5858

Move script to create a Soso boot image into a sub-directory.

I'm trying to streamline newcomer attention to just a couple of use cases.

1 files changed, 0 insertions, 198 deletions

diff --git a/kernel.soso/descriptortables.c b/kernel.soso/descriptortables.c
deleted file mode 100644
index b6aab367..00000000
--- a/kernel.soso/descriptortables.c
+++ /dev/null
@@ -1,198 +0,0 @@
-#include "screen.h"
-#include "common.h"
-#include "descriptortables.h"
-#include "isr.h"
-#include "process.h"
-
-extern void flushGdt(uint32);
-extern void flushIdt(uint32);
-extern void flushTss();
-
-
-static void initializeGdt();
-static void initializeIdt();
-static void setGdtEntry(int32 num, uint32 base, uint32 limit, uint8 access, uint8 gran);
-static void setIdtEntry(uint8 num, uint32 base, uint16 sel, uint8 flags);
-
-GdtEntry gGdtEntries[6];
-GdtPointer   gGdtPointer;
-IdtEntry gIdtEntries[256];
-IdtPointer   gIdtPointer;
-Tss 		gTss;
-
-extern IsrFunction gInterruptHandlers[];
-
-static void handleDoubleFault(Registers *regs);
-static void handleGeneralProtectionFault(Registers *regs);
-
-void initializeDescriptorTables() {
-    initializeGdt();
-
-    initializeIdt();
-
-    memset((uint8*)&gInterruptHandlers, 0, sizeof(IsrFunction)*256);
-
-    registerInterruptHandler(8, handleDoubleFault);
-    registerInterruptHandler(13, handleGeneralProtectionFault);
-}
-
-static void initializeGdt() {
-    gGdtPointer.limit = (sizeof(GdtEntry) * 6) - 1;
-    gGdtPointer.base  = (uint32)&gGdtEntries;
-
-    setGdtEntry(0, 0, 0, 0, 0);                // 0x00 Null segment
-    setGdtEntry(1, 0, 0xFFFFFFFF, 0x9A, 0xCF); // 0x08 Code segment
-    setGdtEntry(2, 0, 0xFFFFFFFF, 0x92, 0xCF); // 0x10 Data segment
-    setGdtEntry(3, 0, 0xFFFFFFFF, 0xFA, 0xCF); // 0x18 User mode code segment
-    setGdtEntry(4, 0, 0xFFFFFFFF, 0xF2, 0xCF); // 0x20 User mode data segment
-
-    //TSS
-    memset((uint8*)&gTss, 0, sizeof(gTss));
-    gTss.debug_flag = 0x00;
-    gTss.io_map = 0x00;
-    gTss.esp0 = 0;//0x1FFF0;
-    gTss.ss0 = 0x10;//0x18;
-
-    gTss.cs   = 0x0B; //from ring 3 - 0x08 | 3 = 0x0B
-    gTss.ss = gTss.ds = gTss.es = gTss.fs = gTss.gs = 0x13; //from ring 3 = 0x10 | 3 = 0x13
-    uint32 tss_base = (uint32) &gTss;
-    uint32 tss_limit = tss_base + sizeof(gTss);
-    setGdtEntry(5, tss_base, tss_limit, 0xE9, 0x00);
-
-    flushGdt((uint32)&gGdtPointer);
-    flushTss();
-}
-
-// Set the value of one GDT entry.
-static void setGdtEntry(int32 num, uint32 base, uint32 limit, uint8 access, uint8 gran) {
-    gGdtEntries[num].base_low    = (base & 0xFFFF);
-    gGdtEntries[num].base_middle = (base >> 16) & 0xFF;
-    gGdtEntries[num].base_high   = (base >> 24) & 0xFF;
-
-    gGdtEntries[num].limit_low   = (limit & 0xFFFF);
-    gGdtEntries[num].granularity = (limit >> 16) & 0x0F;
-    
-    gGdtEntries[num].granularity |= gran & 0xF0;
-    gGdtEntries[num].access      = access;
-}
-
-void irqTimer();
-
-static void initializeIdt() {
-    gIdtPointer.limit = sizeof(IdtEntry) * 256 -1;
-    gIdtPointer.base  = (uint32)&gIdtEntries;
-
-    memset((uint8*)&gIdtEntries, 0, sizeof(IdtEntry)*256);
-
-    // Remap the irq table.
-    outb(0x20, 0x11);
-    outb(0xA0, 0x11);
-    outb(0x21, 0x20);
-    outb(0xA1, 0x28);
-    outb(0x21, 0x04);
-    outb(0xA1, 0x02);
-    outb(0x21, 0x01);
-    outb(0xA1, 0x01);
-    outb(0x21, 0x0);
-    outb(0xA1, 0x0);
-
-    setIdtEntry( 0, (uint32)isr0 , 0x08, 0x8E);
-    setIdtEntry( 1, (uint32)isr1 , 0x08, 0x8E);
-    setIdtEntry( 2, (uint32)isr2 , 0x08, 0x8E);
-    setIdtEntry( 3, (uint32)isr3 , 0x08, 0x8E);
-    setIdtEntry( 4, (uint32)isr4 , 0x08, 0x8E);
