Aufgabe 4: Kontextwechsel
Startup of the first core, also known as bootstrap processor (BSP) More...
#include "compiler/fix.h"
Include dependency graph for startup.h:Functions | |
| void | startup_bsp () ERROR_ON_CALL("The kernel entry point shall never be called from your code!") |
| Entry point of your kernel. More... | |
| void | kernel_init () ERROR_ON_CALL("The kernel init function shall never be called from your code!") |
| Initializes the C++ environment and detects system components. More... | |
| int | main () |
| Kernels main function. More... | |
| int | main_ap () |
| Entry point for application processors. More... | |
Detailed Description
Startup of the first core, also known as bootstrap processor (BSP)
Function Documentation
| void startup_bsp | ( | ) |
Entry point of your kernel.
Executed by boot loader. Stores Pointer to Multiboot information structure, initializes stack pointer, switches to long mode and finally calls the C++ kernel_init function
| void kernel_init | ( | ) |
Initializes the C++ environment and detects system components.
The startup code(both for bootstrap and application processor) jumps to this high level function. After initialization it will call main() or main_ap() respectively
| int main | ( | ) |
Kernels main function.
Called after initialization of the system by kernel_init()
- Note
- This code will only be executed on the booting CPU (i.e., the one with ID 0).
| int main_ap | ( | ) |
Entry point for application processors.
Called after initialization of the system by kernel_init()
- Note
- Code in this function will be executed on all APs (i.e., all CPUs except ID 0)