471 lines
17 KiB
Python
471 lines
17 KiB
Python
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# NOTE: THIS FILE IS EXPERIMENTAL FOR THE BAZEL MIGRATION AND NOT USED FOR
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# YOUR BUILDS CURRENTLY.
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#
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# It is not yet the source of truth for your build. If you're looking to modify
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# the build file, modify the Android.bp file instead. Do *not* modify this file
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# unless you have coordinated with the team managing the Soong to Bazel
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# migration.
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"""
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Toolchain config
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"""
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load("@bazel_skylib//rules:common_settings.bzl", "bool_flag")
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load("@env//:env.bzl", "env")
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load(
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":cc_toolchain_config.bzl",
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"android_cc_toolchain",
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"clang_version",
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"expand_feature_flags",
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"toolchain_definition",
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)
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load(
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":cc_toolchain_constants.bzl",
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"arch_to_variants",
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"arches",
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"device_compatibility_flags_non_darwin",
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"device_compatibility_flags_non_windows",
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"generated_config_constants",
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"libclang_rt_prebuilt_map",
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"libclang_ubsan_minimal_rt_prebuilt_map",
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"variant_name",
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"x86_64_host_toolchains",
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"x86_64_musl_host_toolchains",
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"x86_host_toolchains",
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"x86_musl_host_toolchains",
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_bionic_crt = "bionic_crt",
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_musl_crt = "musl_crt",
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)
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load(
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":cc_toolchain_features_cfi_test.bzl",
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"cc_toolchain_features_cfi_test_suite",
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)
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load(
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":cc_toolchain_features_pack_relocation_test.bzl",
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"cc_toolchain_features_pack_relocation_test_suite",
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)
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load(
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":cc_toolchain_features_thinlto_test.bzl",
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"cc_toolchain_features_lto_test_suite",
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)
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load(
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":cc_toolchain_features_ubsan_test.bzl",
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"cc_toolchain_features_ubsan_test_suite",
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)
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load(
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":cc_toolchain_features_env_based_flags_test.bzl",
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"cc_toolchain_features_env_based_flags_test_suite",
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)
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load(
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":cc_toolchain_features_flag_order_test.bzl",
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"cc_toolchain_features_flag_order_test_suite",
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)
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load(
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":cc_toolchain_features_linker_alignment_test.bzl",
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"cc_toolchain_features_linker_alignment_test_suite",
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)
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load("//build/bazel/flags:common.bzl", "is_env_true")
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load("//build/bazel/platforms/arch/variants:constants.bzl", _arch_constants = "constants")
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filegroup(name = "empty")
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# Different clang versions are configured here.
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clang_version(
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name = "clang",
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directory = generated_config_constants.ClangVersion,
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includes = [
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"lib/clang/%s/include" % generated_config_constants.ClangShortVersion,
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],
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)
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# x86_64 toolchain definitions
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[
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android_cc_toolchain(
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name = "cc_toolchain_x86_64" + variant_name(variant),
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clang_version = ":clang",
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clang_version_directory = generated_config_constants.ClangVersion,
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compiler_flags = generated_config_constants.X86_64ToolchainCflags +
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generated_config_constants.X86_64ArchVariantCflags[variant.arch_variant] +
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expand_feature_flags(
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variant.arch_variant,
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_arch_constants.AndroidArchToVariantToFeatures[arches.X86_64],
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generated_config_constants.X86_64ArchFeatureCflags,
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) + generated_config_constants.X86_64Cflags,
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crt = _bionic_crt,
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libclang_rt_builtin = libclang_rt_prebuilt_map["//build/bazel/platforms/os_arch:android_x86_64"],
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libclang_rt_ubsan_minimal = libclang_ubsan_minimal_rt_prebuilt_map["//build/bazel/platforms/os_arch:android_x86_64"],
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linker_flags = generated_config_constants.X86_64ToolchainLdflags + generated_config_constants.X86_64Lldflags,
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target_arch = arches.X86_64,
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target_os = "android",
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toolchain_identifier = "x86_64-toolchain",
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)
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for variant in arch_to_variants[arches.X86_64]
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]
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# x86 toolchain definitions.
