132 lines
5.1 KiB
Makefile
132 lines
5.1 KiB
Makefile
# DOS (DJGPP) build rules: JoeyLib's library for DOS, and programRules, the
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# DOS rules for one program, which make/programs.mk instantiates for every
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# program (a project reaches both through make/project.mk). JoeyLib's own
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# examples are at the end.
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PLATFORM := dos
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include $(dir $(lastword $(MAKEFILE_LIST)))/common.mk
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$(call requireTool,$(DOS_CC),toolchain:dos)
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$(call requireTool,$(DOS_AS),toolchain:dos)
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$(call requireTool,$(DOS_CWSDSTUB),toolchain:dos)
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$(call requireTool,$(LIBXMP_DIR)/include/libxmp-lite/xmp.h,toolchain:dos)
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# -fomit-frame-pointer: flag parity with the ST/Amiga CFLAGS (both had
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# it; DOS never did). Frees EBP for allocation in the hot loops under
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# DOSBox's per-instruction-charged core (perf-hunt-2 rank 2).
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# so flag experiments never edit a tracked file (perf-hunt-2 rank 17).
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CFLAGS := $(COMMON_CFLAGS) -march=i386 -m32 -fomit-frame-pointer -I$(SRC_DIR)/dos -I$(SRC_X86) -I$(LIBXMP_DIR)/include -MMD -MP
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ASFLAGS := -f coff
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# libxmp-lite (MIT, libxmp.org) -- 4-channel-Protracker-and-friends
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# replayer + SMIX SFX overlay. Installed by ./install.sh
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# (LIBXMP_DIR, from config.mk). Built as a static archive that the DOS
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# audio HAL links against.
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LIBXMP_SRC := $(filter-out %/win32.c, $(wildcard $(LIBXMP_DIR)/src/*.c) $(wildcard $(LIBXMP_DIR)/src/loaders/*.c))
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LIBXMP_OBJDIR := $(BUILD)/obj/libxmp-lite
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LIBXMP_OBJS := $(patsubst $(LIBXMP_DIR)/src/%.c,$(LIBXMP_OBJDIR)/%.o,$(LIBXMP_SRC))
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LIBXMP_AR := $(LIBDIR)/libxmplite.a
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LIBXMP_CFLAGS := -DJOEY_LIBXMP_LITE -DLIBXMP_CORE_PLAYER -DHAVE_FNMATCH=0 -I$(LIBXMP_DIR)/include -I$(LIBXMP_DIR)/include/libxmp-lite -I$(LIBXMP_DIR)/src -Wno-error -w
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# The x86 code DOS shares with DVX (the sprite emitter, the whole-map tile
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# walker, the set-1 scan code table) lives in src/x86 and builds into obj/x86;
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# only the CPU-independent sprite dispatch stays in src/codegen.
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PORT_C_SRCS := $(wildcard $(SRC_DIR)/dos/*.c)
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PORT_S_SRCS := $(wildcard $(SRC_DIR)/dos/*.asm)
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X86_C_SRCS := $(wildcard $(SRC_X86)/*.c)
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CODEGEN_DIR := $(REPO_DIR)/src/codegen
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LIB_OBJS := \
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$(patsubst $(SRC_CORE)/%.c,$(BUILD)/obj/core/%.o,$(CORE_C_SRCS)) \
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$(patsubst $(SRC_DIR)/generic/%.c,$(BUILD)/obj/generic/%.o,$(GENERIC_C_SRCS)) \
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$(patsubst $(SRC_DIR)/dos/%.c,$(BUILD)/obj/port/%.o,$(PORT_C_SRCS)) \
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$(patsubst $(SRC_DIR)/dos/%.asm,$(BUILD)/obj/port/%.o,$(PORT_S_SRCS)) \
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$(patsubst $(SRC_X86)/%.c,$(BUILD)/obj/x86/%.o,$(X86_C_SRCS)) \
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$(BUILD)/obj/codegen/spriteCompile.o \
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$(BUILD)/obj/codegen/spriteStage.o
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LIB := $(LIBDIR)/libjoey.a
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$(BUILD)/obj/core/%.o: $(SRC_CORE)/%.c
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@mkdir -p $(dir $@)
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$(DOS_CC) $(CFLAGS) -c $< -o $@
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$(BUILD)/obj/generic/%.o: $(SRC_DIR)/generic/%.c
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@mkdir -p $(dir $@)
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$(DOS_CC) $(CFLAGS) -c $< -o $@
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$(BUILD)/obj/port/%.o: $(SRC_DIR)/dos/%.c
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@mkdir -p $(dir $@)
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$(DOS_CC) $(CFLAGS) -I$(CODEGEN_DIR) -c $< -o $@
