x86_64))
84TEST_GEN_FILES += va_128TBswitch
85TEST_GEN_FILES += virtual_address_range
86TEST_GEN_FILES += write_to_hugetlbfs
87endif
88
89TEST_PROGS := run_vmtests.sh
90
91TEST_FILES := test_vmalloc.sh
92
93KSFT_KHDR_INSTALL := 1
94include ../lib.mk
95
96ifeq ($(MACHINE),x86_64)
97BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
98BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
99
100define gen-target-rule-32
101$(1) $(1)_32: $(OUTPUT)/$(1)_32
102.PHONY: $(1) $(1)_32
103endef
104
105define gen-target-rule-64
106$(1) $(1)_64: $(OUTPUT)/$(1)_64
107.PHONY: $(1) $(1)_64
108endef
109
110ifeq ($(CAN_BUILD_I386),1)
111$(BINARIES_32): CFLAGS += -m32 -mxsave
112$(BINARIES_32): LDLIBS += -lrt -ldl -lm
113$(BINARIES_32): $(OUTPUT)/%_32: %.c
114 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
115$(foreach t,$(TARGETS),$(eval $(call gen-target-rule-32,$(t))))
116endif
117
118ifeq ($(CAN_BUILD_X86_64),1)
119$(BINARIES_64): CFLAGS += -m64 -mxsave
120$(BINARIES_64): LDLIBS += -lrt -ldl
121$(BINARIES_64): $(OUTPUT)/%_64: %.c
122 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
123$(foreach t,$(TARGETS),$(eval $(call gen-target-rule-64,$(t))))
124endif
125
126# x86_64 users should be encouraged to install 32-bit libraries
127ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
128all: warn_32bit_failure
129
130warn_32bit_failure:
131 @echo "Warning: you seem to have a broken 32-bit build" 2>&1; \
132 echo "environment. This will reduce test coverage of 64-bit" 2>&1; \
133 echo "kernels. If you are using a Debian-like distribution," 2>&1; \
134 echo "try:"; 2>&1; \
135 echo ""; \
136 echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
137 echo ""; \
138 echo "If you are using a Fedora-like distribution, try:"; \
139 echo ""; \
140 echo " yum install glibc-devel.*i686"; \
141 exit 0;
142endif
143endif
144
145$(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap
146
147# HMM_EXTRA_LIBS may get set in local_config.mk, or it may be left empty.
148$(OUTPUT)/hmm-tests: LDLIBS += $(HMM_EXTRA_LIBS)
149
150$(OUTPUT)/ksm_tests: LDLIBS += -lnuma
151
152local_config.mk local_config.h: check_config.sh
153 /bin/sh ./check_config.sh $(CC)
154
155EXTRA_CLEAN += local_config.mk local_config.h
156
157ifeq ($(HMM_EXTRA_LIBS),)
158all: warn_missing_hugelibs
159
160warn_missing_hugelibs:
161 @echo ; \
162 echo "Warning: missing libhugetlbfs support. Some HMM tests will be skipped." ; \
163 echo
164endif