wasm.cf

# ENVIRONMENT VARIABLES

EC_TOOLCHAIN_DIR := $(EC_SDK_SRC)/obj/$(HOST_PLATFORM).x32/

export LD_LIBRARY_PATH := $(EC_TOOLCHAIN_DIR)lib

# PREFIXES AND EXTENSIONS
EC := .ec
S := .sym
I := .imp
B := .bowl
C := .c
O := .o
A := .a
SO := .js
E := .wasm
OUT := $(if $(STATIC_LIBRARY_TARGET),$(A),$(if $(SHARED_LIBRARY_TARGET),$(SO)$(VER),$(if $(EXECUTABLE_TARGET),$(E),.x)))
LP := $(if $(WINDOWS_TARGET),$(if $(STATIC_LIBRARY_TARGET),lib,),lib)
HOST_E := $(if $(WINDOWS_HOST),.exe,)
HOST_SO := $(if $(WINDOWS_HOST),.dll,$(if $(OSX_HOST),.dylib,.so))
HOST_LP := $(if $(WINDOWS_HOST),$(if $(STATIC_LIBRARY_TARGET),lib,),lib)
.SUFFIXES: .c .ec .sym .imp .bowl $(O) $(A)
# TOOLCHAIN

# OPTIONS
ifndef STATIC_LIBRARY_TARGET
   USE_RESOURCES_EAR := defined
endif
NOSTRIP := defined
# EXTENSIONS
OUT := $(if $(STATIC_LIBRARY_TARGET),$(A),$(if $(SHARED_LIBRARY_TARGET),$(SO)$(VER),$(if $(EXECUTABLE_TARGET),$(E),.x)))
CPP := $(CCACHE_COMPILE)$(DISTCC_COMPILE)$(GCC_PREFIX)emcc$(_SYSROOT)
CC := $(CCACHE_COMPILE)$(DISTCC_COMPILE)$(GCC_PREFIX)emcc -O2$(_SYSROOT)$(if $(GCC_CC_FLAGS),$(space)$(GCC_CC_FLAGS),)
CXX := $(CCACHE_COMPILE)$(DISTCC_COMPILE)$(GCC_PREFIX)em++$(_SYSROOT)$(if $(GCC_CXX_FLAGS),$(space)$(GCC_CXX_FLAGS),)
ECP := $(EC_TOOLCHAIN_DIR)bin/ecp32
ECC := $(EC_TOOLCHAIN_DIR)bin/ecc32$(if $(CROSS_TARGET), -t $(TARGET_PLATFORM),)
ECS := $(EC_TOOLCHAIN_DIR)bin/ecs32 -wasm$(if $(CROSS_TARGET), -t $(TARGET_PLATFORM),)$(if $(OUTPUT_POT), -outputpot,)$(if $(DISABLED_POOLING), -disabled-pooling,)
EAR := $(EC_TOOLCHAIN_DIR)bin/ear32
AS := $(GCC_PREFIX)as
LD := $(GCC_PREFIX)emcc -O2 -s ALLOW_MEMORY_GROWTH=1 -s ERROR_ON_UNDEFINED_SYMBOLS=1 -s EXPORT_ALL=1 -s WASM_BIGINT$(_SYSROOT)$(if $(GCC_LD_FLAGS),$(space)$(GCC_LD_FLAGS),)
AR := $(GCC_PREFIX)emar
STRIP := $(GCC_PREFIX)strip
ifdef WINDOWS_TARGET
WINDRES := $(GCC_PREFIX)windres
 ifdef ARCH
  ifeq ($(ARCH),x32)
WINDRES_FLAGS := -F pe-i386
  else
   ifeq ($(ARCH),x64)
WINDRES_FLAGS := -F pe-x86-64
   endif
  endif
 endif
endif
UPX := upx

UPXFLAGS = -9

EARFLAGS =

ifndef ARCH
TARGET_ARCH :=$(shell $(CC) -dumpmachine)
 ifdef WINDOWS_HOST
  ifneq ($(filter x86_64%,$(TARGET_ARCH)),)
     TARGET_ARCH := x86_64
  else
     TARGET_ARCH := i386
  endif
 endif
endif

# HARD CODED TARGET_PLATFORM-SPECIFIC OPTIONS
LDFLAGS +=$(if $(LINUX_TARGET), $(if $(__EMSCRIPTEN__),-Wl$(comma)--no-undefined,),)

LDFLAGS +=$(if $(OSX_TARGET), -framework cocoa -framework OpenGL,)

CFLAGS += -fmessage-length=0

ZLIB_ABSPATH := $(realpath $(dir $(EC_SDK_SRC)/deps/zlib/))

CFLAGS += -isystem $(call quote_path,$(ZLIB_ABSPATH)/src)

CFLAGS += -D__EMSCRIPTEN__ -DEMSCRIPTEN_WASM=1

LDFLAGS += -L$(call quote_path,$(ZLIB_ABSPATH)/obj/release.linux.$(COMPILER))

ifndef STATIC_LIBRARY_TARGET
ifndef EXECUTABLE_TARGET
LDFLAGS += -s MODULARIZE=1 -s EXPORT_ES6=1 -s EXPORT_NAME="$(MODULE)Module" -s EXPORTED_RUNTIME_METHODS="['cwrap', 'ccall', 'stringToUTF8', 'stackSave', 'stackRestore']"
endif
endif

# Avoid -shared being passed
SHAREDLIB :=

ECFLAGS += -t32

CFLAGS += -xc -msimd128

CXXFLAGS += -D__EMSCRIPTEN__ -DEMSCRIPTEN_WASM=1

ifdef WINDOWS_HOST
  NULL_DEVICE := nul
else
  NULL_DEVICE := /dev/null
endif

define check_flag
$(shell echo "int main(){}" | $(CC) -x c -o $(NULL_DEVICE) -c $(1) >$(NULL_DEVICE) 2>&1 && echo "yes" || echo "no")
endef

# This eC SDK is currently incompatible with C23, due to conflicting bool data type
CFLAGS += -fmessage-length=0 -std=gnu11

# The eC transpiler currently clears only the first member of unions assuming the entire union will be zeroed out
# GCC 15 is also being too agressive with strict aliasing optimizations breaking e.g., built-in container code generated by the compiler
ifeq ($(call check_flag,-fzero-init-padding-bits=unions),yes)
  CFLAGS += -fzero-init-padding-bits=unions
endif

CFLAGS += -fno-strict-aliasing

OFLAGS += $(LDFLAGS)
ifdef ARCH_FLAGS
CFLAGS += $(ARCH_FLAGS)
CXXFLAGS += $(ARCH_FLAGS)
OFLAGS += $(ARCH_FLAGS)
endif