| load("@rules_cc//cc/toolchains:args.bzl", "cc_args") |
| load("@rules_cc//cc/toolchains:args_list.bzl", "cc_args_list") |
| load("@rules_cc//cc/toolchains:feature.bzl", "cc_feature") |
| load("@rules_cc//cc/toolchains:toolchain.bzl", "cc_toolchain") |
| load("configurable_feature.bzl", "configurable_toolchain_feature") |
| |
| package(default_visibility = ["//visibility:public"]) |
| |
| cc_args( |
| name = "armv6m-none-eabi", |
| actions = [ |
| "@rules_cc//cc/toolchains/actions:compile_actions", |
| "@rules_cc//cc/toolchains/actions:link_actions", |
| ], |
| args = ["--target=armv6m-none-eabi"], |
| ) |
| |
| cc_args( |
| name = "armv8m.main-none-eabi", |
| actions = [ |
| "@rules_cc//cc/toolchains/actions:compile_actions", |
| "@rules_cc//cc/toolchains/actions:link_actions", |
| ], |
| args = ["--target=armv8m.main-none-eabi"], |
| ) |
| |
| cc_args( |
| name = "cortex-m0", |
| actions = [ |
| "@rules_cc//cc/toolchains/actions:compile_actions", |
| "@rules_cc//cc/toolchains/actions:link_actions", |
| ], |
| args = [ |
| "-mcpu=cortex-m0plus", |
| "-mthumb", |
| ], |
| ) |
| |
| cc_args( |
| name = "cortex-m33", |
| actions = [ |
| "@rules_cc//cc/toolchains/actions:compile_actions", |
| "@rules_cc//cc/toolchains/actions:link_actions", |
| ], |
| args = [ |
| "-mcpu=cortex-m33", |
| "-march=armv8-m.main+fp+dsp", |
| "-mfloat-abi=softfp", |
| "-mthumb", |
| "-mcmse", |
| ], |
| ) |
| |
| cc_args( |
| name = "no-canonical-system-headers", |
| actions = ["@rules_cc//cc/toolchains/actions:compile_actions"], |
| args = ["-fno-canonical-system-headers"], |
| ) |
| |
| cc_args( |
| name = "no-canonical-prefixes", |
| actions = ["@rules_cc//cc/toolchains/actions:compile_actions"], |
| args = ["-no-canonical-prefixes"], |
| ) |
| |
| cc_args( |
| name = "nostdlibxx", |
| actions = ["@rules_cc//cc/toolchains/actions:link_actions"], |
| args = ["-nostdlib++"], |
| ) |
| |
| cc_args( |
| name = "nostartfiles", |
| actions = ["@rules_cc//cc/toolchains/actions:link_actions"], |
| args = ["-nostartfiles"], |
| ) |
| |
| cc_args_list( |
| name = "bazel_no_absolute_paths", |
| args = select({ |
| "//bazel/constraint:pico_toolchain_clang_enabled": [], |
| "//conditions:default": [":no-canonical-system-headers"], |
| }) + [":no-canonical-prefixes"], |
| ) |
| |
| cc_args( |
| name = "opt_debug_args", |
| actions = [ |
| "@rules_cc//cc/toolchains/actions:compile_actions", |
| "@rules_cc//cc/toolchains/actions:link_actions", |
| ], |
| args = [ |
| "-Og", # TODO: Make this configurable. |
| "-g3", |
| ], |
| ) |
| |
| configurable_toolchain_feature( |
| name = "gc_sections", |
| copts = [ |
| "-ffunction-sections", |
| "-fdata-sections", |
| ], |
| disable_if = "//bazel/constraint:pico_no_gc_sections_enabled", |
| linkopts = ["-Wl,--gc-sections"], |
| ) |
| |
| configurable_toolchain_feature( |
| name = "cxx_no_exceptions", |
| cxxopts = [ |
| "-fno-exceptions", |
| "-fno-unwind-tables", |
| ], |
| disable_if = "//bazel/constraint:pico_cxx_enable_exceptions_enabled", |
| ) |
| |
| configurable_toolchain_feature( |
| name = "cxx_no_rtti", |
| cxxopts = ["-fno-rtti"], |
| disable_if = "//bazel/constraint:pico_cxx_enable_rtti_enabled", |
| ) |
| |
| configurable_toolchain_feature( |
| name = "cxx_no_cxa_atexit", |
| cxxopts = ["-fno-use-cxa-atexit"], |
| disable_if = "//bazel/constraint:pico_cxx_enable_cxa_atexit_enabled", |
| ) |
| |
