ac1447ae9d
When files change that go into a static library such as libutils.a, then libutils.a doesn't get rebuilt from, e.g., wlantest because the top-level Makefile just calls the library make if the library doesn't exist yet. Change that by making the library depend on a phony target (cannot make it itself phony due to the pattern) so that the build will always recurse into the library build, and check there if the library needs to be rebuilt. While at it, remove the (actually unnecessary) mkdir so it doesn't get done each and every time you do 'make'. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
110 lines
2.2 KiB
Plaintext
110 lines
2.2 KiB
Plaintext
.PHONY: all
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all: _all
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# disable built-in rules
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.SUFFIXES:
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# setup some variables
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ROOTDIR := $(dir $(lastword $(MAKEFILE_LIST)))
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ROOTDIR := $(dir $(ROOTDIR:%../src/=%))../
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BUILDDIR ?= $(abspath $(ROOTDIR)build)
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BUILDDIR := $(BUILDDIR:%/=%)
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ABSROOT := $(abspath $(ROOTDIR))
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ifeq ($(origin OUT),command line)
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_PROJ := $(OUT:%/=%)
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_PROJ := $(_PROJ:$(BUILDDIR)/%=%)
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else
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_PROJ := $(abspath $(dir $(firstword $(MAKEFILE_LIST))))
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_PROJ := $(_PROJ:$(ABSROOT)/%=%)
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endif
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ifndef CC
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CC=gcc
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endif
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ifndef RANLIB
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RANLIB=ranlib
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endif
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ifndef LDO
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LDO=$(CC)
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endif
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ifndef CFLAGS
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CFLAGS = -MMD -O2 -Wall -g
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endif
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ifneq ($(CONFIG_FILE),)
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-include $(CONFIG_FILE)
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# export for sub-makefiles
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export CONFIG_CODE_COVERAGE
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.PHONY: verify_config
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verify_config:
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@if [ ! -r $(CONFIG_FILE) ]; then \
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echo 'Building $(firstword $(ALL)) requires a configuration file'; \
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echo '(.config). See README for more instructions. You can'; \
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echo 'run "cp defconfig .config" to create an example'; \
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echo 'configuration.'; \
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exit 1; \
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fi
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VERIFY := verify_config
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else
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VERIFY :=
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endif
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# default target
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.PHONY: _all
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_all: $(VERIFY) $(ALL) $(EXTRA_TARGETS)
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# continue setup
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COVSUFFIX := $(if $(CONFIG_CODE_COVERAGE),-cov,)
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PROJ := $(_PROJ)$(COVSUFFIX)
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Q=@
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E=echo
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ifeq ($(V), 1)
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Q=
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E=true
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endif
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ifeq ($(QUIET), 1)
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Q=@
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E=true
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endif
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ifeq ($(Q),@)
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MAKEFLAGS += --no-print-directory
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endif
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_DIRS := $(BUILDDIR)/$(PROJ)
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.PHONY: _make_dirs
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_make_dirs:
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@mkdir -p $(_DIRS)
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$(BUILDDIR)/$(PROJ)/src/%.o: $(ROOTDIR)src/%.c $(CONFIG_FILE) | _make_dirs
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$(Q)$(CC) -c -o $@ $(CFLAGS) $<
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@$(E) " CC " $<
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$(BUILDDIR)/$(PROJ)/%.o: %.c $(CONFIG_FILE) | _make_dirs
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$(Q)$(CC) -c -o $@ $(CFLAGS) $<
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@$(E) " CC " $<
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# for the fuzzing tests
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$(BUILDDIR)/$(PROJ)/wpa_supplicant/%.o: $(ROOTDIR)wpa_supplicant/%.c $(CONFIG_FILE) | _make_dirs
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$(Q)$(CC) -c -o $@ $(CFLAGS) $<
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@$(E) " CC " $<
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# libraries - they know how to build themselves
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# (lib_phony so we recurse all the time)
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.PHONY: lib_phony
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lib_phony:
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# nothing
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$(BUILDDIR)/$(PROJ)/%.a: $(CONFIG_FILE) lib_phony
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$(Q)$(MAKE) -C $(ROOTDIR)$(dir $(@:$(BUILDDIR)/$(PROJ)/%=%)) OUT=$(abspath $(dir $@))/
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BUILDOBJ = $(patsubst %,$(BUILDDIR)/$(PROJ)/%,$(patsubst $(ROOTDIR)%,%,$(1)))
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.PHONY: common-clean
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common-clean:
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$(Q)rm -rf $(ALL) $(BUILDDIR)/$(PROJ)
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