What is bss in size?
bss, or BSS) is the abbreviation for ‘Block Started by Symbol’ by an old assembler (see this link). This is best explained with following (global/extern) variable: 1. int32_t myGlobal; Adding this variable will increase the ‘bss’ portion by 4: text data bss 0x1414 0x18 0x820.
What does bss stand for in C?
3. Uninitialized Data Segment: Uninitialized data segment often called the “bss” segment, named after an ancient assembler operator that stood for “block started by symbol.”
What is bss in arm?
bss or bss) is the portion of an object file, executable, or assembly language code that contains statically allocated variables that are declared but have not been assigned a value yet. It is often referred to as the “bss section” or “bss segment”.
What does bss stands for what does it mean in microprocessor?
It is the program a personal computer’s microprocessor uses to get the computer system started after it is turned on. What does BSS stand for? BSS stands for Basic Service Set. It provides the basic building block of a wireless LAN and will be a single access point together with all associated stations.
Is BSS zero initialized?
as we know . bss contains un-initialized variables. if in c code, programer initialize the variables before using them.
Is BSS part of RAM?
The ‘bss’（Block Started by Symbol) contains all the uninitalized data in RAM, which is initialized with zero in the startup code.
What is the purpose of BSS section?
bss section is used by the compiler for global and static variables. It is one of the default COFF sections that is used to reserve a specified amount of space in the memory map that can later be used for storing data. It is normally uninitialized. All global and static variables in a C program are placed in the .
Why is BSS segment required?
So the reason for . bss is to have smaller executables, saving space and allowing faster loading of the program, as the loader can just allocate a bunch of zeroes instead of having to copy the data from disk. When running the program, the program loader will load .
What is the point of BSS?
In embedded software, the bss segment is mapped into memory that is initialized to zero by the C run-time system before main() is entered. So it’s a quick and easy way of initializing a group of variables to zero rather than take up space in the program image explicitly setting them to zero.