432 lines
14 KiB
Python
432 lines
14 KiB
Python
load("//build/bazel_common_rules/dist:dist.bzl", "copy_to_dist_dir")
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load("//build/bazel_common_rules/test_mappings:test_mappings.bzl", "test_mappings_dist")
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load(
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"//build/kernel/kleaf:kernel.bzl",
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"kernel_abi",
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"kernel_abi_dist",
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"kernel_build",
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"kernel_build_config",
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"kernel_compile_commands",
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"kernel_images",
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"kernel_modules_install",
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"kernel_uapi_headers_cc_library",
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"merged_kernel_uapi_headers",
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)
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load(
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"//build:msm_kernel_extensions.bzl",
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"define_extras",
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"get_build_config_fragments",
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"get_dtb_list",
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"get_dtbo_list",
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"get_dtstree",
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"get_vendor_ramdisk_binaries",
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"get_gki_ramdisk_prebuilt_binary",
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)
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load(":msm_common.bzl", "define_top_level_config", "gen_config_without_source_lines", "get_out_dir")
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load(":msm_dtc.bzl", "define_dtc_dist")
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load(":msm_abl.bzl", "define_abl_dist")
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load(":super_image.bzl", "super_image")
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load(":image_opts.bzl", "boot_image_opts")
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load(":target_variants.bzl", "la_variants")
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load(":modules.bzl", "COMMON_GKI_MODULES_LIST")
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def _define_build_config(
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msm_target,
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target,
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variant,
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boot_image_opts = boot_image_opts(),
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build_config_fragments = []):
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"""Creates a kernel_build_config for an MSM target
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Creates a `kernel_build_config` for input to a `kernel_build` rule.
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Args:
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msm_target: name of target platform (e.g. "kalama")
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variant: variant of kernel to build (e.g. "gki")
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"""
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gen_config_command = """
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cat << 'EOF' > "$@"
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KERNEL_DIR="msm-kernel"
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VARIANTS=(%s)
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MSM_ARCH=%s
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VARIANT=%s
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ABL_SRC=bootable/bootloader/edk2
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BOOT_IMAGE_HEADER_VERSION=%d
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BASE_ADDRESS=0x%X
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PAGE_SIZE=%d
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BUILD_VENDOR_DLKM=1
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PREPARE_SYSTEM_DLKM=1
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SUPER_IMAGE_SIZE=0x%X
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TRIM_UNUSED_MODULES=1
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BUILD_INIT_BOOT_IMG=1
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LZ4_RAMDISK=%d
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[ -z "$$DT_OVERLAY_SUPPORT" ] && DT_OVERLAY_SUPPORT=1
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if [ "$$KERNEL_CMDLINE_CONSOLE_AUTO" != "0" ]; then
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KERNEL_VENDOR_CMDLINE+=' earlycon=%s '
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fi
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KERNEL_VENDOR_CMDLINE+=' %s '
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VENDOR_BOOTCONFIG+='androidboot.first_stage_console=1 androidboot.hardware=qcom_kp'
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EOF
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""" % (
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" ".join(la_variants),
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msm_target.replace("-", "_"),
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variant.replace("-", "_"),
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boot_image_opts.boot_image_header_version,
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boot_image_opts.base_address,
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boot_image_opts.page_size,
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boot_image_opts.super_image_size,
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int(boot_image_opts.lz4_ramdisk),
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boot_image_opts.earlycon_addr,
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" ".join(boot_image_opts.kernel_vendor_cmdline_extras),
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)
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# Generate the build config
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native.genrule(
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name = "{}_build_config_bazel".format(target),
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srcs = [],
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outs = ["build.config.msm.{}.generated".format(target)],
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cmd_bash = gen_config_command,
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)
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top_level_config = define_top_level_config(target)
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common_config = gen_config_without_source_lines("build.config.common", target)
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# Concatenate build config fragments to form the final config
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kernel_build_config(
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name = "{}_build_config".format(target),
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srcs = [
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# do not sort
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top_level_config,
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"build.config.constants",
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common_config,
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"build.config.aarch64",
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":{}_build_config_bazel".format(target),
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] + [fragment for fragment in build_config_fragments] + [
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"build.config.msm.common",
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"build.config.msm.gki",
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],
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)
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def _define_kernel_build(
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target,
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base_kernel,
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in_tree_module_list,
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dtb_list,
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dtbo_list,
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dtstree,
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define_abi_targets,
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kmi_enforced):
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"""Creates a `kernel_build` and other associated definitions
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This is where the main kernel build target is created (e.g. `//msm-kernel:kalama_gki`).
