tools/Swift.defs

############################################################################
# tools/Swift.defs
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.  The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
# License for the specific language governing permissions and limitations
# under the License.
#
############################################################################

# required: Swift 6

SWIFTC := swiftc

SWIFTFLAGS := -enable-experimental-feature Embedded -wmo

ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
  SWIFTFLAGS += $(CONFIG_DEBUG_SYMBOLS_LEVEL)
endif

ifeq ($(CONFIG_DEBUG_NOOPT),y)
  SWIFTFLAGS += -Osize
endif

# Special handling for the SIM

ifeq ($(CONFIG_ARCH_SIM),y)
  ifeq ($(CONFIG_HOST_LINUX),y)
    ifeq ($(LLVM_ARCHTYPE),x86)
      # Only for x86 based host or x64 but m32 build
      SWIFTFLAGS += -target i686-unknown-linux-$(LLVM_ABITYPE)
    else
      # For other archs, such as aarch64, arm etc
      SWIFTFLAGS += -target $(LLVM_ARCHTYPE)-unknown-linux-$(LLVM_ABITYPE)
      SWIFTFLAGS += -target-cpu $(LLVM_CPUTYPE)
    endif
  else ifeq ($(CONFIG_HOST_MACOS),y)
    # Triple target [x86/arm64]-apple-macosx[min_version]
    ifeq ($(LLVM_ARCHTYPE),aarch64)
        SWIFTFLAGS += -target arm64-apple-macosx11.7.1
    else
        SWIFTFLAGS += -target $(LLVM_ARCHTYPE)-apple-macosx10.9.0
    endif
  endif
else ifeq ($(CONFIG_ARCH_RISCV),y)
  # Target triple is riscv[32|64]-unknown-none-eabi
  SWIFTFLAGS += -target $(LLVM_ARCHTYPE)-none-none-eabi
  ifeq ($(CONFIG_ARCH_FPU),y)
    SWIFTFLAGS += -Xcc -march=rv32imafc_zicsr_zifencei
  else ifeq ($(CONFIG_ARCH_DPFPU),y)
    SWIFTFLAGS := -Xcc -march=rv32imafdc_zicsr_zifencei
  else
    SWIFTFLAGS += -Xcc -march=rv32imac_zicsr_zifencei
  endif

  # Handle ABI and CPU
  ifeq ($(CONFIG_ARCH_RV32),y)
    SWIFTFLAGS += -target-cpu generic-rv32
    SWIFTFLAGS += -Xcc -mabi=ilp32d
  else ifeq ($(CONFIG_ARCH_RV64),y)
    SWIFTFLAGS += -target-cpu generic-rv64
    SWIFTFLAGS += -Xcc -mabi=lp64d
  endif
else
  # For arm, but there are some other archs not support yet,
  # such as xtensa, x86 bare metal, etc.
  SWIFTFLAGS += -target $(LLVM_ARCHTYPE)-none-none-$(LLVM_ABITYPE)
  SWIFTFLAGS += -target-cpu $(LLVM_CPUTYPE)
endif


# Note for reference - all embedded targets available
# see: ls ${SWIFT_PREFIX_PATH}/lib/swift/embedded/Swift.swiftmodule/
#
# aarch64-none-none-elf, arm64-apple-none-macho,
# armv4t-none-none-eabi, armv6-apple-none-macho, armv6-none-none-eabi,
# armv6m-apple-none-macho, armv6m-none-none-eabi, armv7-apple-none-macho,
# armv7-none-none-eabi, armv7em-apple-none-macho, armv7em-none-none-eabi,
# avr-none-none-elf, i686-unknown-none-elf, riscv32-none-none-eabi,
# riscv64-none-none-eabi, wasm32-unknown-none-wasm, wasm64-unknown-none-wasm,
# x86_64-unknown-linux-gnu, x86_64-unknown-none-elf,