f0c4a848da
Compile zram/zsmalloc as unprotected vendor_dlkm. While at it update corresponding system_dlkm in blocklist so that only vendor_dlkm modules are loaded. Change-Id: I620215fa42e4b8009e3b504ac4e3db84ac178023 Signed-off-by: Wasim Nazir <quic_wasimn@quicinc.com>
551 lines
20 KiB
Python
551 lines
20 KiB
Python
load("//build/bazel_common_rules/dist:dist.bzl", "copy_to_dist_dir")
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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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"super_image",
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"unsparsed_image",
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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_gki_ramdisk_prebuilt_binary",
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"get_vendor_ramdisk_binaries",
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)
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load("@bazel_skylib//rules:write_file.bzl", "write_file")
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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(":avb_boot_img.bzl", "avb_sign_boot_image")
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load(":dpm_image.bzl", "define_dpm_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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load(":modules_unprotected.bzl", "get_unprotected_vendor_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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# keep earlycon addr in earlycon cmdline param only when provided explicitly in target's bazel file
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# otherwise, rely on stdout-path
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earlycon_param = "={}".format(boot_image_opts.earlycon_addr) if boot_image_opts.earlycon_addr != None else ""
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earlycon_param = '[ "$KERNEL_CMDLINE_CONSOLE_AUTO" != "0" ] && KERNEL_VENDOR_CMDLINE+=\' earlycon{} \''.format(earlycon_param)
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write_file(
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name = "{}_build_config_bazel".format(target),
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out = "build.config.msm.{}.generated".format(target),
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content = [
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'KERNEL_DIR="msm-kernel"',
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"VARIANTS=({})".format(" ".join(la_variants)),
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"MSM_ARCH={}".format(msm_target.replace("-", "_")),
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"VARIANT={}".format(variant.replace("-", "_")),
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"ABL_SRC=bootable/bootloader/edk2",
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"BOOT_IMAGE_HEADER_VERSION={}".format(boot_image_opts.boot_image_header_version),
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"BASE_ADDRESS=0x%X" % boot_image_opts.base_address,
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"PAGE_SIZE={}".format(boot_image_opts.page_size),
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"BUILD_VENDOR_DLKM=1",
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"PREPARE_SYSTEM_DLKM=1",
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"SUPER_IMAGE_SIZE=0x%X" % boot_image_opts.super_image_size,
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"TRIM_UNUSED_MODULES=1",
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"BUILD_INIT_BOOT_IMG=1",
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"LZ4_RAMDISK={}".format(int(boot_image_opts.lz4_ramdisk)),
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'[ -z "$DT_OVERLAY_SUPPORT" ] && DT_OVERLAY_SUPPORT=1',
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earlycon_param,
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"KERNEL_VENDOR_CMDLINE+=' {} '".format(" ".join(boot_image_opts.kernel_vendor_cmdline_extras)),
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"VENDOR_BOOTCONFIG+='androidboot.first_stage_console=1 androidboot.hardware=qcom_kp'",
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"", # Needed for newline at end of file
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],
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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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board_cmdline_extras = " ".join(boot_image_opts.board_kernel_cmdline_extras)
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if board_cmdline_extras:
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write_file(
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name = "{}_extra_cmdline".format(target),
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out = "board_extra_cmdline_{}".format(target),
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content = [board_cmdline_extras, ""],
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)
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board_bc_extras = " ".join(boot_image_opts.board_bootconfig_extras)
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if board_bc_extras:
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write_file(
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name = "{}_extra_bootconfig".format(target),
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out = "board_extra_bootconfig_{}".format(target),
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content = [board_bc_extras, ""],
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)
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def _define_kernel_build(
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target,
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msm_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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common_gki_mod_list = [] + COMMON_GKI_MODULES_LIST
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for mod in get_unprotected_vendor_modules_list(msm_target):