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Many other rules will take this `kernel_build` as an input.
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Args:
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target: name of main Bazel target (e.g. `kalama_gki`)
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base_kernel: base kernel to pass into `kernel_build` (e.g. `//common:kernel_aarch64`)
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in_tree_module_list: list of in-tree modules
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dtb_list: device tree blobs expected to be built
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dtbo_list: device tree overlay blobs expected to be built
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define_abi_targets: boolean determining if ABI targets should be defined
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kmi_enforced: boolean determining if the KMI contract should be enforced
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"""
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out_list = [".config", "Module.symvers"]
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if dtb_list:
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out_list += dtb_list
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if dtbo_list:
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out_list += dtbo_list
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kernel_build(
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name = target,
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module_outs = in_tree_module_list,
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module_implicit_outs = COMMON_GKI_MODULES_LIST,
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outs = out_list,
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build_config = ":{}_build_config".format(target),
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dtstree = dtstree,
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base_kernel = base_kernel,
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kmi_symbol_list = "android/abi_gki_aarch64_qcom" if define_abi_targets else None,
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additional_kmi_symbol_lists = ["{}_all_kmi_symbol_lists".format(base_kernel)] if define_abi_targets else None,
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protected_exports_list = "android/abi_gki_protected_exports" if define_abi_targets else None,
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protected_modules_list = "android/gki_protected_modules" if define_abi_targets else None,
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collect_unstripped_modules = define_abi_targets,
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visibility = ["//visibility:public"],
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)
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if define_abi_targets:
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kernel_abi(
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name = "{}_abi".format(target),
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kernel_build = ":{}".format(target),
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define_abi_targets = True,
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abi_definition_stg = "android/abi_gki_aarch64.stg",
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kmi_enforced = kmi_enforced,
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module_grouping = False,
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kmi_symbol_list_add_only = True,
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visibility = ["//visibility:public"],
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)
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kernel_modules_install(
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name = "{}_modules_install".format(target),
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kernel_build = ":{}".format(target),
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)
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merged_kernel_uapi_headers(
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name = "{}_merged_kernel_uapi_headers".format(target),
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kernel_build = ":{}".format(target),
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)
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kernel_compile_commands(
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name = "{}_compile_commands".format(target),
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kernel_build = ":{}".format(target),
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)
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def _define_image_build(
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target,
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msm_target,
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base_kernel,
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build_boot = True,
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build_dtbo = False,
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build_initramfs = False,
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build_vendor_boot = False,
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build_vendor_kernel_boot = False,
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build_vendor_dlkm = True,
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build_system_dlkm = False,
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boot_image_outs = None,
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dtbo_list = [],
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vendor_ramdisk_binaries = None,
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gki_ramdisk_prebuilt_binary = None,
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in_tree_module_list = []):
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"""Creates a `kernel_images` target which will generate bootable device images
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Args:
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target: name of main Bazel target (e.g. `kalama_gki`)
