mirror of
https://gitlab.com/sortix/sortix.git
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276 lines
9.8 KiB
C++
276 lines
9.8 KiB
C++
/******************************************************************************
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COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011.
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This file is part of Sortix.
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Sortix is free software: you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation, either version 3 of the License, or (at your option) any later
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version.
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Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along
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with Sortix. If not, see <http://www.gnu.org/licenses/>.
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kernel.cpp
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A common interface shared by all devices that can be printed text to.
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******************************************************************************/
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#include "platform.h"
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#include <libmaxsi/memory.h>
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#include <libmaxsi/string.h>
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#include <libmaxsi/format.h>
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#include "globals.h"
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#include "iprintable.h"
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#include "log.h"
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#include "panic.h"
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#include "descriptor_tables.h"
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#include "iirqhandler.h"
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#include "time.h"
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#include "keyboard.h"
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#include "multiboot.h"
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#include "memorymanagement.h"
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#include "scheduler.h"
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#include "syscall.h"
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#include "pong.h"
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#include "conway.h"
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#include "pci.h"
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#include "uart.h"
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#include "serialterminal.h"
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#include "vgaterminal.h"
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#include "elf.h"
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using namespace Maxsi;
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void* RunApplication(void* Parameter);
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extern "C" size_t stack[4096] = {0};
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extern "C" size_t stackend = 0;
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namespace Sortix
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{
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#ifdef PLATFORM_HTTP
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namespace HTTP { void Init(); }
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#endif
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void DoBSoD()
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{
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#ifdef PLATFORM_SERIAL
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UART::WriteChar(27);
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UART::WriteChar(91);
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UART::WriteChar(48 + 4);
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UART::WriteChar(48 + 4);
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UART::WriteChar(109);
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#endif
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Log::Print(" ");
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Log::Print(" ");
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Log::Print("Windows Boot Manager has experienced a problem. ");
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Log::Print(" ");
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Log::Print(" ");
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Log::Print(" Status: 0xc000000f ");
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Log::Print(" ");
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Log::Print(" ");
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Log::Print(" ");
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Log::Print(" Info: An error occured during transferring execution. ");
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Log::Print(" ");
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Log::Print(" ");
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Log::Print(" ");
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Log::Print("You can try to recover the system with the Microsoft Windows System Recovery ");
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Log::Print("Tools. (You might need to restart the system manually). ");
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Log::Print(" ");
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Log::Print("If the problem continues, please contact your system administrator or computer ");
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Log::Print("manufacturer. ");
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Log::Print(" ");
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Log::Print(" ");
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Log::Print(" ");
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Log::Print(" ");
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Log::Print(" ");
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Log::Print(" ");
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Log::Print(" ");
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#ifdef JSSORTIX
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JSSortix::Exit();
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#else
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while ( true ) { }
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#endif
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}
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void DoMaxsiLogo()
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{
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Log::Print(" _ \n");
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Log::Print(" / \\ \n");
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Log::Print(" /\\ /\\ / \\ \n");
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Log::Print(" / \\ / \\ | | \n");
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Log::Print(" / \\/ \\ | | \n");
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Log::Print(" | O O \\_______________________ / | \n");
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Log::Print(" | | \n");
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Log::Print(" | \\_______/ / \n");
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Log::Print(" \\ / \n");
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Log::Print(" ------ --------------- ---/ \n");
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Log::Print(" / \\ / \\ \n");
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Log::Print(" / \\ / \\ \n");
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Log::Print(" / \\ / \\ \n");
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Log::Print(" /_____________\\ /____________\\ \n");
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Log::Print(" \n");
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}
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void DoWelcome()
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{
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#ifdef BSOD
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DoBSoD();
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#endif
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DoMaxsiLogo();
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#ifdef PLATFORM_SERIAL
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#ifdef PONG
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Log::Print(" = THE SORTIX KERNEL - PONG EDITION = ");
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#elif defined(CONWAY)
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Log::Print(" = THE SORTIX KERNEL - CONWAY'S GAME OF LIFE EDITION = ");
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#else
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Log::Print(" ");
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#endif
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Log::Print(" ");
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Log::Print(" ");
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Log::Print(" ");
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Log::Print(" ");
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Log::Print(" ");
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Log::Print(" ");
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#endif
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}
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extern "C" void KernelInit(unsigned long Magic, multiboot_info_t* BootInfo)
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{
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#ifdef JSSORTIX
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// TODO: Make JSVM multiboot compliant.
