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platform_vendor_tequila/config/BoardConfigKernel.mk

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kernel: Use LLVM's substitutes for GNU binutils if possible Co-authored-by: LuK1337 <priv.luk@gmail.com> Change-Id: I06884fb774b6548aad68942f1ce659384521c62a
2022-06-15 17:46:57 +02:00
# Copyright (C) 2018-2022 The LineageOS Project
lineage: Move some kernel definitions to BoardConfigKernel Kernel source settings should always come at BoardConfig population time so things that use the variable later don't end up pointing to an empty or wrong variable. The following is also squashed in: Author: Christopher N. Hesse <raymanfx@gmail.com> Date: Fri Aug 10 00:23:54 2018 +0200 tasks: kernel: Honor prebuilt kernel flag For devices that want to use a prebuilt kernel, TARGET_KERNEL_SOURCE would still be set to TARGET_AUTO_KDIR, meaning the build system would still try to build the kernel if TARGET_AUTO_KDIR was present. Setting TARGET_PREBUILT_KERNEL indicates this is not wanted, so don't attempt to do it. Change-Id: Ic79b3ac1b9c946fd258ada43dce2b08bb74ea0d9 Change-Id: If046b86ff0d18c76898e90295be873a8379f678a
2018-09-21 00:19:57 +02:00
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#
# Kernel build configuration variables
# ====================================
#
# These config vars are usually set in BoardConfig.mk:
#
# TARGET_KERNEL_SOURCE = Kernel source dir, optional, defaults
# to kernel/$(TARGET_DEVICE_DIR)
# TARGET_KERNEL_ARCH = Kernel Arch
# TARGET_KERNEL_CROSS_COMPILE_PREFIX = Compiler prefix (e.g. arm-eabi-)
# defaults to arm-linux-androidkernel- for arm
kernel: Use linux-android- toolchains to build kernel on aarch64 and x86 * -androidkernel ones became symlinks to -android ones long time ago, use -android executables directly to simplify the logic on these platforms. * Keep arm on -androidkernel because it doesn't boot for some reason. Change-Id: I97dd93121fc0e805a965e3f8b84466dd7bd686c0
2019-09-08 06:44:49 +02:00
# aarch64-linux-android- for arm64
# x86_64-linux-android- for x86
lineage: Move some kernel definitions to BoardConfigKernel Kernel source settings should always come at BoardConfig population time so things that use the variable later don't end up pointing to an empty or wrong variable. The following is also squashed in: Author: Christopher N. Hesse <raymanfx@gmail.com> Date: Fri Aug 10 00:23:54 2018 +0200 tasks: kernel: Honor prebuilt kernel flag For devices that want to use a prebuilt kernel, TARGET_KERNEL_SOURCE would still be set to TARGET_AUTO_KDIR, meaning the build system would still try to build the kernel if TARGET_AUTO_KDIR was present. Setting TARGET_PREBUILT_KERNEL indicates this is not wanted, so don't attempt to do it. Change-Id: Ic79b3ac1b9c946fd258ada43dce2b08bb74ea0d9 Change-Id: If046b86ff0d18c76898e90295be873a8379f678a
2018-09-21 00:19:57 +02:00
#
lineage: config: Make LLVM kernel compile the default * GCC was deprecated awhile ago, the large majority of devices should now be using this. Clang should be opt out as opposed to opt in. Change-Id: Ie388aff8eca189663f2f615f7d059e47eaf2dce3
2022-03-07 19:29:34 +01:00
# TARGET_KERNEL_CLANG_COMPILE = Compile kernel with clang, defaults to true
kernel: Use LLVM's substitutes for GNU binutils if possible Co-authored-by: LuK1337 <priv.luk@gmail.com> Change-Id: I06884fb774b6548aad68942f1ce659384521c62a
2022-06-15 17:46:57 +02:00
# TARGET_KERNEL_VERSION = Reported kernel version in top level kernel
# makefile. Can be overriden in device trees
# in the event of prebuilt kernel.
lineage: Move some kernel definitions to BoardConfigKernel Kernel source settings should always come at BoardConfig population time so things that use the variable later don't end up pointing to an empty or wrong variable. The following is also squashed in: Author: Christopher N. Hesse <raymanfx@gmail.com> Date: Fri Aug 10 00:23:54 2018 +0200 tasks: kernel: Honor prebuilt kernel flag For devices that want to use a prebuilt kernel, TARGET_KERNEL_SOURCE would still be set to TARGET_AUTO_KDIR, meaning the build system would still try to build the kernel if TARGET_AUTO_KDIR was present. Setting TARGET_PREBUILT_KERNEL indicates this is not wanted, so don't attempt to do it. Change-Id: Ic79b3ac1b9c946fd258ada43dce2b08bb74ea0d9 Change-Id: If046b86ff0d18c76898e90295be873a8379f678a
2018-09-21 00:19:57 +02:00
#
kernel: Allow setting dtbo target path prefix gs101 uses DTBO_OBJ/arch/arm64/boot/dts/google/dtbo.img vs DTBO_OBJ/arch/arm/boot/dtbo.img on previous devices. Change-Id: I945d31cb093fae97385cf84c273088ee7a4edf0b
