106 lines
3.0 KiB
Makefile
106 lines
3.0 KiB
Makefile
# Build lib/libsprinter.lib — the Sprinter target libc archive.
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#
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# Includes all libc/*.c modules plus the runtime helpers that get
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# auto-pulled by SDCC's codegen (heap for malloc, bank trampolines for
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# __banked). The crt0 family is NOT in the lib — they are always
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# explicitly linked, never DCE-eligible.
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#
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# Each .c file becomes its own .rel inside the archive. The linker
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# pulls only those .rel files whose exported symbols are referenced,
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# giving free dead-code elimination at module granularity.
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PROJ_ROOT := $(abspath $(CURDIR)/..)
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SDCC_BIN := $(PROJ_ROOT)/third_party/sdcc/bin
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SDCC := $(SDCC_BIN)/sdcc
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SDAR := $(SDCC_BIN)/sdar
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SDASZ80 := $(SDCC_BIN)/sdasz80
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INC := -I$(PROJ_ROOT)/libc/include
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CC_FLAGS := -mz80 --no-std-crt0 --std-c99 --opt-code-size $(INC)
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BUILD := $(PROJ_ROOT)/lib/build
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# All libc C modules.
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LIBC_C := \
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libc/sys/atexit.c \
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libc/conio/conio.c \
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libc/conio/cprintf.c \
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libc/conio/text_palette.c \
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libc/io/dir.c \
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libc/video/videomode_raw.c \
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libc/video/palette.c \
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libc/errno/_errno_set.c \
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libc/env/env.c \
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libc/errno/errno.c \
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libc/io/fsdir.c \
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libc/io/lseek.c \
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libc/mouse/mouse.c \
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libc/io/open.c \
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libc/io/read.c \
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libc/time/sleep.c \
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libc/time/time.c \
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libc/time/posix_time.c \
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libc/io/unlink.c \
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libc/io/stat.c \
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libc/mem/bank_io_w3.c \
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libc/mem/bank_io_w1.c \
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libc/mem/mem_estex.c \
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libc/mem/mem_bios.c \
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libc/gfx/gfx_core.c \
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libc/gfx/gfx_palette.c \
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libc/gfx/gfx_raw_common.c \
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libc/gfx/gfx_raw_256.c \
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libc/gfx/gfx_raw_16.c \
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libc/gfx/gfx_256.c \
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libc/gfx/gfx_16.c \
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libc/gfx/gfx_font.c \
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libc/gfx/gfx_text_256.c \
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libc/gfx/gfx_text_16.c \
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libc/stdio/getchar.c \
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libc/stdio/putchar.c \
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libc/stdio/puts.c \
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libc/file/file.c \
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libc/stdio/hex_print.c \
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libc/stdio/dec_print.c \
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libc/string/strlwr.c \
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libc/string/strupr.c
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# Runtime modules to bundle (pulled by symbol references from libc-using code).
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# NOTE: runtime/bank.s is NOT bundled — its trampoline depends on the banking
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# window (W1 for BIG, W3 for HUGE) which is decided per-build by sprinter-cc.
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# That tool assembles bank.s on each banked build with the right BANK_W1 flag.
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RUNTIME_S := runtime/heap.s
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LIBC_RELS := $(patsubst libc/%.c,$(BUILD)/%.rel,$(LIBC_C))
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RUNTIME_RELS := $(patsubst runtime/%.s,$(BUILD)/%.rel,$(RUNTIME_S))
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ALL_RELS := $(LIBC_RELS) $(RUNTIME_RELS)
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LIB := sprinter.lib
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all: $(LIB)
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# Pattern rule for C modules — preserves the libc/io|mem|stdio path
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# so .rel members keep their natural names inside the archive.
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$(BUILD)/%.rel: $(PROJ_ROOT)/libc/%.c
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@mkdir -p $(dir $@)
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$(SDCC) $(CC_FLAGS) -c -o $@ $<
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# Runtime .s → .rel
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$(BUILD)/%.rel: $(PROJ_ROOT)/runtime/%.s
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@mkdir -p $(dir $@)
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$(SDASZ80) -o $@ $<
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# Archive — sdar with `rcs` = replace/create/symtab.
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$(LIB): $(ALL_RELS)
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rm -f $@
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$(SDAR) -rcs $@ $(ALL_RELS)
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@echo
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@echo " Built $@ with $(words $(ALL_RELS)) modules:"
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@$(SDAR) -t $@ | sed 's/^/ /'
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clean:
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rm -rf $(BUILD) $(LIB)
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.PHONY: all clean
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