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msm_target: name of target platform (e.g. "kalama")
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base_kernel: kernel_build base kernel
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build_boot: whether to build a boot image
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build_dtbo: whether to build a dtbo image
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build_initramfs: whether to build an initramfs image
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build_vendor_boot: whether to build a vendor boot image
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build_vendor_kernel_boot: whether to build a vendor kernel boot image
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build_vendor_dlkm: whether to build a vendor dlkm image
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build_system_dlkm: whether to build a system dlkm image
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boot_image_outs: boot image outputs,
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dtbo_list: list of device tree overlay blobs to be built into `dtbo.img`
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vendor_ramdisk_binaries: ramdisk binaries (cpio archives)
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"""
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# Generate the vendor_dlkm list
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native.genrule(
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name = "{}_vendor_dlkm_modules_list_generated".format(target),
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srcs = [],
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outs = ["modules.list.vendor_dlkm.{}".format(target)],
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cmd_bash = """
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for module in {mod_list}; do
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basename "$$module" >> "$@"
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done
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""".format(mod_list = " ".join(in_tree_module_list))
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)
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kernel_images(
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name = "{}_images".format(target),
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kernel_modules_install = ":{}_modules_install".format(target),
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kernel_build = ":{}".format(target),
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base_kernel_images = "{}_images".format(base_kernel),
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build_boot = build_boot,
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build_dtbo = build_dtbo,
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build_initramfs = build_initramfs,
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build_vendor_boot = build_vendor_boot,
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build_vendor_kernel_boot = build_vendor_kernel_boot,
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build_vendor_dlkm = build_vendor_dlkm,
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build_system_dlkm = build_system_dlkm,
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modules_list = "modules.list.msm.{}".format(msm_target),
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system_dlkm_modules_list = "android/gki_system_dlkm_modules",
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vendor_dlkm_modules_list = ":{}_vendor_dlkm_modules_list_generated".format(target),
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system_dlkm_modules_blocklist = "modules.systemdlkm_blocklist.msm.{}".format(msm_target),
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vendor_dlkm_modules_blocklist = "modules.vendor_blocklist.msm.{}".format(msm_target),
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dtbo_srcs = [":{}/".format(target) + d for d in dtbo_list] if dtbo_list else None,
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vendor_ramdisk_binaries = vendor_ramdisk_binaries,
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gki_ramdisk_prebuilt_binary = gki_ramdisk_prebuilt_binary,
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boot_image_outs = boot_image_outs,
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deps = [
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"modules.list.msm.{}".format(msm_target),
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"modules.vendor_blocklist.msm.{}".format(msm_target),
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"modules.systemdlkm_blocklist.msm.{}".format(msm_target),
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"android/gki_system_dlkm_modules",
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],
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)
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# Defined separately because `super.img` is not generated by upstream kleaf
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super_image(
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name = "{}_super_image".format(target),
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kernel_modules_install = "{}_modules_install".format(target),
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deps = [
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"{}_images_system_dlkm_image".format(base_kernel),
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":{}_images_vendor_dlkm_image".format(target),
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],
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)
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def _define_kernel_dist(target, msm_target, variant, base_kernel):
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"""Creates distribution targets for kernel builds
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When Bazel builds everything, the outputs end up buried in `bazel-bin`.
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These rules are used to copy the build artifacts to `out/msm-kernel-<target>/dist/`
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with proper permissions, etc.
