-fomit-frame-pointer

参考：http://blog.csdn.net/byzs/article/details/2220461

为什么会由此记录？读了同事的邮件，看到关于此编译选项的问题，因此做下记录

如果发现 %ebp 的值显得不正常，那么可以反汇编，看看%ebp是否被用作帧指针。

-fomit-frame-pointer 编译选项

Don't keep the frame pointer in a register for functions that don't need one. This avoids the instructions to save, set up and restore frame pointers; it also makes an extra register available in many functions. It also makes debugging impossible on some machines.