| configurable_toolchain_feature( |
| name = "override_max_page_size", |
| disable_if = "//bazel/constraint:pico_use_default_max_page_size_enabled", |
| linkopts = ["-Wl,-z,max-page-size=4096"], |
| ) |
| |
| # TODO: Make this shim unnecessary. |
| cc_args_list( |
| name = "all_opt_debug_args", |
| args = [":opt_debug_args"], |
| ) |
| |
| cc_feature( |
| name = "override_debug", |
| args = [":all_opt_debug_args"], |
| enabled = True, |
| overrides = "@rules_cc//cc/toolchains/features:dbg", |
| ) |
| |
| # TODO: https://github.com/bazelbuild/rules_cc/issues/224 - This is required for |
| # now, but hopefully will eventually go away. |
| cc_feature( |
| name = "legacy_features", |
| args = [], |
| enabled = True, |
| feature_name = "force_legacy_features", |
| implies = [ |
| "@rules_cc//cc/toolchains/features/legacy:archiver_flags", |
| "@rules_cc//cc/toolchains/features/legacy:build_interface_libraries", |
| "@rules_cc//cc/toolchains/features/legacy:dynamic_library_linker_tool", |
| "@rules_cc//cc/toolchains/features/legacy:strip_debug_symbols", |
| "@rules_cc//cc/toolchains/features/legacy:linkstamps", |
| "@rules_cc//cc/toolchains/features/legacy:output_execpath_flags", |
| "@rules_cc//cc/toolchains/features/legacy:runtime_library_search_directories", |
| "@rules_cc//cc/toolchains/features/legacy:library_search_directories", |
| "@rules_cc//cc/toolchains/features/legacy:libraries_to_link", |
| "@rules_cc//cc/toolchains/features/legacy:force_pic_flags", |
| "@rules_cc//cc/toolchains/features/legacy:user_link_flags", |
| "@rules_cc//cc/toolchains/features/legacy:legacy_link_flags", |
| "@rules_cc//cc/toolchains/features/legacy:linker_param_file", |
| "@rules_cc//cc/toolchains/features/legacy:fission_support", |
| "@rules_cc//cc/toolchains/features/legacy:sysroot", |
| ], |
| ) |
| |
| HOSTS = ( |
| ("linux", "x86_64"), |
| ("win", "x86_64"), |
| ("mac", "x86_64"), |
| ("mac", "aarch64"), |
| ) |
| |
| _HOST_OS_CONSTRAINTS = { |
| "linux": "@platforms//os:linux", |
| "win": "@platforms//os:windows", |
| "mac": "@platforms//os:macos", |
| } |
| |
| _HOST_CPU_CONSTRAINTS = { |
| "x86_64": "@platforms//cpu:x86_64", |
| "aarch64": "@platforms//cpu:aarch64", |
| } |
| |
| [cc_toolchain( |
| name = "arm_gcc_{}-{}_toolchain_cortex-m".format(host_os, host_cpu), |
| action_type_configs = [ |
| "@arm_gcc_{}-{}//:arm-none-eabi-ar".format(host_os, host_cpu), |
| "@arm_gcc_{}-{}//:arm-none-eabi-gcc".format(host_os, host_cpu), |
| "@arm_gcc_{}-{}//:arm-none-eabi-g++".format(host_os, host_cpu), |
| "@arm_gcc_{}-{}//:arm-none-eabi-ld".format(host_os, host_cpu), |
| "@arm_gcc_{}-{}//:arm-none-eabi-objcopy".format(host_os, host_cpu), |
| "@arm_gcc_{}-{}//:arm-none-eabi-strip".format(host_os, host_cpu), |
| ], |
| args = select({ |
| "//bazel/constraint:rp2040": [":cortex-m0"], |
| "//bazel/constraint:rp2350": [":cortex-m33"], |
| "//conditions:default": [], |
| }) + [ |
| ":bazel_no_absolute_paths", |
| ], |
| compiler = "gcc", # Useful for distinguishing gcc vs clang. |
| cxx_builtin_include_directories = [ |
| "%sysroot%/arm-none-eabi/include/newlib-nano", |
| "%sysroot%/arm-none-eabi/include/c++/13.2.1", |
| "%sysroot%/arm-none-eabi/include/c++/13.2.1/arm-none-eabi", |
| "%sysroot%/arm-none-eabi/include/c++/13.2.1/backward", |
| "%sysroot%/lib/gcc/arm-none-eabi/13.2.1/include", |
| "%sysroot%/lib/gcc/arm-none-eabi/13.2.1/include-fixed", |
