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_m68k := m68k-linux-gnu
14 CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu
15 CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu
16 CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu
17 CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu
18 CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu
19 CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(ARCH))
21 ifeq ($(CROSS_COMPILE),)
22 ifeq ($(CLANG_TARGET_FLAGS),)
23 $(error Specify CROSS_COMPILE or add '--target=' option to lib.mk)
25 CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS)
26 endif # CLANG_TARGET_FLAGS
28 CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%))
31 CC := $(LLVM_PREFIX)clang$(LLVM_SUFFIX) $(CLANG_FLAGS) -fintegrated-as
33 CC := $(CROSS_COMPILE)gcc
38 OUTPUT := $(shell pwd)
39 DEFAULT_INSTALL_HDR_PATH := 1
42 selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
43 top_srcdir = $(selfdir)/../../..
45 ifeq ($(KHDR_INCLUDES),)
46 KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include
49 # The following are built by lib.mk common compile rules.
50 # TEST_CUSTOM_PROGS should be used by tests that require
51 # custom build rule and prevent common build rule use.
52 # TEST_PROGS are for test shell scripts.
53 # TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
54 # and install targets. Common clean doesn't touch them.
55 TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
56 TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
57 TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
59 all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
62 BASE_DIR="$(selfdir)"; \
63 . $(selfdir)/kselftest/runner.sh; \
64 if [ "X$(summary)" != "X" ]; then \
71 ifdef building_out_of_srctree
72 @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \
73 rsync -aLq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \
75 @if [ "X$(TEST_PROGS)" != "X" ]; then \
76 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \
77 $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \
79 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \
82 @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
85 define INSTALL_SINGLE_RULE
86 $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
87 $(if $(INSTALL_LIST),rsync -aL $(INSTALL_LIST) $(INSTALL_PATH)/)
91 $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE)
92 $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
93 $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE)
94 $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE)
95 $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE)
96 $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
97 $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE)
98 $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE)
105 $(error Error: set INSTALL_PATH to use install)
109 for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
110 BASENAME_TEST=`basename $$TEST`; \
111 echo "$(COLLECTION):$$BASENAME_TEST"; \
114 # define if isn't already. It is undefined in make O= case.
120 $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
126 # Enables to extend CFLAGS and LDFLAGS from command line, e.g.
127 # make USERCFLAGS=-Werror USERLDFLAGS=-static
128 CFLAGS += $(USERCFLAGS)
129 LDFLAGS += $(USERLDFLAGS)
131 # When make O= with kselftest target from main level
132 # the following aren't defined.
134 ifdef building_out_of_srctree
135 LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
136 COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
137 LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
140 # Selftest makefiles can override those targets by setting
141 # OVERRIDE_TARGETS = 1.
142 ifeq ($(OVERRIDE_TARGETS),)
143 LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
144 $(OUTPUT)/%:%.c $(LOCAL_HDRS)
145 $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
148 $(COMPILE.S) $^ -o $@
151 $(LINK.S) $^ $(LDLIBS) -o $@
154 .PHONY: run_tests all clean install emit_tests