When examining kernel code, there is a small trick regarding the C language that can be shared to facilitate code reading. 1. Directly Finding the Parent Pointer of a Structure We know that kernel header files define structures, and when defining structures, the first item of important structures is typically set as a sub-structure. As … Read more
Memory Management in C: Avoiding Memory Leaks and Dangling Pointers In C programming, memory management is a crucial topic. Since C provides direct manipulation of memory, programmers need to manually allocate and free memory. While this flexibility is powerful, it can also lead to common issues such as memory leaks and dangling pointers. This article … Read more
Source | AuthorizedTransferred from Xuanyuan’s Programming Universe (ID: xuanyuancoding)Author | Xuanyuan Wind One weekend, someone in my reverse learning group from scratch threw out a C language-related question: First, think about what this code will output after running? I encountered this question a few years ago in a Huawei interview. The code is very short; … Read more