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common_gki_mod_list.remove(mod)
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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_mod_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_aarch64" if define_abi_targets else None,
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protected_modules_list = "android/gki_aarch64_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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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_opts = boot_image_opts(),
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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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dpm_overlay = False):
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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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touch "$@"
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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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if build_boot:
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artifacts = "{}_images".format(target)
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else:
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artifacts = "{}_gki_artifacts".format(base_kernel)
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avb_sign_boot_image(
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name = "{}_avb_sign_boot_image".format(target),
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artifacts = artifacts,
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avbtool = "//prebuilts/kernel-build-tools:linux-x86/bin/avbtool",
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key = "//tools/mkbootimg:gki/testdata/testkey_rsa4096.pem",
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props = [
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"com.android.build.boot.os_version:13",
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"com.android.build.boot.security_patch:2023-05-05",
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],
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boot_partition_size = int(boot_image_opts.boot_partition_size),
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)
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if dpm_overlay:
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define_dpm_image(target)
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native.filegroup(
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name = "{}_system_dlkm_image_file".format(target),
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srcs = ["{}_images".format(base_kernel)],
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output_group = "system_dlkm.img",
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)
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native.filegroup(
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name = "{}_vendor_dlkm_image_file".format(target),
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srcs = [":{}_images".format(target)],
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output_group = "vendor_dlkm.img",
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)
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super_image(
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name = "{}_super_image".format(target),
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system_dlkm_image = ":{}_system_dlkm_image_file".format(target),
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vendor_dlkm_image = ":{}_vendor_dlkm_image_file".format(target),
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)
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unsparsed_image(
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name = "{}_unsparsed_image".format(target),
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src = "{}_super_image".format(target),
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out = "super_unsparsed.img",
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)
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def _define_kernel_dist(
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target,
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msm_target,
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variant,
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base_kernel,
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define_abi_targets,
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boot_image_opts = boot_image_opts(),
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dpm_overlay = False):
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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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define_abi_targets: boolean determining if ABI targets should be defined
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"""
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dist_dir = get_out_dir(msm_target, variant) + "/dist"
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msm_dist_targets = [base_kernel]
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if define_abi_targets:
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msm_dist_targets.append("{}_gki_artifacts".format(base_kernel))
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native.genrule(
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name = "{}_system_dlkm_module_blocklist".format(target),
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srcs = ["modules.systemdlkm_blocklist.msm.{}".format(msm_target)],
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outs = ["{}/system_dlkm.modules.blocklist".format(target)],
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cmd = """
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mkdir -p "$$(dirname "$@")"
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sed -e '/^#/d' -e '/^$$/d' $(SRCS) > "$@"
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""",
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)
