Fennix/Kernel.cpp
2022-10-10 09:00:32 +03:00

67 lines
1.9 KiB
C++

#include "kernel.h"
#include <interrupts.hpp>
#include <display.hpp>
#include <symbols.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;
// 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 kernel_aarch64_entry(uint64_t dtb_ptr32, uint64_t x1, uint64_t x2, uint64_t x3)
{
trace("Hello, World!");
while (1)
CPU::Halt();
}
EXTERNC void kernel_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);
// printf_("%s\n", CPU::Vendor());
// printf_("%s\n", CPU::Name());
// printf_("%s\n", CPU::Hypervisor());
Display->SetBuffer(0);
for (size_t i = 0; i < 250; i++)
KPrint("Hello, World! (%02ld)", i);
asm("int $0x1");
while (1)
CPU::Halt();
}