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[
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android_cc_toolchain(
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name = "cc_toolchain_x86" + variant_name(variant),
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clang_version = ":clang",
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clang_version_directory = generated_config_constants.ClangVersion,
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compiler_flags = generated_config_constants.X86ToolchainCflags +
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generated_config_constants.X86ArchVariantCflags[variant.arch_variant] +
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expand_feature_flags(
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variant.arch_variant,
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_arch_constants.AndroidArchToVariantToFeatures[arches.X86],
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generated_config_constants.X86ArchFeatureCflags,
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) + generated_config_constants.X86Cflags,
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crt = _bionic_crt,
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libclang_rt_builtin = libclang_rt_prebuilt_map["//build/bazel/platforms/os_arch:android_x86"],
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libclang_rt_ubsan_minimal = libclang_ubsan_minimal_rt_prebuilt_map["//build/bazel/platforms/os_arch:android_x86"],
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linker_flags = generated_config_constants.X86ToolchainLdflags + generated_config_constants.X86Lldflags,
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target_arch = arches.X86,
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target_os = "android",
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toolchain_identifier = "x86-toolchain",
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)
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for variant in arch_to_variants[arches.X86]
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]
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# arm64 toolchain definitions.
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[
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android_cc_toolchain(
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name = "cc_toolchain_arm64" + variant_name(variant),
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clang_version = ":clang",
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clang_version_directory = generated_config_constants.ClangVersion,
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compiler_flags = generated_config_constants.Arm64Cflags +
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generated_config_constants.Arm64ArchVariantCflags[variant.arch_variant] +
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generated_config_constants.Arm64CpuVariantCflags.get(
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variant.cpu_variant,
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[],
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),
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crt = _bionic_crt,
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libclang_rt_builtin = libclang_rt_prebuilt_map["//build/bazel/platforms/os_arch:android_arm64"],
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libclang_rt_ubsan_minimal = libclang_ubsan_minimal_rt_prebuilt_map["//build/bazel/platforms/os_arch:android_arm64"],
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linker_flags = generated_config_constants.Arm64CpuVariantLdflags.get(
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variant.cpu_variant,
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[],
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) + generated_config_constants.Arm64Lldflags,
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target_arch = arches.Arm64,
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target_os = "android",
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toolchain_identifier = "arm64-toolchain",
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)
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for variant in arch_to_variants[arches.Arm64]
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]
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# arm32 toolchain definitions.
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[
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android_cc_toolchain(
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name = "cc_toolchain_arm" + variant_name(variant),
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clang_version = ":clang",
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clang_version_directory = generated_config_constants.ClangVersion,
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compiler_flags = generated_config_constants.ArmCflags +
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generated_config_constants.ArmToolchainCflags +
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generated_config_constants.ArmArchVariantCflags[variant.arch_variant] +
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generated_config_constants.ArmCpuVariantCflags.get(
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variant.cpu_variant,
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[],
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),
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crt = _bionic_crt,
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libclang_rt_builtin = libclang_rt_prebuilt_map["//build/bazel/platforms/os_arch:android_arm"],
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libclang_rt_ubsan_minimal = libclang_ubsan_minimal_rt_prebuilt_map["//build/bazel/platforms/os_arch:android_arm"],
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# do not pass "ld"-only flags as Bazel is only using lld. Ensure that all flags are lld-compatible.
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linker_flags = generated_config_constants.ArmLldflags,
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target_arch = arches.Arm,
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target_os = "android",
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toolchain_identifier = "arm-toolchain",
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)
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for variant in arch_to_variants[arches.Arm]
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]
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# Toolchain to compile for the linux host.
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# TODO(b/186628704): automatically generate from Soong.
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android_cc_toolchain(
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name = "cc_toolchain_x86_64_linux_host",
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clang_version = ":clang",
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clang_version_directory = generated_config_constants.ClangVersion,
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compiler_flags = generated_config_constants.LinuxCflags +
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generated_config_constants.LinuxGlibcCflags +
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generated_config_constants.LinuxX8664Cflags +
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# Added by stl.go for non-bionic toolchains.
