best describes bss

BSS:(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 segment usually refers to an area of memory that is used to hold the

BSS segment: (BSS segment) refers to a memory area used to store uninitialized global variables in the program. BSS is an English Block Short for started by symbol. BSS segments belong to static memory allocation. Data Segment: a data segment is usually a memory area used to store initialized global variables in the

Executable programs include BSS segments, data segments, and code segments (also called text segments ). 1. bssbss (block started by symbol) is usually a memory area used to store uninitialized global variables and static variables in the program. Features: read/write, BSS segments are automatically cleared before the program is executed. Therefore, the uninitialized global variables are 0 before the progra

Start. S clear bss segment, start. sbss segment Start. S . Global _ start. global _ end. align 2. text_start: B reset ldr pc, _ undefined_instruction ldr pc, _ Your ldr pc, _ prefetch_abort ldr pc, _ data_abort ldr pc, _ not_used ldr pc, _ irq ldr pc, _ fiq_undefined_instruction :. word und_software_interrupt :. word svc_prefetch_abort :. word pre_abort_data_abort :. word data_abort_not_used :. word 0x12345678_irq :. word irq_fiq :. word fiqreset: mo

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

BSS segment in program, data segment, code snippet (. Text), heap (heap), stack (stack). BSS segment: Uninitialized and initialized to 0 global variables and static local variables (static) initialized to 0 in the program. Data segment: Non-zero initialized global variables and non-zero initialized static local variables (static) in the programCode Snippet: the place (. Text field) where the code is stored,

In memory management, memory is divided into: System reserve, code area, global variable area, heap, and stack.The global variable area can also be divided into: Data segment and BSS segment.The data segment is used to store initialized global variables, static variables, and literal constants.The BSS segment is used to store uninitialized global variables, static variables."Program Instance 1"#include usin

ProgramThe compiled target file contains at least three segments:. Text,. Data, And. BSS. The structure of the three segments is as follows: Where. Text isCodeSegment, which is read-only .. The BSS segment contains uninitialized global and static variables in the program. The data segment consists of three parts: heap, stack, and static data zone. When the program dynamically allocates space during

A program is generally divided into three sections: Text, data, and BSS. Text: it refers to the code of the program. It is determined during compilation, read-only, and data segment: data that can be determined at the compilation stage (rather than the runtime). readable and writable data is usually referred to as the static storage area. The global and static variables with initial values are stored in this area, constants are also stored in the

Before our startup file clears BSS and copies are implemented by the way of assembly, however, we are able to use the C language without using the assembler:First look at the connection script: sections{. = 0x30000000 ; __code_start =.; . = ALIGN (4 * (. Text)}. = ALIGN (4 * (. Rodata)}. = ALIGN (4 * = ALIGN (4 =.; . BSS: { * (. BSS)

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Describes the attributes declaration and function in Swift, and describes the attributes declaration in swift. I. Introduction The attribute associates the value with the class, struct, and enumeration. Swift has two types of attributes: storage attributes and computing attributes. Storage attributes are used to store a value. They can only be used for classes and struct. Computing attributes are used to ca

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[C ++] Chapter 1 describes how to use C ++ to compile console applications in VS2015 and Chapter 1st describes vs2015. Category: C ++, VS2015 Date created: 1. Introduction Many people are still learning C ++ with VC 6.0 development tools. In fact, VC 6.0 development tools have been eliminated for a long time. This section only describes the two development tools

The instance describes Java IO file replication, and the instance describes javaio IO streams are mainly divided into two categories: byte streams and byte streams. Note: 1. audio files, images, and videos (with a wide range) are throttled by words 2. if it involves only the text, the ghost stream is used. Use byte streams to copy text content (other files can also be used) The Code is as follows: Import ja

Describes how to implement a simple Node. js scaffold, and describes node. js scaffolding. Cause In the work, a scaffold needs to be developed to provide users with convenient development. Target Audience Developers who have a certain understanding of front-end and Node operations and learn about the scaffolding development process or need to implement a scaffold by themselves. Target Develop a simple sc

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= number to fill 4 bytes. This is why some Base64 encodings end with one or two equals signs, but the equals sign is only two. because: So the remainder can only be one of the three numbers in 0,1,2 in any case. If the remainder is 0, it means that the original byte count is exactly a multiple of 3 (ideally). If it is 1, turn to 2 Base64 encoded characters, in order to let the BASE64 encoding is a multiple of 4, it is necessary to fill 2 equal signs, similarly, if 2, it is necessary to fill 1