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Kernel/core/crash/crash_handler.cpp
EnderIce2 96daa43d38
Update kernel
2024-01-19 06:47:42 +02:00

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/*
This file is part of Fennix Kernel.
Fennix Kernel is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix Kernel is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
*/
#include "../crashhandler.hpp"
#include "chfcts.hpp"
#include <display.hpp>
#include <bitmap.hpp>
#include <convert.h>
#include <printf.h>
#include <lock.hpp>
#include <rand.hpp>
#include <uart.hpp>
#include <debug.h>
#include <smp.hpp>
#include <cpu.hpp>
#include <io.h>
#if defined(a64)
#include "../../arch/amd64/cpu/gdt.hpp"
#include "../arch/amd64/cpu/apic.hpp"
#elif defined(a32)
#include "../../arch/i386/cpu/gdt.hpp"
#include "../arch/i386/cpu/apic.hpp"
#elif defined(aa64)
#endif
#include "../../kernel.h"
NewLock(UserInputLock);
namespace CrashHandler
{
uintptr_t PageFaultAddress = 0;
void *EHIntFrames[INT_FRAMES_MAX];
static bool ExceptionOccurred = false;
int SBIdx = 255;
CrashKeyboardDriver *kbd;
SafeFunction void printfWrapper(char c, void *unused)
{
Display->Print(c, SBIdx, true);
UNUSED(unused);
}
SafeFunction void EHPrint(const char *Format, ...)
{
va_list args;
va_start(args, Format);
vfctprintf(printfWrapper, NULL, Format, args);
va_end(args);
}
SafeFunction void EHDumpData(void *Address, unsigned long Length)
{
EHPrint("-------------------------------------------------------------------------\n");
Display->SetBuffer(SBIdx);
unsigned char *AddressChar = (unsigned char *)Address;
unsigned char Buffer[17];
unsigned long Iterate;
for (Iterate = 0; Iterate < Length; Iterate++)
{
if ((Iterate % 16) == 0)
{
if (Iterate != 0)
EHPrint(" \e8A78FF%s\eAABBCC\n", Buffer);
EHPrint(" \e9E9E9E%04x\eAABBCC ", Iterate);
Display->SetBuffer(SBIdx);
}
EHPrint(" \e4287f5%02x\eAABBCC", AddressChar[Iterate]);
if ((AddressChar[Iterate] < 0x20) || (AddressChar[Iterate] > 0x7e))
Buffer[Iterate % 16] = '.';
else
Buffer[Iterate % 16] = AddressChar[Iterate];
Buffer[(Iterate % 16) + 1] = '\0';
}
while ((Iterate % 16) != 0)
{
EHPrint(" ");
Display->SetBuffer(SBIdx);
Iterate++;
}
EHPrint(" \e8A78FF%s\eAABBCC\n", Buffer);
EHPrint("-------------------------------------------------------------------------\n\n.");
Display->SetBuffer(SBIdx);
}
SafeFunction char *TrimWhiteSpace(char *str)
{
char *end;
while (*str == ' ')
str++;
if (*str == 0)
return str;
end = str + strlen(str) - 1;
while (end > str && *end == ' ')
end--;
*(end + 1) = 0;
return str;
}
CRData crashdata{};
SafeFunction void DisplayTopOverlay()
{
Video::ScreenBuffer *sb = Display->GetBuffer(SBIdx);
Video::Font *f = Display->GetCurrentFont();
Video::FontInfo fi = f->GetInfo();
for (uint32_t i = 0; i < sb->Width; i++)
for (uint32_t j = 0; j < fi.Height + 8; j++)
Display->SetPixel(i, j, 0x282828, SBIdx);
Display->SetBufferCursor(SBIdx, 8, (fi.Height + 8) / 6);
switch (SBIdx)
{
case 255:
{
EHPrint("\eAAAAAAMAIN \e606060DETAILS \e606060FRAMES \e606060TASKS \e606060CONSOLE");
break;
}
case 254:
{
EHPrint("\e606060MAIN \eAAAAAADETAILS \e606060FRAMES \e606060TASKS \e606060CONSOLE");
break;
}
case 253:
{
EHPrint("\e606060MAIN \e606060DETAILS \eAAAAAAFRAMES \e606060TASKS \e606060CONSOLE");
break;
}
case 252:
{
EHPrint("\e606060MAIN \e606060DETAILS \e606060FRAMES \eAAAAAATASKS \e606060CONSOLE");
break;
}
case 251:
{
EHPrint("\e606060MAIN \e606060DETAILS \e606060FRAMES \e606060TASKS \eAAAAAACONSOLE");
break;
}
