1 # This mimics the top-level Makefile. We do it explicitly here so that this
2 # Makefile can operate with or without the kbuild infrastructure.
4 ifneq ($(filter %/,$(LLVM)),)
6 else ifneq ($(filter -%,$(LLVM)),)
10 CLANG_TARGET_FLAGS_arm := arm-linux-gnueabi
11 CLANG_TARGET_FLAGS_arm64 := aarch64-linux-gnu
12 CLANG_TARGET_FLAGS_hexagon := hexagon-linux-musl
13 CLANG_TARGET_FLAGS_i386 := i386-linux-gnu
14 CLANG_TARGET_FLAGS_m68k := m68k-linux-gnu
15 CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu
16 CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu
17 CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu
18 CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu
19 CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu
20 CLANG_TARGET_FLAGS_x86_64 := x86_64-linux-gnu
21 CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(ARCH))
23 ifeq ($(CROSS_COMPILE),)
24 ifeq ($(CLANG_TARGET_FLAGS),)
25 $(error Specify CROSS_COMPILE or add '--target=' option to lib.mk)
27 CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS)
28 endif # CLANG_TARGET_FLAGS
30 CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%))
33 CC := $(LLVM_PREFIX)clang$(LLVM_SUFFIX) $(CLANG_FLAGS) -fintegrated-as
35 CC := $(CROSS_COMPILE)gcc
40 OUTPUT := $(shell pwd)
41 DEFAULT_INSTALL_HDR_PATH := 1
44 selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
45 top_srcdir = $(selfdir)/../../..
47 ifeq ($(KHDR_INCLUDES),)
48 KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include
51 # The following are built by lib.mk common compile rules.
52 # TEST_CUSTOM_PROGS should be used by tests that require
53 # custom build rule and prevent common build rule use.
54 # TEST_PROGS are for test shell scripts.
55 # TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
56 # and install targets. Common clean doesn't touch them.
57 TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
58 TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
59 TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
61 all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) \
62 $(if $(TEST_GEN_MODS_DIR),gen_mods_dir)
65 BASE_DIR="$(selfdir)"; \
66 . $(selfdir)/kselftest/runner.sh; \
67 if [ "X$(summary)" != "X" ]; then \
74 ifdef building_out_of_srctree
75 @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)$(TEST_GEN_MODS_DIR)" != "X" ]; then \
76 rsync -aq --copy-unsafe-links $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(TEST_GEN_MODS_DIR) $(OUTPUT); \
78 @if [ "X$(TEST_PROGS)" != "X" ]; then \
79 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \
80 $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \
82 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \
85 @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
89 $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR)
92 $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR) clean
94 define INSTALL_SINGLE_RULE
95 $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
96 $(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST) $(INSTALL_PATH)/)
99 define INSTALL_MODS_RULE
100 $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)/$(INSTALL_LIST))
101 $(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST)/*.ko $(INSTALL_PATH)/$(INSTALL_LIST))
105 $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE)
106 $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
107 $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE)
108 $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE)
109 $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE)
110 $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
111 $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE)
112 $(eval INSTALL_LIST = $(notdir $(TEST_GEN_MODS_DIR))) $(INSTALL_MODS_RULE)
113 $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE)
120 $(error Error: set INSTALL_PATH to use install)
124 for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
125 BASENAME_TEST=`basename $$TEST`; \
126 echo "$(COLLECTION):$$BASENAME_TEST"; \
129 # define if isn't already. It is undefined in make O= case.
135 $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
138 clean: $(if $(TEST_GEN_MODS_DIR),clean_mods_dir)
141 # Enables to extend CFLAGS and LDFLAGS from command line, e.g.
142 # make USERCFLAGS=-Werror USERLDFLAGS=-static
143 CFLAGS += $(USERCFLAGS)
144 LDFLAGS += $(USERLDFLAGS)
146 # When make O= with kselftest target from main level
147 # the following aren't defined.
149 ifdef building_out_of_srctree
150 LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
151 COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
152 LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
155 # Selftest makefiles can override those targets by setting
156 # OVERRIDE_TARGETS = 1.
157 ifeq ($(OVERRIDE_TARGETS),)
158 LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
159 $(OUTPUT)/%:%.c $(LOCAL_HDRS)
160 $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
163 $(COMPILE.S) $^ -o $@
166 $(LINK.S) $^ $(LDLIBS) -o $@
169 .PHONY: run_tests all clean install emit_tests gen_mods_dir clean_mods_dir