gint/Makefile

172 lines
4.1 KiB
Makefile
Executable file

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