default:
{
EHPrint("\e606060MAIN \e606060DETAILS \e606060FRAMES \e606060TASKS \e606060CONSOLE");
break;
}
}
EHPrint(" \e00AAFF%ld MiB / %ld MiB (%ld MiB Reserved)",
TO_MiB(KernelAllocator.GetUsedMemory()),
TO_MiB(KernelAllocator.GetTotalMemory()),
TO_MiB(KernelAllocator.GetReservedMemory()));
EHPrint(" \eAA0F0F%s", CPU::Hypervisor());
EHPrint(" \eAAF00F%s", CPU::Vendor());
EHPrint(" \eAA00FF%s", CPU::Name());
Display->SetBufferCursor(SBIdx, 0, fi.Height + 10);
/* https://imgflip.com/i/77slbl */
if ((Random::rand32() % 100) >= 98)
{
debug("Easter egg activated!");
int BaseXOffset = sb->Width - 14;
int BaseYOffset = 8;
Display->SetPixel(BaseXOffset + 3, BaseYOffset + 0, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 4, BaseYOffset + 0, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 6, BaseYOffset + 0, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 7, BaseYOffset + 0, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 2, BaseYOffset + 1, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 3, BaseYOffset + 1, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 4, BaseYOffset + 1, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 5, BaseYOffset + 1, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 6, BaseYOffset + 1, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 7, BaseYOffset + 1, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 8, BaseYOffset + 1, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 1, BaseYOffset + 2, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 2, BaseYOffset + 2, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 3, BaseYOffset + 2, 0xFFFFFF, SBIdx);
Display->SetPixel(BaseXOffset + 4, BaseYOffset + 2, 0x000000, SBIdx);
Display->SetPixel(BaseXOffset + 5, BaseYOffset + 2, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 6, BaseYOffset + 2, 0xFFFFFF, SBIdx);
Display->SetPixel(BaseXOffset + 7, BaseYOffset + 2, 0x000000, SBIdx);
Display->SetPixel(BaseXOffset + 8, BaseYOffset + 2, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 1, BaseYOffset + 3, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 2, BaseYOffset + 3, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 3, BaseYOffset + 3, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 4, BaseYOffset + 3, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 5, BaseYOffset + 3, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 6, BaseYOffset + 3, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 7, BaseYOffset + 3, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 0, BaseYOffset + 4, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 1, BaseYOffset + 4, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 2, BaseYOffset + 4, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 3, BaseYOffset + 4, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 4, BaseYOffset + 4, 0xA84832, SBIdx);
Display->SetPixel(BaseXOffset + 5, BaseYOffset + 4, 0xA84832, SBIdx);
Display->SetPixel(BaseXOffset + 6, BaseYOffset + 4, 0xA84832, SBIdx);
Display->SetPixel(BaseXOffset + 7, BaseYOffset + 4, 0xA84832, SBIdx);
Display->SetPixel(BaseXOffset + 0, BaseYOffset + 5, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 1, BaseYOffset + 5, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 2, BaseYOffset + 5, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 3, BaseYOffset + 5, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 4, BaseYOffset + 5, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 5, BaseYOffset + 5, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 6, BaseYOffset + 5, 0x21852E, SBIdx);
