When I use gdb to debug a program written in C, the command disassemble shows the codes and their addresses in the code memory segmentation. Is it possible to know those memory addresses at runtime? I am using Ubuntu OS. Thank you.
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When I use gdb to debug a program written in C, the command disassemble shows the codes and their addresses in the code memory segmentation. Is it possible to know those memory addresses at runtime? I am using Ubuntu OS. Thank you.
Not portably. You can take the address of a function, but it's not guaranteed that the address you get is actually the address of the code which implements the function (although in practice it usually is).Quote:
Originally Posted by wakandan
The question is, WHAT code? Are you interested in the address of a particular function, or the base address of the entire code segment? On most operating systems/binary formats, the code segment load address is fixed at link time and cannot change. So there is no need to determine it at runtime.