BUILD.bazel - platform/prebuilts/clang/host/linux-x86 - Git at Google

 # NOTE: THIS FILE IS EXPERIMENTAL FOR THE BAZEL MIGRATION AND NOT USED FOR
 # YOUR BUILDS CURRENTLY.
 #
 # It is not yet the source of truth for your build. If you're looking to modify
 # the build file, modify the Android.bp file instead. Do *not* modify this file
 # unless you have coordinated with the team managing the Soong to Bazel
 # migration.

 package(default_visibility = ["//visibility:public"])

 # Toolchain config
 filegroup(name = "empty")

 load(":cc_toolchain_config.bzl", "android_cc_toolchain", "clang_version", "expand_feature_flags")
 load(":cc_toolchain_constants.bzl", "device_compatibility_flags_non_windows", "device_compatibility_flags_non_darwin", "generated_constants")

 # Different clang versions are configured here.
 clang_version(
     name = "clang",
     directory = generated_constants.CLANG_DEFAULT_VERSION,
     includes = [
         "lib64/clang/%s/include" % generated_constants.CLANG_DEFAULT_SHORT_VERSION,
     ],
 )

 _LIBCLANG_RT_PREFIX = "%s/lib64/clang/%s/lib/linux" % (
     generated_constants.CLANG_DEFAULT_VERSION,
     generated_constants.CLANG_DEFAULT_SHORT_VERSION,
 )

 _LIBCLANG_RT_PREBUILT_MAP = {
     "//build/bazel/platforms/os_arch:android_arm": _LIBCLANG_RT_PREFIX + "/libclang_rt.builtins-arm-android.a",
     "//build/bazel/platforms/os_arch:android_arm64": _LIBCLANG_RT_PREFIX + "/libclang_rt.builtins-aarch64-android.a",
     "//build/bazel/platforms/os_arch:android_x86": _LIBCLANG_RT_PREFIX + "/libclang_rt.builtins-i686-android.a",
     "//build/bazel/platforms/os_arch:android_x86_64": _LIBCLANG_RT_PREFIX + "/libclang_rt.builtins-x86_64-android.a",
     "//build/bazel/platforms/os_arch:linux_bionic_x86_64": _LIBCLANG_RT_PREFIX + "/libclang_rt.builtins-x86_64-android.a",
     "//build/bazel/platforms/os_arch:linux_glibc_x86": _LIBCLANG_RT_PREFIX + "/libclang_rt.builtins-i386.a",
     "//build/bazel/platforms/os_arch:linux_glibc_x86_64": _LIBCLANG_RT_PREFIX + "/libclang_rt.builtins-x86_64.a",
     "//conditions:default": None,
 }

 # x86_64 toolchain definition.
 android_cc_toolchain(
     name = "cc_toolchain_x86_64",
     target_os = "android",
     target_arch = "x86_64",
     clang_version = ":clang",
     clang_version_directory = generated_constants.CLANG_DEFAULT_VERSION,
     libclang_rt_builtin = _LIBCLANG_RT_PREBUILT_MAP["//build/bazel/platforms/os_arch:android_x86_64"],
     linker_flags = generated_constants.X86_64ToolchainLdflags + generated_constants.X86_64Lldflags,
     target_flags = [
                        "--target=x86_64-linux-android10000",
                    ] + generated_constants.X86_64ToolchainCflags +
                    generated_constants.X86_64ArchVariantCflags[""] +
                    expand_feature_flags(
                        generated_constants.X86_64DefaultArchVariantFeatures,
                        generated_constants.X86_64ArchFeatureCflags,
                    ) + generated_constants.X86_64Cflags,
     toolchain_identifier = "x86_64-toolchain",
 )

