添加uClinux用户应用程序

时间：2007-06-04 12:07:28 来源：Linux联盟收集整理作者：

1. uClinux-dist/user/Makefile
dir_$(CONFIG_USER_HELLO_WORLD)       += hello

2. uClinux-dist/config/Configure.help
CONFIG_USER_HELLO_WORLD
A simple hello world program

3. uClinux-dist/config/config.in
找到下面两行
mainmenu_option next_comment
comment 'Miscellaneous Applications'
添加如下一行
bool 'hello'   CONFIG_USER_HELLO_WORLD

4.1. uClinux-dist/user/hello/Makefile
EXEC = hello
OBJS = hello.o

all: $(EXEC)

$(EXEC): $(OBJS)
   $(CC) $(LDFLAGS) -o $@ $(OBJS) $(LDLIBS)

romfs:
   $(ROMFSINST)    /bin/$(EXEC)

clean:
   -rm -f $(EXEC) *.elf *.gdb *.o

4.2. uClinux-dist/user/hello/hello.c
#include <stdio.h>

int main()
{
   printf("Hello, World\n");
   return 0;
}

5. 将用户程序编译进romfs
# cd ~/uClinux-dist
# make menuconfig
# make dep
# make romfs

参考资料:
uClinux-dist/Documentation/Adding-User-Apps-HOWTO

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