| # SPDX-FileCopyrightText: Copyright 2024 The Pigweed Authors |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| load("@bazel_skylib//lib:selects.bzl", "selects") |
| load("@rules_cc//cc:defs.bzl", "cc_library") |
| load("//bazel:runner.bzl", "zephyr_runner_config") |
| load("//bazel:cc_toolchain_feature_is_enabled.bzl", "cc_toolchain_feature_is_enabled") |
| load("//bazel:defs.bzl", "device_api_linker_files", "driver_validation_file", "kobj_types_enum_file", "syscall_library_files", "zephyr_offset_header") |
| load("//bazel:linker_fragment.bzl", "generate_app_smem_unaligned_linker", "generate_linker_snippets", "zephyr_linker_fragment") |
| |
| package(default_visibility = ["//visibility:public"]) |
| |
| exports_files(glob(["**"], allow_empty = True)) |
| |
| cc_toolchain_feature_is_enabled( |
| name = "compiler_is_gcc", |
| feature_name = "compiler_is_gcc", |
| ) |
| |
| cc_toolchain_feature_is_enabled( |
| name = "compiler_is_clang", |
| feature_name = "compiler_is_clang", |
| ) |
| |
| cc_library( |
| name = "syscall_tracing", |
| hdrs = [ |
| "//include:zephyr/llext/symbol.h", |
| "//include:zephyr/sys/__assert.h", |
| "//include:zephyr/sys/iterable_sections.h", |
| "//include:zephyr/toolchain.h", |
| "//include:zephyr/toolchain/common.h", |
| "//include:zephyr/toolchain/gcc.h", |
| "//include:zephyr/tracing/tracing_syscall.h", |
| ], |
| includes = ["include"], |
| ) |
| |
| filegroup( |
| name = "syscall_client_files", |
| srcs = [ |
| "//arch:syscall_client_files", |
| "//drivers:syscall_client_files", |
| "//kernel:syscall_client_files", |
| "//lib/libc:syscall_client_files", |
| "//lib/os:syscall_client_files", |
| "//subsys:syscall_client_files", |
| ], |
| ) |
| |
| syscall_library_files( |
| name = "syscall_files", |
| client_files = [":syscall_client_files"], |
| # Files from drivers/ and subsys/net/ should be added here if needed. |
| scan_files = ["//include:all"], |
| ) |
| |
| cc_library( |
| name = "syscall_list", |
| hdrs = [":syscall_files"], |
| includes = [ |
| "include/generated", |
| "include/generated/zephyr", |
| ], |
| ) |
| |
| device_api_linker_files( |
| name = "device_api_sections_ld", |
| dep = ":syscall_files", |
| ) |
| |
| driver_validation_file( |
| name = "driver_validation_h", |
| dep = ":syscall_files", |
| ) |
| |
| kobj_types_enum_file( |
| name = "kobj_types_enum_h", |
| dep = ":syscall_files", |
| ) |
| |
| # Sentinel target that is used as a default for label_flag that must be |
| # overriden by consumers. Building this target fails with a clear error. |
| cc_library( |
| name = "zephyr_unspecified_backend", |
| target_compatible_with = ["@platforms//:incompatible"], |
| ) |
| |
| zephyr_runner_config( |
| name = "no_runner", |
| args = [], |
| runner = "", |
| ) |
| |
| label_flag( |
| name = "board_runner_config", |
| build_setting_default = ":no_runner", |
| ) |
| |
| label_flag( |
| name = "dts_cc_library", |
| build_setting_default = ":zephyr_unspecified_backend", |
| ) |
| |
| label_flag( |
| name = "extra_dts_overlays", |
| build_setting_default = ":empty_overlays", |
| ) |
| |
| filegroup( |
| name = "empty_overlays", |
| srcs = [], |
| ) |
| |
| # Optional flag for clients to pass in any devicetree binding headers. |
| label_flag( |
| name = "dt_binding_headers_library", |
| build_setting_default = "@rules_cc//:empty_lib", |
| ) |
| |
| # Optional flag for clients to pass in any headers provided by the HAL to build |
| # the SoC directory. |
| label_flag( |
| name = "hal_soc_headers_library", |
| build_setting_default = "@rules_cc//:empty_lib", |
| ) |
| |
| filegroup( |
| name = "empty_files", |
| srcs = ["empty.h"], |
| ) |
| |