 # x86 toolchain definition.
 android_cc_toolchain(
     name = "cc_toolchain_x86",
     target_os = "android",
     target_arch = "x86",
     clang_version = ":clang",
     clang_version_directory = generated_constants.CLANG_DEFAULT_VERSION,
     libclang_rt_builtin = _LIBCLANG_RT_PREBUILT_MAP["//build/bazel/platforms/os_arch:android_x86"],
     linker_flags = generated_constants.X86ToolchainLdflags + generated_constants.X86Lldflags,
     target_flags = [
                        "--target=i686-linux-android10000",
                    ] + generated_constants.X86ToolchainCflags +
                    generated_constants.X86ArchVariantCflags[""] +
                    expand_feature_flags(
                        generated_constants.X86_64DefaultArchVariantFeatures,
                        generated_constants.X86ArchFeatureCflags,
                    ) + generated_constants.X86Cflags,
     toolchain_identifier = "x86-toolchain",
 )

 # arm64 toolchain definition.
 android_cc_toolchain(
     name = "cc_toolchain_arm64",
     target_os = "android",
     target_arch = "arm64",
     clang_version = ":clang",
     clang_version_directory = generated_constants.CLANG_DEFAULT_VERSION,
     libclang_rt_builtin = _LIBCLANG_RT_PREBUILT_MAP["//build/bazel/platforms/os_arch:android_arm64"],
     linker_flags = generated_constants.Arm64Lldflags,
     target_flags = [
                        "--target=aarch64-linux-android10000",
                    ] + generated_constants.Arm64ArchVariantCflags["armv8-a"] +
                    generated_constants.Arm64CpuVariantCflags.get(
                        "",
                        default = [],
                    ) + generated_constants.Arm64Cflags,
     toolchain_identifier = "arm64-toolchain",
 )

 # arm32 toolchain definition.
 android_cc_toolchain(
     name = "cc_toolchain_arm",
     target_os = "android",
     target_arch = "arm",
     clang_version = ":clang",
     clang_version_directory = generated_constants.CLANG_DEFAULT_VERSION,
     libclang_rt_builtin = _LIBCLANG_RT_PREBUILT_MAP["//build/bazel/platforms/os_arch:android_arm"],
     linker_flags = generated_constants.ArmLldflags,
     target_flags = ["--target=" + generated_constants.ArmClangTriple + "10000"] +
                    generated_constants.ArmToolchainCflags +
                    generated_constants.ArmArchVariantCflags["armv7-a-neon"] +
                    generated_constants.ArmCpuVariantCflags.get("", []) +
                    generated_constants.ArmCflags,
     toolchain_identifier = "arm-toolchain",
 )

 # Toolchain to compile for the linux host.
 # TODO(b/186628704): automatically generate from Soong.
 android_cc_toolchain(
     name = "cc_toolchain_x86_64_linux_host",
     target_os = "linux_glibc",
     target_arch = "x86_64",
     clang_version = ":clang",
     clang_version_directory = generated_constants.CLANG_DEFAULT_VERSION,
     crt = False,
     libclang_rt_builtin = _LIBCLANG_RT_PREBUILT_MAP["//build/bazel/platforms/os_arch:linux_glibc_x86_64"],
     linker_flags = generated_constants.LinuxGlibcLdflags +
                    generated_constants.LinuxLdflags +
                    generated_constants.LinuxX8664Ldflags +
                    device_compatibility_flags_non_windows +
                    device_compatibility_flags_non_darwin,
     target_flags = ["--target=x86_64-linux-gnu"],
     compiler_flags = generated_constants.LinuxCflags +
                      generated_constants.LinuxGlibcCflags +
                      generated_constants.LinuxX8664Cflags +
                      # Added by stl.go for non-bionic toolchains.
                      ["-nostdinc++"],
     gcc_toolchain = generated_constants.LinuxGccRoot,
     toolchain_identifier = "x86_64-toolchain",
     rtti_toggle = False,
 )

