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Sprinter-SDCC/lib/Makefile
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snark13 858e5755ad ChangeLog:
- big commit.
2026-06-10 10:35:48 +03:00

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Makefile

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