# Copyright 2021 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/config/ios/ios_sdk.gni")
import("//build/toolchain/apple/toolchain.gni")

# Specialisation of the apple_toolchain template to declare a single toolchain
# and its tools to build target for iOS platform.
template("ios_single_toolchain") {
  assert(defined(invoker.toolchain_args),
         "Toolchains must declare toolchain_args")

  apple_toolchain(target_name) {
    forward_variables_from(invoker, "*", [ "toolchain_args" ])

    sdk_developer_dir = ios_sdk_developer_dir
    deployment_target = ios_deployment_target
    target_environment = target_environment
    bin_path = ios_bin_path

    toolchain_args = {
      forward_variables_from(invoker.toolchain_args, "*")
      xcode_build = xcode_build
      current_os = "ios"

      # TODO(crbug.com/408032145): Add ptrauth support to lld, remove this.
      if (current_cpu == "arm64e") {
        use_lld = false
      }

      # Disable partition alloc for app extensions except for blink.
      if (ios_is_app_extension && !use_blink) {
        # As use_partition_alloc is defined outside of //build, check that
        # the build is part of chromium before overriding the variable.
        if (build_with_chromium) {
          use_partition_alloc = false
        }
      }
    }
  }
}

# Template to declare all the toolchains for a given architecture for iOS.
template("ios_all_toolchains") {
  assert(defined(invoker.toolchain_args),
         "Toolchains must declare toolchain_args")

  ios_single_toolchain(target_name) {
    forward_variables_from(invoker, "*", [ "toolchain_args" ])
    toolchain_args = {
      forward_variables_from(invoker.toolchain_args, "*")
    }
  }

  ios_single_toolchain(target_name + "_app_ext") {
    forward_variables_from(invoker, "*", [ "toolchain_args" ])
    toolchain_args = {
      forward_variables_from(invoker.toolchain_args, "*")
      ios_is_app_extension = true
    }
  }
}

ios_all_toolchains("ios_clang_arm64") {
  toolchain_args = {
    current_cpu = "arm64"
  }
}

ios_all_toolchains("ios_clang_arm64e") {
  toolchain_args = {
    current_cpu = "arm64e"
  }
}

ios_all_toolchains("ios_clang_x64") {
  toolchain_args = {
    current_cpu = "x64"
  }
}