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$(BUILD)/obj/port/%.o: $(SRC_DIR)/dos/%.asm
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@mkdir -p $(dir $@)
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$(DOS_AS) $(ASFLAGS) $< -o $@
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$(BUILD)/obj/x86/%.o: $(SRC_X86)/%.c
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@mkdir -p $(dir $@)
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$(DOS_CC) $(CFLAGS) -I$(CODEGEN_DIR) -c $< -o $@
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$(BUILD)/obj/codegen/%.o: $(CODEGEN_DIR)/%.c
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@mkdir -p $(dir $@)
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$(DOS_CC) $(CFLAGS) -I$(CODEGEN_DIR) -c $< -o $@
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# Archived from scratch, so the members -- and every program's layout --
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# follow LIB_OBJS rather than the order earlier builds added them in.
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$(LIB): $(LIB_OBJS)
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@mkdir -p $(dir $@)
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rm -f $@
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$(DOS_AR) rcs $@ $^
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$(LIBXMP_OBJDIR)/%.o: $(LIBXMP_DIR)/src/%.c
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@mkdir -p $(dir $@)
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$(DOS_CC) $(CFLAGS) $(LIBXMP_CFLAGS) -c $< -o $@
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$(LIBXMP_AR): $(LIBXMP_OBJS)
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@mkdir -p $(dir $@)
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rm -f $@
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$(DOS_AR) rcs $@ $^
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# Pull in per-object header-dependency files generated by gcc -MMD/-MP.
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# Without this, editing a header (e.g. surfaceInternal.h) doesn't rebuild
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# the .c files that include it, leaving a frankenstein binary where
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# different TUs see different struct layouts.
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-include $(LIB_OBJS:.o=.d)
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# ---- programs -----------------------------------------------------------------
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# A program is NAME.EXE, in bin/ or in its own bin/NAME/ with its DATA beside
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# it (JoeyLib's install convention), where DOSBox's C: (bin/ or the folder)
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# finds both.
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PROGRAM_EXT := .EXE
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PROGRAM_FOLDERS := yes
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# One program, $(1) its id: compiled and linked in one step with the library
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# and libxmp-lite, then given the CWSDPMI DPMI server, so the .EXE needs no
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# CWSDPMI.EXE beside it. gcc's -MMD leaves NAME.d beside it, for header edits.
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define programRules
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$(call programBin,$(1)): $(call programVar,$(1),SRCS) $(LIB) $(LIBXMP_AR)
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@mkdir -p $$(dir $$@)
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$(DOS_CC) $(CFLAGS) $(call programVar,$(1),CFLAGS) $(call programVar,$(1),SRCS) $(LIB) $(LIBXMP_AR) -o $$@ $(call programVar,$(1),LDFLAGS)
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$(DOS_EMBED_DPMI) $$@
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-include $(basename $(call programBin,$(1))).d
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endef
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# ---- JoeyLib's own build: its examples ------------------------------------------
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ifndef JOEY_PROJECT
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include $(REPO_DIR)/make/examples.mk
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include $(REPO_DIR)/make/programs.mk
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.DEFAULT_GOAL := all
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.PHONY: all dos clean-dos clean
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all dos: $(LIB) $(LIBXMP_AR) programs
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clean-dos:
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rm -rf $(BUILD)
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# `clean` as an alias for `clean-dos`. Without it a bare
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# `make -f make/dos.mk clean` FAILS -- and with stderr discarded that
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# looks like success while leaving stale objects the next build links.
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clean: clean-dos
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endif
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