| # Copyright 2020 The Bazel Authors. All rights reserved. |
| # |
| # 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 |
| # |
| # 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. |
| |
| """Definition of incoming apple crosstool transition.""" |
| |
| transition = _builtins.toplevel.transition |
| |
| def _cpu_string(platform_type, settings): |
| arch = _determine_single_architecture(platform_type, settings) |
| if platform_type == MACOS: |
| return "darwin_{}".format(arch) |
| |
| return "{}_{}".format(platform_type, arch) |
| |
| def _determine_single_architecture(platform_type, settings): |
| apple_split_cpu = settings["//command_line_option:apple_split_cpu"] |
| if apple_split_cpu != None and len(apple_split_cpu) > 0: |
| return apple_split_cpu |
| if platform_type == IOS: |
| ios_cpus = settings["//command_line_option:ios_multi_cpus"] |
| if len(ios_cpus) > 0: |
| return ios_cpus[0] |
| cpu_value = settings["//command_line_option:cpu"] |
| if cpu_value.startswith(IOS_CPU_PREFIX): |
| return cpu_value[len(IOS_CPU_PREFIX):] |
| if cpu_value == "darwin_arm64": |
| return "sim_arm64" |
| return DEFAULT_IOS_CPU |
| if platform_type == WATCHOS: |
| watchos_cpus = settings["//command_line_option:watchos_cpus"] |
| if len(watchos_cpus) == 0: |
| return DEFAULT_WATCHOS_CPU |
| return watchos_cpus[0] |
| if platform_type == TVOS: |
| tvos_cpus = settings["//command_line_option:tvos_cpus"] |
| if len(tvos_cpus) == 0: |
| return DEFAULT_TVOS_CPU |
| return tvos_cpus[0] |
| if platform_type == MACOS: |
| macos_cpus = settings["//command_line_option:macos_cpus"] |
| if macos_cpus: |
| return macos_cpus[0] |
| cpu_value = settings["//command_line_option:cpu"] |
| if cpu_value.startswith(DARWIN_CPU_PREFIX): |
| return cpu_value[len(DARWIN_CPU_PREFIX):] |
| return DEFAULT_MACOS_CPU |
| if platform_type == CATALYST: |
| catalyst_cpus = settings["//command_line_option:catalyst_cpus"] |
| if len(catalyst_cpus) == 0: |
| return DEFAULT_CATALYST_CPU |
| return catalyst_cpus[0] |
| |
| fail("ERROR: Unhandled platform type {}".format(platform_type)) |
| |
| IOS = "ios" |
| WATCHOS = "watchos" |
| TVOS = "tvos" |
| MACOS = "macos" |
| CATALYST = "catalyst" |
| IOS_CPU_PREFIX = "ios_" |
| DARWIN_CPU_PREFIX = "darwin_" |
| DEFAULT_IOS_CPU = "x86_64" |
| DEFAULT_WATCHOS_CPU = "i386" |
| DEFAULT_TVOS_CPU = "x86_64" |
| DEFAULT_MACOS_CPU = "x86_64" |
| DEFAULT_CATALYST_CPU = "x86_64" |
| |
| def _output_dictionary(settings, cpu, platform_type, platforms): |
| return { |
| "//command_line_option:apple configuration distinguisher": "applebin_" + platform_type, |
| "//command_line_option:compiler": settings["//command_line_option:apple_compiler"], |
| "//command_line_option:cpu": cpu, |
| "//command_line_option:crosstool_top": ( |
| settings["//command_line_option:apple_crosstool_top"] |
| ), |
| "//command_line_option:platforms": platforms, |
| "//command_line_option:fission": [], |
| "//command_line_option:grte_top": settings["//command_line_option:apple_grte_top"], |
| } |
| |
| def _apple_crosstool_transition_impl(settings, attr): |
| platform_type = str(settings["//command_line_option:apple_platform_type"]) |
| cpu = _cpu_string(platform_type, settings) |
| if settings["//command_line_option:incompatible_enable_apple_toolchain_resolution"]: |
| platforms = ( |
| settings["//command_line_option:apple_platforms"] or |
| settings["//command_line_option:platforms"] |
| ) |
| return _output_dictionary(settings, cpu, platform_type, platforms) |
| crosstools_are_equal = ( |
| settings["//command_line_option:crosstool_top"] == |
| settings["//command_line_option:apple_crosstool_top"] |
| ) |
| if cpu == settings["//command_line_option:cpu"] and crosstools_are_equal: |
| # No changes necessary. |
| return {} |
| |
| # Ensure platforms aren't set so that platform mapping can take place. |
| return _output_dictionary(settings, cpu, platform_type, []) |
| |
| _apple_rule_base_transition_inputs = [ |
| "//command_line_option:apple configuration distinguisher", |
| "//command_line_option:apple_compiler", |
| "//command_line_option:apple_platform_type", |
| "//command_line_option:apple_platforms", |
| "//command_line_option:apple_crosstool_top", |
| "//command_line_option:crosstool_top", |
| "//command_line_option:apple_split_cpu", |
| "//command_line_option:apple_grte_top", |
| "//command_line_option:cpu", |
| "//command_line_option:ios_multi_cpus", |
| "//command_line_option:macos_cpus", |
| "//command_line_option:tvos_cpus", |
| "//command_line_option:watchos_cpus", |
| "//command_line_option:catalyst_cpus", |
| "//command_line_option:platforms", |
| "//command_line_option:fission", |
| "//command_line_option:grte_top", |
| "//command_line_option:incompatible_enable_apple_toolchain_resolution", |
| ] |
| _apple_rule_base_transition_outputs = [ |
| "//command_line_option:apple configuration distinguisher", |
| "//command_line_option:compiler", |
| "//command_line_option:cpu", |
| "//command_line_option:crosstool_top", |
| "//command_line_option:platforms", |
| "//command_line_option:fission", |
| "//command_line_option:grte_top", |
| ] |
| |
| apple_crosstool_transition = transition( |
| implementation = _apple_crosstool_transition_impl, |
| inputs = _apple_rule_base_transition_inputs, |
| outputs = _apple_rule_base_transition_outputs, |
| ) |
