2/13/2023 0 Comments How to create my own linux os 2017![]() ![]() The linker image file consists of an entry point,(in our case it is _start defined in file boot.S) and sections with size defined in the BLOCK keyword aligned from how much spaced. If you open the final kernel image(.bin file) in hexeditor, you can see lots of 00 bytes. ![]() The information is stored in the final kernel image. Linker image file provides how much size should be allocated to each of the sections. a oppy disk, a hard disk, a USB dongle, etc.). It mostly require to link all the object files together to form a final kernel image. Somehow, it must load the operating system - whatever variant that may be - from some permanent storage device that is currently attached to the computer (e.g. Each memory is aligned with the size of each block. You can see the each sections by compiling the source code without assembling it.Īnd this sections requires a memory to store them, this memory size is provided by the linker image file. As you know, every process consists of different sections such as data, bss, rodata and text. Then in _start, we are storing a current stack pointer, and calling the main function of a kernel. ![]() We have defined a stack of size 512 bytes and managed by stackBottom and stackTop identifiers. ![]()
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