如何调试使用Makefile编译的C代码

Question

I am asked to debug a C code containing a number of .c files and is complied using a Makefile on a Redhat Linux system. I want to debug that whole code. How to go about it? What changes do i need to make in the Makefile?

I am using gcc as the compiler.

Answer 1

If you're using GCC as compiler add to the CFLAGS variable the -g option. Then you'll be able to debug the resulting executable using the gdb command.

Answer 2

First you need to add the flag "-g" during compilation(make this change in the makefile.if already present then no need). this will open up the symbols for debugging the code.

use the debugging tools available like gdb, dbx, mdb which ever is available in your system.

many resources are available for debugging. one of them is here

Answer 3

在makefile中添加-g选项，以便将来调用gdb调试器。在gdb上进行调试的方式类似于：gdb yourprogram，然后您将被重定向到另一个接口。键入“ run yourarguments”以开始调试