Display->SetPixel(BaseXOffset + 0, BaseYOffset + 6, 0x1216FF, SBIdx);
Display->SetPixel(BaseXOffset + 1, BaseYOffset + 6, 0x1216FF, SBIdx);
Display->SetPixel(BaseXOffset + 2, BaseYOffset + 6, 0x1216FF, SBIdx);
Display->SetPixel(BaseXOffset + 3, BaseYOffset + 6, 0x1216FF, SBIdx);
Display->SetPixel(BaseXOffset + 4, BaseYOffset + 6, 0x1216FF, SBIdx);
Display->SetPixel(BaseXOffset + 5, BaseYOffset + 6, 0x1216FF, SBIdx);
Display->SetPixel(BaseXOffset + 6, BaseYOffset + 6, 0x1216FF, SBIdx);
Display->SetBuffer(SBIdx);
}
}
SafeFunction void DisplayBottomOverlay()
{
Video::ScreenBuffer *sb = Display->GetBuffer(SBIdx);
Video::Font *f = Display->GetCurrentFont();
Video::FontInfo fi = f->GetInfo();
for (uint32_t i = 0; i < sb->Width; i++)
for (uint32_t j = sb->Height - fi.Height - 8; j < sb->Height; j++)
Display->SetPixel(i, j, 0x282828, SBIdx);
Display->SetBufferCursor(SBIdx, 8, sb->Height - fi.Height - 4);
EHPrint("\eAAAAAA> \eFAFAFA");
}
SafeFunction void ArrowInput(uint8_t key)
{
switch (key)
{
case KEY_D_UP:
if (SBIdx < 255)
SBIdx++;
else
return;
break;
case KEY_D_LEFT:
if (SBIdx < 255)
SBIdx++;
else
return;
break;
case KEY_D_RIGHT:
if (SBIdx > 251)
SBIdx--;
else
return;
break;
case KEY_D_DOWN:
if (SBIdx > 251)
SBIdx--;
else
return;
break;
default:
break;
}
Display->ClearBuffer(SBIdx);
DisplayTopOverlay();
EHPrint("\eFAFAFA");
switch (SBIdx)
{
case 255:
{
DisplayMainScreen(crashdata);
break;
}
case 254:
{
DisplayDetailsScreen(crashdata);
break;
}
case 253:
{
DisplayStackFrameScreen(crashdata);
break;
}
case 252:
{
DisplayTasksScreen(crashdata);
break;
}
case 251:
{
DisplayConsoleScreen(crashdata);
break;
}
default:
{
break;
}
}
DisplayBottomOverlay();
Display->SetBuffer(SBIdx);
}
SafeFunction void UserInput(char *Input)
{
SmartCriticalSection(UserInputLock);
Display->ClearBuffer(SBIdx);
DisplayTopOverlay();
EHPrint("\eFAFAFA");
if (strcmp(Input, "help") == 0)
{
EHPrint("Available commands are:\n");
EHPrint("exit - Shutdown the OS.\n");
EHPrint("reboot - Reboot the OS.\n");
EHPrint("help - Display this help message.\n");
EHPrint("showbuf,sb <INDEX> - Display the contents of a screen buffer.\n");
EHPrint(" - A sleep timer will be enabled. This will cause the OS to sleep for an unknown amount of time.\n");
EHPrint("ifr <COUNT> - Show interrupt frames.\n");
EHPrint("tlb <ADDRESS> - Print the page table entries\n");
EHPrint("bitmap - Print the memory bitmap\n");
EHPrint("mem - Print the memory allocation\n");
EHPrint("cr<INDEX> - Print the CPU control register\n");
EHPrint("tss <CORE> - Print the CPU task state segment\n");
EHPrint("dump <ADDRESS HEX> <LENGTH DEC> - Dump memory\n");
EHPrint("uartmemdmp <INDEX> <SKIP INACCESSIBLE (bool 0,1)> - Dump the memory of a UART.\n");
EHPrint("main - Show the main screen.\n");
EHPrint("details - Show the details screen.\n");
EHPrint("frames - Show the stack frame screen.\n");
EHPrint("tasks - Show the tasks screen.\n");
EHPrint("console - Show the console screen.\n");
EHPrint("Also, you can use the arrow keys to navigate between the screens.\n");
EHPrint("=========================================================================\n");
EHPrint("Kernel Compiled at: %s %s with C++ Standard: %d\n", __DATE__, __TIME__, CPP_LANGUAGE_STANDARD);
EHPrint("C++ Language Version (__cplusplus): %ld\n", __cplusplus);
}
else if (strcmp(Input, "exit") == 0)
{
PowerManager->Shutdown();
