2016.4.6 Writing of linker script files

1, the linker script file composition:

Basic Composition: Segment: Code snippet. Text data segment. Data BSS segment. BSS

Start link Address

Snap To

Variable

Code Snippet header File

2. Instance files:

sections{

.  = 0x0; Set the program start link address, = left and right side to space

. = ALIGN (4);//, Set code snippet four byte alignment, = left and right sides to space

. Text://white space before colon

{

START.O (. Text)//Set the first file of the code snippet, and the CPU starts executing as soon as it is power on.

* (. Text)

}

. = ALIGN (4);//Set data segment four-byte alignment, equal or left space

. Data://colon money to space

{

* (. Data)

}

. = ALIGN (4);//Set BSS segment four-byte alignment, equal to or left space

Bss_start =.;/ /custom variable Bss_start, used to record the start address of the BSS segment, space around the equals sign

. BSS:

{

* (. BSS)

}

Bss_end =.;/ /custom variable bss_end, used to record the end address of the BSS segment, space around the equals sign

}

}

2016.4.6 Writing of linker script files