CODEWITHSUNDEEP
cgdb
username_4567
username_4567

Reputation: 4903

Get Address of Pointer in gdb

I am debugging a program which is seg faulting. I want to know which memory space (heap, stack, etc) the pointer belongs. Is there any way to determine this in gdb?

Upvotes: 1

Views: 637

Answers (1)

Employed Russian
Employed Russian

Reputation: 213526

which memory space (heap, stack, etc)

Note that on any modern multithreaded system, there are many stack regions (one or more for each thread), and often many heap regions as well (e.g. glibc malloc will use sbrk and mmap to obtain memory pages from the OS. These pages will form disjoint sets).

Is there any way to determine this in gdb

In general, no. On Linux, you can examine /proc/<pid>/maps and find a region that overlaps your pointer. GDB does not have any special commands to help you.

Upvotes: 5

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