2022-08-10 05:44:40 +02:00
# TARGET_KERNEL_DTBO_PREFIX = Override path prefix of TARGET_KERNEL_DTBO.
# Defaults to empty
kernel: Allow overriding dtbo target name gs101 kernel uses google/dtbo.img target for dtbo.img Change-Id: Ib03f35c0035f56d303771de9399bcce3d02c0775
2022-08-10 04:18:59 +02:00
# TARGET_KERNEL_DTBO = Name of the kernel Makefile target that
# generates dtbo.img. Defaults to dtbo.img
#
lineage: Move some kernel definitions to BoardConfigKernel Kernel source settings should always come at BoardConfig population time so things that use the variable later don't end up pointing to an empty or wrong variable. The following is also squashed in: Author: Christopher N. Hesse <raymanfx@gmail.com> Date: Fri Aug 10 00:23:54 2018 +0200 tasks: kernel: Honor prebuilt kernel flag For devices that want to use a prebuilt kernel, TARGET_KERNEL_SOURCE would still be set to TARGET_AUTO_KDIR, meaning the build system would still try to build the kernel if TARGET_AUTO_KDIR was present. Setting TARGET_PREBUILT_KERNEL indicates this is not wanted, so don't attempt to do it. Change-Id: Ic79b3ac1b9c946fd258ada43dce2b08bb74ea0d9 Change-Id: If046b86ff0d18c76898e90295be873a8379f678a
2018-09-21 00:19:57 +02:00
# KERNEL_TOOLCHAIN_PREFIX = Overrides TARGET_KERNEL_CROSS_COMPILE_PREFIX,
# Set this var in shell to override
# toolchain specified in BoardConfig.mk
# KERNEL_TOOLCHAIN = Path to toolchain, if unset, assumes
# TARGET_KERNEL_CROSS_COMPILE_PREFIX
# is in PATH
# USE_CCACHE = Enable ccache (global Android flag)
lineage: config: Use $(abspath .) instead of $(shell pwd) Change-Id: I7fec28b7cb507918b1b55dd368a74c927a8fc1d2
2021-03-23 18:46:09 +01:00
BUILD_TOP := $(abspath .)
lineage: Move some kernel definitions to BoardConfigKernel Kernel source settings should always come at BoardConfig population time so things that use the variable later don't end up pointing to an empty or wrong variable. The following is also squashed in: Author: Christopher N. Hesse <raymanfx@gmail.com> Date: Fri Aug 10 00:23:54 2018 +0200 tasks: kernel: Honor prebuilt kernel flag For devices that want to use a prebuilt kernel, TARGET_KERNEL_SOURCE would still be set to TARGET_AUTO_KDIR, meaning the build system would still try to build the kernel if TARGET_AUTO_KDIR was present. Setting TARGET_PREBUILT_KERNEL indicates this is not wanted, so don't attempt to do it. Change-Id: Ic79b3ac1b9c946fd258ada43dce2b08bb74ea0d9 Change-Id: If046b86ff0d18c76898e90295be873a8379f678a
2018-09-21 00:19:57 +02:00
TARGET_AUTO_KDIR := $(shell echo $(TARGET_DEVICE_DIR) | sed -e 's/^device/kernel/g')
TARGET_KERNEL_SOURCE ?= $(TARGET_AUTO_KDIR)
TARGET_KERNEL_ARCH := $(strip $(TARGET_KERNEL_ARCH))
ifeq ($(TARGET_KERNEL_ARCH),)
KERNEL_ARCH := $(TARGET_ARCH)
else
KERNEL_ARCH := $(TARGET_KERNEL_ARCH)
endif
kernel: Don't print grep error messages when checking version Avoids: $ lunch lineage_sdk_phone_x86 grep: build/make/target/board/emulator_x86/Makefile: No such file or directory (x4) Change-Id: Ie803d5ca93e6e7ae94625e7ee3ab0bf337e0515d
2022-07-08 00:03:22 +02:00
KERNEL_VERSION := $(shell grep -s "^VERSION = " $(TARGET_KERNEL_SOURCE)/Makefile | awk '{ print $$3 }')
KERNEL_PATCHLEVEL := $(shell grep -s "^PATCHLEVEL = " $(TARGET_KERNEL_SOURCE)/Makefile | awk '{ print $$3 }')
kernel: Use LLVM's substitutes for GNU binutils if possible Co-authored-by: LuK1337 <priv.luk@gmail.com> Change-Id: I06884fb774b6548aad68942f1ce659384521c62a
2022-06-15 17:46:57 +02:00
TARGET_KERNEL_VERSION ?= $(shell echo $(KERNEL_VERSION)"."$(KERNEL_PATCHLEVEL))
config: Update clang version to clang-r416183b1 * That's the default clang version on android-12.0.0_r1 Change-Id: I528d9a6aa497f7c9a0f53b0e778d0eeefaac0e9d
2021-10-05 22:28:51 +02:00
CLANG_PREBUILTS := $(BUILD_TOP)/prebuilts/clang/host/$(HOST_PREBUILT_TAG)/clang-r416183b1
lineage: Use $(HOST_PREBUILT_TAG) where possible Change-Id: If211d23ce72b3404368cd723cbb9ea801e61802c
