原文地址:http://blog.csdn.net/ruiyiin/article/details/8850467
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进入package目录,创建模块目录
cd mcp/branches/V1.1-beta1/mcp/package
mkdir example
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进入example目录,创建Makefile文件和代码路径
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cd example
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touch Makefile
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mkdir src
Makefile具体内容如下:
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# Kernel module example
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include $(TOPDIR)/rules.mk
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include $(INCLUDE_DIR)/kernel.mk
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PKG_NAME:=example
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PKG_RELEASE:=1
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include $(INCLUDE_DIR)/package.mk
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define KernelPackage/example
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SUBMENU:=Other modules
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DEPENDS:=@TARGET_octeon
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TITLE:=Support Module for example
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AUTOLOAD:=$(call AutoLoad,81,example)
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FILES:=$(PKG_BUILD_DIR)/example/example.$(LINUX_KMOD_SUFFIX)
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endef
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define Build/Prepare
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mkdir -p $(PKG_BUILD_DIR)
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$(CP) -R ./src/* $(PKG_BUILD_DIR)/
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endef
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define Build/Compile
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$(MAKE) -C "$(LINUX_DIR)" \
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CROSS_COMPILE="$(TARGET_CROSS)" \
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ARCH="$(LINUX_KARCH)" \
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SUBDIRS="$(PKG_BUILD_DIR)/example" \
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EXTRA_CFLAGS="-g $(BUILDFLAGS)" \
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modules
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endef
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$(eval $(call KernelPackage,example))
3.进入src目录,创建代码路径和相关源文件
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cd src
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mkdir example
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cd example
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touch example.c Kconfig Makefile
example.c具体内容如下:
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#include
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#include
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#include
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/* hello_init ---- 初始化函数,当模块装载时被调用,如果成功装载返回0 否则返回非0值 */
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static int __init hello_init(void)
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{
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printk("I bear a charmed life.\n");
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return 0;
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}
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/ * hello_exit ---- 退出函数,当模块卸载时被调用 */
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static void __exit hello_exit(void)
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{
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printk("Out, out, brief candle\n");
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}
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module_init(hello_init);
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module_exit(hello_exit);
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("zhangjiefeng");
Kconfig具体内容如下:
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config EXAMPLE
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tristate "Just a example"
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default n
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help
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This is a example, for debugging kernel model.
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If unsure, say N.
Makefile具体内如如下:
回到主路径 mcp/branches/V1.1-beta1/mcp/,编译选项配置保存并编译
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make menuconfig
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Kernel modules --->
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Other modules --->
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kmod-example
选项设置为M,保存退出
然后编译该模块:
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make package/example/compile
5.编译出的文件可以在主路径的以下路径找到
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./staging_dir/target-mips64_eglibc-2.10.1/root-octeon/lib/modules/2.6.30.9/
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./build_dir/linux-octeon/example/ipkg-octeon/kmod-example/lib/modules/2.6.30.9/
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./build_dir/linux-octeon/example/example/
文件名为:example.ko
注:我们使用./build_dir/linux-octeon/example/example/example.ko
二、用户态工具添加方法
1.进入package目录,创建工具目录
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cd mcp/branches/V1.1-beta1/mcp/package
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mkdir example1
2.进入example1目录,创建Makefile文件和代码路径
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cd example1
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touch Makefile
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mkdir src
该Makefile具体内容如下:
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#User mode tool example
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include $(TOPDIR)/rules.mk
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include $(INCLUDE_DIR)/kernel.mk
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PKG_NAME:=example1
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PKG_RELEASE:=1
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PKG_BUILD_DIR := $(KERNEL_BUILD_DIR)/$(PKG_NAME)
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include $(INCLUDE_DIR)/package.mk
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define Package/example1
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SECTION:=utils
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CATEGORY:=Base system
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TITLE:=Build for example1 commands
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endef
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define Package/example1/description
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This package contains an utility useful to use example1 commands.
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endef
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define Build/Prepare
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mkdir -p $(PKG_BUILD_DIR)
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$(CP) ./src/* $(PKG_BUILD_DIR)/
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endef
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target=$(firstword $(subst -, ,$(BOARD)))
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MAKE_FLAGS += TARGET="$(target)"
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TARGET_CFLAGS += -Dtarget_$(target)=1 -Wall
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define Build/example1/compile
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$(MAKE) -C "$(LINUX_DIR)" \
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CROSS_COMPILE="$(TARGET_CROSS)" \
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ARCH="$(LINUX_KARCH)" \
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SUBDIRS="$(PKG_BUILD_DIR)" \
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EXTRA_CFLAGS="$(BUILDFLAGS)"
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endef
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define Package/example1/install
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$(INSTALL_DIR) $(1)/sbin
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$(INSTALL_BIN) $(PKG_BUILD_DIR)/example1 $(1)/sbin/
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endef
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$(eval $(call BuildPackage,example1))
3.进入src目录,创建相关源文件
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cd src
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touch example1.c Makefile
example1.c 具体内容如下:
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#include
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int main(void)
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{
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printf("Hello, world\n");
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return 0;
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}
Makefile文件具体内容如下:
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.NOTPARALLEL:
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#OCTEON_ROOT=$(PWD)/src/
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CC=~/openwrt/main/staging_dir/toolchain-mips64_gcc-4.4.1_eglibc-2.10.1/usr/bin/mips64-openwrt-linux-gnu-gcc
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CFLAGS=-mips64r2 -mabi=64 -march=octeon -mtune=octeon
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LFLAGS=
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.PHONY: all
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all: example1
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example1:example1.c
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${CC} ${CFLAGS} ${LFLAGS} -W -g -Wall -Wno-unused-parameter -DUSE_RUNTIME_MODEL_CHECKS=1 \
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-o $@ example1.c
4.回到主路径 mcp/branches/V1.1-beta1/mcp/,编译选项配置保存并编译
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make menuconfig
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Base system --->
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example1
选项设置为M,保存退出
然后编译该模块:
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make package/example1/compile
5.编译出的文件可以在主路径的以下路径找到
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./staging_dir/target-mips64_eglibc-2.10.1/root-octeon/sbin/
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./build_dir/linux-octeon/example1/ipkg-octeon/example1/sbin/
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./build_dir/linux-octeon/example1/
文件名为:example1
注:我们使用./build_dir/linux-octeon/example1/example1
根据OpenWrt安装介绍,将内核模块和用户态工具在板子上运行,到这就简单了往下我就不贴了。
本文贴自:
转自:http://blog.chinaunix.net/uid-9217288-id-3060464.html
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