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multiboot_info_t MBInfo; BootInfo = &MBInfo;
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multiboot_memory_map_t MBMMap;
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MBMMap.addr = 0x100000;
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MBMMap.len = 0xC00000;
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MBMMap.type = MULTIBOOT_MEMORY_AVAILABLE;
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MBMMap.size = sizeof(MBMMap) - sizeof(MBMMap.size);
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BootInfo->flags = MULTIBOOT_INFO_MEM_MAP;
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BootInfo->mmap_addr = (multiboot_uint32_t) &MBMMap;
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BootInfo->mmap_length = sizeof(MBMMap);
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#endif
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// Initialize the default terminal.
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Maxsi::Format::Callback logcallback;
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void* logpointer;
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#if PLATFORM_SERIAL
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// Initialize the serial driver.
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UART::Init();
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SerialTerminal::Init();
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logcallback = SerialTerminal::Print;
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logpointer = NULL;
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#else
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VGATerminal::Init();
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logcallback = VGATerminal::Print;
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logpointer = NULL;
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#endif
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// Initialize the kernel log.
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Log::Init(logcallback, logpointer);
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// Just a test to see if the color system works! Make the BG red!
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Log::Print("\e[37;41m\e[2J");
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// Display the boot welcome screen.
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DoWelcome();
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#ifndef JSSORTIX
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// Search for PCI devices and load their drivers.
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PCI::Init();
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#endif
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// Initialize the paging.
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Page::Init(BootInfo);
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uint8_t* initrd = NULL;
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size_t initrdsize = 0;
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#ifdef INITRD
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uint8_t** modules = (uint8_t**) BootInfo->mods_addr;
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for ( uint32_t I = 0; I < BootInfo->mods_count; I++ )
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{
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initrdsize = modules[2*I+1] - modules[2*I+0];
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initrd = modules[2*I+0];
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break;
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}
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#endif
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// Initialize the GDT and TSS structures.
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GDT::Init();
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// Initialize the interrupt descriptor tables.
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IDT::Init();
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if ( BootInfo == NULL ) { Panic("kernel.cpp: The bootinfo structure was NULL. Are your bootloader multiboot compliant?"); }
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#ifdef PLATFORM_VIRTUAL_MEMORY
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// Initialize virtual memory. TODO: This is not fully working yet.
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VirtualMemory::Init();
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#ifdef PLATFORM_KERNEL_HEAP
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// Initialize the kernel heap.
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Maxsi::Memory::Init();
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#endif
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#endif
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// Initialize the keyboard.
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Keyboard::Init();
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// Initialize system calls.
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Syscall::Init();
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// Initialize the scheduler.
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Scheduler::Init();
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Thread::Entry initstart = RunApplication;
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// Create an address space for the first process.
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addr_t addrspace = VirtualMemory::CreateAddressSpace();
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// Use the new address space!
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VirtualMemory::SwitchAddressSpace(addrspace);
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// Create the first process!
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Process* process = new Process(addrspace);
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if ( process == 0 ) { Panic("kernel.cpp: Could not allocate the first process!"); }
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if ( initrd != NULL )
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{
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initstart = (Thread::Entry) ELF::Construct(initrd, initrdsize);
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if ( initstart == NULL )
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{
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Panic("kernel.cpp: Could not construct ELF program");
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}
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// HACK: This should be determined from other information!
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process->_endcodesection = 0x400000UL;
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}
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if ( Scheduler::CreateThread(process, initstart) == NULL )
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{
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Panic("Could not create a sample thread!");
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}
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// Lastly set up the timer driver and we are ready to run the OS.
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Time::Init();
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// Run the OS.
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Scheduler::MainLoop();
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}
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}
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