Luna/kernel/src/init/Init.cpp

#define MODULE "init"

#include "init/Init.h"
#include "bootboot.h"
#include "cpu/CPU.h"
#include "init/InitRD.h"
#include "interrupts/Interrupts.h"
#include "io/Serial.h"
#include "log/Log.h"
#include "memory/MemoryManager.h"
#include "memory/PMM.h"
#include "memory/VMM.h"
#include "misc/hang.h"
#include "rand/Init.h"
#include "rand/Mersenne.h"
#include "render/Framebuffer.h"
#include "render/TextRenderer.h"
#include "std/assert.h"
#include "std/string.h"

extern BOOTBOOT bootboot;
extern "C" char environment[4096];

uintptr_t __stack_chk_guard = 0xfeff34;

void Init::check_magic()
{
    ASSERT(strncmp((char*)bootboot.magic, BOOTBOOT_MAGIC, 4) == 0);
}

void Init::disable_smp()
{
    if (CPU::get_initial_apic_id() != bootboot.bspid) { hang(); }
    return;
}

extern "C" void asm_enable_sse();

void Init::early_init()
{
    Interrupts::disable();
    asm volatile("cld");

    asm_enable_sse();

    framebuffer0.init((void*)bootboot.fb_ptr, bootboot.fb_type, bootboot.fb_scanline, bootboot.fb_width,
                      bootboot.fb_height);

    MemoryManager::init();

    if (strstr(environment, "quiet=1"))
    {
        KernelLog::toggle_log_level(LogLevel::DEBUG);
        KernelLog::toggle_log_level(LogLevel::INFO);
    }
    else if (!strstr(environment, "verbose=1")) { KernelLog::toggle_log_level(LogLevel::DEBUG); }

    InitRD::init();

    Mersenne::init();

    kdbgln("Page bitmap uses %ld bytes of memory", PMM::get_bitmap_size());

    __stack_chk_guard = Mersenne::get();
}

void Init::finish_kernel_boot()
{
    KernelLog::toggle_log_backend(Backend::Console);
    framebuffer0.clear(Color::Black);
    TextRenderer::reset();
}