-    setIdtEntry( 5, (uint32)isr5 , 0x08, 0x8E);
-    setIdtEntry( 6, (uint32)isr6 , 0x08, 0x8E);
-    setIdtEntry( 7, (uint32)isr7 , 0x08, 0x8E);
-    setIdtEntry( 8, (uint32)isr8 , 0x08, 0x8E);
-    setIdtEntry( 9, (uint32)isr9 , 0x08, 0x8E);
-    setIdtEntry(10, (uint32)isr10, 0x08, 0x8E);
-    setIdtEntry(11, (uint32)isr11, 0x08, 0x8E);
-    setIdtEntry(12, (uint32)isr12, 0x08, 0x8E);
-    setIdtEntry(13, (uint32)isr13, 0x08, 0x8E);
-    setIdtEntry(14, (uint32)isr14, 0x08, 0x8E);
-    setIdtEntry(15, (uint32)isr15, 0x08, 0x8E);
-    setIdtEntry(16, (uint32)isr16, 0x08, 0x8E);
-    setIdtEntry(17, (uint32)isr17, 0x08, 0x8E);
-    setIdtEntry(18, (uint32)isr18, 0x08, 0x8E);
-    setIdtEntry(19, (uint32)isr19, 0x08, 0x8E);
-    setIdtEntry(20, (uint32)isr20, 0x08, 0x8E);
-    setIdtEntry(21, (uint32)isr21, 0x08, 0x8E);
-    setIdtEntry(22, (uint32)isr22, 0x08, 0x8E);
-    setIdtEntry(23, (uint32)isr23, 0x08, 0x8E);
-    setIdtEntry(24, (uint32)isr24, 0x08, 0x8E);
-    setIdtEntry(25, (uint32)isr25, 0x08, 0x8E);
-    setIdtEntry(26, (uint32)isr26, 0x08, 0x8E);
-    setIdtEntry(27, (uint32)isr27, 0x08, 0x8E);
-    setIdtEntry(28, (uint32)isr28, 0x08, 0x8E);
-    setIdtEntry(29, (uint32)isr29, 0x08, 0x8E);
-    setIdtEntry(30, (uint32)isr30, 0x08, 0x8E);
-    setIdtEntry(31, (uint32)isr31, 0x08, 0x8E);
-
-    setIdtEntry(32, (uint32)irqTimer, 0x08, 0x8E);
-    setIdtEntry(33, (uint32)irq1, 0x08, 0x8E);
-    setIdtEntry(34, (uint32)irq2, 0x08, 0x8E);
-    setIdtEntry(35, (uint32)irq3, 0x08, 0x8E);
-    setIdtEntry(36, (uint32)irq4, 0x08, 0x8E);
-    setIdtEntry(37, (uint32)irq5, 0x08, 0x8E);
-    setIdtEntry(38, (uint32)irq6, 0x08, 0x8E);
-    setIdtEntry(39, (uint32)irq7, 0x08, 0x8E);
-    setIdtEntry(40, (uint32)irq8, 0x08, 0x8E);
-    setIdtEntry(41, (uint32)irq9, 0x08, 0x8E);
-    setIdtEntry(42, (uint32)irq10, 0x08, 0x8E);
-    setIdtEntry(43, (uint32)irq11, 0x08, 0x8E);
-    setIdtEntry(44, (uint32)irq12, 0x08, 0x8E);
-    setIdtEntry(45, (uint32)irq13, 0x08, 0x8E);
-    setIdtEntry(46, (uint32)irq14, 0x08, 0x8E);
-    setIdtEntry(47, (uint32)irq15, 0x08, 0x8E);
-    setIdtEntry(128, (uint32)isr128, 0x08, 0x8E);
-
-    flushIdt((uint32)&gIdtPointer);
-}
-
-static void setIdtEntry(uint8 num, uint32 base, uint16 sel, uint8 flags) {
-    gIdtEntries[num].base_lo = base & 0xFFFF;
-    gIdtEntries[num].base_hi = (base >> 16) & 0xFFFF;
-
-    gIdtEntries[num].sel     = sel;
-    gIdtEntries[num].always0 = 0;
-    gIdtEntries[num].flags   = flags  | 0x60;
-}
-
-static void handleDoubleFault(Registers *regs) {
-    printkf("Double fault!!! Error code:%d\n", regs->errorCode);
-
-    PANIC("Double fault!!!");
-}
-
-static void handleGeneralProtectionFault(Registers *regs) {
-    printkf("General protection fault!!! Error code:%d - IP:%x\n", regs->errorCode, regs->eip);
-
-    Thread* faultingThread = getCurrentThread();
-    if (NULL != faultingThread) {
-        Thread* mainThread = getMainKernelThread();
-
-        if (mainThread == faultingThread) {
-            PANIC("General protection fault in Kernel main thread!!!");
-        }
-        else {
-            printkf("Faulting thread is %d\n", faultingThread->threadId);
-
-            if (faultingThread->userMode) {
-                printkf("Destroying process %d\n", faultingThread->owner->pid);
-
-                destroyProcess(faultingThread->owner);
-            }
-            else {
-                printkf("Destroying kernel thread %d\n", faultingThread->threadId);
-
-                destroyThread(faultingThread);
-            }
-
-            waitForSchedule();
-        }
-    }
-    else {
-        PANIC("General protection fault!!!");
-    }
-}