Linking - Relocations

Sat 20 February 2021

In an effort to fill in some knowledge gaps regarding the linking process for the GNU compiler toolchain, I spent a few minutes exploring the ELF relocation section in a sample binary.

From the ELF man pages, relocation is "the process of connecting symbolic references with symbolic definitions. Relocatable files …

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Position-Independent Code (PIC) and ASLR

Sat 02 May 2020

Position-independent code (PIC) is code that can be loaded at any address in memory, whereas non-PIC code (absolute code) must be loaded at a specific location in memory to function properly. When a program includes a shared library, the code for that library must be loaded into the memory space …

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