有大佬知道keiluVision4 编译汇编语言的时候出现以下代码是什么情况吗？，私聊有偿 Rebuild target 'Target 1' assembling start.s... linking... c:/program files (x86)/codesourcery/sourcery_codebench_lite_for_arm_gnu_linux/bin/../lib/gcc/arm-none-linux-gnueabi/4.6.1/../../../../arm-none-linux-gnueabi/bin/ld.exe: warning: cannot find entry symbol _start; defaulting to 00000000 "demo1.elf" - 0 Error(s), 0 Warning(s).
