forked from Lephenixnoir/gint
173 lines
4.1 KiB
Makefile
Executable File
173 lines
4.1 KiB
Makefile
Executable File
#! /usr/bin/make -f
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#
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# gint project Makefile
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#
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#---
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#
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# Build configuration
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#
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# Some rules don't care if config files are missing (eg. clean, etc)
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cfg := config/Makefile.cfg
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-include $(cfg)
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# Those that do may use this special dependency
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cfgdep := $(if $(shell [ -f $(cfg) ] || echo n),CFGDEP,$(cfg))
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cf-fx := -m3 -mb -ffreestanding -nostdlib -Wall -Wextra -std=c11 -Os \
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-fstrict-volatile-bitfields -I include $(cfg_macros)
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cf-cg := -m4 -mb -ffreestanding -nostdlib -Wall -Wextra -std=c11 -Os \
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-fstrict-volatile-bitfields -I include $(cfg_macros)
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# On fx9860g, use the sh3eb-elf toolchain; on fxcg50, prefer sh4eb-nofpu-elf
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toolchain := $(if $(filter $(cfg_target),fx),sh3eb-elf,sh4eb-nofpu-elf)
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# Compiler flags, assembler flags, dependency generation, archiving
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cflags := $(cf-$(cfg_target))
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sflags := $(cfg_macros)
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dflags = -MMD -MT $@ -MF $(@:.o=.d) -MP
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arflags :=
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#
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# File listings
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#
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# Target file (cfg_target is either "fx" or "cg")
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target := bin/libgint-$(cfg_target).a
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# Automatic names for object and dependency files
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src2obj = build/$(1:src/%=%).o
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src2dep = build/$(1:src/%=%).d
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# Source files
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src := $(shell find src -name '*.[csS]')
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src_obj := $(foreach s,$(src),$(call src2obj,$s))
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# Files with special handling
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# spe := build/version.o src/display/font.bmp
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spe :=
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spe_obj := build/version.o $(foreach s,$(spe),$(call src2obj,$s))
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# All object files
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obj := $(src_obj) $(spe_obj)
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# Version file
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version := config/version
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#
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# Toolchain
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#
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gcc = $(toolchain)-gcc
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as = $(toolchain)-as
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ld = $(toolchain)-ld
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ar = $(toolchain)-ar
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objcopy = $(toolchain)-objcopy
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conv = fxconv
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#
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# Version management
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#
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# Retrieve version information
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v_file = $(shell cat $(version) | sed 's/[-.]/ /g')
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v_type = $(word 1,$(v_file))
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v_major = $(word 2,$(v_file))
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v_minor = $(word 3,$(v_file))
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v_build = $(word 4,$(v_file))
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# Create the current version symbol and the new version integer
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v_newbuild = $(shell echo $$(($(v_build) + 1)))
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v_letter = $(shell echo -n $(v_type) | sed -r 's/^(.).*/\1/')
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v_symbol = $(shell printf '0x%02x%01x%01x%04x' "'$(v_letter)'" \
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$(v_major) $(v_minor) $(v_build))
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#
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# Build rules
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#
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all: $(target)
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$(target): $(obj) $(version) | $(dir $(target))
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$(call cmd_l,ar,$@) $(ar) -crs $(arflags) $@ $(obj)
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# Assembler sources
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build/%.s.o: src/%.s build/%.s.d
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@ mkdir -p $(dir $@)
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$(call cmd_b,as,$<) $(gcc) -c $< -o $@ $(sflags)
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build/%.S.o: src/%.S build/%.S.d
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@ mkdir -p $(dir $@)
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$(call cmd_b,as,$<) $(gcc) -c $< -o $@ $(sflags)
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# C sources
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build/%.c.o: src/%.c build/%.c.d $(cfgdep)
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@ mkdir -p $(dir $@)
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$(call cmd_b,gcc,$<) $(gcc) -c $< -o $@ $(dflags) $(cflags)
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# Special files
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$(call src2obj,src/display/font.bmp): src/display/font.bmp
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@ mkdir -p $(dir $@)
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$(call cmd_m,fxconv,$<) $(conv) -font $< -n gint_font -o $@
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# Version symbol. ld generates a .stack section for unknown reasons; I fall
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# back to removing it afterwards.
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build/version.o:
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@ mkdir -p $(dir $@)
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@ echo "_GINT_VERSION = $(v_symbol);" > $@.txt
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$(call cmd_b,ld,$@) $(ld) -r -R $@.txt -o $@
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#
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# Cleaning
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#
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clean:
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@ rm -rf build/
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distclean: clean
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@ rm -rf bin/
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@ rm -f $(config)
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#
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# Utilities
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#
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$(version): $(src) $(wildcard include/**/*)
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@ echo '$(v_type)-$(v_major).$(v_minor)-$(v_newbuild)' > $@
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# Evaluated when a rule requires the configuration file but it doesn't exist
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CFGDEP:
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@ echo "Configuration file $(cfg) is missing. Have you configured?"
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@ echo "See \`./configure --help\` for details."
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@ false
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# Make directories: make conveniently leaves a '/' at the end of $(dir ...)
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%/:
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@ mkdir -p $@
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# Don't try to unlink directories once they're built (that wouldn't work =p)
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.PRECIOUS: %/
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# Dependency information
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-include $(shell [ -d build ] && find build -name *.d)
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build/%.d: ;
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.PRECIOUS: build/%.d
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# Do not output full commands by default
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VERBOSE ?=
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# Simple command output method
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# $1 Program name
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# $2 Argument string to display
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# $3 Command color
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define cmd
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@ echo -e "\e[""$3"";1m>\e[0;1m $1\e[0m $2"
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$(if $(VERBOSE),,@)
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endef
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# Some pre-colored command kinds: misc, build, link, clean, install
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cmd_m = $(call cmd,$1,$2,30)
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cmd_b = $(call cmd,$1,$2,32)
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cmd_l = $(call cmd,$1,$2,36)
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cmd_c = $(call cmd,$1,$2,31)
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cmd_i = $(call cmd,$1,$2,33)
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