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Restructure and refactor makefiles

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- Allow rebuilds without rebuilding everything
 By detecting changes everywhere that matters (flags, objects and headers).
- Add progress bar
- Fully clean everything when clean goal is used
This commit is contained in:
CTCaer
2025-12-31 14:19:56 +02:00
parent 800bec2ec2
commit 1de3206e79
7 changed files with 192 additions and 150 deletions
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36
modules/simple_sample/Makefile
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@@ -5,14 +5,18 @@ endif
include $(DEVKITARM)/base_rules
TARGET := module_sample
BUILD := ../../build/$(TARGET)
OUTPUT := ../../output
BUILDDIR := ../../build/$(TARGET)
OUTPUTDIR := ../../output
SOURCEDIR = simple_sample
BDKDIR := bdk
BDKINC := -I../../$(BDKDIR)
VPATH = $(dir ./) $(dir $(wildcard ./*/))
OBJS = $(addprefix $(BUILD)/,\
# Track compiler flags
TRACK_CFLAGS = $(BUILDDIR)/.cflags
TRACK_LDFLAGS = $(BUILDDIR)/.ldflags
OBJS = $(addprefix $(BUILDDIR)/,\
module_sample.o \
gfx.o \
)
@@ -22,20 +26,28 @@ GFX_INC := '"../modules/$(SOURCEDIR)/gfx/gfx.h"'
CUSTOMDEFINES := -DGFX_INC=$(GFX_INC)
ARCH := -march=armv4t -mtune=arm7tdmi -mthumb-interwork
CFLAGS = $(ARCH) -O2 -nostdlib -fpie -ffunction-sections -fdata-sections -fomit-frame-pointer -std=gnu11 -Wall $(CUSTOMDEFINES)
CFLAGS = $(ARCH) -O2 -nostdlib -fpie -ffunction-sections -fdata-sections -fomit-frame-pointer -std=gnu11 -Wall -Wsign-compare $(CUSTOMDEFINES)
LDFLAGS = $(ARCH) -fpie -pie -nostartfiles -lgcc
.PHONY: clean all
all: $(TARGET).bso
$(BUILD)/%.o: ./%.c
@mkdir -p "$(BUILD)"
@$(CC) $(CFLAGS) $(BDKINC) -c $< -o $@
$(BUILDDIR)/%.o: ./%.c $(TRACK_CFLAGS)
@mkdir -p "$(BUILDDIR)"
@$(CC) $(CFLAGS) $(BDKINC) -MMD -MP -c $< -o $@
$(TARGET).bso: $(OBJS)
@$(CC) $(LDFLAGS) -e _modInit $^ -o $(OUTPUT)/$(TARGET).bso
@$(STRIP) -g $(OUTPUT)/$(TARGET).bso
@echo -e "-------------\nBuilt module: "$(TARGET)".bso\n-------------"
$(TARGET).bso: $(OBJS) $(TRACK_LDFLAGS)
@$(CC) $(LDFLAGS) -e mod_entry $(OBJS) -o $(OUTPUTDIR)/$(TARGET).bso
@$(STRIP) -g $(OUTPUTDIR)/$(TARGET).bso
@echo "Built module: "$(TARGET)".bso"
clean:
@rm -rf $(OUTPUT)/$(TARGET).bso
@rm -rf $(BUILDDIR)/$(TARGET)
@rm -rf $(OUTPUTDIR)/$(TARGET).bso
# Non objects change detectors.
$(TRACK_CFLAGS): $(BUILDDIR)
@echo '$(CFLAGS)' | cmp -s - $@ || echo '$(CFLAGS)' > $@
$(TRACK_LDFLAGS): $(BUILDDIR)
@echo '$(LDFLAGS)' | cmp -s - $@ || echo '$(LDFLAGS)' > $@
-include $(OBJS:.o=.d)