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#include <AK/Types.h>
#include "kmalloc.h"
#include "i386.h"
#include "i8253.h"
#include <Kernel/Devices/KeyboardDevice.h>
#include "Process.h"
#include "PIC.h"
#include <Kernel/Devices/IDEDiskDevice.h>
#include <Kernel/Devices/MBRPartitionTable.h>
#include <Kernel/Devices/DiskPartition.h>
#include "KSyms.h"
#include <Kernel/Devices/NullDevice.h>
#include <Kernel/Devices/ZeroDevice.h>
#include <Kernel/Devices/FullDevice.h>
#include <Kernel/Devices/RandomDevice.h>
#include <Kernel/FileSystem/Ext2FileSystem.h>
#include <Kernel/FileSystem/VirtualFileSystem.h>
#include <Kernel/VM/MemoryManager.h>
#include <Kernel/FileSystem/ProcFS.h>
#include "RTC.h"
#include <Kernel/TTY/VirtualConsole.h>
#include "Scheduler.h"
#include <Kernel/Devices/PS2MouseDevice.h>
#include <Kernel/TTY/PTYMultiplexer.h>
#include <Kernel/FileSystem/DevPtsFS.h>
#include <Kernel/Devices/BXVGADevice.h>
#include <Kernel/Net/E1000NetworkAdapter.h>
#include <Kernel/Net/NetworkTask.h>
#include <Kernel/Devices/DebugLogDevice.h>
#include <Kernel/Multiboot.h>
//#define STRESS_TEST_SPAWNING
VirtualConsole* tty0;
VirtualConsole* tty1;
VirtualConsole* tty2;
VirtualConsole* tty3;
KeyboardDevice* keyboard;
PS2MouseDevice* ps2mouse;
DebugLogDevice* dev_debuglog;
NullDevice* dev_null;
VFS* vfs;
#ifdef STRESS_TEST_SPAWNING
[[noreturn]] static void spawn_stress()
{
dword last_sum_alloc = sum_alloc;
for (unsigned i = 0; i < 10000; ++i) {
int error;
Process::create_user_process("/bin/true", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, { }, tty0);
dbgprintf("malloc stats: alloc:%u free:%u eternal:%u !delta:%u\n", sum_alloc, sum_free, kmalloc_sum_eternal, sum_alloc - last_sum_alloc);
last_sum_alloc = sum_alloc;
sleep(60);
}
for (;;) {
asm volatile("hlt");
}
}
#endif
[[noreturn]] static void init_stage2()
{
Syscall::initialize();
auto dev_zero = make<ZeroDevice>();
auto dev_full = make<FullDevice>();
auto dev_random = make<RandomDevice>();
auto dev_ptmx = make<PTYMultiplexer>();
// TODO: decide what drive/partition to use based on cmdline from
// bootloader. currently hardcoded to the equivalent of hd0,1.
auto dev_hd0 = IDEDiskDevice::create();
MBRPartitionTable dev_hd0pt(dev_hd0.copy_ref());
if (!dev_hd0pt.initialize()) {
kprintf("init_stage2: couldn't read MBR from disk");
hang();
}
auto dev_hd0p1 = dev_hd0pt.partition(1);
if (!dev_hd0p1) {
kprintf("init_stage2: couldn't get first partition");
hang();
}
auto e2fs = Ext2FS::create(*dev_hd0p1.copy_ref());
if (!e2fs->initialize()) {
kprintf("init_stage2: couldn't open root filesystem");
hang();
}
vfs->mount_root(e2fs.copy_ref());
dbgprintf("Load ksyms\n");
load_ksyms();
dbgprintf("Loaded ksyms\n");
vfs->mount(ProcFS::the(), "/proc");
vfs->mount(DevPtsFS::the(), "/dev/pts");
int error;
auto* system_server_process = Process::create_user_process("/bin/SystemServer", (uid_t)100, (gid_t)100, (pid_t)0, error, { }, { }, tty0);
if (error != 0) {
dbgprintf("init_stage2: error spawning SystemServer: %d\n", error);
hang();
}
system_server_process->set_priority(Process::HighPriority);
#ifdef STRESS_TEST_SPAWNING
Process::create_kernel_process("spawn_stress", spawn_stress);
#endif
current->process().sys$exit(0);
ASSERT_NOT_REACHED();
}
extern "C" {
multiboot_info_t* multiboot_info_ptr;
}
extern "C" [[noreturn]] void init()
{
kprintf("Kernel command line: '%s'\n", multiboot_info_ptr->cmdline);
sse_init();
kmalloc_init();
init_ksyms();
vfs = new VFS;
dev_debuglog = new DebugLogDevice;
auto console = make<Console>();
RTC::initialize();
PIC::initialize();
gdt_init();
idt_init();
keyboard = new KeyboardDevice;
ps2mouse = new PS2MouseDevice;
dev_null = new NullDevice;
VirtualConsole::initialize();
tty0 = new VirtualConsole(0, VirtualConsole::AdoptCurrentVGABuffer);
tty1 = new VirtualConsole(1);
tty2 = new VirtualConsole(2);
tty3 = new VirtualConsole(3);
VirtualConsole::switch_to(0);
kprintf("Starting Serenity Operating System...\n");
MemoryManager::initialize();
PIT::initialize();
new BXVGADevice;
auto e1000 = E1000NetworkAdapter::autodetect();
Retained<ProcFS> new_procfs = ProcFS::create();
new_procfs->initialize();
auto devptsfs = DevPtsFS::create();
devptsfs->initialize();
Process::initialize();
Thread::initialize();
Process::create_kernel_process("init_stage2", init_stage2);
Process::create_kernel_process("syncd", [] {
for (;;) {
Syscall::sync();
current->sleep(1 * TICKS_PER_SECOND);
}
});
Process::create_kernel_process("Finalizer", [] {
g_finalizer = current;
current->process().set_priority(Process::LowPriority);
for (;;) {
Thread::finalize_dying_threads();
current->block(Thread::BlockedLurking);
Scheduler::yield();
}
});
Process::create_kernel_process("NetworkTask", NetworkTask_main);
Scheduler::pick_next();
sti();
// This now becomes the idle process :^)
for (;;) {
asm("hlt");
}
}
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