# Copyright 2021 The Pigweed Authors
#
# Licensed 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
#
#     https://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.

import("//build_overrides/pigweed.gni")

import("$dir_pw_build/defaults.gni")
import("$dir_pw_toolchain/clang_tools.gni")

# Specifies the tools used by host Clang toolchains.
_arm_clang_toolchain = {
  forward_variables_from(pw_toolchain_clang_tools, "*")

  link_group = true

  # Enable static analysis for arm clang based toolchains.
  static_analysis = {
    enabled = true
  }
}

# These are the defaults automatically applied to every pw_toolchain_arm_clang*
# toolchain.
pigweed_arm_clang_defaults = {
  # Build LLVM builtins library from sources and link against it for each
  # target.
  # If `dir_pw_third_party_llvm_builtins` is not configured, this library will
  # be empty.
  pw_build_TOOLCHAIN_LINK_DEPS = [ "$dir_pw_toolchain:builtins" ]
}

# Configs specific to different architectures.
_cortex_m0plus = [
  "$dir_pw_toolchain/arm_clang:nosys",
  "$dir_pw_toolchain/arm_clang:cortex_m0plus",
]

_cortex_m3 = [
  "$dir_pw_toolchain/arm_clang:nosys",
  "$dir_pw_toolchain/arm_clang:cortex_m3",
]

_cortex_m4 = [
  "$dir_pw_toolchain/arm_clang:nosys",
  "$dir_pw_toolchain/arm_clang:cortex_m4",
]

_cortex_m4f = [
  "$dir_pw_toolchain/arm_clang:nosys",
  "$dir_pw_toolchain/arm_clang:cortex_m4f",
]

_cortex_m7 = [
  "$dir_pw_toolchain/arm_clang:nosys",
  "$dir_pw_toolchain/arm_clang:cortex_m7",
]

_cortex_m7f = [
  "$dir_pw_toolchain/arm_clang:nosys",
  "$dir_pw_toolchain/arm_clang:cortex_m7f",
]

_cortex_m33 = [
  "$dir_pw_toolchain/arm_clang:nosys",
  "$dir_pw_toolchain/arm_clang:cortex_m33",
]

_cortex_m33f = [
  "$dir_pw_toolchain/arm_clang:nosys",
  "$dir_pw_toolchain/arm_clang:cortex_m33f",
]