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[
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"-nostdinc++",
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],
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crt = False,
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gcc_toolchain = generated_config_constants.LinuxGccRoot,
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libclang_rt_builtin = libclang_rt_prebuilt_map["//build/bazel/platforms/os_arch:linux_glibc_x86_64"],
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libclang_rt_ubsan_minimal = libclang_ubsan_minimal_rt_prebuilt_map["//build/bazel/platforms/os_arch:linux_glibc_x86_64"],
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linker_flags = generated_config_constants.LinuxGlibcLdflags +
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generated_config_constants.LinuxLdflags +
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generated_config_constants.LinuxX8664Ldflags +
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device_compatibility_flags_non_windows +
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device_compatibility_flags_non_darwin,
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rtti_toggle = False,
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target_arch = "x86_64",
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target_flags = ["--target=x86_64-linux-gnu"],
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target_os = "linux_glibc",
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toolchain_identifier = "x86_64-toolchain",
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)
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# Toolchain to compile for the linux x86 target.
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android_cc_toolchain(
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name = "cc_toolchain_x86_linux_host",
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clang_version = ":clang",
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clang_version_directory = generated_config_constants.ClangVersion,
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compiler_flags = generated_config_constants.LinuxCflags +
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generated_config_constants.LinuxGlibcCflags +
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generated_config_constants.LinuxX86Cflags +
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# Added by stl.go for non-bionic toolchains.
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[
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"-nostdinc++",
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],
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crt = False,
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gcc_toolchain = generated_config_constants.LinuxGccRoot,
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libclang_rt_builtin = libclang_rt_prebuilt_map["//build/bazel/platforms/os_arch:linux_glibc_x86"],
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libclang_rt_ubsan_minimal = libclang_ubsan_minimal_rt_prebuilt_map["//build/bazel/platforms/os_arch:linux_glibc_x86"],
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linker_flags = generated_config_constants.LinuxGlibcLdflags +
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generated_config_constants.LinuxLdflags +
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generated_config_constants.LinuxX86Ldflags +
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device_compatibility_flags_non_windows +
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device_compatibility_flags_non_darwin,
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rtti_toggle = False,
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target_arch = "x86",
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target_flags = ["--target=i686-linux-gnu"],
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target_os = "linux_glibc",
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toolchain_identifier = "x86-toolchain",
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)
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# Toolchain to compile for the linux host with musl libc.
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android_cc_toolchain(
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name = "cc_toolchain_x86_64_linux_musl_host",
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clang_version = ":clang",
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clang_version_directory = generated_config_constants.ClangVersion,
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compiler_flags = generated_config_constants.LinuxCflags +
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generated_config_constants.LinuxMuslCflags +
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generated_config_constants.LinuxX8664Cflags +
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# Added by stl.go for non-bionic toolchains.
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[
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"-nostdinc++",
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],
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crt = _musl_crt,
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gcc_toolchain = generated_config_constants.LinuxGccRoot,
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libclang_rt_builtin = libclang_rt_prebuilt_map["//build/bazel/platforms/os_arch:linux_musl_x86_64"],
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libclang_rt_ubsan_minimal = libclang_ubsan_minimal_rt_prebuilt_map["//build/bazel/platforms/os_arch:linux_musl_x86_64"],
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linker_flags = generated_config_constants.LinuxMuslLdflags +
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generated_config_constants.LinuxLdflags +
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generated_config_constants.LinuxX8664Ldflags,
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rtti_toggle = False,
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target_arch = "x86_64",
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target_flags = ["--target=x86_64-linux-musl"],
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target_os = "linux_musl",
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toolchain_identifier = "x86_64-toolchain",
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)
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# Toolchain to compile for the linux x86 host with musl libc.
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android_cc_toolchain(
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name = "cc_toolchain_x86_linux_musl_host",
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clang_version = ":clang",
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clang_version_directory = generated_config_constants.ClangVersion,
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compiler_flags = generated_config_constants.LinuxCflags +
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generated_config_constants.LinuxMuslCflags +
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generated_config_constants.LinuxX86Cflags +
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# Added by stl.go for non-bionic toolchains.
