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