98 lines
3.5 KiB
Makefile
98 lines
3.5 KiB
Makefile
HEAP_SIZE = 8388208
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STACK_SIZE = 61800
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# Locate the Playdate SDK
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SDK = ${PLAYDATE_SDK_PATH}
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ifeq ($(SDK),)
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SDK = $(shell sed -nE 's/^[[:space:]]*SDKRoot[[:space:]]+//p' ~/.Playdate/config | head -n 1)
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endif
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ifeq ($(SDK),)
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$(error SDK path not found; set ENV value PLAYDATE_SDK_PATH)
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endif
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include $(SDK)/C_API/buildsupport/common.mk
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# Determine the Swift toolchain by order of preference:
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#
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# 1. the presence of a TOOLCHAINS environment value
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# 2. a Swift toolchain installed for the current user (e.g. 'Install for me only')
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# 3. a Swift toolchain installed for all users (e.g. 'Install for all users on this computer')
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RELATIVE_TOOLCHAIN_PATH = Library/Developer/Toolchains/swift-latest.xctoolchain
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ifneq ($(TOOLCHAINS),)
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else ifneq ($(wildcard $(HOME)/$(RELATIVE_TOOLCHAIN_PATH)),)
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TOOLCHAINS = $(shell plutil -extract CFBundleIdentifier raw -o - $(HOME)/$(RELATIVE_TOOLCHAIN_PATH)/Info.plist)
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else ifneq ($(wildcard /$(RELATIVE_TOOLCHAIN_PATH)),)
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TOOLCHAINS = $(shell plutil -extract CFBundleIdentifier raw -o - /$(RELATIVE_TOOLCHAIN_PATH)/Info.plist)
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else
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$(error Swift toolchain not found; set ENV value TOOLCHAINS (e.g. TOOLCHAINS=org.swift.59202403121a make))
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endif
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# Note: paths containing spaces are not supported (make word-splits them).
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GCC_INCLUDE_PATHS := $(shell $(CC) -E -Wp,-v -xc /dev/null 2>&1 | egrep '^ ' | xargs echo )
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ifeq ($(GCC_INCLUDE_PATHS),)
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$(error arm-none-eabi C headers not found; install the Arm GNU toolchain and ensure $(CC) is runnable)
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endif
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SWIFT_EXEC := "$(shell TOOLCHAINS=$(TOOLCHAINS) xcrun -f swiftc)"
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# With an unknown TOOLCHAINS id, xcrun silently falls back to Xcode's swiftc,
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# which lacks the Embedded ARM stdlib; fail early with a clear message.
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ifeq ($(findstring .xctoolchain,$(SWIFT_EXEC)),)
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$(error swiftc for toolchain "$(TOOLCHAINS)" not found (xcrun returned $(SWIFT_EXEC)); install a swift.org toolchain or set TOOLCHAINS)
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endif
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TOOLCHAIN_PATH := $(shell echo $(SWIFT_EXEC)|sed s'/.xctoolchain.*/.xctoolchain/')
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$(info Using Swift toolchain "$(TOOLCHAINS)" (from $(TOOLCHAIN_PATH)))
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# Optimization mode for Swift compiles. -Osize targets small code, which
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# suits the device's flash/RAM budget (measured 15% smaller than -O on the
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# HelloPlaydate example); override per-build for maximum speed instead:
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# `make SWIFT_OPT=-O`. For larger games, appending
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# `-Xfrontend -mergeable-symbols -Xfrontend -mergeable-traps` lets the
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# linker deduplicate stdlib code specialized into both the wrapper and the
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# game module.
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SWIFT_OPT ?= -Osize
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C_FLAGS := \
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$(addprefix -I ,$(GCC_INCLUDE_PATHS)) \
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SWIFT_FLAGS := \
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$(addprefix -Xcc , $(C_FLAGS)) \
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$(SWIFT_OPT) \
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-wmo -enable-experimental-feature Embedded \
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-Xfrontend -disable-stack-protector \
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-Xfrontend -function-sections \
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-swift-version 6 \
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-Xcc -DTARGET_EXTENSION \
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-module-cache-path build/module-cache \
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-I $(SDK)/C_API \
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-I build/Modules \
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-I $(REPO_ROOT)/Sources/CPlaydate \
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C_FLAGS_DEVICE := \
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-mthumb \
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-mcpu=cortex-m7 \
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-mfloat-abi=hard \
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-mfpu=fpv5-sp-d16 \
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-D__FPU_USED=1 \
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-falign-functions=16 \
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-fshort-enums \
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SWIFT_FLAGS_DEVICE := \
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$(addprefix -Xcc , $(C_FLAGS_DEVICE)) \
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-target armv7em-none-none-eabi \
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-Xfrontend -experimental-platform-c-calling-convention=arm_aapcs_vfp \
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-module-alias PlaydateKit=playdate_device \
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C_FLAGS_SIMULATOR := \
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SWIFT_FLAGS_SIMULATOR := \
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$(addprefix -Xcc , $(C_FLAGS_SIMULATOR)) \
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-module-alias PlaydateKit=playdate_simulator \
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SIMCOMPILER += \
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-nostdlib \
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-dead_strip \
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-Wl,-exported_symbol,_eventHandlerShim \
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-Wl,-exported_symbol,_eventHandler \
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