yocto编译包含kernel-devsrc的sdk
宿淳
目录
增加kernel-devsrc
TOOLCHAIN_TARGET_TASK_append中增加kernel-devsrc，可以把内核模块开发所需的kerenl-devsrc编译进sdk。
--- a/src/poky/meta-qti-bsp/recipes-products/images/qcs40x/qcs40x-base-image.inc
+++ b/src/poky/meta-qti-bsp/recipes-products/images/qcs40x/qcs40x-base-image.inc
@@ -4,7 +4,7 @@ RDEPENDS += "${@bb.utils.contains('TARGET_ARCH', 'arm','lib64-edk2','edk2',d)}"
RDEPENDS += "${@bb.utils.contains('TARGET_ARCH', 'arm','lib64-abl-ubifs','abl-ubifs',d)}"
# Target SDK Packages
-TOOLCHAIN_TARGET_TASK_append_sa2150p += "glib-2.0-dev"
+TOOLCHAIN_TARGET_TASK_append_sa2150p += "glib-2.0-dev kernel-devsrc"
# Packages to be included in rootfs creation.
IMAGE_INSTALL += "packagegroup-core-boot"
编译sdk
编译sdk，这个过程很漫长，需要3个多小时。
cd src/poky
source meta-quectel-eap/scripts/ag215s/ag215s-oem-build.sh
bitbake -f machine-image -c populate_sdk编译驱动
使用编译出来的sdk编译驱动。
#!/bin/bash
KSRC=/opt/ag215s/oecore-x86_64/sysroots/aarch64-oe-linux/lib/modules/4.14.206/build
export PATH=${PATH}:/opt/ag215s/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/bin/aarch64-oe-linux
export CROSS_COMPILE=aarch64-oe-linux-
export ARCH=arm64
make modules M=`pwd` -C ${KSRC}找不到头文件
提示找不到asm/types.h文件。
make: Entering directory '/opt/ag215s/oecore-x86_64/sysroots/aarch64-oe-linux/lib/modules/4.14.206/build'
CC [M] /data/OSS/utils/modules/zdebug.o
In file included from ./include/linux/compiler.h:164,
from ./include/linux/init.h:5,
from /data/OSS/utils/modules/zdebug.c:11:
./include/uapi/linux/types.h:5:10: fatal error: asm/types.h: No such file or directory
#include <asm/types.h>
^~~~~~~~~~~~~
compilation terminated.
scripts/Makefile.build:367: recipe for target '/data/OSS/utils/modules/zdebug.o' failed
make[1]: *** [/data/OSS/utils/modules/zdebug.o] Error 1
Makefile:1741: recipe for target '_module_/data/OSS/utils/modules' failed
make: *** [_module_/data/OSS/utils/modules] Error 2
make: Leaving directory '/opt/ag215s/oecore-x86_64/sysroots/aarch64-oe-linux/lib/modules/4.14.206/build'修改kernel-devsrc.bb后重新编译sdk。
--- a/src/poky/meta/recipes-kernel/linux/kernel-devsrc.bb
+++ b/src/poky/meta/recipes-kernel/linux/kernel-devsrc.bb
@@ -93,6 +93,10 @@ do_install() {
# be dealt with.
# cp -a scripts $kerneldir/build
+ if [ -d arch/${ARCH}/include/generated ]; then
+ cp -a --parents arch/${ARCH}/include/generated $kerneldir/build/
+ fi
+
if [ -d arch/${ARCH}/scripts ]; then
cp -a arch/${ARCH}/scripts $kerneldir/build/arch/${ARCH}
fi
找不到fixdep
头文件找到了，又出找不到fixdep幺蛾子。
make: Entering directory '/opt/ag215s/oecore-x86_64/sysroots/aarch64-oe-linux/lib/modules/4.14.206/build'
CC [M] /data/OSS/utils/modules/zdebug.o
/bin/sh: scripts/basic/fixdep: No such file or directory
scripts/Makefile.build:367: recipe for target '/data/OSS/utils/modules/zdebug.o' failed
make[1]: *** [/data/OSS/utils/modules/zdebug.o] Error 1
Makefile:1740: recipe for target '_module_/data/OSS/utils/modules' failed
make: *** [_module_/data/OSS/utils/modules] Error 2
make: Leaving directory '/opt/ag215s/oecore-x86_64/sysroots/aarch64-oe-linux/lib/modules/4.14.206/build'找不到modpost
从yocto编译目录复制文件fixdep到oecore-x86_64/sysroots/aarch64-oe-linux/lib/modules/4.14.206/build/scripts/basic/fixdep，又提示找不到modpost文件。
make: Entering directory '/opt/ag215s/oecore-x86_64/sysroots/aarch64-oe-linux/lib/modules/4.14.206/build'
Building modules, stage 2.
