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README_Kernel.txt
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README_Kernel.txt
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1. How to Build
- get Toolchain
From android git serveru, codesourcery and etc ..
- gcc/linux-x86/aarch64/aarch64-linux-android-4.9/bin/aarch64-linux-android-
From OSRC (http://opensource.samsung.com/)
- llvm-arm-toolchain-ship/6.0/bin/clang
- llvm-arm-toolchain-ship/6.0-cfp/bin/clang
- make output folder
EX) OUTPUT_DIR=out
$ mkdir out
- edit Makefile
edit "CROSS_COMPILE" to right toolchain path(You downloaded).
Ex) CROSS_COMPILE=<android platform directory you download>/android/prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9/bin/aarch64-linux-android-
Ex) CROSS_COMPILE=/usr/local/toolchain/gcc/linux-x86/aarch64/aarch64-linux-android-4.9/bin/aarch64-linux-android- // check the location of toolchain
edit "REAL_CC" to right toolchain path(You downloaded).
Ex) REAL_CC=<android platform directory you download>/android/vendor/qcom/proprietary/llvm-arm-toolchain-ship/6.0/bin/clang
edit "CLANG_TRIPLE" to right toolchain path(You downloaded).
Ex) CLANG_TRIPLE=aarch64-linux-gnu-
edit "KERNEL_MAKE_ENV" to kernel source directory.
Ex) KERNEL_MAKE_ENV="DTC_EXT=$(pwd)/tools/dtc CONFIG_BUILD_ARM64_DT_OVERLAY=y"
- to Build
$ export ARCH=arm64
$ make -C $(pwd) O=$(pwd)/out DTC_EXT=$(pwd)/tools/dtc CONFIG_BUILD_ARM64_DT_OVERLAY=y CLANG_TRIPLE=aarch64-linux-gnu- beyondxq_usa_spr_defconfig
$ make -C $(pwd) O=$(pwd)/out DTC_EXT=$(pwd)/tools/dtc CONFIG_BUILD_ARM64_DT_OVERLAY=y CLANG_TRIPLE=aarch64-linux-gnu-
2. Output files
- Kernel : arch/arm64/boot/Image
- module : drivers/*/*.ko
3. How to Clean
Change to OUTPUT_DIR folder
EX) /home/dpi/qb5_8814/workspace/P4_1716/android/out/target/product/beyondxq/out
$ make clean
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