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amlogic_utils.bzl
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amlogic_utils.bzl
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"""Functions that are useful in the common kernel package (usually `//common`)."""
load("@bazel_skylib//lib:dicts.bzl", "dicts")
load("@bazel_skylib//lib:selects.bzl", "selects")
load("@bazel_skylib//rules:common_settings.bzl", "bool_flag", "string_flag")
load("@bazel_skylib//rules:write_file.bzl", "write_file")
load(
"//build/kernel/kleaf:kernel.bzl",
"kernel_abi",
"kernel_abi_dist",
"kernel_build",
"kernel_build_config",
"kernel_compile_commands",
"kernel_filegroup",
"kernel_images",
"kernel_kythe",
"kernel_modules_install",
"kernel_unstripped_modules_archive",
"merged_kernel_uapi_headers",
)
load("//build/bazel_common_rules/dist:dist.bzl", "copy_to_dist_dir")
load("//build/kernel/kleaf/impl:gki_artifacts.bzl", "gki_artifacts", "gki_artifacts_prebuilts")
load("//build/kernel/kleaf:print_debug.bzl", "print_debug")
load("@kernel_toolchain_info//:dict.bzl", "BRANCH", "common_kernel_package")
# Always collect_unstripped_modules for common kernels.
_COLLECT_UNSTRIPPED_MODULES = True
def define_common_amlogic(
name,
outs,
dtbo_srcs,
build_config = None,
module_outs = None,
make_goals = None,
define_abi_targets = None,
kmi_symbol_list = None,
kmi_symbol_list_add_only = None,
module_grouping = None,
unstripped_modules_archive = None,
dist_dir = None,
ext_modules = None,
kconfig_ext = None,
kconfig_ext_srcs = None):
"""Define target for amlogic.
Note: This is a mixed build.
Requires [`define_common_kernels`](#define_common_kernels) to be called in the same package.
Args:
name: name of target. Usually `"amlogic"`.
build_config: See [kernel_build.build_config](#kernel_build-build_config). If `None`,
default to `"common_drivers/build.config.amlogic.bazel"`.
outs: See [kernel_build.outs](#kernel_build-outs).
module_outs: See [kernel_build.module_outs](#kernel_build-module_outs). The list of
in-tree kernel modules.
make_goals: See [kernel_build.make_goals](#kernel_build-make_goals). A list of strings
defining targets for the kernel build.
define_abi_targets: See [kernel_abi.define_abi_targets](#kernel_abi-define_abi_targets).
kmi_symbol_list: See [kernel_build.kmi_symbol_list](#kernel_build-kmi_symbol_list).
kmi_symbol_list_add_only: See [kernel_abi.kmi_symbol_list_add_only](#kernel_abi-kmi_symbol_list_add_only).
module_grouping: See [kernel_abi.module_grouping](#kernel_abi-module_grouping).
unstripped_modules_archive: See [kernel_abi.unstripped_modules_archive](#kernel_abi-unstripped_modules_archive).
dist_dir: Argument to `copy_to_dist_dir`. If `None`, default is `"out/{BRANCH}/dist"`.
"""
if build_config == None:
build_config = "common_drivers/build.config.amlogic.bazel"
if kmi_symbol_list == None:
kmi_symbol_list = "//common:android/abi_gki_aarch64_amlogic" if define_abi_targets else None
if kmi_symbol_list_add_only == None:
kmi_symbol_list_add_only = True if define_abi_targets else None
if dist_dir == None:
dist_dir = "out/{branch}/dist".format(branch = BRANCH)
# Also refer to the list of ext modules for ABI monitoring targets
_kernel_modules = ext_modules;
kernel_build(
name = name,
outs = outs,
srcs = [":common_kernel_sources"] + kconfig_ext_srcs,
# List of in-tree kernel modules.
module_outs = module_outs,
build_config = build_config,
# Enable mixed build.
base_kernel = ":kernel_aarch64_download_or_build",
kmi_symbol_list = kmi_symbol_list,
collect_unstripped_modules = _COLLECT_UNSTRIPPED_MODULES,
strip_modules = True,
make_goals = make_goals,
kconfig_ext = kconfig_ext,
)
# enable ABI Monitoring
# based on the instructions here:
# https://android.googlesource.com/kernel/build/+/refs/heads/main/kleaf/docs/abi_device.md
# https://android-review.googlesource.com/c/kernel/build/+/2308912
kernel_abi(
name = name + "_abi",
kernel_build = name,
define_abi_targets = define_abi_targets,
kernel_modules = _kernel_modules,
kmi_symbol_list_add_only = kmi_symbol_list_add_only,
module_grouping = module_grouping,
unstripped_modules_archive = unstripped_modules_archive,
)
kernel_modules_install(
name = name + "_modules_install",
kernel_build = name,
# List of external modules.
kernel_modules = _kernel_modules,
)
merged_kernel_uapi_headers(
name = name + "_merged_kernel_uapi_headers",
kernel_build = name,
kernel_modules = _kernel_modules,
)
kernel_images(
name = name + "_images",
build_dtbo = True,
dtbo_srcs = [":" + name + "/" + e for e in dtbo_srcs],
build_initramfs = True,
kernel_build = name,
kernel_modules_install = name + "_modules_install",
)
dist_targets = [
name,
name + "_images",
name + "_modules_install",
# Mixed build: Additional GKI artifacts.
":kernel_aarch64_download_or_build",
":kernel_aarch64_additional_artifacts_download_or_build",
name + "_merged_kernel_uapi_headers",
]
copy_to_dist_dir(
name = name + "_dist",
data = dist_targets,
dist_dir = dist_dir,
flat = True,
log = "info",
)