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Deepin Linux
Deepin Linux
Feb 27, 2025 · Fundamentals

Understanding malloc and free: Memory Allocation Mechanisms in C

This article explains how the C functions malloc and free allocate and release memory, covering stack vs heap, the brk and mmap system calls, fragmentation, header metadata, and why both allocation strategies are needed for efficient memory management.

C programmingMMAPMemory Allocation
0 likes · 17 min read
Understanding malloc and free: Memory Allocation Mechanisms in C
OPPO Kernel Craftsman
OPPO Kernel Craftsman
Jun 12, 2020 · Fundamentals

Linux Kernel Virtual Memory Management: Process Virtual Address Space and Allocation

The article explains Linux kernel virtual memory management on 64‑bit ARM64 Android systems, detailing user‑ and kernel‑space address layout, physical vs. linear addresses, allocation mechanisms such as brk and mmap, common allocators, key structures like mm_struct and vm_area_struct, and the functions that control mmap layout and unmapped‑area selection.

ARM64ASLRKernel Internals
0 likes · 20 min read
Linux Kernel Virtual Memory Management: Process Virtual Address Space and Allocation