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[
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"-nostdinc++",
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],
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crt = _musl_crt,
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gcc_toolchain = generated_config_constants.LinuxGccRoot,
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libclang_rt_builtin = libclang_rt_prebuilt_map["//build/bazel/platforms/os_arch:linux_musl_x86"],
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libclang_rt_ubsan_minimal = libclang_ubsan_minimal_rt_prebuilt_map["//build/bazel/platforms/os_arch:linux_musl_x86"],
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linker_flags = generated_config_constants.LinuxMuslLdflags +
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generated_config_constants.LinuxLdflags +
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generated_config_constants.LinuxX86Ldflags,
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rtti_toggle = False,
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target_arch = "x86",
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target_flags = ["--target=i686-linux-musl"],
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target_os = "linux_musl",
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toolchain_identifier = "x86-toolchain",
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)
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toolchain_type(name = "nocrt_toolchain")
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# Device toolchains
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[
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[
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[
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toolchain_definition(arch, variant, nocrt)
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for nocrt in [
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True,
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False,
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]
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]
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for variant in variants
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]
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for arch, variants in arch_to_variants.items()
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]
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# Toolchains for linux host (x86_64) archs
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[
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toolchain(
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name = "%s_def" % toolchain_name,
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exec_compatible_with = [
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"//build/bazel/platforms/arch:x86_64",
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"//build/bazel/platforms/os:linux_glibc",
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],
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target_compatible_with = [
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"//build/bazel/platforms/arch:x86_64",
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"//build/bazel/platforms/os:linux_glibc",
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],
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toolchain = toolchain_name,
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toolchain_type = toolchain_type,
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)
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for (toolchain_name, toolchain_type) in x86_64_host_toolchains
|
||
|
|
]
|
||
|
|
|
||
|
|
# Toolchains for linux target (non-host) x86 arch
|
||
|
|
[
|
||
|
|
toolchain(
|
||
|
|
name = "%s_def" % toolchain_name,
|
||
|
|
exec_compatible_with = [
|
||
|
|
"//build/bazel/platforms/arch:x86_64",
|
||
|
|
"//build/bazel/platforms/os:linux_glibc",
|
||
|
|
],
|
||
|
|
target_compatible_with = [
|
||
|
|
"//build/bazel/platforms/arch:x86",
|
||
|
|
"//build/bazel/platforms/os:linux_glibc",
|
||
|
|
],
|
||
|
|
toolchain = toolchain_name,
|
||
|
|
toolchain_type = toolchain_type,
|
||
|
|
)
|
||
|
|
for (toolchain_name, toolchain_type) in x86_host_toolchains
|
||
|
|
]
|
||
|
|
|
||
|
|
# Toolchains for linux musl host (x86_64) archs
|
||
|
|
[
|
||
|
|
toolchain(
|
||
|
|
name = "%s_def" % toolchain_name,
|
||
|
|
exec_compatible_with = [
|
||
|
|
"//build/bazel/platforms/arch:x86_64",
|
||
|
|
"//build/bazel/platforms/os:linux_musl",
|
||
|
|
],
|
||
|
|
target_compatible_with = [
|
||
|
|
"//build/bazel/platforms/arch:x86_64",
|
||
|
|
"//build/bazel/platforms/os:linux_musl",
|
||
|
|
],
|
||
|
|
toolchain = toolchain_name,
|
||
|
|
toolchain_type = toolchain_type,
|
||
|
|
)
|
||
|
|
for (toolchain_name, toolchain_type) in x86_64_musl_host_toolchains
|
||
|
|
]
|
||
|
|
|
||
|
|
# Toolchains for linux musl target (non-host) x86 arch
|
||
|
|
[
|
||
|
|
toolchain(
|
||
|
|
name = "%s_def" % toolchain_name,
|
||
|
|
exec_compatible_with = [
|
||
|
|
"//build/bazel/platforms/arch:x86_64",
|
||
|
|
"//build/bazel/platforms/os:linux_musl",
|
||
|
|
],
|
||
|
|
target_compatible_with = [
|
||
|
|
"//build/bazel/platforms/arch:x86",
|
||
|
|
"//build/bazel/platforms/os:linux_musl",
|
||
|
|
],
|
||
|
|
toolchain = toolchain_name,
|
||
|
|
toolchain_type = toolchain_type,
|
||
|
|
)
|
||
|
|
for (toolchain_name, toolchain_type) in x86_musl_host_toolchains
|
||
|
|
]
|
||
|
|
|
||
|
|
cc_import(
|
||
|
|
name = "libclang_rt",
|
||
|
|
static_library = select(libclang_rt_prebuilt_map),
|
||
|
|
)
|
||
|
|
|
||
|
|
[alias(
|
||
|
|
name = "llvm-%s" % tool,
|
||
|
|
actual = generated_config_constants.ClangVersion + "/bin/llvm-%s" % tool,
|
||
|
|
visibility = ["//visibility:public"],
|
||
|
|
) for tool in [
|
||
|
|
"ar",
|
||
|
|
"readelf",
|
||
|
|
"objcopy",
|
||
|
|
"strip",
|
||
|
|
]]
|
||
|
|
|
||
|
|
[alias(
|
||
|
|
name = tool,
|
||
|
|
actual = generated_config_constants.ClangVersion + "/bin/" + tool,
|
||
|
|
visibility = ["//visibility:public"],
|
||
|
|
) for tool in [
|
||
|
|
"clang-tidy",
|
||
|
|
"clang-tidy.sh",
|
||
|
|
"clang-tidy.real",
|
||
|
|
]]
