bss controller

BSS segment: BSS segment (BSS segment) usually refers to an area of memory that is used to store uninitialized global variables in the program. BSS is the abbreviation for English block Started by symbol. BSS segments belong to static memory allocations.Data segment: Data se

In general, a program is essentially composed of BSS,data,text three-the concept of the current computer programming is a very important basic concept. It is also very important in the design of embedded system, which involves the allocation of memory size and the size of storage unit in the runtime of embedded system. In an architecture that uses segment memory management (such as Intel's 80x86 system), theBSS segment (Block Started by Symbol segment

A program contains data segments, code segments, and BSS segments. The BSS segment stores some uninitialized static and global variables. to properly use the memory, the BSS segment does not exist in the. binfile compiled at the end. In response to this question, I personally asked myself. The following answers are based on my understanding. I may describe some q

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location. This is a simple common sense, but sometimes very useful, if a global variable is destroyed, do not check the relevant variables before and after the access code to see if there is a possibility of cross-border access.In the elf-formatted executable, global memory consists of three types: BSS, data, andRodata。 The other executable file formats are similar. Understanding the characteristics of these three kinds of data, we can give full play

The role of BSS segments1. Space for variable storageInitialized Global variables: Data segmentsUninitialized global variable: BSS segmentLocal Variables: StacksDynamic Allocation variables: heap2. Why do you want to initialize the BSS segment?Uninitialized global variables are assigned when they are used, and are not used to forget assignments, resulting in the

A process (executing a program) consumes a certain amount of memory, either to store program code loaded from disk, or to store data from user input, and so on. However, the way the process manages these memory is different from memory usage, some of which are statically allocated and collected uniformly, while others are dynamically allocated and reclaimed as needed. For any ordinary process, it involves 5 different pieces of data.Five segments of a Linux processLet's briefly summarize what 5 d

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Http://blog.chinaunix.net/uid-27018250-id-3867588.htmlBSS uninitialized global DataData already initialized globalText code snippet, machine instructionRodata string ConstantsReference: "Programmer self-accomplishment"Code compiled machine instructions are often placed in the code snippet, the code snippet is named ". Text"; The initialized global variable and the initialized local static variable are often placed in the data segment, the data segment is named ". Data", the uninitialized global

Initialization of the 12.BSS segmentIn C code: there is the initialization of the global data segment, the local stack, the malloc portion of the heap, the uninitialized global BSS segment.??The information compiled from the above is known:Starting address for BSS segment: 0001052CEnd of BSS segment address: 00010534Th

BSS segment:BSS segments are generally a memory area used to store uninitialized global variables in the program. BSS is short for block started by symbol. BSS segments belong to static memory allocation. Data Segment:A data segment is a memory area used to store initialized global variables in a program. The data segment belongs to the static memory allocation.

1. Uninitialized global variable (. BSS segment)The BSS segment is used to store global variables that have not been initialized and have been initialized to 0 . The following example code:#include Compile and view:$ gcc-g mainbss.c-o mainbss$ ls-l mainbss-rwxrwxr-x. 1 hy hy 8330 Apr 19:33 mainbss$ objdump-h mainbss |grep BSSMAINBSS: file format elf32-i386. BSS