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make: kconfig: use fixdep to enable incremental compilation

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This commit is contained in:
Cenk Gündoğan 2020-07-29 16:22:23 +02:00
parent f49eb4305c
commit 132b7328e3
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GPG Key ID: A3DBC2F744D484D2
2 changed files with 30 additions and 15 deletions
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27
Makefile.base
View File

@ -107,33 +107,46 @@ $(OBJC_LTO): CFLAGS+=$(LTOFLAGS)
# Define dependencies for object files
OBJ_DEPS += $(RIOTBUILD_CONFIG_HEADER_C)
ifneq (,$(SHOULD_RUN_KCONFIG))
OBJ_DEPS += $(KCONFIG_GENERATED_AUTOCONF_HEADER_C)
endif
$(OBJC): $(BINDIR)/$(MODULE)/%.o: %.c $(OBJ_DEPS)
$(OBJC): $(BINDIR)/$(MODULE)/%.o: %.c $(OBJ_DEPS) | $(if $(SHOULD_RUN_KCONFIG),$(KCONFIG_GENERATED_AUTOCONF_HEADER_C))
$(Q)$(CCACHE) $(CC) \
-DRIOT_FILE_RELATIVE=\"$(patsubst $(RIOTBASE)/%,%,$(abspath $<))\" \
-DRIOT_FILE_NOPATH=\"$(notdir $<)\" \
$(CFLAGS) $(INCLUDES) -MQ '$@' -MD -MP -c -o $@ $(abspath $<)
ifneq (,$(SHOULD_RUN_KCONFIG))
$(Q)$(FIXDEP) $(@:.o=.d) $@ $(KCONFIG_SYNC_DIR) > $(@:.o=.tmp)
$(Q)mv $(@:.o=.tmp) $(@:.o=.d)
endif
$(GENOBJC): %.o: %.c $(OBJ_DEPS)
$(GENOBJC): %.o: %.c $(OBJ_DEPS) | $(if $(SHOULD_RUN_KCONFIG),$(KCONFIG_GENERATED_AUTOCONF_HEADER_C))
$(Q) $(CCACHE) $(CC) \
-DRIOT_FILE_RELATIVE=\"$(patsubst $(RIOTBASE)/%,%,$<)\" \
-DRIOT_FILE_NOPATH=\"$(notdir $<)\" \
$(CFLAGS) $(INCLUDES) -MQ '$@' -MD -MP -c -o $@ $<
ifneq (,$(SHOULD_RUN_KCONFIG))
$(Q)$(FIXDEP) $(@:.o=.d) $@ $(KCONFIG_SYNC_DIR) > $(@:.o=.tmp)
$(Q)mv $(@:.o=.tmp) $(@:.o=.d)
endif
$(OBJCXX): $(BINDIR)/$(MODULE)/%.o: %.$(SRCXXEXT) $(OBJ_DEPS)
$(OBJCXX): $(BINDIR)/$(MODULE)/%.o: %.$(SRCXXEXT) $(OBJ_DEPS) | $(if $(SHOULD_RUN_KCONFIG),$(KCONFIG_GENERATED_AUTOCONF_HEADER_C))
$(Q)$(CCACHE) $(CXX) \
-DRIOT_FILE_RELATIVE=\"$(patsubst $(RIOTBASE)/%,%,$(abspath $<))\" \
-DRIOT_FILE_NOPATH=\"$(notdir $<)\" \
$(CXXFLAGS) $(CXXINCLUDES) $(INCLUDES) -MQ '$@' -MD -MP -c -o $@ $(abspath $<)
ifneq (,$(SHOULD_RUN_KCONFIG))
$(Q)$(FIXDEP) $(@:.o=.d) $@ $(KCONFIG_SYNC_DIR) > $(@:.o=.tmp)
$(Q)mv $(@:.o=.tmp) $(@:.o=.d)
endif
$(ASMOBJ): $(BINDIR)/$(MODULE)/%.o: %.s
$(Q)$(AS) $(ASFLAGS) -o $@ $(abspath $<)
$(ASSMOBJ): $(BINDIR)/$(MODULE)/%.o: %.S $(OBJ_DEPS)
$(ASSMOBJ): $(BINDIR)/$(MODULE)/%.o: %.S $(OBJ_DEPS) | $(if $(SHOULD_RUN_KCONFIG),$(KCONFIG_GENERATED_AUTOCONF_HEADER_C))
$(Q)$(CCAS) $(CCASFLAGS) $(INCLUDES) -MQ '$@' -MD -MP -c -o $@ $(abspath $<)
ifneq (,$(SHOULD_RUN_KCONFIG))
$(Q)$(FIXDEP) $(@:.o=.d) $@ $(KCONFIG_SYNC_DIR) > $(@:.o=.tmp)
$(Q)mv $(@:.o=.tmp) $(@:.o=.d)
endif
# pull in dependency info for *existing* .o files
# deleted header files will be silently ignored

18
makefiles/kconfig.mk
View File

@ -4,11 +4,14 @@ KCONFIG ?= $(RIOTBASE)/Kconfig
# Include tools targets
include $(RIOTMAKE)/tools/kconfiglib.inc.mk
# Include fixdep tool
include $(RIOTMAKE)/tools/fixdep.inc.mk
# Generated dir will contain Kconfig generated configurations
GENERATED_DIR = $(BINDIR)/generated
# The sync dir will contain a tree of header files that represent Kconfig symbols
KCONFIG_SYNC_DIR = $(GENERATED_DIR)/deps
export KCONFIG_SYNC_DIR = $(GENERATED_DIR)/deps
# This file will contain all generated configuration from kconfig
export KCONFIG_GENERATED_AUTOCONF_HEADER_C = $(GENERATED_DIR)/autoconf.h
@ -72,13 +75,13 @@ SHOULD_RUN_KCONFIG ?= $(or $(wildcard $(APPDIR)/*.config), \
$(if $(CLEAN),,$(wildcard $(KCONFIG_OUT_CONFIG))), \
$(filter menuconfig, $(MAKECMDGOALS)))
# export variable to make it visible in other Makefiles
export SHOULD_RUN_KCONFIG
ifneq (,$(SHOULD_RUN_KCONFIG))
# Flag to enable the --sync-dir feature of Kconfiglib
KCONFIG_SYNC_DEPS ?=
# Add configuration header to build dependencies
BUILDDEPS += $(KCONFIG_GENERATED_AUTOCONF_HEADER_C)
BUILDDEPS += $(KCONFIG_GENERATED_AUTOCONF_HEADER_C) $(FIXDEP)
# Include configuration header when building
CFLAGS += -imacros '$(KCONFIG_GENERATED_AUTOCONF_HEADER_C)'
@ -126,12 +129,11 @@ endif # eq (clean, $(MAKECMDGOALS))
# as KCONFIG_OUT_CONFIG, and is used to inject the configurations during
# compilation.
#
# This will optionally generate the 'dummy' header files needed for incremental
# builds.
# This will generate the 'dummy' header files needed for incremental builds.
$(KCONFIG_GENERATED_AUTOCONF_HEADER_C): $(KCONFIG_OUT_CONFIG)
$(Q) $(GENCONFIG) \
--header-path $(KCONFIG_GENERATED_AUTOCONF_HEADER_C) \
$(if $(KCONFIG_SYNC_DEPS),--sync-deps $(KCONFIG_SYNC_DIR)) \
--sync-deps $(KCONFIG_SYNC_DIR) \
--kconfig-filename $(KCONFIG) \
--config-sources $(KCONFIG_OUT_CONFIG) && \
touch $(KCONFIG_GENERATED_AUTOCONF_HEADER_C)