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I am trying to learn how to access the memory region of a process in order to print the start and end addresses of the code, its data regions, and the start and end of the heap. I believe that /proc/$pid/maps contains the process's start and end memory regions but I am wondering if there is another way. Perhaps ptrace() ?

user1321341
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/proc/$pid/maps or /proc/$pid/smaps is the best, but linux specific, way to get the information about process address space mapping.

You could use /proc/$pid/mem to access the memory regions (be careful to lseek to appropriate regions, or to use mmap to access it).

Basile Starynkevitch
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  • It probably only exists in kernel land. So, no. On linux the `/proc` filesystem is the preferred way to query process- (and some system-) related things. – Basile Starynkevitch Apr 10 '12 at 07:06