|
||
|
|
|
||
|
|
# Test tools used by Bazel tests.
|
||
|
|
filegroup(
|
||
|
|
name = "test_tools",
|
||
|
|
srcs = [
|
||
|
|
generated_config_constants.ClangVersion + "/bin/llvm-readelf",
|
||
|
|
generated_config_constants.ClangVersion + "/bin/llvm-nm",
|
||
|
|
],
|
||
|
|
visibility = ["//build/bazel/tests:__subpackages__"],
|
||
|
|
)
|
||
|
|
|
||
|
|
cc_toolchain_features_cfi_test_suite(
|
||
|
|
name = "cc_toolchain_features_cfi_tests",
|
||
|
|
)
|
||
|
|
|
||
|
|
cc_toolchain_features_pack_relocation_test_suite(
|
||
|
|
name = "cc_toolchain_features_pack_relocation_tests",
|
||
|
|
)
|
||
|
|
|
||
|
|
cc_toolchain_features_lto_test_suite(
|
||
|
|
name = "cc_toolchain_features_thinlto_tests",
|
||
|
|
)
|
||
|
|
|
||
|
|
cc_toolchain_features_ubsan_test_suite(
|
||
|
|
name = "cc_toolchain_features_ubsan_tests",
|
||
|
|
)
|
||
|
|
|
||
|
|
cc_toolchain_features_env_based_flags_test_suite(
|
||
|
|
name = "cc_toolchain_features_env_based_flags_tests",
|
||
|
|
)
|
||
|
|
|
||
|
|
cc_toolchain_features_flag_order_test_suite(
|
||
|
|
name = "cc_toolchain_features_flag_order_tests",
|
||
|
|
)
|
||
|
|
|
||
|
|
cc_toolchain_features_linker_alignment_test_suite(
|
||
|
|
name = "cc_toolchain_features_linker_alignment_tests",
|
||
|
|
)
|
||
|
|
|
||
|
|
bool_flag(
|
||
|
|
name = "auto_zero_initialize_env",
|
||
|
|
build_setting_default = is_env_true(env.get("AUTO_ZERO_INITIALIZE")),
|
||
|
|
)
|
||
|
|
|
||
|
|
bool_flag(
|
||
|
|
name = "auto_pattern_initialize_env",
|
||
|
|
build_setting_default = is_env_true(env.get("AUTO_PATTERN_INITIALIZE")),
|
||
|
|
)
|
||
|
|
|
||
|
|
bool_flag(
|
||
|
|
name = "auto_uninitialize_env",
|
||
|
|
build_setting_default = is_env_true(env.get("AUTO_UNINITIALIZE")),
|
||
|
|
)
|
||
|
|
|
||
|
|
bool_flag(
|
||
|
|
name = "use_ccache_env",
|
||
|
|
build_setting_default = is_env_true(env.get("USE_CCACHE")),
|
||
|
|
)
|
||
|
|
|
||
|
|
bool_flag(
|
||
|
|
name = "llvm_next_env",
|
||
|
|
build_setting_default = is_env_true(env.get("LLVM_NEXT")),
|
||
|
|
)
|
||
|
|
|
||
|
|
bool_flag(
|
||
|
|
name = "allow_unknown_warning_option_env",
|
||
|
|
build_setting_default = is_env_true(env.get("ALLOW_UNKNOWN_WARNING_OPTION")),
|
||
|
|
)
|