| "%sysroot%/arm-none-eabi/include", |
| ], |
| exec_compatible_with = [ |
| _HOST_CPU_CONSTRAINTS[host_cpu], |
| _HOST_OS_CONSTRAINTS[host_os], |
| ], |
| sysroot = "external/arm_gcc_{}-{}".format(host_os, host_cpu), |
| tags = ["manual"], # Don't try to build this in wildcard builds. |
| toolchain_features = [ |
| "@pico-sdk//bazel/toolchain:legacy_features", |
| "@pico-sdk//bazel/toolchain:override_debug", |
| "@pico-sdk//bazel/toolchain:gc_sections", |
| "@pico-sdk//bazel/toolchain:cxx_no_exceptions", |
| "@pico-sdk//bazel/toolchain:cxx_no_rtti", |
| "@pico-sdk//bazel/toolchain:cxx_no_cxa_atexit", |
| "@pico-sdk//bazel/toolchain:override_max_page_size", |
| ], |
| ) for host_os, host_cpu in HOSTS] |
| |
| [cc_toolchain( |
| name = "clang_{}-{}_toolchain_cortex-m".format(host_os, host_cpu), |
| action_type_configs = [ |
| "@clang_{}-{}//:llvm-ar".format(host_os, host_cpu), |
| "@clang_{}-{}//:clang".format(host_os, host_cpu), |
| "@clang_{}-{}//:clang++".format(host_os, host_cpu), |
| "@clang_{}-{}//:lld".format(host_os, host_cpu), |
| "@clang_{}-{}//:llvm-objcopy".format(host_os, host_cpu), |
| "@clang_{}-{}//:llvm-strip".format(host_os, host_cpu), |
| ], |
| args = select({ |
| "//bazel/constraint:rp2040": [ |
| ":armv6m-none-eabi", |
| ":cortex-m0", |
| ], |
| "//bazel/constraint:rp2350": [ |
| ":armv8m.main-none-eabi", |
| ":cortex-m33", |
| ], |
| "//conditions:default": [], |
| }) + [ |
| ":bazel_no_absolute_paths", |
| ":nostdlibxx", |
| ":nostartfiles", |
| ], |
| compiler = "clang", # Useful for distinguishing gcc vs clang. |
| exec_compatible_with = [ |
| _HOST_CPU_CONSTRAINTS[host_cpu], |
| _HOST_OS_CONSTRAINTS[host_os], |
| ], |
| tags = ["manual"], # Don't try to build this in wildcard builds. |
| toolchain_features = [ |
| "@pico-sdk//bazel/toolchain:legacy_features", |
| "@pico-sdk//bazel/toolchain:override_debug", |
| "@pico-sdk//bazel/toolchain:gc_sections", |
| "@pico-sdk//bazel/toolchain:cxx_no_exceptions", |
| "@pico-sdk//bazel/toolchain:cxx_no_rtti", |
| "@pico-sdk//bazel/toolchain:cxx_no_cxa_atexit", |
| "@pico-sdk//bazel/toolchain:override_max_page_size", |
| ], |
| ) for host_os, host_cpu in HOSTS] |
| |
| [toolchain( |
| name = "{}-{}-rp2040".format(host_os, host_cpu), |
| exec_compatible_with = [ |
| _HOST_CPU_CONSTRAINTS[host_cpu], |
| _HOST_OS_CONSTRAINTS[host_os], |
| ], |
| target_compatible_with = [ |
| "@pico-sdk//bazel/constraint:rp2040", |
| ], |
| toolchain = select({ |
| "//bazel/constraint:pico_toolchain_clang_enabled": "clang_{}-{}_toolchain_cortex-m".format(host_os, host_cpu), |
| "//conditions:default": ":arm_gcc_{}-{}_toolchain_cortex-m".format(host_os, host_cpu), |
| }), |
| toolchain_type = "@bazel_tools//tools/cpp:toolchain_type", |
| ) for host_os, host_cpu in HOSTS] |
| |
| [toolchain( |
| name = "{}-{}-rp2350".format(host_os, host_cpu), |
| exec_compatible_with = [ |
| _HOST_CPU_CONSTRAINTS[host_cpu], |
| _HOST_OS_CONSTRAINTS[host_os], |
| ], |
| target_compatible_with = [ |
| "@pico-sdk//bazel/constraint:rp2350", |
| ], |
| toolchain = select({ |
| "//bazel/constraint:pico_toolchain_clang_enabled": "clang_{}-{}_toolchain_cortex-m".format(host_os, host_cpu), |
| "//conditions:default": ":arm_gcc_{}-{}_toolchain_cortex-m".format(host_os, host_cpu), |
| }), |
| toolchain_type = "@bazel_tools//tools/cpp:toolchain_type", |
| ) for host_os, host_cpu in HOSTS] |