2020-09-24 12:51:33 +02:00
GCC_PREBUILTS := $(BUILD_TOP)/prebuilts/gcc/$(HOST_PREBUILT_TAG)
kernel: Set kernel toolchain roots for aarch64, arm, and x86 The GCC toolchains are no longer added to the path by default, so we need to hardcode the full paths for these. Also set variables for every arch, and then set the toolchain to the arch specific var. This is so we can set the ARM32 cross compile flag for vDSO32 enabled kernels. Change-Id: I7e099a26a17f4a3cc9be6232a26c671e8fcfbdef
2019-09-06 23:26:34 +02:00
# arm64 toolchain
KERNEL_TOOLCHAIN_arm64 := $(GCC_PREBUILTS)/aarch64/aarch64-linux-android-4.9/bin
KERNEL_TOOLCHAIN_PREFIX_arm64 := aarch64-linux-android-
# arm toolchain
KERNEL_TOOLCHAIN_arm := $(GCC_PREBUILTS)/arm/arm-linux-androideabi-4.9/bin
KERNEL_TOOLCHAIN_PREFIX_arm := arm-linux-androidkernel-
# x86 toolchain
KERNEL_TOOLCHAIN_x86 := $(GCC_PREBUILTS)/x86/x86_64-linux-android-4.9/bin
KERNEL_TOOLCHAIN_PREFIX_x86 := x86_64-linux-android-
lineage: Move some kernel definitions to BoardConfigKernel Kernel source settings should always come at BoardConfig population time so things that use the variable later don't end up pointing to an empty or wrong variable. The following is also squashed in: Author: Christopher N. Hesse <raymanfx@gmail.com> Date: Fri Aug 10 00:23:54 2018 +0200 tasks: kernel: Honor prebuilt kernel flag For devices that want to use a prebuilt kernel, TARGET_KERNEL_SOURCE would still be set to TARGET_AUTO_KDIR, meaning the build system would still try to build the kernel if TARGET_AUTO_KDIR was present. Setting TARGET_PREBUILT_KERNEL indicates this is not wanted, so don't attempt to do it. Change-Id: Ic79b3ac1b9c946fd258ada43dce2b08bb74ea0d9 Change-Id: If046b86ff0d18c76898e90295be873a8379f678a
2018-09-21 00:19:57 +02:00
TARGET_KERNEL_CROSS_COMPILE_PREFIX := $(strip $(TARGET_KERNEL_CROSS_COMPILE_PREFIX))
ifneq ($(TARGET_KERNEL_CROSS_COMPILE_PREFIX),)
KERNEL_TOOLCHAIN_PREFIX ?= $(TARGET_KERNEL_CROSS_COMPILE_PREFIX)
kernel: Set kernel toolchain roots for aarch64, arm, and x86 The GCC toolchains are no longer added to the path by default, so we need to hardcode the full paths for these. Also set variables for every arch, and then set the toolchain to the arch specific var. This is so we can set the ARM32 cross compile flag for vDSO32 enabled kernels. Change-Id: I7e099a26a17f4a3cc9be6232a26c671e8fcfbdef
2019-09-06 23:26:34 +02:00
else
KERNEL_TOOLCHAIN ?= $(KERNEL_TOOLCHAIN_$(KERNEL_ARCH))
KERNEL_TOOLCHAIN_PREFIX ?= $(KERNEL_TOOLCHAIN_PREFIX_$(KERNEL_ARCH))
lineage: Move some kernel definitions to BoardConfigKernel Kernel source settings should always come at BoardConfig population time so things that use the variable later don't end up pointing to an empty or wrong variable. The following is also squashed in: Author: Christopher N. Hesse <raymanfx@gmail.com> Date: Fri Aug 10 00:23:54 2018 +0200 tasks: kernel: Honor prebuilt kernel flag For devices that want to use a prebuilt kernel, TARGET_KERNEL_SOURCE would still be set to TARGET_AUTO_KDIR, meaning the build system would still try to build the kernel if TARGET_AUTO_KDIR was present. Setting TARGET_PREBUILT_KERNEL indicates this is not wanted, so don't attempt to do it. Change-Id: Ic79b3ac1b9c946fd258ada43dce2b08bb74ea0d9 Change-Id: If046b86ff0d18c76898e90295be873a8379f678a
2018-09-21 00:19:57 +02:00
endif
ifeq ($(KERNEL_TOOLCHAIN),)
KERNEL_TOOLCHAIN_PATH := $(KERNEL_TOOLCHAIN_PREFIX)
kernel: Set kernel toolchain roots for aarch64, arm, and x86 The GCC toolchains are no longer added to the path by default, so we need to hardcode the full paths for these. Also set variables for every arch, and then set the toolchain to the arch specific var. This is so we can set the ARM32 cross compile flag for vDSO32 enabled kernels. Change-Id: I7e099a26a17f4a3cc9be6232a26c671e8fcfbdef
2019-09-06 23:26:34 +02:00