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Args:
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target: name of main Bazel target (e.g. `kalama_gki`)
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msm_target: name of just the platform target (e.g. `kalama`)
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variant: name of just the variant (e.g. `gki`)
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base_kernel: base kernel to fetch artifacts from (e.g. `//common:kernel_aarch64`)
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"""
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dist_dir = get_out_dir(msm_target, variant) + "/dist"
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msm_dist_targets = [
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# do not sort
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base_kernel,
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"{}_images_system_dlkm_image".format(base_kernel),
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"{}_headers".format(base_kernel),
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":{}".format(target),
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":{}_images".format(target),
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":{}_super_image".format(target),
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":{}_merged_kernel_uapi_headers".format(target),
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":{}_build_config".format(target),
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]
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kernel_abi_dist(
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name = "{}_abi_dist".format(target),
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kernel_abi = ":{}_abi".format(target),
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data = msm_dist_targets,
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dist_dir = dist_dir,
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flat = True,
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log = "info",
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)
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copy_to_dist_dir(
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name = "{}_dist".format(target),
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data = msm_dist_targets,
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dist_dir = dist_dir,
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flat = True,
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wipe_dist_dir = True,
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allow_duplicate_filenames = True,
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mode_overrides = {
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# do not sort
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"**/*.elf": "755",
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"**/vmlinux": "755",
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"**/Image": "755",
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"**/*.dtb*": "755",
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"**/LinuxLoader*": "755",
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"**/*": "644",
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},
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log = "info",
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)
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native.alias(
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name = "{}_test_mapping".format(target),
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actual = ":{}_dist".format(target),
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)
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test_mappings_dist(
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name = "{}_test_mapping_dist".format(target),
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dist_dir = dist_dir,
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)
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def _define_uapi_library(target):
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"""Define a cc_library for userspace programs to use
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Args:
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target: kernel_build target name (e.g. "kalama_gki")
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"""
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kernel_uapi_headers_cc_library(
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name = "{}_uapi_header_library".format(target),
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kernel_build = ":{}".format(target),
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)
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def define_msm_la(
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msm_target,
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variant,
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in_tree_module_list,
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kmi_enforced = True,
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boot_image_opts = boot_image_opts()):
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"""Top-level kernel build definition macro for an MSM platform
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Args:
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msm_target: name of target platform (e.g. "kalama")
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variant: variant of kernel to build (e.g. "gki")
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in_tree_module_list: list of in-tree modules
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kmi_enforced: boolean determining if the KMI contract should be enforced
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boot_image_header_version: boot image header version (for `boot.img`)
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base_address: edk2 base address
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page_size: kernel page size
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super_image_size: size of super image partition
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lz4_ramdisk: whether to use an lz4-compressed ramdisk
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"""
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if not variant in la_variants:
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fail("{} not defined in target_variants.bzl la_variants!".format(variant))
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# Enforce format of "//msm-kernel:target-foo_variant-bar" (underscore is the delimeter
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# between target and variant)
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target = msm_target.replace("_", "-") + "_" + variant.replace("_", "-")
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if variant == "consolidate":
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base_kernel = "//common:kernel_aarch64_consolidate"
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define_abi_targets = False
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else:
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base_kernel = "//common:kernel_aarch64"
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define_abi_targets = True
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dtb_list = get_dtb_list(msm_target)
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dtbo_list = get_dtbo_list(msm_target)
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dtstree = get_dtstree(msm_target)
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vendor_ramdisk_binaries = get_vendor_ramdisk_binaries(target)
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gki_ramdisk_prebuilt_binary = get_gki_ramdisk_prebuilt_binary()
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build_config_fragments = get_build_config_fragments(msm_target)
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_define_build_config(
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msm_target,
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target,
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variant,
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boot_image_opts = boot_image_opts,
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build_config_fragments = build_config_fragments,
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)
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_define_kernel_build(
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target,
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base_kernel,
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in_tree_module_list,
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dtb_list,
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dtbo_list,
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dtstree,
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define_abi_targets,
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kmi_enforced,
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)
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_define_image_build(
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target,
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msm_target,
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base_kernel,
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build_boot = True,
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build_dtbo = True if dtbo_list else False,
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build_initramfs = True,
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build_vendor_boot = True if dtbo_list else False,
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dtbo_list = dtbo_list,
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vendor_ramdisk_binaries = vendor_ramdisk_binaries,
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gki_ramdisk_prebuilt_binary = gki_ramdisk_prebuilt_binary,
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boot_image_outs = None if dtb_list else ["boot.img", "init_boot.img"],
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in_tree_module_list = in_tree_module_list,
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)
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_define_kernel_dist(target, msm_target, variant, base_kernel)
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_define_uapi_library(target)
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define_abl_dist(target, msm_target, variant)
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define_dtc_dist(target, msm_target, variant)
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define_extras(target)
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