EHPrint("\eFFFFFFNow it's safe to turn off your computer.");
Display->SetBuffer(SBIdx);
CPU::Stop();
}
else if (strcmp(Input, "reboot") == 0)
{
PowerManager->Reboot();
EHPrint("\eFFFFFFNow it's safe to reboot your computer.");
Display->SetBuffer(SBIdx);
CPU::Stop();
}
else if (strncmp(Input, "showbuf", 7) == 0 || strncmp(Input, "sb", 2) == 0)
{
char *arg = TrimWhiteSpace(Input + 7);
int tmpidx = SBIdx;
SBIdx = atoi(arg);
Display->SetBuffer(SBIdx);
#if defined(a86)
for (int i = 0; i < 5000000; i++)
inb(0x80);
#endif // a64 || a32
SBIdx = tmpidx;
Display->SetBuffer(SBIdx);
}
else if (strncmp(Input, "ifr", 3) == 0)
{
char *arg = TrimWhiteSpace(Input + 3);
int CountI = atoi(arg);
int TotalCount = sizeof(EHIntFrames) / sizeof(EHIntFrames[0]);
debug("Printing %ld interrupt frames.", CountI);
if (CountI > TotalCount)
{
EHPrint("\eFF4400Count too big! Maximum allowed is %ld\eFAFAFA\n", TotalCount);
Display->SetBuffer(SBIdx);
}
else
{
for (int i = 0; i < CountI; i++)
{
if (EHIntFrames[i])
{
if (!Memory::Virtual().Check(EHIntFrames[i]))
continue;
EHPrint("\n\e2565CC%p", EHIntFrames[i]);
EHPrint("\e7925CC-");
#if defined(a64)
if ((uintptr_t)EHIntFrames[i] >= 0xFFFFFFFF80000000 && (uintptr_t)EHIntFrames[i] <= (uintptr_t)&_kernel_end)
#elif defined(a32)
if ((uintptr_t)EHIntFrames[i] >= 0xC0000000 && (uintptr_t)EHIntFrames[i] <= (uintptr_t)&_kernel_end)
#elif defined(aa64)
if ((uintptr_t)EHIntFrames[i] >= 0xFFFFFFFF80000000 && (uintptr_t)EHIntFrames[i] <= (uintptr_t)&_kernel_end)
#endif
EHPrint("\e25CCC9%s", KernelSymbolTable->GetSymbol((uintptr_t)EHIntFrames[i]));
else
EHPrint("\eFF4CA9Outside Kernel");
#if defined(a86)
for (int i = 0; i < 20000; i++)
inb(0x80);
#endif // a64 || a32
Display->SetBuffer(SBIdx);
}
}
}
}
else if (strncmp(Input, "tlb", 3) == 0)
{
char *arg = TrimWhiteSpace(Input + 3);
uintptr_t Address = NULL;
Address = strtol(arg, NULL, 16);
debug("Converted %s to %#lx", arg, Address);
Memory::PageTable *BasePageTable = (Memory::PageTable *)Address;
if (Memory::Virtual().Check(BasePageTable))
{
for (int PMLIndex = 0; PMLIndex < 512; PMLIndex++)
{
#if defined(a64)
Memory::PageMapLevel4 PML4 = BasePageTable->Entries[PMLIndex];
EHPrint("\e888888# \eAABBCC%03d-%03d-%03d-%03d\e4500F5: P:%s RW:%s US:%s PWT:%s PCB:%s A:%s NX:%s Address:\e888888%#lx\n",
PMLIndex, 0, 0, 0,
PML4.Present ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PML4.ReadWrite ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PML4.UserSupervisor ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PML4.WriteThrough ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PML4.CacheDisable ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PML4.Accessed ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PML4.ExecuteDisable ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PML4.GetAddress() << 12);
Display->SetBuffer(SBIdx);
if (PML4.Present)
{
Memory::PageDirectoryPointerTableEntryPtr *PDPTE = (Memory::PageDirectoryPointerTableEntryPtr *)((uintptr_t)PML4.GetAddress() << 12);
if (PDPTE)
{
for (int PDPTEIndex = 0; PDPTEIndex < 512; PDPTEIndex++)
{
EHPrint("\e888888# \eAABBCC%03d-%03d-%03d-%03d\e4500F5: P:%s RW:%s US:%s PWT:%s PCB:%s A:%s NX:%s Address:\e888888%#lx\n",
PMLIndex, PDPTEIndex, 0, 0,