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msm_dist_targets.extend([
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# do not sort
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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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":{}_unsparsed_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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":{}_system_dlkm_module_blocklist".format(target),
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])
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vendor_unprotected_dlkm = " ".join(get_unprotected_vendor_modules_list(msm_target))
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if vendor_unprotected_dlkm:
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msm_dist_targets.extend(["{}_vendor_dlkm_module_unprotectedlist".format(target)])
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msm_dist_targets.append("{}_avb_sign_boot_image".format(target))
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if dpm_overlay:
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msm_dist_targets.append(":{}_dpm_image".format(target))
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board_cmdline_extras = " ".join(boot_image_opts.board_kernel_cmdline_extras)
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if board_cmdline_extras:
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msm_dist_targets.append("{}_extra_cmdline".format(target))
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board_bc_extras = " ".join(boot_image_opts.board_bootconfig_extras)
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if board_bc_extras:
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msm_dist_targets.append("{}_extra_bootconfig".format(target))
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if define_abi_targets:
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kernel_abi_dist(
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name = "{}_dist".format(target),
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kernel_abi = ":{}_abi".format(target),
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kernel_build_add_vmlinux = False,
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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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else:
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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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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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dpm_overlay = False,
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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")
|
|
variant: variant of kernel to build (e.g. "gki")
|
|
in_tree_module_list: list of in-tree modules
|
|
kmi_enforced: boolean determining if the KMI contract should be enforced
|
|
dpm_overlay: boolean determining if a `dpm.img` should be generated
|
|
boot_image_header_version: boot image header version (for `boot.img`)
|
|
base_address: edk2 base address
|
|
page_size: kernel page size
|
|
super_image_size: size of super image partition
|
|
lz4_ramdisk: whether to use an lz4-compressed ramdisk
|
|
"""
|
|
|
|
if not variant in la_variants:
|
|
fail("{} not defined in target_variants.bzl la_variants!".format(variant))
|
|
|
|
# Enforce format of "//msm-kernel:target-foo_variant-bar" (underscore is the delimeter
|
|
# between target and variant)
|
|
target = msm_target.replace("_", "-") + "_" + variant.replace("_", "-")
|
|
|
|
if variant == "consolidate":
|
|
base_kernel = "//common:kernel_aarch64_consolidate"
|
|
define_abi_targets = False
|
|
else:
|
|
base_kernel = "//common:kernel_aarch64"
|
|
define_abi_targets = True
|
|
|
|
dtb_list = get_dtb_list(msm_target)
|
|
dtbo_list = get_dtbo_list(msm_target)
|
|
dtstree = get_dtstree(msm_target)
|
|
vendor_ramdisk_binaries = get_vendor_ramdisk_binaries(target)
|
|
gki_ramdisk_prebuilt_binary = get_gki_ramdisk_prebuilt_binary()
|
|
build_config_fragments = get_build_config_fragments(msm_target)
|
|
vendor_dlkm_module_unprotected_list = get_unprotected_vendor_modules_list(msm_target)
|
|
|
|
# Can't enable dpm_overlay if no overlays are listed
|
|
if len(dtbo_list) == 0 and dpm_overlay:
|
|
dpm_overlay = False
|
|
|
|
vendor_unprotected_dlkm = " ".join(vendor_dlkm_module_unprotected_list)
|
|
if vendor_unprotected_dlkm:
|
|
write_file(
|
|
name = "{}_vendor_dlkm_module_unprotectedlist".format(target),
|
|
out = "{}/vendor_dlkm.modules.unprotectedlist".format(target),
|
|
content = [vendor_unprotected_dlkm, ""],
|
|
)
|
|
|
|
in_tree_module_list += vendor_dlkm_module_unprotected_list
|
|
|
|
_define_build_config(
|
|
msm_target,
|
|
target,
|
|
variant,
|
|
boot_image_opts = boot_image_opts,
|
|
build_config_fragments = build_config_fragments,
|
|
)
|
|
|
|
_define_kernel_build(
|
|
target,
|
|
msm_target,
|
|
base_kernel,
|
|
in_tree_module_list,
|
|
dtb_list,
|
|
dtbo_list,
|
|
dtstree,
|
|
define_abi_targets,
|
|
kmi_enforced,
|
|
)
|
|
|
|
_define_image_build(
|
|
target,
|
|
msm_target,
|
|
base_kernel,
|
|
# When building a GKI target, we take the kernel and boot.img directly from
|
|
# common, so no need to build here.
|
|
build_boot = False if define_abi_targets else True,
|
|
build_dtbo = True if dtbo_list else False,
|
|
build_initramfs = True,
|
|
build_vendor_boot = True,
|
|
dtbo_list = dtbo_list,
|
|
vendor_ramdisk_binaries = vendor_ramdisk_binaries,
|
|
gki_ramdisk_prebuilt_binary = gki_ramdisk_prebuilt_binary,
|
|
boot_image_opts = boot_image_opts,
|
|
boot_image_outs = None if dtb_list else ["boot.img", "init_boot.img"],
|
|
in_tree_module_list = in_tree_module_list,
|
|
dpm_overlay = dpm_overlay,
|
|
)
|
|
|
|
_define_kernel_dist(
|
|
target,
|
|
msm_target,
|
|
variant,
|
|
base_kernel,
|
|
define_abi_targets,
|
|
boot_image_opts = boot_image_opts,
|
|
dpm_overlay = dpm_overlay,
|
|
)
|
|
|
|
_define_uapi_library(target)
|
|
|
|
define_abl_dist(target, msm_target, variant)
|
|
|
|
define_dtc_dist(target, msm_target, variant)
|
|
|
|
define_extras(target)
|