else
lineage: Move some kernel definitions to BoardConfigKernel Kernel source settings should always come at BoardConfig population time so things that use the variable later don't end up pointing to an empty or wrong variable. The following is also squashed in: Author: Christopher N. Hesse <raymanfx@gmail.com> Date: Fri Aug 10 00:23:54 2018 +0200 tasks: kernel: Honor prebuilt kernel flag For devices that want to use a prebuilt kernel, TARGET_KERNEL_SOURCE would still be set to TARGET_AUTO_KDIR, meaning the build system would still try to build the kernel if TARGET_AUTO_KDIR was present. Setting TARGET_PREBUILT_KERNEL indicates this is not wanted, so don't attempt to do it. Change-Id: Ic79b3ac1b9c946fd258ada43dce2b08bb74ea0d9 Change-Id: If046b86ff0d18c76898e90295be873a8379f678a
2018-09-21 00:19:57 +02:00
KERNEL_TOOLCHAIN_PATH := $(KERNEL_TOOLCHAIN)/$(KERNEL_TOOLCHAIN_PREFIX)
endif
kernel: Add GCC toolchains to the path Tools like `as` only exist in the GCC toolchain, so we need that Change-Id: I025d0d9bdf6eda94a538d2d6ddafbecc8830f471
2019-09-10 17:38:34 +02:00
# We need to add GCC toolchain to the path no matter what
# for tools like `as`
Revert "Revert "kernel: fix KERNEL_TOOLCHAIN_PATH_gcc and usage"" The fix was correct... This reverts commit 168fd231b65f3bd575529984f552354f4c5e3e8b. Change-Id: If550fd44f32b801553b8ac23cb2a91d3f29df557
2021-12-11 01:49:53 +01:00
KERNEL_TOOLCHAIN_PATH_gcc := $(KERNEL_TOOLCHAIN_$(KERNEL_ARCH))
kernel: Add GCC toolchains to the path Tools like `as` only exist in the GCC toolchain, so we need that Change-Id: I025d0d9bdf6eda94a538d2d6ddafbecc8830f471
2019-09-10 17:38:34 +02:00
lineage: Move some kernel definitions to BoardConfigKernel Kernel source settings should always come at BoardConfig population time so things that use the variable later don't end up pointing to an empty or wrong variable. The following is also squashed in: Author: Christopher N. Hesse <raymanfx@gmail.com> Date: Fri Aug 10 00:23:54 2018 +0200 tasks: kernel: Honor prebuilt kernel flag For devices that want to use a prebuilt kernel, TARGET_KERNEL_SOURCE would still be set to TARGET_AUTO_KDIR, meaning the build system would still try to build the kernel if TARGET_AUTO_KDIR was present. Setting TARGET_PREBUILT_KERNEL indicates this is not wanted, so don't attempt to do it. Change-Id: Ic79b3ac1b9c946fd258ada43dce2b08bb74ea0d9 Change-Id: If046b86ff0d18c76898e90295be873a8379f678a
2018-09-21 00:19:57 +02:00
ifneq ($(USE_CCACHE),)
kernel: Use full user defined path to ccache The built ccache command is now deprecated and spits out errors. ccache is also no longer used for the full build unless CCACHE_EXEC is defined. Move the kernel to the same logic in order to actually use ccache and silence the warnings. Change-Id: Iccedd9d5868d31060677667cc18810aae0149a26
2019-09-06 06:26:19 +02:00
ifneq ($(CCACHE_EXEC),)
# Android 10+ deprecates use of a build ccache. Only system installed ones are now allowed
CCACHE_BIN := $(CCACHE_EXEC)
lineage: Move some kernel definitions to BoardConfigKernel Kernel source settings should always come at BoardConfig population time so things that use the variable later don't end up pointing to an empty or wrong variable. The following is also squashed in: Author: Christopher N. Hesse <raymanfx@gmail.com> Date: Fri Aug 10 00:23:54 2018 +0200 tasks: kernel: Honor prebuilt kernel flag For devices that want to use a prebuilt kernel, TARGET_KERNEL_SOURCE would still be set to TARGET_AUTO_KDIR, meaning the build system would still try to build the kernel if TARGET_AUTO_KDIR was present. Setting TARGET_PREBUILT_KERNEL indicates this is not wanted, so don't attempt to do it. Change-Id: Ic79b3ac1b9c946fd258ada43dce2b08bb74ea0d9 Change-Id: If046b86ff0d18c76898e90295be873a8379f678a
2018-09-21 00:19:57 +02:00
endif
endif
