BarinkOS/source/kernel/crti.s
Nigel 5051b8903c Divided the kernel into seperate distinct phases
The first stage after GRUB will be Pre-Kernel. This stage will organize the
information we receive from the bootloader. (in our case that will be grub)

The second stage is for now called early_main. The program will at this
point already be running in virtual higher-half / higher-quarter address space.
The goal of the second stage is to set up the kernel in such a way that we are
ready to jump in to usermode.

The third stage is for now called kernel_main. This stage will jump us into
usermode and load the startup programs.

- Added a GRUB entry for tests
- Started writing the pre-kernel stage
- Removed knowledge of multiboot from early_main
- Edited the linkerscript to link variables in pre-kernel to
	lower address space. ( from 1MB and up)
2022-08-22 21:16:34 +02:00

14 lines
250 B
ArmAsm

.section .init
.global _init
.type _init, @function
_init:
push %ebp
movl %esp, %ebp
/* gcc will nicely put the contents of crtbegin.o's .init section here. */
.section .fini
.global _fini
.type _fini, @function
_fini:
push %ebp
movl %esp, %ebp