apio
26211bd49f
The only thing doing weird stuff is exec(), so that's commented out and throws ENOSYS right now. But we have two user tasks running in parallel, isolated from each other!
101 lines
2.2 KiB
C++
101 lines
2.2 KiB
C++
#define MODULE "main"
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#include "acpi/RSDT.h"
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#include "assert.h"
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#include "config.h"
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#include "cpu/CPU.h"
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#include "fs/VFS.h"
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#include "fs/devices/DeviceFS.h"
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#include "gdt/GDT.h"
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#include "init/Init.h"
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#include "init/InitRD.h"
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#include "interrupts/IDT.h"
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#include "interrupts/Install.h"
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#include "interrupts/Interrupts.h"
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#include "io/PCI.h"
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#include "io/PIC.h"
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#include "io/Serial.h"
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#include "log/Log.h"
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#include "memory/AddressSpace.h"
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#include "memory/Memory.h"
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#include "memory/MemoryManager.h"
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#include "memory/MemoryMap.h"
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#include "memory/PMM.h"
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#include "memory/VMM.h"
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#include "misc/PCITypes.h"
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#include "misc/reboot.h"
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#include "panic/Panic.h"
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#include "rand/Mersenne.h"
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#include "render/Framebuffer.h"
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#include "render/TextRenderer.h"
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#include "std/stdio.h"
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#include "std/stdlib.h"
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#include "std/string.h"
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#include "sys/elf/ELFLoader.h"
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#include "thread/PIT.h"
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#include "thread/Scheduler.h"
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extern "C" void _start()
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{
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Init::check_magic();
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Init::disable_smp(); // Put all other cores except the bootstrap one in an infinite loop
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Init::early_init();
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kinfoln("Starting Moon %s", moon_version());
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CPU::log_cpu_information();
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Memory::walk_memory_map();
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GDT::load();
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kinfoln("Loaded GDT");
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Interrupts::install();
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IDT::load();
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kinfoln("Loaded IDT");
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PIT::initialize(1000); // 1000 times per second
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kinfoln("Prepared PIT");
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Scheduler::init();
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kinfoln("Prepared scheduler");
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Scheduler::add_kernel_task([]() {
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while (1)
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{
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sleep(400);
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Scheduler::reap_tasks();
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}
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});
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Scheduler::load_user_task("/bin/init");
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Scheduler::load_user_task("/bin/sym");
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kinfoln("Prepared scheduler tasks");
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ASSERT(VFS::mkdir("/", "dev") == 0);
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VFS::mount("/dev", DeviceFS::get());
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Init::finish_kernel_boot();
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PIC::remap();
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PIC::enable_master(0b11111100); // enable keyboard and PIT
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PIC::enable_slave(0b11111111);
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kinfoln("Prepared PIC");
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Interrupts::enable(); // Task switching commences here
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kinfoln("Interrupts enabled");
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PCI::scan([](PCI::Device& dev) {
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kinfoln("Found PCI device %x:%x, %s", dev.id().vendor, dev.id().device, pci_type_name(dev.type()));
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});
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Scheduler::exit(0);
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} |