 # Toolchain to compile for the linux x86 target.
 android_cc_toolchain(
     name = "cc_toolchain_x86_linux_host",
     target_os = "linux_glibc",
     target_arch = "x86",
     clang_version = ":clang",
     clang_version_directory = generated_constants.CLANG_DEFAULT_VERSION,
     crt = False,
     libclang_rt_builtin = _LIBCLANG_RT_PREBUILT_MAP["//build/bazel/platforms/os_arch:linux_glibc_x86"],
     linker_flags = generated_constants.LinuxGlibcLdflags +
                    generated_constants.LinuxLdflags +
                    generated_constants.LinuxX86Ldflags +
                    device_compatibility_flags_non_windows +
                    device_compatibility_flags_non_darwin,
     target_flags = ["--target=i686-linux-gnu"],
     compiler_flags = generated_constants.LinuxCflags +
                      generated_constants.LinuxGlibcCflags +
                      generated_constants.LinuxX86Cflags +
                      # Added by stl.go for non-bionic toolchains.
                      ["-nostdinc++"],
     gcc_toolchain = generated_constants.LinuxGccRoot,
     toolchain_identifier = "x86-toolchain",
     rtti_toggle = False,
 )

 toolchain_type(name = "nocrt_toolchain")

 ARCHITECTURES = ["x86_64", "x86", "arm", "arm64"]

 # Device toolchains with crt libraries
 [
     toolchain(
         name = "cc_toolchain_%s_def" % arch,
         exec_compatible_with = [
             "//build/bazel/platforms/arch:x86_64",
             "//build/bazel/platforms/os:linux",
         ],
         target_compatible_with = [
             "//build/bazel/platforms/arch:%s" % arch,
             "//build/bazel/platforms/os:android",
         ],
         toolchain = ":cc_toolchain_%s" % arch,
         toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
     ) for arch in ARCHITECTURES
 ]

 # Device toolchains without crt libraries
 [
     toolchain(
         name = "cc_toolchain_%s_nocrt_def" % arch,
         exec_compatible_with = [
             "//build/bazel/platforms/arch:x86_64",
             "//build/bazel/platforms/os:linux",
         ],
         target_compatible_with = [
             "//build/bazel/platforms/arch:%s" % arch,
             "//build/bazel/platforms/os:android",
         ],
         toolchain = ":cc_toolchain_%s_nocrt" % arch,
         toolchain_type = ":nocrt_toolchain",
     ) for arch in ARCHITECTURES
 ]

 # Toolchains for linux host (x86_64) archs
 [
     toolchain(
         name = "%s_def" % toolchain_name,
         exec_compatible_with = [
             "//build/bazel/platforms/arch:x86_64",
             "//build/bazel/platforms/os:linux",
         ],
         target_compatible_with = [
             "//build/bazel/platforms/arch:x86_64",
             "//build/bazel/platforms/os:linux",
         ],
         toolchain = toolchain_name,
         toolchain_type = toolchain_type,
     ) for (toolchain_name, toolchain_type) in
     [
         ("cc_toolchain_x86_64_linux_host", "@bazel_tools//tools/cpp:toolchain_type"),
         ("cc_toolchain_x86_64_linux_host_nocrt", "nocrt_toolchain"),
     ]
 ]

 # 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",
         ],
         target_compatible_with = [
             "//build/bazel/platforms/arch:x86",
             "//build/bazel/platforms/os:linux",
         ],
         toolchain = toolchain_name,
         toolchain_type = toolchain_type,
     ) for (toolchain_name, toolchain_type) in
     [
         ("cc_toolchain_x86_linux_host", "@bazel_tools//tools/cpp:toolchain_type"),
         ("cc_toolchain_x86_linux_host_nocrt", "nocrt_toolchain"),
     ]
 ]

 cc_import(
     name = "libclang_rt",
     static_library = select(_LIBCLANG_RT_PREBUILT_MAP),
 )

 [alias(
     name = "llvm-%s" % tool,
     actual = generated_constants.CLANG_DEFAULT_VERSION + "/bin/llvm-%s" % tool,
     visibility = ["//visibility:public"],
 ) for tool in [
     "ar",
     "readelf",
     "objcopy",
     "strip",
 ]]

