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kernel: Slightly reorder config

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Prepare for 5.10 kernel build changes

Change-Id: I79ecf0655f9adc894091c4f26de337ebe03e3ca2
This commit is contained in:
Michael Bestas
2022-10-01 00:38:14 +03:00
parent 728eff7557
commit c80ca08861
1 changed files with 28 additions and 23 deletions
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51
config/BoardConfigKernel.mk
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@@ -69,6 +69,24 @@ KERNEL_PATCHLEVEL := $(shell grep -s "^PATCHLEVEL = " $(TARGET_KERNEL_SOURCE)/Ma
TARGET_KERNEL_VERSION ?= $(shell echo $(KERNEL_VERSION)"."$(KERNEL_PATCHLEVEL))
CLANG_PREBUILTS := $(BUILD_TOP)/prebuilts/clang/host/$(HOST_PREBUILT_TAG)/clang-r450784d
ifneq ($(USE_CCACHE),)
ifneq ($(CCACHE_EXEC),)
# Android 10+ deprecates use of a build ccache. Only system installed ones are now allowed
CCACHE_BIN := $(CCACHE_EXEC)
endif
endif
# Clear this first to prevent accidental poisoning from env
KERNEL_MAKE_FLAGS :=
# Add back threads, ninja cuts this to $(nproc)/2
KERNEL_MAKE_FLAGS += -j$(shell prebuilts/tools-lineage/$(HOST_PREBUILT_TAG)/bin/nproc --all)
TOOLS_PATH_OVERRIDE := \
LD_LIBRARY_PATH=$(BUILD_TOP)/prebuilts/tools-lineage/$(HOST_PREBUILT_TAG)/lib:$$LD_LIBRARY_PATH \
PERL5LIB=$(BUILD_TOP)/prebuilts/tools-lineage/common/perl-base
GCC_PREBUILTS := $(BUILD_TOP)/prebuilts/gcc/$(HOST_PREBUILT_TAG)
# arm64 toolchain
KERNEL_TOOLCHAIN_arm64 := $(GCC_PREBUILTS)/aarch64/aarch64-linux-android-4.9/bin
@@ -98,13 +116,6 @@ endif
# for tools like `as`
KERNEL_TOOLCHAIN_PATH_gcc := $(KERNEL_TOOLCHAIN_$(KERNEL_ARCH))
ifneq ($(USE_CCACHE),)
ifneq ($(CCACHE_EXEC),)
# Android 10+ deprecates use of a build ccache. Only system installed ones are now allowed
CCACHE_BIN := $(CCACHE_EXEC)
endif
endif
ifneq ($(TARGET_KERNEL_CLANG_COMPILE),false)
KERNEL_CROSS_COMPILE := CROSS_COMPILE="$(KERNEL_TOOLCHAIN_PATH)"
else
@@ -117,12 +128,6 @@ ifeq ($(KERNEL_ARCH),arm64)
KERNEL_CROSS_COMPILE += CROSS_COMPILE_COMPAT="$(KERNEL_TOOLCHAIN_arm)/$(KERNEL_TOOLCHAIN_PREFIX_arm)"
endif
# Clear this first to prevent accidental poisoning from env
KERNEL_MAKE_FLAGS :=
# Add back threads, ninja cuts this to $(nproc)/2
KERNEL_MAKE_FLAGS += -j$(shell prebuilts/tools-lineage/$(HOST_PREBUILT_TAG)/bin/nproc --all)
ifeq ($(TARGET_KERNEL_CLANG_COMPILE),false)
ifeq ($(KERNEL_ARCH),arm)
# Avoid "Unknown symbol _GLOBAL_OFFSET_TABLE_" errors
@@ -141,10 +146,6 @@ else
KERNEL_MAKE_FLAGS += CPATH="/usr/include:/usr/include/x86_64-linux-gnu" HOSTLDFLAGS="-L/usr/lib/x86_64-linux-gnu -L/usr/lib64 -fuse-ld=lld"
endif
TOOLS_PATH_OVERRIDE := \
LD_LIBRARY_PATH=$(BUILD_TOP)/prebuilts/tools-lineage/$(HOST_PREBUILT_TAG)/lib:$$LD_LIBRARY_PATH \
PERL5LIB=$(BUILD_TOP)/prebuilts/tools-lineage/common/perl-base
ifeq ($(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):$$PATH
@@ -152,6 +153,16 @@ else
TOOLS_PATH_OVERRIDE += PATH=$(BUILD_TOP)/prebuilts/tools-lineage/$(HOST_PREBUILT_TAG)/bin:$$PATH
endif
# Set the full path to the clang command and LLVM binutils
KERNEL_MAKE_FLAGS += HOSTCC=$(CLANG_PREBUILTS)/bin/clang
KERNEL_MAKE_FLAGS += HOSTCXX=$(CLANG_PREBUILTS)/bin/clang++
ifneq ($(TARGET_KERNEL_CLANG_COMPILE), false)
ifneq ($(TARGET_KERNEL_LLVM_BINUTILS), false)
KERNEL_MAKE_FLAGS += LD=$(CLANG_PREBUILTS)/bin/ld.lld
KERNEL_MAKE_FLAGS += AR=$(CLANG_PREBUILTS)/bin/llvm-ar
endif
endif
# Set DTBO image locations so the build system knows to build them
ifeq (true,$(filter true, $(TARGET_NEEDS_DTBOIMAGE) $(BOARD_KERNEL_SEPARATED_DTBO)))
TARGET_KERNEL_DTBO_PREFIX ?=
@@ -169,16 +180,10 @@ TARGET_KERNEL_EXT_MODULES ?=
# Set use the full path to the make command
KERNEL_MAKE_CMD := $(BUILD_TOP)/prebuilts/build-tools/$(HOST_PREBUILT_TAG)/bin/make
# Set the full path to the clang command
KERNEL_MAKE_FLAGS += HOSTCC=$(CLANG_PREBUILTS)/bin/clang
KERNEL_MAKE_FLAGS += HOSTCXX=$(CLANG_PREBUILTS)/bin/clang++
# Use LLVM's substitutes for GNU binutils
ifneq ($(TARGET_KERNEL_CLANG_COMPILE), false)
ifneq ($(TARGET_KERNEL_LLVM_BINUTILS), false)
KERNEL_MAKE_FLAGS += LLVM=1 LLVM_IAS=1
KERNEL_MAKE_FLAGS += LD=$(CLANG_PREBUILTS)/bin/ld.lld
KERNEL_MAKE_FLAGS += AR=$(CLANG_PREBUILTS)/bin/llvm-ar
endif
endif