Kernel/Kernel.cpp
2022-10-10 23:50:34 +03:00

64 lines
1.9 KiB
C++

#include "kernel.h"
#include <interrupts.hpp>
#include <memory.hpp>
#include <string.h>
#include <printf.h>
#include <time.hpp>
#include <debug.h>
BootInfo *bInfo = nullptr;
Video::Display *Display = nullptr;
SymbolResolver::Symbols *KernelSymbolTable = nullptr;
Power::Power *PowerManager = nullptr;
PCI::PCI *PCIManager = nullptr;
// For the Display class. Printing on first buffer.
extern "C" void putchar(char c) { Display->Print(c, 0); }
#ifdef __debug_vscode__
extern "C" int printf_(const char *format, ...);
extern "C" int vprintf_(const char *format, va_list arg);
#endif
void KPrint(const char *format, ...)
{
Time tm = ReadClock();
printf_("[%02ld:%02ld:%02ld] ", tm.Hour, tm.Minute, tm.Second);
va_list args;
va_start(args, format);
vprintf_(format, args);
va_end(args);
putchar('\n');
Display->SetBuffer(0);
}
EXTERNC void aarch64Entry(uint64_t dtb_ptr32, uint64_t x1, uint64_t x2, uint64_t x3)
{
trace("Hello, World!");
while (1)
CPU::Halt();
}
EXTERNC void Entry(BootInfo *Info)
{
trace("Hello, World!");
InitializeMemoryManagement(Info);
bInfo = (BootInfo *)KernelAllocator.RequestPages(TO_PAGES(sizeof(BootInfo)));
memcpy(bInfo, Info, sizeof(BootInfo));
debug("BootInfo structure is at %p", bInfo);
Display = new Video::Display(bInfo->Framebuffer[0]);
printf_("%s - %s(%s)\n", KERNEL_NAME, KERNEL_VERSION, GIT_COMMIT_SHORT);
/**************************************************************************************/
KPrint("Initializing GDT and IDT");
Interrupts::Initialize();
KPrint("Loading kernel symbols");
KernelSymbolTable = new SymbolResolver::Symbols((uint64_t)Info->Kernel.FileBase);
KPrint("Initializing Power Manager");
PowerManager = new Power::Power;
KPrint("Initializing PCI Manager");
PCIManager = new PCI::PCI;
while (1)
CPU::Halt();
}