 # Test tools used by Bazel tests.
 filegroup(
     name = "test_tools",
     srcs = [
         generated_constants.CLANG_DEFAULT_VERSION + "/bin/llvm-readelf",
         generated_constants.CLANG_DEFAULT_VERSION + "/bin/llvm-nm",
     ],
     visibility = ["//build/bazel/tests:__subpackages__"],
 )
	# NOTE: THIS FILE IS EXPERIMENTAL FOR THE BAZEL MIGRATION AND NOT USED FOR
	# YOUR BUILDS CURRENTLY.
	#
	# It is not yet the source of truth for your build. If you're looking to modify
	# the build file, modify the Android.bp file instead. Do not modify this file
	# unless you have coordinated with the team managing the Soong to Bazel
	# migration.

	package(default_visibility = ["//visibility:public"])

	# Toolchain config
	filegroup(name = "empty")

	load(":cc_toolchain_config.bzl", "android_cc_toolchain", "clang_version", "expand_feature_flags")
	load(":cc_toolchain_constants.bzl", "device_compatibility_flags_non_windows", "device_compatibility_flags_non_darwin", "generated_constants")

	# Different clang versions are configured here.
	clang_version(
	name = "clang",
	directory = generated_constants.CLANG_DEFAULT_VERSION,
	includes = [
	"lib64/clang/%s/include" % generated_constants.CLANG_DEFAULT_SHORT_VERSION,
	],
	)

	_LIBCLANG_RT_PREFIX = "%s/lib64/clang/%s/lib/linux" % (
	generated_constants.CLANG_DEFAULT_VERSION,
	generated_constants.CLANG_DEFAULT_SHORT_VERSION,
	)

	_LIBCLANG_RT_PREBUILT_MAP = {
	"//build/bazel/platforms/os_arch:android_arm": _LIBCLANG_RT_PREFIX + "/libclang_rt.builtins-arm-android.a",
	"//build/bazel/platforms/os_arch:android_arm64": _LIBCLANG_RT_PREFIX + "/libclang_rt.builtins-aarch64-android.a",
	"//build/bazel/platforms/os_arch:android_x86": _LIBCLANG_RT_PREFIX + "/libclang_rt.builtins-i686-android.a",
	"//build/bazel/platforms/os_arch:android_x86_64": _LIBCLANG_RT_PREFIX + "/libclang_rt.builtins-x86_64-android.a",
	"//build/bazel/platforms/os_arch:linux_bionic_x86_64": _LIBCLANG_RT_PREFIX + "/libclang_rt.builtins-x86_64-android.a",
	"//build/bazel/platforms/os_arch:linux_glibc_x86": _LIBCLANG_RT_PREFIX + "/libclang_rt.builtins-i386.a",
	"//build/bazel/platforms/os_arch:linux_glibc_x86_64": _LIBCLANG_RT_PREFIX + "/libclang_rt.builtins-x86_64.a",
	"//conditions:default": None,
	}

	# x86_64 toolchain definition.
	android_cc_toolchain(
	name = "cc_toolchain_x86_64",
	target_os = "android",
	target_arch = "x86_64",
	clang_version = ":clang",
	clang_version_directory = generated_constants.CLANG_DEFAULT_VERSION,
	libclang_rt_builtin = _LIBCLANG_RT_PREBUILT_MAP["//build/bazel/platforms/os_arch:android_x86_64"],
	linker_flags = generated_constants.X86_64ToolchainLdflags + generated_constants.X86_64Lldflags,
	target_flags = [
	"--target=x86_64-linux-android10000",
	] + generated_constants.X86_64ToolchainCflags +
	generated_constants.X86_64ArchVariantCflags[""] +
	expand_feature_flags(
	generated_constants.X86_64DefaultArchVariantFeatures,
	generated_constants.X86_64ArchFeatureCflags,
	) + generated_constants.X86_64Cflags,
	toolchain_identifier = "x86_64-toolchain",
	)