| # Optional flag for clients to pass in any sources provided by the HAL to build |
| # the SoC directory. |
| label_flag( |
| name = "hal_soc_extra_srcs", |
| build_setting_default = ":empty_files", |
| ) |
| |
| |
| # Optional flag for clients to pass in cc_libraries for the board-specific |
| # implementation. |
| label_flag( |
| name = "board_deps", |
| build_setting_default = "@rules_cc//:empty_lib", |
| ) |
| |
| label_flag( |
| name = "autoconf_library", |
| build_setting_default = ":zephyr_unspecified_backend", |
| ) |
| |
| # Mandatory flag for clients to pass in a cc_library that contains C/assembly |
| # symbols needed in the final linking. |
| label_flag( |
| name = "autoconf_symbols_to_link", |
| build_setting_default = ":zephyr_unspecified_backend", |
| ) |
| |
| label_flag( |
| name = "autoconf_file", |
| build_setting_default = ":zephyr_unspecified_backend", |
| ) |
| |
| label_flag( |
| name = "autoconf_dir", |
| build_setting_default = ":zephyr_unspecified_backend", |
| ) |
| |
| label_flag( |
| name = "kconfig_config_file", |
| build_setting_default = ":zephyr_unspecified_backend", |
| ) |
| |
| label_flag( |
| name = "soc", |
| build_setting_default = ":zephyr_unspecified_backend", |
| ) |
| |
| label_flag( |
| name = "soc_linkerscript_template", |
| build_setting_default = ":zephyr_unspecified_backend", |
| ) |
| |
| # Only for native_sim, the prefinal template is different from the final |
| # template. Maybe the right solution is that native_sim should go through |
| # a transition for prefinal vs final linking, and we won't need this flag. |
| label_flag( |
| name = "soc_linkerscript_template_prefinal", |
| build_setting_default = ":soc_linkerscript_template", |
| ) |
| |
| label_flag( |
| name = "offsets_lib", |
| build_setting_default = ":zephyr_unspecified_backend", |
| ) |
| |
| # Optional flag for clients to pass in extra linker snippets or headers, |
| # e.g. from the HAL. |
| label_flag( |
| name = "extra_linker_includes", |
| build_setting_default = "@rules_cc//:empty_lib", |
| ) |
| |
| |
| |
| label_flag( |
| name = "offsets_src", |
| build_setting_default = "//arch/arm:offsets_src", |
| ) |
| |
| zephyr_offset_header( |
| name = "offsets_header", |
| src = ":offsets_src", |
| lib = ":offsets_lib", |
| output = "zephyr/offsets.h", |
| tool = "//scripts/build:gen_offset_header", |
| ) |
| |
| cc_library( |
| name = "offsets_header_lib", |
| hdrs = [":offsets_header"], |
| includes = ["zephyr"], |
| deps = [":offsets_header"], |
| ) |
| |
| cc_library( |
| name = "heap_constants_base_lib", |
| hdrs = ["//lib/heap:heap.h"], |
| includes = ["lib/heap"], |
| deps = [ |
| ":autoconf_library", |
| "//arch/common:interface", |
| "//include:zephyr", |
| "//kernel:headers", |
| ], |
| ) |
| |
| zephyr_offset_header( |
| name = "heap_constants_header", |
| src = "//lib/heap:heap_constants.c", |
| hdrs = ["//lib/heap:heap.h"], |
| includes = ["lib/heap"], |
| lib = ":heap_constants_base_lib", |
| output = "zephyr/heap_constants.h", |
| tool = "//scripts/build:gen_offset_header", |
| ) |
| |
| cc_library( |
| name = "heap_constants_lib", |
| hdrs = [":heap_constants_header"], |
| includes = ["zephyr"], |
| deps = [":heap_constants_header"], |
| ) |
| |
| zephyr_linker_fragment( |
| name = "linker_fragments", |
| deps = [ |
| "//arch/common:linker_fragments", |
| "//drivers:linker_fragments", |
| "//soc:linker_fragments", |
| "//subsys:linker_fragments", |
| ] + select({ |
| "//conditions:default": [], |
| "@zephyr_kconfig//:CONFIG_ARM=true": [ |
| "//arch/arm/core:linker_fragments", |
| ], |
| }) + select({ |
| "//conditions:default": [], |
| "@zephyr_kconfig//:CONFIG_RISCV=true": [ |
| "//arch/riscv:linker_fragments", |
| ], |