lineage: config: Make LLVM kernel compile the default * GCC was deprecated awhile ago, the large majority of devices should now be using this. Clang should be opt out as opposed to opt in. Change-Id: Ie388aff8eca189663f2f615f7d059e47eaf2dce3
2022-03-07 19:29:34 +01:00
ifneq ($(TARGET_KERNEL_CLANG_COMPILE),false)
lineage: Move some kernel definitions to BoardConfigKernel Kernel source settings should always come at BoardConfig population time so things that use the variable later don't end up pointing to an empty or wrong variable. The following is also squashed in: Author: Christopher N. Hesse <raymanfx@gmail.com> Date: Fri Aug 10 00:23:54 2018 +0200 tasks: kernel: Honor prebuilt kernel flag For devices that want to use a prebuilt kernel, TARGET_KERNEL_SOURCE would still be set to TARGET_AUTO_KDIR, meaning the build system would still try to build the kernel if TARGET_AUTO_KDIR was present. Setting TARGET_PREBUILT_KERNEL indicates this is not wanted, so don't attempt to do it. Change-Id: Ic79b3ac1b9c946fd258ada43dce2b08bb74ea0d9 Change-Id: If046b86ff0d18c76898e90295be873a8379f678a
2018-09-21 00:19:57 +02:00
KERNEL_CROSS_COMPILE := CROSS_COMPILE="$(KERNEL_TOOLCHAIN_PATH)"
else
KERNEL_CROSS_COMPILE := CROSS_COMPILE="$(CCACHE_BIN) $(KERNEL_TOOLCHAIN_PATH)"
endif
# Needed for CONFIG_COMPAT_VDSO, safe to set for all arm64 builds
ifeq ($(KERNEL_ARCH),arm64)
kernel: Set kernel toolchain roots for aarch64, arm, and x86 The GCC toolchains are no longer added to the path by default, so we need to hardcode the full paths for these. Also set variables for every arch, and then set the toolchain to the arch specific var. This is so we can set the ARM32 cross compile flag for vDSO32 enabled kernels. Change-Id: I7e099a26a17f4a3cc9be6232a26c671e8fcfbdef
2019-09-06 23:26:34 +02:00
KERNEL_CROSS_COMPILE += CROSS_COMPILE_ARM32="$(KERNEL_TOOLCHAIN_arm)/$(KERNEL_TOOLCHAIN_PREFIX_arm)"
kernel: Fix vdso32 building for 4.19+ kernels This flag has been renamed in 4.19 kernels https://android.googlesource.com/kernel/common/+/refs/heads/android-4.19-stable/arch/arm64/kernel/vdso32/Makefile#13 Change-Id: I92db29aa124da7c9fc63454d9443373bdc2e16e7
2021-08-04 05:31:47 +02:00
KERNEL_CROSS_COMPILE += CROSS_COMPILE_COMPAT="$(KERNEL_TOOLCHAIN_arm)/$(KERNEL_TOOLCHAIN_PREFIX_arm)"
lineage: Move some kernel definitions to BoardConfigKernel Kernel source settings should always come at BoardConfig population time so things that use the variable later don't end up pointing to an empty or wrong variable. The following is also squashed in: Author: Christopher N. Hesse <raymanfx@gmail.com> Date: Fri Aug 10 00:23:54 2018 +0200 tasks: kernel: Honor prebuilt kernel flag For devices that want to use a prebuilt kernel, TARGET_KERNEL_SOURCE would still be set to TARGET_AUTO_KDIR, meaning the build system would still try to build the kernel if TARGET_AUTO_KDIR was present. Setting TARGET_PREBUILT_KERNEL indicates this is not wanted, so don't attempt to do it. Change-Id: Ic79b3ac1b9c946fd258ada43dce2b08bb74ea0d9 Change-Id: If046b86ff0d18c76898e90295be873a8379f678a
2018-09-21 00:19:57 +02:00
endif
# Clear this first to prevent accidental poisoning from env
KERNEL_MAKE_FLAGS :=
kernel: Add more threads to kernel build process Change-Id: I9c90de7820308542c7bb15605df519976dd04e0b
2019-02-09 23:59:56 +01:00
# Add back threads, ninja cuts this to $(nproc)/2
kernel: Use nproc from prebuilts Change-Id: I1d7a33dac57cbba9ce1a92f81d74709146e92968
2020-09-16 04:40:57 +02:00
KERNEL_MAKE_FLAGS += -j$(shell prebuilts/tools-lineage/$(HOST_PREBUILT_TAG)/bin/nproc --all)
kernel: Add more threads to kernel build process Change-Id: I9c90de7820308542c7bb15605df519976dd04e0b
2019-02-09 23:59:56 +01:00
lineage: config: Don't pass CFLAGS_MODULE="-fno-pic" if using LLVM * Seemingly not an issue for kernels compiled with LLVM, tested with kernel versions 4.4 -> 5.4. Change-Id: I00adee2e10e99a540099b5e1a6a1ab9be0b99050
2022-06-16 08:58:31 +02:00