PDPTE->Entries[PDPTEIndex].Present ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PDPTE->Entries[PDPTEIndex].ReadWrite ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PDPTE->Entries[PDPTEIndex].UserSupervisor ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PDPTE->Entries[PDPTEIndex].WriteThrough ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PDPTE->Entries[PDPTEIndex].CacheDisable ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PDPTE->Entries[PDPTEIndex].Accessed ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PDPTE->Entries[PDPTEIndex].ExecuteDisable ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PDPTE->Entries[PDPTEIndex].GetAddress() << 12);
Display->SetBuffer(SBIdx);
if ((PDPTE->Entries[PDPTEIndex].Present))
{
Memory::PageDirectoryEntryPtr *PDE = (Memory::PageDirectoryEntryPtr *)((uintptr_t)PDPTE->Entries[PDPTEIndex].GetAddress() << 12);
if (PDE)
{
for (int PDEIndex = 0; PDEIndex < 512; PDEIndex++)
{
EHPrint("\e888888# \eAABBCC%03d-%03d-%03d-%03d\e4500F5: P:%s RW:%s US:%s PWT:%s PCB:%s A:%s NX:%s Address:\e888888%#lx\n",
PMLIndex, PDPTEIndex, PDEIndex, 0,
PDE->Entries[PDEIndex].Present ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PDE->Entries[PDEIndex].ReadWrite ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PDE->Entries[PDEIndex].UserSupervisor ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PDE->Entries[PDEIndex].WriteThrough ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PDE->Entries[PDEIndex].CacheDisable ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PDE->Entries[PDEIndex].Accessed ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PDE->Entries[PDEIndex].ExecuteDisable ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PDE->Entries[PDEIndex].GetAddress() << 12);
Display->SetBuffer(SBIdx);
if ((PDE->Entries[PDEIndex].Present))
{
Memory::PageTableEntryPtr *PTE = (Memory::PageTableEntryPtr *)((uintptr_t)PDE->Entries[PDEIndex].GetAddress() << 12);
if (PTE)
{
for (int PTEIndex = 0; PTEIndex < 512; PTEIndex++)
{
EHPrint("\e888888# \eAABBCC%03d-%03d-%03d-%03d\e4500F5: P:%s RW:%s US:%s PWT:%s PCB:%s A:%s D:%s PAT:%s G:%s PK:%d NX:%s Address:\e888888%#lx\n",
PMLIndex, PDPTEIndex, PDEIndex, PTEIndex,
PTE->Entries[PTEIndex].Present ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PTE->Entries[PTEIndex].ReadWrite ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PTE->Entries[PTEIndex].UserSupervisor ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PTE->Entries[PTEIndex].WriteThrough ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PTE->Entries[PTEIndex].CacheDisable ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PTE->Entries[PTEIndex].Accessed ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PTE->Entries[PTEIndex].Dirty ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PTE->Entries[PTEIndex].PageAttributeTable ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PTE->Entries[PTEIndex].Global ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PTE->Entries[PTEIndex].ProtectionKey,
PTE->Entries[PTEIndex].ExecuteDisable ? "\e00FF001\e4500F5" : "\eFF00000\e4500F5",
PTE->Entries[PTEIndex].GetAddress() << 12);
Display->SetBuffer(SBIdx);
}
}
}
}
}
}
}
}
}
#endif
}
}
}
else if (strncmp(Input, "bitmap", 6) == 0)
{
Bitmap bm = KernelAllocator.GetPageBitmap();
EHPrint("\n\eFAFAFA[0%%] %08ld: ", 0);
for (size_t i = 0; i < bm.Size; i++)
{
if (bm.Get(i))
EHPrint("\eFF00001");
else
EHPrint("\e00FF000");
if (i % 128 == 127)
{
short Percentage = s_cst(short, (i * 100) / bm.Size);
EHPrint("\n\eFAFAFA[%03ld%%] %08ld: ", Percentage, i);
Display->SetBuffer(SBIdx);
}
}
EHPrint("\n\e22AA44--- END OF BITMAP ---\nBitmap size: %ld\n\n.", bm.Size);
Display->SetBuffer(SBIdx);
}
else if (strcmp(Input, "mem") == 0)
