221 lines
7.3 KiB
Makefile
221 lines
7.3 KiB
Makefile
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# This mimics the top-level Makefile. We do it explicitly here so that this
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# Makefile can operate with or without the kbuild infrastructure.
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ifneq ($(LLVM),)
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ifneq ($(filter %/,$(LLVM)),)
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LLVM_PREFIX := $(LLVM)
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else ifneq ($(filter -%,$(LLVM)),)
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LLVM_SUFFIX := $(LLVM)
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endif
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CLANG := $(LLVM_PREFIX)clang$(LLVM_SUFFIX)
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CLANG_TARGET_FLAGS_arm := arm-linux-gnueabi
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CLANG_TARGET_FLAGS_arm64 := aarch64-linux-gnu
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CLANG_TARGET_FLAGS_hexagon := hexagon-linux-musl
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CLANG_TARGET_FLAGS_i386 := i386-linux-gnu
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CLANG_TARGET_FLAGS_m68k := m68k-linux-gnu
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CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu
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CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu
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CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu
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CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu
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CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu
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CLANG_TARGET_FLAGS_x86_64 := x86_64-linux-gnu
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# Default to host architecture if ARCH is not explicitly given.
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ifeq ($(ARCH),)
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CLANG_TARGET_FLAGS := $(shell $(CLANG) -print-target-triple)
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else
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CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(ARCH))
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endif
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ifeq ($(CROSS_COMPILE),)
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ifeq ($(CLANG_TARGET_FLAGS),)
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$(error Specify CROSS_COMPILE or add '--target=' option to lib.mk)
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else
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CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS)
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endif # CLANG_TARGET_FLAGS
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else
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CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%))
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endif # CROSS_COMPILE
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CC := $(CLANG) $(CLANG_FLAGS) -fintegrated-as
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else
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CC := $(CROSS_COMPILE)gcc
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endif # LLVM
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ifeq (0,$(MAKELEVEL))
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ifeq ($(OUTPUT),)
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OUTPUT := $(shell pwd)
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DEFAULT_INSTALL_HDR_PATH := 1
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endif
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endif
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selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
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top_srcdir = $(selfdir)/../../..
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# msg: emit succinct information message describing current building step
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# $1 - generic step name (e.g., CC, LINK, etc);
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# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];
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# $3 - target (assumed to be file); only file name will be emitted;
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# $4 - optional extra arg, emitted as-is, if provided.
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ifeq ($(V),1)
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Q =
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msg =
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else
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Q = @
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msg = @printf ' %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
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MAKEFLAGS += --no-print-directory
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endif
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ifeq ($(KHDR_INCLUDES),)
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KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include
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endif
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# In order to use newer items that haven't yet been added to the user's system
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# header files, add $(TOOLS_INCLUDES) to the compiler invocation in each
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# each selftest.
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# You may need to add files to that location, or to refresh an existing file. In
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# order to do that, run "make headers" from $(top_srcdir), then copy the
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# header file that you want from $(top_srcdir)/usr/include/... , to the matching
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# subdir in $(TOOLS_INCLUDE).
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TOOLS_INCLUDES := -isystem $(top_srcdir)/tools/include/uapi
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# The following are built by lib.mk common compile rules.
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# TEST_CUSTOM_PROGS should be used by tests that require
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# custom build rule and prevent common build rule use.
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# TEST_PROGS are for test shell scripts.
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# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
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# and install targets. Common clean doesn't touch them.
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TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
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TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
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TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
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all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) \
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$(if $(TEST_GEN_MODS_DIR),gen_mods_dir)
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define RUN_TESTS
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BASE_DIR="$(selfdir)"; \
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. $(selfdir)/kselftest/runner.sh; \
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if [ "X$(summary)" != "X" ]; then \
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per_test_logging=1; \
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fi; \
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run_many $(1)
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endef
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define INSTALL_INCLUDES
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$(if $(TEST_INCLUDES), \
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relative_files=""; \
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for entry in $(TEST_INCLUDES); do \
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entry_dir=$$(readlink -e "$$(dirname "$$entry")"); \
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entry_name=$$(basename "$$entry"); \
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relative_dir=$${entry_dir#"$$SRC_PATH"/}; \
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if [ "$$relative_dir" = "$$entry_dir" ]; then \
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echo "Error: TEST_INCLUDES entry \"$$entry\" not located inside selftests directory ($$SRC_PATH)" >&2; \
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exit 1; \
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fi; \
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relative_files="$$relative_files $$relative_dir/$$entry_name"; \
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done; \
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cd $(SRC_PATH) && rsync -aR $$relative_files $(OBJ_PATH)/ \
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)
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endef
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run_tests: all
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ifdef building_out_of_srctree
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@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)$(TEST_GEN_MODS_DIR)" != "X" ]; then \
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rsync -aq --copy-unsafe-links $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(TEST_GEN_MODS_DIR) $(OUTPUT); \
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fi
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@$(INSTALL_INCLUDES)
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@if [ "X$(TEST_PROGS)" != "X" ]; then \
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$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \
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$(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \
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else \
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$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \
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fi
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else
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@$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
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endif
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gen_mods_dir:
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$(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR)
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clean_mods_dir:
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$(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR) clean
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define INSTALL_SINGLE_RULE
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$(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
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$(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST) $(INSTALL_PATH)/)
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endef
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define INSTALL_MODS_RULE
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$(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)/$(INSTALL_LIST))
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$(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST)/*.ko $(INSTALL_PATH)/$(INSTALL_LIST))
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endef
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define INSTALL_RULE
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$(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(notdir $(TEST_GEN_MODS_DIR))) $(INSTALL_MODS_RULE)
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$(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE)
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endef
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install: all
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ifdef INSTALL_PATH
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$(INSTALL_RULE)
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$(INSTALL_INCLUDES)
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else
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$(error Error: set INSTALL_PATH to use install)
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endif
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emit_tests:
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for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
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BASENAME_TEST=`basename $$TEST`; \
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echo "$(COLLECTION):$$BASENAME_TEST"; \
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done
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# define if isn't already. It is undefined in make O= case.
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ifeq ($(RM),)
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RM := rm -f
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endif
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define CLEAN
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$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
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endef
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clean: $(if $(TEST_GEN_MODS_DIR),clean_mods_dir)
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$(CLEAN)
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# Enables to extend CFLAGS and LDFLAGS from command line, e.g.
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# make USERCFLAGS=-Werror USERLDFLAGS=-static
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CFLAGS += $(USERCFLAGS)
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LDFLAGS += $(USERLDFLAGS)
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# When make O= with kselftest target from main level
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# the following aren't defined.
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#
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ifdef building_out_of_srctree
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LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
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COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
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LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
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endif
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# Selftest makefiles can override those targets by setting
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# OVERRIDE_TARGETS = 1.
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ifeq ($(OVERRIDE_TARGETS),)
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LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
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$(OUTPUT)/%:%.c $(LOCAL_HDRS)
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$(call msg,CC,,$@)
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$(Q)$(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
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$(OUTPUT)/%.o:%.S
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$(COMPILE.S) $^ -o $@
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$(OUTPUT)/%:%.S
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$(LINK.S) $^ $(LDLIBS) -o $@
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endif
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.PHONY: run_tests all clean install emit_tests gen_mods_dir clean_mods_dir
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