ifeq ($(TARGET_KERNEL_CLANG_COMPILE),false)
ifeq ($(KERNEL_ARCH),arm)
# Avoid "Unknown symbol _GLOBAL_OFFSET_TABLE_" errors
KERNEL_MAKE_FLAGS += CFLAGS_MODULE="-fno-pic"
endif
ifeq ($(KERNEL_ARCH),arm64)
# Avoid "unsupported RELA relocation: 311" errors (R_AARCH64_ADR_GOT_PAGE)
KERNEL_MAKE_FLAGS += CFLAGS_MODULE="-fno-pic"
endif
lineage: Move some kernel definitions to BoardConfigKernel Kernel source settings should always come at BoardConfig population time so things that use the variable later don't end up pointing to an empty or wrong variable. The following is also squashed in: Author: Christopher N. Hesse <raymanfx@gmail.com> Date: Fri Aug 10 00:23:54 2018 +0200 tasks: kernel: Honor prebuilt kernel flag For devices that want to use a prebuilt kernel, TARGET_KERNEL_SOURCE would still be set to TARGET_AUTO_KDIR, meaning the build system would still try to build the kernel if TARGET_AUTO_KDIR was present. Setting TARGET_PREBUILT_KERNEL indicates this is not wanted, so don't attempt to do it. Change-Id: Ic79b3ac1b9c946fd258ada43dce2b08bb74ea0d9 Change-Id: If046b86ff0d18c76898e90295be873a8379f678a
2018-09-21 00:19:57 +02:00
endif
ifeq ($(HOST_OS),darwin)
kernel: Use Clang as HOST_{CC,CXX} GCC was deprecated upstream, so switch to Clang. Change-Id: I8a6c9d6b763db0055189d83f9037ccb0c50a23ea
2020-09-22 23:11:21 +02:00
KERNEL_MAKE_FLAGS += HOSTCFLAGS="-I$(BUILD_TOP)/external/elfutils/libelf -I/usr/local/opt/openssl/include -fuse-ld=lld" HOSTLDFLAGS="-L/usr/local/opt/openssl/lib -fuse-ld=lld"
kernel: Link against prebuilt openssl Using preinstalled system headers and libraries is no longer allowed. So we're gonna make our own prebuilts/openssl so we can build kernels. Change-Id: Ic5bc3b14c37b3bca352932c6f19a592377dbaf27
2019-09-06 06:29:27 +02:00
else
kernel: Use Clang as HOST_{CC,CXX} GCC was deprecated upstream, so switch to Clang. Change-Id: I8a6c9d6b763db0055189d83f9037ccb0c50a23ea
2020-09-22 23:11:21 +02:00
KERNEL_MAKE_FLAGS += CPATH="/usr/include:/usr/include/x86_64-linux-gnu" HOSTCFLAGS="-fuse-ld=lld" HOSTLDFLAGS="-L/usr/lib/x86_64-linux-gnu -L/usr/lib64 -fuse-ld=lld"
lineage: Move some kernel definitions to BoardConfigKernel Kernel source settings should always come at BoardConfig population time so things that use the variable later don't end up pointing to an empty or wrong variable. The following is also squashed in: Author: Christopher N. Hesse <raymanfx@gmail.com> Date: Fri Aug 10 00:23:54 2018 +0200 tasks: kernel: Honor prebuilt kernel flag For devices that want to use a prebuilt kernel, TARGET_KERNEL_SOURCE would still be set to TARGET_AUTO_KDIR, meaning the build system would still try to build the kernel if TARGET_AUTO_KDIR was present. Setting TARGET_PREBUILT_KERNEL indicates this is not wanted, so don't attempt to do it. Change-Id: Ic79b3ac1b9c946fd258ada43dce2b08bb74ea0d9 Change-Id: If046b86ff0d18c76898e90295be873a8379f678a
2018-09-21 00:19:57 +02:00
endif
kernel: Add OpenSSL libs to LD_LIBRARY_PATH Change-Id: If266f5f7bf0f2853ea54601023a894935d350754
2019-09-27 15:46:05 +02:00
kernel: Switch back to host openssl entirely * OpenSSL cannot be statically linked because of getaddrinfo and gethostbyname calls. * Also according to soong it's whitelisted: https://github.com/LineageOS/android_build_soong/blob/33f95299622a2c6c332cd428a4f324771f5b9575/ui/build/paths/config.go#L98 Change-Id: I1718bd98e7ac30d31de38c2cd3bc3e51b7100ce4
2019-09-30 17:55:58 +02:00
TOOLS_PATH_OVERRIDE := \
lineage: Use $(HOST_PREBUILT_TAG) where possible Change-Id: If211d23ce72b3404368cd723cbb9ea801e61802c
2020-09-24 12:51:33 +02:00
LD_LIBRARY_PATH=$(BUILD_TOP)/prebuilts/tools-lineage/$(HOST_PREBUILT_TAG)/lib:$$LD_LIBRARY_PATH \
lineage: Move perl base modules to common prebuilts dir Change-Id: I88df0825c26aaebfa9329cf15eb93d8e2bf728e1
2019-09-17 20:17:10 +02:00
PERL5LIB=$(BUILD_TOP)/prebuilts/tools-lineage/common/perl-base