	# x86 toolchain definition.
	android_cc_toolchain(
	name = "cc_toolchain_x86",
	target_os = "android",
	target_arch = "x86",
	clang_version = ":clang",
	clang_version_directory = generated_constants.CLANG_DEFAULT_VERSION,
	libclang_rt_builtin = _LIBCLANG_RT_PREBUILT_MAP["//build/bazel/platforms/os_arch:android_x86"],
	linker_flags = generated_constants.X86ToolchainLdflags + generated_constants.X86Lldflags,
	target_flags = [
	"--target=i686-linux-android10000",
	] + generated_constants.X86ToolchainCflags +
	generated_constants.X86ArchVariantCflags[""] +
	expand_feature_flags(
	generated_constants.X86_64DefaultArchVariantFeatures,
	generated_constants.X86ArchFeatureCflags,
	) + generated_constants.X86Cflags,
	toolchain_identifier = "x86-toolchain",
	)

	# arm64 toolchain definition.
	android_cc_toolchain(
	name = "cc_toolchain_arm64",
	target_os = "android",
	target_arch = "arm64",
	clang_version = ":clang",
	clang_version_directory = generated_constants.CLANG_DEFAULT_VERSION,
	libclang_rt_builtin = _LIBCLANG_RT_PREBUILT_MAP["//build/bazel/platforms/os_arch:android_arm64"],
	linker_flags = generated_constants.Arm64Lldflags,
	target_flags = [
	"--target=aarch64-linux-android10000",
	] + generated_constants.Arm64ArchVariantCflags["armv8-a"] +
	generated_constants.Arm64CpuVariantCflags.get(
	"",
	default = [],
	) + generated_constants.Arm64Cflags,
	toolchain_identifier = "arm64-toolchain",
	)

	# arm32 toolchain definition.
	android_cc_toolchain(
	name = "cc_toolchain_arm",
	target_os = "android",
	target_arch = "arm",
	clang_version = ":clang",
	clang_version_directory = generated_constants.CLANG_DEFAULT_VERSION,
	libclang_rt_builtin = _LIBCLANG_RT_PREBUILT_MAP["//build/bazel/platforms/os_arch:android_arm"],
	linker_flags = generated_constants.ArmLldflags,
	target_flags = ["--target=" + generated_constants.ArmClangTriple + "10000"] +
	generated_constants.ArmToolchainCflags +
	generated_constants.ArmArchVariantCflags["armv7-a-neon"] +
	generated_constants.ArmCpuVariantCflags.get("", []) +
	generated_constants.ArmCflags,
	toolchain_identifier = "arm-toolchain",
	)

	# Toolchain to compile for the linux host.
	# TODO(b/186628704): automatically generate from Soong.
	android_cc_toolchain(
	name = "cc_toolchain_x86_64_linux_host",
	target_os = "linux_glibc",
	target_arch = "x86_64",
	clang_version = ":clang",
	clang_version_directory = generated_constants.CLANG_DEFAULT_VERSION,
	crt = False,
	libclang_rt_builtin = _LIBCLANG_RT_PREBUILT_MAP["//build/bazel/platforms/os_arch:linux_glibc_x86_64"],
	linker_flags = generated_constants.LinuxGlibcLdflags +
	generated_constants.LinuxLdflags +
	generated_constants.LinuxX8664Ldflags +
	device_compatibility_flags_non_windows +
	device_compatibility_flags_non_darwin,
	target_flags = ["--target=x86_64-linux-gnu"],
	compiler_flags = generated_constants.LinuxCflags +
	generated_constants.LinuxGlibcCflags +
	generated_constants.LinuxX8664Cflags +
	# Added by stl.go for non-bionic toolchains.
	["-nostdinc++"],
	gcc_toolchain = generated_constants.LinuxGccRoot,
	toolchain_identifier = "x86_64-toolchain",
	rtti_toggle = False,
	)