MODPOST 1 modules
/bin/sh: scripts/mod/modpost: No such file or directory
scripts/Makefile.modpost:108: recipe for target '__modpost' failed
make[1]: *** [__modpost] Error 127
Makefile:1743: recipe for target 'modules' failed
make: *** [modules] Error 2
make: Leaving directory '/opt/ag215s/oecore-x86_64/sysroots/aarch64-oe-linux/lib/modules/4.14.206/build'继续复制modpost文件到oecore-x86_64/sysroots/aarch64-oe-linux/lib/modules/4.14.206/build/scripts/mod/modpost，再次编译，ko文件终于编译成功。
make: Entering directory '/opt/ag215s/oecore-x86_64/sysroots/aarch64-oe-linux/lib/modules/4.14.206/build'
CC [M] /data/OSS/utils/modules/zdebug.o
Building modules, stage 2.
MODPOST 1 modules
CC /data/OSS/utils/modules/zdebug.mod.o
LD [M] /data/OSS/utils/modules/zdebug.ko
make: Leaving directory '/opt/ag215s/oecore-x86_64/sysroots/aarch64-oe-linux/lib/modules/4.14.206/build'使用make scripts
缺少fixdep、modpost文件，可以通过进入用于驱动模块开发的内核源码目录，make scripts来解决。
#!/bin/bash
KSRC=/opt/ag215s/oecore-x86_64/sysroots/aarch64-oe-linux/lib/modules/4.14.206/build
export PATH=${PATH}:/opt/ag215s/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/bin/aarch64-oe-linux
export CROSS_COMPILE=aarch64-oe-linux-
export ARCH=arm64
if [ "$1" = "clean" ]; then
make clean -C ${KSRC}
make clean M=`pwd` -C ${KSRC}
else
make scripts -C ${KSRC}
make modules M=`pwd` -C ${KSRC}
fi
编译结果
HOSTCC scripts/basic/fixdep
HOSTCC scripts/basic/bin2c
HOSTCC scripts/dtc/dtc.o
HOSTCC scripts/dtc/flattree.o
HOSTCC scripts/dtc/fstree.o
HOSTCC scripts/dtc/data.o
HOSTCC scripts/dtc/livetree.o
HOSTCC scripts/dtc/treesource.o
HOSTCC scripts/dtc/srcpos.o
HOSTCC scripts/dtc/checks.o
HOSTCC scripts/dtc/util.o
HOSTCC scripts/dtc/dtc-lexer.lex.o
HOSTCC scripts/dtc/dtc-parser.tab.o
HOSTLD scripts/dtc/dtc
HOSTCC scripts/genksyms/genksyms.o
HOSTCC scripts/genksyms/parse.tab.o
HOSTCC scripts/genksyms/lex.lex.o
HOSTLD scripts/genksyms/genksyms
CC scripts/mod/empty.o
HOSTCC scripts/mod/mk_elfconfig
MKELF scripts/mod/elfconfig.h
HOSTCC scripts/mod/modpost.o
CC scripts/mod/devicetable-offsets.s
CHK scripts/mod/devicetable-offsets.h
HOSTCC scripts/mod/file2alias.o
HOSTCC scripts/mod/sumversion.o
HOSTLD scripts/mod/modpost
HOSTCC scripts/selinux/genheaders/genheaders
HOSTCC scripts/selinux/mdp/mdp
HOSTCC scripts/kallsyms
HOSTCC scripts/conmakehash
HOSTCC scripts/sortextable
HOSTCC scripts/asn1_compiler
HOSTCC scripts/sign-file
HOSTCC scripts/extract-cert
/data/OSS/utils/modules
make: Entering directory '/opt/ag215s/oecore-x86_64/sysroots/aarch64-oe-linux/lib/modules/4.14.206/build'
CC [M] /data/OSS/utils/modules/zdebug.o
Building modules, stage 2.
MODPOST 1 modules
CC /data/OSS/utils/modules/zdebug.mod.o
LD [M] /data/OSS/utils/modules/zdebug.ko
make: Leaving directory '/opt/ag215s/oecore-x86_64/sysroots/aarch64-oe-linux/lib/modules/4.14.206/build'经过无数次失败后，终于可以发布sdk用于开发驱动模块了。
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