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source build/envsetup.shlunch xx make showcommands bootimage >build.log //通过参数showcommands 将编译的命令显示出来
touch buld_kernel.sh //创建脚本复制第三步编译的build.log中 bin/bash -c 开始的每一段到buld_kernel.sh里在脚本之前加上 source 和 lunch 就可以了chmod +x buld_kernel.sh //增加可执行全限./build_kernel.sh //运行编译脚本，以后每次编译使用这个脚本就可以了
source build/envsetup.shlunch 19 /bin/bash -c "(if [ ! -z \"hq_sdm450_defconfig\" ]; then rm -f ../../out/target/product/hq_sdm450/obj/kernel/msm-4.9/.config; make -j2 -C kernel/msm-4.9 O=../../out/target/product/hq_sdm450/obj/kernel/msm-4.9 DTC_EXT=dtc CONFIG_BUILD_ARM64_DT_OVERLAY=y ARCH=arm64 CROSS_COMPILE=aarch64-linux-android- hq_sdm450_defconfig; make -j2 -C kernel/msm-4.9 O=../../out/target/product/hq_sdm450/obj/kernel/msm-4.9 DTC_EXT=dtc CONFIG_BUILD_ARM64_DT_OVERLAY=y ARCH=arm64 CROSS_COMPILE=aarch64-linux-android- headers_install; if [ -d \"out/target/product/hq_sdm450/obj/kernel/msm-4.9/usr/include/bringup_headers\" ]; then cp -Rf out/target/product/hq_sdm450/obj/kernel/msm-4.9/usr/include/bringup_headers/* out/target/product/hq_sdm450/obj/kernel/msm-4.9/usr/include/ ; fi ; fi ) && (if [ \"hq_sdm450_defconfig\" != \"hq_sdm450_defconfig\" ]; then echo \"Used a different defconfig for header generation\"; rm -f ../../out/target/product/hq_sdm450/obj/kernel/msm-4.9/.config; make -j2 -C kernel/msm-4.9 O=../../out/target/product/hq_sdm450/obj/kernel/msm-4.9 DTC_EXT=dtc CONFIG_BUILD_ARM64_DT_OVERLAY=y ARCH=arm64 CROSS_COMPILE=aarch64-linux-android- hq_sdm450_defconfig; fi ) && (if [ ! -z \"\" ]; then echo \"Overriding kernel config with ''\"; echo >> out/target/product/hq_sdm450/obj/kernel/msm-4.9/.config; make -j2 -C kernel/msm-4.9 O=../../out/target/product/hq_sdm450/obj/kernel/msm-4.9 DTC_EXT=dtc CONFIG_BUILD_ARM64_DT_OVERLAY=y ARCH=arm64 CROSS_COMPILE=aarch64-linux-android- oldconfig; fi )"/bin/bash -c "(rm -rf out/target/product/hq_sdm450/obj/KERNEL_OBJ ) && (ln -s kernel/msm-4.9 out/target/product/hq_sdm450/obj/KERNEL_OBJ )"/bin/bash -c "(rm -rf out/target/product/hq_sdm450/obj/kernel/msm-4.9/arch/arm64/boot/dts ) && (make -j2 -C kernel/msm-4.9 O=../../out/target/product/hq_sdm450/obj/kernel/msm-4.9 DTC_EXT=dtc CONFIG_BUILD_ARM64_DT_OVERLAY=y ARCH=arm64 CROSS_COMPILE=aarch64-linux-android- KCFLAGS=-mno-android ) && (make -j2 -C kernel/msm-4.9 O=../../out/target/product/hq_sdm450/obj/kernel/msm-4.9 DTC_EXT=dtc CONFIG_BUILD_ARM64_DT_OVERLAY=y ARCH=arm64 CROSS_COMPILE=aarch64-linux-android- KCFLAGS=-mno-android modules ) && (make -j2 -C kernel/msm-4.9 O=../../out/target/product/hq_sdm450/obj/kernel/msm-4.9 INSTALL_MOD_PATH=../../../dlkm INSTALL_MOD_STRIP=1 DTC_EXT=dtc CONFIG_BUILD_ARM64_DT_OVERLAY=y ARCH=arm64 CROSS_COMPILE=aarch64-linux-android- modules_install ) && (mdpath=\`find out/target/product/hq_sdm450/dlkm/lib/modules -type f -name modules.dep\`; if [ \"\$mdpath\" != \"\" ];then mpath=\`dirname \$mdpath\`; ko=\`find \$mpath/kernel -type f -name *.ko\`; for i in \$ko; do mv \$i out/target/product/hq_sdm450/dlkm/lib/modules/; done; fi ) && (mdpath=\`find out/target/product/hq_sdm450/dlkm/lib/modules -type f -name modules.dep\`; if [ \"\$mdpath\" != \"\" ];then mpath=\`dirname \$mdpath\`; rm -rf \$mpath; fi )"/bin/bash -c "(rm -f out/target/product/hq_sdm450/kernel ) && (cp \"out/target/product/hq_sdm450/obj/kernel/msm-4.9/arch/arm64/boot/Image.gz-dtb\" \"out/target/product/hq_sdm450/kernel\" )"/bin/bash -c "(out/host/linux-x86/bin/mkbootimg --kernel out/target/product/hq_sdm450/kernel --base 0x80000000 --pagesize 2048 --cmdline \"console=ttyMSM0,115200,n8 androidboot.console=ttyMSM0 androidboot.hardware=qcom msm_rtb.filter=0x237 ehci-hcd.park=3 lpm_levels.sleep_disabled=1 androidboot.bootdevice=7824900.sdhci earlycon=msm_serial_dm,0x78af000 firmware_class.path=/vendor/firmware_mnt/image androidboot.usbconfigfs=true loop.max_part=7 buildvariant=userdebug\" --os_version 9 --os_patch_level 2018-10-05 --header_version 1 --output out/target/product/hq_sdm450/boot.img ) && (size=\$(for i in out/target/product/hq_sdm450/boot.img; do stat --format \"%s\" \"\$i\" | tr -d '\\n'; echo +; done; echo 0); total=\$(( \$( echo \"\$size\" ) )); printname=\$(echo -n \"out/target/product/hq_sdm450/boot.img\" | tr \" \" +); maxsize=\$(( 0x04000000-69632)); if [ \"\$total\" -gt \"\$maxsize\" ]; then echo \"error: \$printname too large (\$total > \$maxsize)\"; false; elif [ \"\$total\" -gt \$((maxsize - 32768)) ]; then echo \"WARNING: \$printname approaching size limit (\$total now; limit \$maxsize)\"; fi ) && (out/host/linux-x86/bin/avbtool add_hash_footer --image out/target/product/hq_sdm450/boot.img --partition_size 0x04000000 --partition_name boot )"
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