	# Toolchain to compile for the linux x86 target.
	android_cc_toolchain(
	name = "cc_toolchain_x86_linux_host",
	target_os = "linux_glibc",
	target_arch = "x86",
	clang_version = ":clang",
	clang_version_directory = generated_constants.CLANG_DEFAULT_VERSION,
	crt = False,
	libclang_rt_builtin = _LIBCLANG_RT_PREBUILT_MAP["//build/bazel/platforms/os_arch:linux_glibc_x86"],
	linker_flags = generated_constants.LinuxGlibcLdflags +
	generated_constants.LinuxLdflags +
	generated_constants.LinuxX86Ldflags +
	device_compatibility_flags_non_windows +
	device_compatibility_flags_non_darwin,
	target_flags = ["--target=i686-linux-gnu"],
	compiler_flags = generated_constants.LinuxCflags +
	generated_constants.LinuxGlibcCflags +
	generated_constants.LinuxX86Cflags +
	# Added by stl.go for non-bionic toolchains.
	["-nostdinc++"],
	gcc_toolchain = generated_constants.LinuxGccRoot,
	toolchain_identifier = "x86-toolchain",
	rtti_toggle = False,
	)

	toolchain_type(name = "nocrt_toolchain")

	ARCHITECTURES = ["x86_64", "x86", "arm", "arm64"]

	# Device toolchains with crt libraries
	[
	toolchain(
	name = "cc_toolchain_%s_def" % arch,
	exec_compatible_with = [
	"//build/bazel/platforms/arch:x86_64",
	"//build/bazel/platforms/os:linux",
	],
	target_compatible_with = [
	"//build/bazel/platforms/arch:%s" % arch,
	"//build/bazel/platforms/os:android",
	],
	toolchain = ":cc_toolchain_%s" % arch,
	toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
	) for arch in ARCHITECTURES
	]

	# Device toolchains without crt libraries
	[
	toolchain(
	name = "cc_toolchain_%s_nocrt_def" % arch,
	exec_compatible_with = [
	"//build/bazel/platforms/arch:x86_64",
	"//build/bazel/platforms/os:linux",
	],
	target_compatible_with = [
	"//build/bazel/platforms/arch:%s" % arch,
	"//build/bazel/platforms/os:android",
	],
	toolchain = ":cc_toolchain_%s_nocrt" % arch,
	toolchain_type = ":nocrt_toolchain",
	) for arch in ARCHITECTURES
	]

	# Toolchains for linux host (x86_64) archs
	[
	toolchain(
	name = "%s_def" % toolchain_name,
	exec_compatible_with = [
	"//build/bazel/platforms/arch:x86_64",
	"//build/bazel/platforms/os:linux",
	],
	target_compatible_with = [
	"//build/bazel/platforms/arch:x86_64",
	"//build/bazel/platforms/os:linux",
	],
	toolchain = toolchain_name,
	toolchain_type = toolchain_type,
	) for (toolchain_name, toolchain_type) in
	[
	("cc_toolchain_x86_64_linux_host", "@bazel_tools//tools/cpp:toolchain_type"),
	("cc_toolchain_x86_64_linux_host_nocrt", "nocrt_toolchain"),
	]
	]

	# 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",
	],
	target_compatible_with = [
	"//build/bazel/platforms/arch:x86",
	"//build/bazel/platforms/os:linux",
	],
	toolchain = toolchain_name,
	toolchain_type = toolchain_type,
	) for (toolchain_name, toolchain_type) in
	[
	("cc_toolchain_x86_linux_host", "@bazel_tools//tools/cpp:toolchain_type"),
	("cc_toolchain_x86_linux_host_nocrt", "nocrt_toolchain"),
	]
	]

	cc_import(
	name = "libclang_rt",
	static_library = select(_LIBCLANG_RT_PREBUILT_MAP),
	)

	[alias(
	name = "llvm-%s" % tool,
	actual = generated_constants.CLANG_DEFAULT_VERSION + "/bin/llvm-%s" % tool,
	visibility = ["//visibility:public"],
	) for tool in [
	"ar",
	"readelf",
	"objcopy",
	"strip",
	]]

	# Test tools used by Bazel tests.
	filegroup(
	name = "test_tools",
	srcs = [
	generated_constants.CLANG_DEFAULT_VERSION + "/bin/llvm-readelf",
	generated_constants.CLANG_DEFAULT_VERSION + "/bin/llvm-nm",
	],
	visibility = ["//build/bazel/tests:__subpackages__"],
	)