奔跑 linux kernel GDB 使用

qemu

https://github.com/qemu/qemu

libcap-dev libattr1-dev

./configure --prefix=/home/shihyu/.mybin/qemu
make -j8
make install

~/.bashrc

export PATH="/home/shihyu/.mybin/qemu/bin:$PATH"

linaro 工具鏈

須下載 x86_64 才支援ubuntu 18,04 的 64位元, ubuntu 18.04不支援32位元

https://releases.linaro.org/components/toolchain/binaries/latest-5/aarch64-linux-gnu/

gcc-linaro-5.5.0-2017.10-x86_64_aarch64-linux-gnu

• build.env

TOOLCHAIN="gcc-linaro-5.5.0-2017.10-x86_64_aarch64-linux-gnu"
DIR=$(pushd $(dirname $BASH_SOURCE) > /dev/null; pwd; popd > /dev/null)
echo $DIR/${TOOLCHAIN}/bin
export PATH=${DIR}/${TOOLCHAIN}/bin:$PATH

編譯ARM64內核：

git clone https://github.com/figozhang/runninglinuxkernel_4.0
git checkout master

cd /home/shihyu/.mybin/linaro  && source build.env

export ARCH=arm64
export CROSS_COMPILE=aarch64-linux-gnu-
cd _install_arm64 && mkdir dev && cd dev
sudo mknod console c 5 1  (注意，不要遺漏該步驟)
cd runninglinuxkernel_4.0 
make defconfig    (在runninglinuxkernel_4.0目錄下輸入make命令)
make -j8

RUN + GDB

cd /home/shihyu/.mybin/linaro  && source build.env
./run.sh arm64 debug

cd /home/shihyu/.mybin/linaro  && source build.env
cgdb -d aarch64-linux-gnu-gdb vmlinux
target remote localhost:1234
b start_kernel
c