# Describes ARM clang toolchains for specific targets.
pw_toolchain_arm_clang = {
  cortex_m0plus_debug = {
    name = "arm_clang_cortex_m0plus_debug"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m0plus +
                        [ "$dir_pw_build:optimize_debugging" ]
    }
  }
  cortex_m0plus_speed_optimized = {
    name = "arm_clang_cortex_m0plus_speed_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m0plus +
                        [ "$dir_pw_build:optimize_speed" ]
    }
  }
  cortex_m0plus_size_optimized = {
    name = "arm_clang_cortex_m0plus_size_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m0plus +
                        [ "$dir_pw_build:optimize_size_clang" ]
    }
  }
  cortex_m3_debug = {
    name = "arm_clang_cortex_m3_debug"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m3 +
                        [ "$dir_pw_build:optimize_debugging" ]
    }
  }
  cortex_m3_speed_optimized = {
    name = "arm_clang_cortex_m3_speed_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m3 +
                        [ "$dir_pw_build:optimize_speed" ]
    }
  }
  cortex_m3_size_optimized = {
    name = "arm_clang_cortex_m3_size_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m3 +
                        [ "$dir_pw_build:optimize_size_clang" ]
    }
  }
  cortex_m4_debug = {
    name = "arm_clang_cortex_m4_debug"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m4 +
                        [ "$dir_pw_build:optimize_debugging" ]
    }
  }
  cortex_m4_speed_optimized = {
    name = "arm_clang_cortex_m4_speed_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m4 +
                        [ "$dir_pw_build:optimize_speed" ]
    }
  }
  cortex_m4_size_optimized = {
    name = "arm_clang_cortex_m4_size_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m4 +
                        [ "$dir_pw_build:optimize_size_clang" ]
    }
  }
  cortex_m4f_debug = {
    name = "arm_clang_cortex_m4f_debug"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m4f +
                        [ "$dir_pw_build:optimize_debugging" ]
    }
  }
  cortex_m4f_speed_optimized = {
    name = "arm_clang_cortex_m4f_speed_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m4f +
                        [ "$dir_pw_build:optimize_speed" ]
    }
  }
  cortex_m4f_size_optimized = {
    name = "arm_clang_cortex_m4f_size_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m4f +
                        [ "$dir_pw_build:optimize_size_clang" ]
    }
  }
  cortex_m7_debug = {
    name = "arm_clang_cortex_m7_debug"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m7 +
                        [ "$dir_pw_build:optimize_debugging" ]
    }
  }
  cortex_m7_speed_optimized = {
    name = "arm_clang_cortex_m7_speed_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m7 +
                        [ "$dir_pw_build:optimize_speed" ]
    }
  }
  cortex_m7_size_optimized = {
    name = "arm_clang_cortex_m7_size_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m7 +
                        [ "$dir_pw_build:optimize_size_clang" ]
    }
  }
  cortex_m7f_debug = {
    name = "arm_clang_cortex_m7f_debug"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m7f +
                        [ "$dir_pw_build:optimize_debugging" ]
    }
  }
  cortex_m7f_speed_optimized = {
    name = "arm_clang_cortex_m7f_speed_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m7f +
                        [ "$dir_pw_build:optimize_speed" ]
    }
  }
  cortex_m7f_size_optimized = {
    name = "arm_clang_cortex_m7f_size_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m7f +
                        [ "$dir_pw_build:optimize_size_clang" ]
    }
  }
  cortex_m33_debug = {
    name = "arm_clang_cortex_m33_debug"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m33 +
                        [ "$dir_pw_build:optimize_debugging" ]
    }
  }
  cortex_m33_speed_optimized = {
    name = "arm_clang_cortex_m33_speed_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m33 +
                        [ "$dir_pw_build:optimize_speed" ]
    }
  }
  cortex_m33_size_optimized = {
    name = "arm_clang_cortex_m33_size_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m33 +
                        [ "$dir_pw_build:optimize_size_clang" ]
    }
  }
  cortex_m33f_debug = {
    name = "arm_clang_cortex_m33f_debug"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m33f +
                        [ "$dir_pw_build:optimize_debugging" ]
    }
  }
  cortex_m33f_speed_optimized = {
    name = "arm_clang_cortex_m33f_speed_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m33f +
                        [ "$dir_pw_build:optimize_speed" ]
    }
  }
  cortex_m33f_size_optimized = {
    name = "arm_clang_cortex_m33f_size_optimized"
    forward_variables_from(_arm_clang_toolchain, "*")
    defaults = {
      forward_variables_from(pigweed_arm_clang_defaults, "*")
      default_configs = pigweed_default_configs + _cortex_m33f +
                        [ "$dir_pw_build:optimize_size_clang" ]
    }
  }
}

# This list just contains the members of the above scope for convenience to make
# it trivial to generate all the toolchains in this file via a
# `generate_toolchains` target.
pw_toolchain_arm_clang_list = [
  pw_toolchain_arm_clang.cortex_m0plus_debug,
  pw_toolchain_arm_clang.cortex_m0plus_speed_optimized,
  pw_toolchain_arm_clang.cortex_m0plus_size_optimized,
  pw_toolchain_arm_clang.cortex_m3_debug,
  pw_toolchain_arm_clang.cortex_m3_speed_optimized,
  pw_toolchain_arm_clang.cortex_m3_size_optimized,
  pw_toolchain_arm_clang.cortex_m4_debug,
  pw_toolchain_arm_clang.cortex_m4_speed_optimized,
  pw_toolchain_arm_clang.cortex_m4_size_optimized,
  pw_toolchain_arm_clang.cortex_m4f_debug,
  pw_toolchain_arm_clang.cortex_m4f_speed_optimized,
  pw_toolchain_arm_clang.cortex_m4f_size_optimized,
  pw_toolchain_arm_clang.cortex_m7_debug,
  pw_toolchain_arm_clang.cortex_m7_speed_optimized,
  pw_toolchain_arm_clang.cortex_m7_size_optimized,
  pw_toolchain_arm_clang.cortex_m7f_debug,
  pw_toolchain_arm_clang.cortex_m7f_speed_optimized,
  pw_toolchain_arm_clang.cortex_m7f_size_optimized,
  pw_toolchain_arm_clang.cortex_m33_debug,
  pw_toolchain_arm_clang.cortex_m33_speed_optimized,
  pw_toolchain_arm_clang.cortex_m33_size_optimized,
  pw_toolchain_arm_clang.cortex_m33f_debug,
  pw_toolchain_arm_clang.cortex_m33f_speed_optimized,
  pw_toolchain_arm_clang.cortex_m33f_size_optimized,
]