kernel: Use prebuilt binaries perl, lz4c, and a bunch of other binaries are not allowed anymore. So we need to provide our own. Change-Id: Idbc88b76247b3dda7c5d52e5eed2d548c33f6f2d
2019-09-06 19:44:50 +02:00
kernel: Add 32-bit GCC to PATH for vdso32 Change-Id: Ifff495069ab33d9b1346971a21f380f0c23ebf48
2021-10-17 15:21:24 +02:00
ifeq ($(KERNEL_ARCH),arm64)
# Add 32-bit GCC to PATH so that arm-linux-androidkernel-as is available for CONFIG_COMPAT_VDSO
TOOLS_PATH_OVERRIDE += PATH=$(BUILD_TOP)/prebuilts/tools-lineage/$(HOST_PREBUILT_TAG)/bin:$(KERNEL_TOOLCHAIN_arm):$$PATH
else
TOOLS_PATH_OVERRIDE += PATH=$(BUILD_TOP)/prebuilts/tools-lineage/$(HOST_PREBUILT_TAG)/bin:$$PATH
endif
lineage: Rework DTBO image generation Currently we handle the DTBO images from start to finish, including AVB footers, and just drop them in $(PRODUCT_OUT)/dtbo.img when done. While this works for the most part, we are limited in what we can do with the DTBO images. For example non-A/B device recovery images must have a copy of the DTBO image appended to recovery (see AOSP docs: https://source.android.com/devices/bootloader/recovery-image ). This means that we need to pass the pre-AVB dtbo image into BOARD_PREBUILT_DTBOIMAGE in order to let the AOSP build system handle it. This commit reworks the way the DTBO images are built, placing them at $(PRODUCT_OUT)/dtbo-pre.img instead and setting BOARD_PREBUILT_DTBOIMAGE to that path so the AOSP build system can pick the images up and sign them and append to recovery (for applicable devices). Change-Id: I8819d7cd92ba298de67dbc7f6b321917ba8524f1
2019-05-16 23:01:19 +02:00
# Set DTBO image locations so the build system knows to build them
kernel: Rework how DTB/DTBO are built * Remove the separate dtbo.mk task and merge it in kernel.mk * Merge in-kernel and separated DTBO image generation Change-Id: I2cae84095cbd3d68abbe1899a9cae34c8a1e5fc9
2020-08-02 19:08:31 +02:00
ifeq (true,$(filter true, $(TARGET_NEEDS_DTBOIMAGE) $(BOARD_KERNEL_SEPARATED_DTBO)))
kernel: Allow setting dtbo target path prefix gs101 uses DTBO_OBJ/arch/arm64/boot/dts/google/dtbo.img vs DTBO_OBJ/arch/arm/boot/dtbo.img on previous devices. Change-Id: I945d31cb093fae97385cf84c273088ee7a4edf0b
2022-08-10 05:44:40 +02:00
TARGET_KERNEL_DTBO_PREFIX ?=
kernel: Allow overriding dtbo target name gs101 kernel uses google/dtbo.img target for dtbo.img Change-Id: Ib03f35c0035f56d303771de9399bcce3d02c0775
2022-08-10 04:18:59 +02:00
TARGET_KERNEL_DTBO ?= dtbo.img
kernel: Allow setting dtbo target path prefix gs101 uses DTBO_OBJ/arch/arm64/boot/dts/google/dtbo.img vs DTBO_OBJ/arch/arm/boot/dtbo.img on previous devices. Change-Id: I945d31cb093fae97385cf84c273088ee7a4edf0b
2022-08-10 05:44:40 +02:00
BOARD_PREBUILT_DTBOIMAGE ?= $(TARGET_OUT_INTERMEDIATES)/DTBO_OBJ/arch/$(KERNEL_ARCH)/boot/$(TARGET_KERNEL_DTBO_PREFIX)$(TARGET_KERNEL_DTBO)
lineage: Rework DTBO image generation Currently we handle the DTBO images from start to finish, including AVB footers, and just drop them in $(PRODUCT_OUT)/dtbo.img when done. While this works for the most part, we are limited in what we can do with the DTBO images. For example non-A/B device recovery images must have a copy of the DTBO image appended to recovery (see AOSP docs: https://source.android.com/devices/bootloader/recovery-image ). This means that we need to pass the pre-AVB dtbo image into BOARD_PREBUILT_DTBOIMAGE in order to let the AOSP build system handle it. This commit reworks the way the DTBO images are built, placing them at $(PRODUCT_OUT)/dtbo-pre.img instead and setting BOARD_PREBUILT_DTBOIMAGE to that path so the AOSP build system can pick the images up and sign them and append to recovery (for applicable devices). Change-Id: I8819d7cd92ba298de67dbc7f6b321917ba8524f1
2019-05-16 23:01:19 +02:00
endif