| }) + select({ |
| "//conditions:default": [], |
| "@zephyr_kconfig//:CONFIG_ARCH_POSIX=true": [ |
| "//arch/posix:linker_fragments", |
| ], |
| }), |
| ) |
| |
| generate_linker_snippets( |
| name = "generated_linker_snippets", |
| targets = [ |
| ":linker_fragments", |
| ], |
| ) |
| |
| alias( |
| name = "app_smem_unaligned_ld", |
| actual = select({ |
| "//conditions:default": "@rules_cc//:empty_lib", |
| "@zephyr_kconfig//:CONFIG_USERSPACE=true": "//:app_smem_unaligned_ld_generated", |
| }), |
| ) |
| |
| generate_app_smem_unaligned_linker( |
| name = "app_smem_unaligned_ld_generated", |
| # This should expand to all dependency cc_libraries. |
| cc_libs = [ |
| "//kernel", |
| "//subsys/testsuite/ztest", |
| "//tests/kernel/common:main", |
| ], |
| ) |
| |
| cc_library( |
| name = "internal_zephyr_optional_deps", |
| deps = [ |
| ":dt_binding_headers_library", |
| ], |
| ) |
| |
| cc_library( |
| name = "internal_zephyr_mandatory_deps", |
| deps = [ |
| ":internal_zephyr_soc_mandatory_deps", |
| ":offsets_header_lib", |
| ":soc", |
| ], |
| ) |
| |
| cc_library( |
| name = "internal_zephyr_soc_mandatory_deps", |
| deps = [ |
| ":autoconf_library", |
| ":driver_validation_h", |
| ":dts_cc_library", |
| ":heap_constants_lib", |
| ":kobj_types_enum_h", |
| ":syscall_list", |
| "//include:zephyr", |
| "//kernel:headers", |
| ], |
| ) |
| |
| # Headers from arch/. Useful in building SoC libraries. |
| cc_library( |
| name = "arch_headers_library", |
| # TODO(yichengli): Add header libraries for other architectures. |
| deps = select({ |
| "//conditions:default": [], |
| "@zephyr_kconfig//:CONFIG_CPU_CORTEX_M=true": [ |
| "//arch/arm/core/cortex_m:headers", |
| ], |
| "@zephyr_kconfig//:CONFIG_ARCH_POSIX=true": [ |
| "//arch/posix:headers", |
| ], |
| }), |
| ) |
| |
| # config_setting_group can only be evaluated in a BUILD.bazel or a macro. |
| selects.config_setting_group( |
| name = "want_stdinc", |
| match_any = [ |
| "@zephyr_kconfig//:CONFIG_NEWLIB_LIBC=true", |
| "@zephyr_kconfig//:CONFIG_PICOLIBC_USE_TOOLCHAIN=true", |
| "@zephyr_kconfig//:CONFIG_HAS_ESPRESSIF_HAL=true", |
| "@zephyr_kconfig//:CONFIG_NATIVE_BUILD=true", |
| ], |
| ) |
| |
| |
| cc_library( |
| name = "native_simulator", |
| target_compatible_with = select({ |
| "@zephyr_kconfig//:CONFIG_ARCH_POSIX=true": [], |
| "//conditions:default": ["@platforms//:incompatible"], |
| }), |
| deps = [ |
| "//scripts/native_simulator:native_simulator_headers", |
| ], |
| ) |
| |
| cc_library( |
| name = "arch_specific_deps", |
| deps = select({ |
| "//conditions:default": [], |
| "@zephyr_kconfig//:CONFIG_CPU_CORTEX_M=true": [ |
| "//modules/cmsis_6", |
| ], |
| "@zephyr_kconfig//:CONFIG_CPU_AARCH32_CORTEX_A=true": [ |
| "//modules/cmsis", |
| ], |
| "@zephyr_kconfig//:CONFIG_CPU_AARCH32_CORTEX_R=true": [ |
| "//modules/cmsis", |
| ], |
| "@zephyr_kconfig//:CONFIG_XTENSA=true": [ |
| "//arch/xtensa:xtensa_hal", |
| "//arch/xtensa/core:zsr_header_library", |
| ], |
| "@zephyr_kconfig//:CONFIG_ARC=true": [ |
| "//arch/arc:headers", |
| ], |
| "@zephyr_kconfig//:CONFIG_ARM64=true": [ |
| "//arch/arm64:headers", |
| ], |
| "@zephyr_kconfig//:CONFIG_RISCV=true": [ |
| "//arch/riscv:headers", |
| ], |
| "@zephyr_kconfig//:CONFIG_RX=true": [ |
| "//arch/rx:headers", |
| ], |
| "@zephyr_kconfig//:CONFIG_SPARC=true": [ |
| "//arch/sparc:headers", |
| ], |
| "@zephyr_kconfig//:CONFIG_X86=true": [ |
| "//arch/x86:headers", |
| ], |
| }), |
| ) |
| |
| cc_library( |
| name = "zephyr", |
| deps = [ |
| ":arch_specific_deps", |
| ":hal_soc_headers_library", |
| ":internal_zephyr_mandatory_deps", |
| ":internal_zephyr_optional_deps", |
| "//include:zephyr", |
| ], |
| ) |