{
uint64_t Total = KernelAllocator.GetTotalMemory();
uint64_t Used = KernelAllocator.GetUsedMemory();
uint64_t Free = KernelAllocator.GetFreeMemory();
uint64_t Reserved = KernelAllocator.GetReservedMemory();
EHPrint("\e22AA44Total: %ld bytes\n\eFF0000Used: %ld bytes\n\e00FF00Free: %ld bytes\n\eFF00FFReserved: %ld bytes\n", Total, Used, Free, Reserved);
int Progress = s_cst(int, (Used * 100) / Total);
int ReservedProgress = s_cst(int, (Reserved * 100) / Total);
EHPrint("\e22AA44%3d%% \eCCCCCC[", Progress);
for (int i = 0; i < Progress; i++)
EHPrint("\eFF0000|");
for (int i = 0; i < 100 - Progress; i++)
EHPrint("\e00FF00|");
for (int i = 0; i < ReservedProgress; i++)
EHPrint("\eFF00FF|");
EHPrint("\eCCCCCC]\n");
Display->SetBuffer(SBIdx);
}
else if (strncmp(Input, "cr", 2) == 0)
{
char *cr = TrimWhiteSpace(Input + 2);
switch (cr[0])
{
case '0':
{
#if defined(a64)
EHPrint("\e44AA000: %#lx\n", CPU::x64::readcr0());
#elif defined(a32)
EHPrint("\e44AA000: %#lx\n", CPU::x32::readcr0());
#endif
break;
}
case '2':
{
#if defined(a64)
EHPrint("\e44AA002: %#lx\n", PageFaultAddress);
#elif defined(a32)
EHPrint("\e44AA002: %#lx\n", CPU::x32::readcr2());
#endif
break;
}
case '3':
{
#if defined(a64)
EHPrint("\e44AA003: %#lx\n", CPU::x64::readcr3());
#elif defined(a32)
EHPrint("\e44AA003: %#lx\n", CPU::x32::readcr3());
#endif
break;
}
case '4':
{
#if defined(a64)
EHPrint("\e44AA004: %#lx\n", CPU::x64::readcr4());
#elif defined(a32)
EHPrint("\e44AA004: %#lx\n", CPU::x32::readcr4());
#endif
break;
}
case '8':
{
#if defined(a64)
EHPrint("\e44AA008: %#lx\n", CPU::x64::readcr8());
#elif defined(a32)
EHPrint("\e44AA008: %#lx\n", CPU::x32::readcr8());
#endif
break;
}
default:
EHPrint("\eFF0000Invalid CR\n");
break;
}
}
else if (strncmp(Input, "tss", 3) == 0)
{
char *arg = TrimWhiteSpace(Input + 3);
int TSSIndex = atoi(arg);
if (TSSIndex > SMP::CPUCores)
{
EHPrint("\eFF0000Invalid TSS index\n");
}
else
{
#if defined(a86)
GlobalDescriptorTable::TaskStateSegment tss = GlobalDescriptorTable::tss[TSSIndex];
EHPrint("\eFAFAFAStack Pointer 0: \eAABB22%#lx\n", tss.StackPointer[0]);
EHPrint("\eFAFAFAStack Pointer 1: \eAABB22%#lx\n", tss.StackPointer[1]);
EHPrint("\eFAFAFAStack Pointer 2: \eAABB22%#lx\n", tss.StackPointer[2]);
EHPrint("\eFAFAFAInterrupt Stack Table: \eAABB22%#lx\n", tss.InterruptStackTable[0]);
EHPrint("\eFAFAFAInterrupt Stack Table: \eAABB22%#lx\n", tss.InterruptStackTable[1]);
EHPrint("\eFAFAFAInterrupt Stack Table: \eAABB22%#lx\n", tss.InterruptStackTable[2]);
EHPrint("\eFAFAFAInterrupt Stack Table: \eAABB22%#lx\n", tss.InterruptStackTable[3]);
EHPrint("\eFAFAFAInterrupt Stack Table: \eAABB22%#lx\n", tss.InterruptStackTable[4]);
EHPrint("\eFAFAFAInterrupt Stack Table: \eAABB22%#lx\n", tss.InterruptStackTable[5]);
EHPrint("\eFAFAFAInterrupt Stack Table: \eAABB22%#lx\n", tss.InterruptStackTable[6]);
EHPrint("\eFAFAFAI/O Map Base Address Offset: \eAABB22%#lx\n", tss.IOMapBaseAddressOffset);
EHPrint("\eFAFAFAReserved 0: \eAABB22%#lx\n", tss.Reserved0);
EHPrint("\eFAFAFAReserved 1: \eAABB22%#lx\n", tss.Reserved1);
EHPrint("\eFAFAFAReserved 2: \eAABB22%#lx\n", tss.Reserved2);
#elif defined(aa64)
EHPrint("\eFF0000AArch64 does not have TSS\n");
#endif
}
}
else if (strncmp(Input, "dump", 4) == 0)
{
char *arg = TrimWhiteSpace(Input + 4);
char *addr = strtok(arg, " ");
char *len = strtok(NULL, " ");
if (addr == NULL || len == NULL)
{
EHPrint("\eFF0000Invalid arguments\n");
}
else
{
uintptr_t Address = strtoul(addr, NULL, 16);