kernel: Use full path to the make command make is now a dissallowed command so just run the full command Change-Id: I9390dc5a8bcd17f316354b88bdbc65ac8663b369
2019-09-06 06:21:13 +02:00
# Set use the full path to the make command
lineage: Use $(HOST_PREBUILT_TAG) where possible Change-Id: If211d23ce72b3404368cd723cbb9ea801e61802c
2020-09-24 12:51:33 +02:00
KERNEL_MAKE_CMD := $(BUILD_TOP)/prebuilts/build-tools/$(HOST_PREBUILT_TAG)/bin/make
kernel: Use full path to the gcc/g++ commands gcc and g++ are now dissallowed commands so just run the full commands Change-Id: I2ba5675a3f5410f51fc37b723714b35f1e4628c8
2019-09-06 06:24:07 +02:00
kernel: Use Clang as HOST_{CC,CXX} GCC was deprecated upstream, so switch to Clang. Change-Id: I8a6c9d6b763db0055189d83f9037ccb0c50a23ea
2020-09-22 23:11:21 +02:00
# Set the full path to the clang command
KERNEL_MAKE_FLAGS += HOSTCC=$(CLANG_PREBUILTS)/bin/clang
KERNEL_MAKE_FLAGS += HOSTCXX=$(CLANG_PREBUILTS)/bin/clang++
kernel: Use absolute path for kernel O= argument The kernel make command is executed in the build root. Without absolute out paths, kernel out start with "out/" meaning it would be created in the kernel source. Add BUILD_ROOT to the argument to ensure it's always made in the actual out/ dir. Change-Id: I425134a893d4d5c9f31efccaf75e153b5462b76c
2019-09-08 02:01:13 +02:00
kernel: Use LLVM's substitutes for GNU binutils if possible Co-authored-by: LuK1337 <priv.luk@gmail.com> Change-Id: I06884fb774b6548aad68942f1ce659384521c62a
2022-06-15 17:46:57 +02:00
# Use LLVM's substitutes for GNU binutils if compatible kernel version.
ifneq ($(TARGET_KERNEL_CLANG_COMPILE), false)
config: Use LLVM binutils for 5.10 as well Change-Id: I14afa17d710778403cd7fecf842c952c569c0c35
2022-08-10 05:03:02 +02:00
ifneq (,$(filter 5.4 5.10, $(TARGET_KERNEL_VERSION)))
kernel: Use LLVM's substitutes for GNU binutils if possible Co-authored-by: LuK1337 <priv.luk@gmail.com> Change-Id: I06884fb774b6548aad68942f1ce659384521c62a
2022-06-15 17:46:57 +02:00
KERNEL_MAKE_FLAGS += LLVM=1 LLVM_IAS=1
endif
endif
kernel: Add bison and flex to build environment * Required since Linux 4.16 Change-Id: I107ea1b097d72a7b5251273c8c7e33ad6585b59c Signed-off-by: Jesse Chan <jc@lineageos.org>
2020-03-11 12:05:29 +01:00
# Since Linux 4.16, flex and bison are required
lineage: Use $(HOST_PREBUILT_TAG) where possible Change-Id: If211d23ce72b3404368cd723cbb9ea801e61802c
2020-09-24 12:51:33 +02:00
KERNEL_MAKE_FLAGS += LEX=$(BUILD_TOP)/prebuilts/build-tools/$(HOST_PREBUILT_TAG)/bin/flex
KERNEL_MAKE_FLAGS += YACC=$(BUILD_TOP)/prebuilts/build-tools/$(HOST_PREBUILT_TAG)/bin/bison
kernel: Add prebuilt m4 to build environment * android-11 removed M4 from the Allowed list, and provided a prebuilt binary in prebuilts/build-tools Change-Id: I83d033ecd35a0e2318210e47309fcc010843347f
2020-09-13 19:43:00 +02:00
KERNEL_MAKE_FLAGS += M4=$(BUILD_TOP)/prebuilts/build-tools/$(HOST_PREBUILT_TAG)/bin/m4
kernel: Add bison and flex to build environment * Required since Linux 4.16 Change-Id: I107ea1b097d72a7b5251273c8c7e33ad6585b59c Signed-off-by: Jesse Chan <jc@lineageos.org>
2020-03-11 12:05:29 +01:00
TOOLS_PATH_OVERRIDE += BISON_PKGDATADIR=$(BUILD_TOP)/prebuilts/build-tools/common/bison
kernel: Use absolute path for kernel O= argument The kernel make command is executed in the build root. Without absolute out paths, kernel out start with "out/" meaning it would be created in the kernel source. Add BUILD_ROOT to the argument to ensure it's always made in the actual out/ dir. Change-Id: I425134a893d4d5c9f31efccaf75e153b5462b76c
2019-09-08 02:01:13 +02:00
# Set the out dir for the kernel's O= arg
# This needs to be an absolute path, so only set this if the standard out dir isn't used
OUT_DIR_PREFIX := $(shell echo $(OUT_DIR) | sed -e 's|/target/.*$$||g')
KERNEL_BUILD_OUT_PREFIX :=
ifeq ($(OUT_DIR_PREFIX),out)
KERNEL_BUILD_OUT_PREFIX := $(BUILD_TOP)/
endif
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