[1].https://www.geeksforgeeks.org/memory-layout-of-c-program/ [2].https://www.geeksforgeeks.org/common-memory-pointer-related-bug-in-c-programs/ [3].https://www.tutorialspoint.com/compiler_design/index.htm
In practical words, when we run any C-program, its executable image is loaded into RAM of computer in an organized manner. This memory layout is organized in following fashion :- … HackerEarth is a global hub of 5M+ developers. We help companies accura
1/*hello-mac.c*/23#include <stdio.h>4#include <stdlib.h>56intg_init_2[2] = {1,2};/*.data*/7constintgc_int_3[3] = {1,2,3};/*.rodata*/8intg_initWithZero_4[4] = {0};/*.bss*/9intg_unInit_5[5];/*.bss*/1011externintmac(inta,intb,intc);1213intmain(void)14{1...
Initialized Data Segment 通常被称作数据段,这里存放着在源代码中已经被初始化的全局变量和静态变量。 需要注意的是,数据段并不一定是 read-only 的,因为这里存放的变量,它们的值在程序运行期间是可以修改的。 例如: char s[] = “hello world”; int debug = 1; int main (void) { return 0; } 其中的...
当然,这么一大块内存空间为了能够被更好地管理,我们通常要对内存进行布局,也就是划分功能块,我们称之为内存布局(memory layout)我们这里以c语言为例。通常我们的划分是连续的,如Fig 1所示,通常我们把连续的虚拟内存空间,从低地址位到高地址位,划分为五大段(segment): ...
struct memory layout Processor doesn't read 1 byte at a time from memory. It read 1 word at a time. (1 CPU cycle) If we have a 64 bit processor then it means it can access 8 bytes at a time which means word size is 8 bytes. ...
When troubleshooting Oracle process memory issues like ORA-4030’s or just excessive memory usage, you may want to get a detailed breakdown of PGA, UGA and Call heaps to see which component in there is the largest one. The same goes for shared pool memor
In last week of August, I observed that sys.dm_os_memory_clerks was showing duplicate entries for all the memory clerks. For example, if I run the following code in SQL Server 2008 RTM: select * from sys.dm_os_memory_clerks where type = 'MEMORYCLERK_SQLBUFFERPOOL' ...
2.Check the segment Documents/work/code/albert$ size hello text data bss dec hex filename 1256 560 8 1824 720 hello 1 2 3 4 参考资料: https://www.geeksforgeeks.org/memory-layout-of-c-program/
Memory Layout of C Programs A typical memory representation of C program consists of following sections. 1. Text segment 2. Initialized data segment 3. Uninitialized data segment 4. Stack 5. Heap 1. Text Segment: A text segment , also known as a code segment or simply as text, is one ...