size_t Length = strtoul(len, NULL, 10);
size_t ActualLength = Length;
uintptr_t AlignedAddress = ROUND_DOWN(Address, PAGE_SIZE);
{
Memory::Virtual vmm;
for (uintptr_t adr = AlignedAddress;
adr < Address + Length;
adr += PAGE_SIZE)
{
if (!vmm.Check((void *)adr))
{
EHPrint("\eFFA500Address %#lx is not mapped\n", adr);
Display->SetBuffer(SBIdx);
ActualLength -= PAGE_SIZE;
}
}
}
debug("Dumping %ld bytes from %#lx\n", ActualLength, AlignedAddress);
EHDumpData((void *)AlignedAddress, (unsigned long)ActualLength);
}
}
else if (strncmp(Input, "uartmemdmp", 10) == 0)
{
char *arg = TrimWhiteSpace(Input + 10);
char *cPort = strtok(arg, " ");
char *cBoolSkip = strtok(NULL, " ");
UniversalAsynchronousReceiverTransmitter::SerialPorts port = UniversalAsynchronousReceiverTransmitter::SerialPorts::COM1;
switch (cPort[0])
{
case '1':
port = UniversalAsynchronousReceiverTransmitter::SerialPorts::COM1;
break;
case '2':
port = UniversalAsynchronousReceiverTransmitter::SerialPorts::COM2;
break;
case '3':
port = UniversalAsynchronousReceiverTransmitter::SerialPorts::COM3;
break;
case '4':
port = UniversalAsynchronousReceiverTransmitter::SerialPorts::COM4;
break;
case '5':
port = UniversalAsynchronousReceiverTransmitter::SerialPorts::COM5;
break;
case '6':
port = UniversalAsynchronousReceiverTransmitter::SerialPorts::COM6;
break;
case '7':
port = UniversalAsynchronousReceiverTransmitter::SerialPorts::COM7;
break;
case '8':
port = UniversalAsynchronousReceiverTransmitter::SerialPorts::COM8;
break;
default:
EHPrint("\eFF0000Invalid port! Defaulting to 1.\n");
break;
}
EHPrint("\eF8F8F8Dumping memory to UART port %c (%#lx) and %s inaccessible pages.\n", cPort[0], port, cBoolSkip[0] == '1' ? "skipping" : "zeroing");
Display->SetBuffer(SBIdx);
uint64_t TotalMemLength = KernelAllocator.GetTotalMemory();
uint64_t ProgressLength = TotalMemLength;
UniversalAsynchronousReceiverTransmitter::UART uart(port);
Memory::Virtual vmm;
uint8_t *Address = 0x0;
int Progress = 0;
for (size_t i = 0; i < TotalMemLength; i++)
{
if (vmm.Check(Address))
uart.Write(*Address);
else if (cBoolSkip[0] == '0')
uart.Write((uint8_t)0);
else
ProgressLength--;
Address++;
if (unlikely(i % 0x1000 == 0))
{
int NewProgress = (int)((i * 100) / ProgressLength);
if (unlikely(NewProgress != Progress))
{
Progress = NewProgress;
EHPrint("\n%d%%\n", Progress);
Display->SetBuffer(SBIdx);
}
Display->Print('.', SBIdx);
if (unlikely(i % 0x500 == 0))
Display->SetBuffer(SBIdx);
}
}
EHPrint("\nDone.\n");
}
else if (strcmp(Input, "main") == 0)
{
SBIdx = 255;
DisplayTopOverlay();
DisplayMainScreen(crashdata);
Display->SetBuffer(SBIdx);
}
else if (strcmp(Input, "details") == 0)
{
SBIdx = 254;
DisplayTopOverlay();
DisplayDetailsScreen(crashdata);
Display->SetBuffer(SBIdx);
}
else if (strcmp(Input, "frames") == 0)
{
SBIdx = 253;
DisplayTopOverlay();
DisplayStackFrameScreen(crashdata);
Display->SetBuffer(SBIdx);
}
else if (strcmp(Input, "tasks") == 0)
{
SBIdx = 252;
DisplayTopOverlay();
DisplayTasksScreen(crashdata);
Display->SetBuffer(SBIdx);
}
else if (strcmp(Input, "console") == 0)
{
SBIdx = 251;
DisplayTopOverlay();
DisplayConsoleScreen(crashdata);
Display->SetBuffer(SBIdx);
}
else if (strlen(Input) > 0)
EHPrint("Unknown command: %s", Input);
DisplayBottomOverlay();
Display->SetBuffer(SBIdx);
}
SafeFunction void StopAllCores()
{
#if defined(a86)
/* FIXME: Can't send IPIs to other cores
* because it causes another exception on
* the other cores.
*
* Also it makes every core to stay at 100% usage for some reason.
*/
return;
if (SMP::CPUCores > 1)
{
APIC::InterruptCommandRegister icr{};
bool x2APIC = ((APIC::APIC *)Interrupts::apic[0])->x2APIC;
if (likely(x2APIC))
{
icr.x2.VEC = s_cst(uint8_t, CPU::x86::IRQ31);
icr.x2.MT = APIC::Fixed;
icr.x2.L = APIC::Assert;
for (int i = 1; i < SMP::CPUCores; i++)
{
icr.x2.DES = uint8_t(i);
((APIC::APIC *)Interrupts::apic[i])->ICR(icr);
}
}
else
{
icr.VEC = s_cst(uint8_t, CPU::x86::IRQ31);
icr.MT = APIC::Fixed;
icr.L = APIC::Assert;
for (int i = 1; i < SMP::CPUCores; i++)
{
icr.DES = uint8_t(i);
((APIC::APIC *)Interrupts::apic[i])->ICR(icr);
}
}
CPU::Interrupts(CPU::Disable);
}
#elif defined(aa64)
#endif
}
SafeFunction inline bool Handle_x86_64(CHArchTrapFrame *Frame)
{
#ifdef a64
trace("Exception at %s",
KernelSymbolTable
? KernelSymbolTable->GetSymbol(Frame->rip)
: "No symbol");
for (size_t i = 0; i < INT_FRAMES_MAX; i++)
EHIntFrames[i] = Interrupts::InterruptFrames[i];
PageFaultAddress = CPU::x64::readcr2().PFLA;
if (unlikely(Frame->cs != GDT_USER_CODE &&
Frame->cs != GDT_USER_DATA))
{
if (PageFaultAddress)
{
debug("Exception in kernel mode (ip: %#lx cr2: %#lx (%s))",
Frame->rip, PageFaultAddress,
KernelSymbolTable ? KernelSymbolTable->GetSymbol(Frame->rip)
: "No symbol");
}
else
{
debug("Exception in kernel mode (ip: %#lx (%s))",
Frame->rip,
KernelSymbolTable ? KernelSymbolTable->GetSymbol(Frame->rip)
: "No symbol");
}
CPUData *data = GetCurrentCPU();
if (data)
{
if (data->CurrentThread)
{
if (!data->CurrentThread->Security.IsCritical)
{
fixme("Exception in non-critical thread (kernel mode)");
}
}
}
if (TaskManager)
TaskManager->Panic();
ForceUnlock = true;
Display->CreateBuffer(0, 0, SBIdx);
StopAllCores();
}
else
{
CPUData *data = GetCurrentCPU();
if (PageFaultAddress)
{
debug("Exception in user mode (ip: %#lx cr2: %#lx (%s))",
Frame->rip, PageFaultAddress,
data->CurrentProcess->ELFSymbolTable
? data->CurrentProcess->ELFSymbolTable->GetSymbol(Frame->rip)
: "No symbol");
}
else
{
debug("Exception in user mode (ip: %#lx (%s))",
Frame->rip,
data->CurrentProcess->ELFSymbolTable
? data->CurrentProcess->ELFSymbolTable->GetSymbol(Frame->rip)
: "No symbol");
}
if (UserModeExceptionHandler(Frame))
return true;
else if (DebuggerIsAttached)
asmv("int $0x8");
if (unlikely(data->CurrentThread->Security.IsCritical))
{
error("Critical thread \"%s\"(%d) died",
data->CurrentThread->Name,
data->CurrentThread->ID);
if (TaskManager)
TaskManager->Panic();
ForceUnlock = true;
Display->CreateBuffer(0, 0, SBIdx);
StopAllCores();
return false;
}
Tasking::TCB *tcb = data->CurrentThread;
CPU::Interrupts(CPU::Enable);
while (true)
{
tcb->GetContext()->Yield();
CPU::Halt(TaskManager->IsPanic());
}
}
#endif
return false;
}
SafeFunction inline bool Handle_x86_32(CHArchTrapFrame *Frame)
{
#ifdef a32
trace("Exception at %s",
KernelSymbolTable
? KernelSymbolTable->GetSymbol(Frame->eip)
: "No symbol");
for (size_t i = 0; i < INT_FRAMES_MAX; i++)
EHIntFrames[i] = Interrupts::InterruptFrames[i];
PageFaultAddress = CPU::x32::readcr2().PFLA;
if (Frame->cs != GDT_USER_CODE && Frame->cs != GDT_USER_DATA)
{
CPUData *data = GetCurrentCPU();
if (PageFaultAddress)
{
debug("Exception in kernel mode (ip: %#lx cr2: %#lx (%s))",
Frame->eip, PageFaultAddress,
data->CurrentProcess->ELFSymbolTable
? data->CurrentProcess->ELFSymbolTable->GetSymbol(Frame->eip)
: "No symbol");
}
else
{
debug("Exception in kernel mode (ip: %#lx (%s))",
Frame->eip,
data->CurrentProcess->ELFSymbolTable
? data->CurrentProcess->ELFSymbolTable->GetSymbol(Frame->eip)
: "No symbol");
}
if (UserModeExceptionHandler(Frame))
return true;
else if (DebuggerIsAttached)
asmv("int $0x8");
if (data->CurrentThread)
{
if (!data->CurrentThread->Security.IsCritical)
{
fixme("Exception in non-critical thread (kernel mode)");
}
}
if (TaskManager)
TaskManager->Panic();
ForceUnlock = true;
Display->CreateBuffer(0, 0, SBIdx);
StopAllCores();
}
else
{
CPUData *data = GetCurrentCPU();
if (PageFaultAddress)
{
debug("Exception in user mode (ip: %#lx cr2: %#lx (%s))",
Frame->eip, PageFaultAddress,
KernelSymbolTable ? KernelSymbolTable->GetSymbol(Frame->eip)
: "No symbol");
}
else
{
debug("Exception in user mode (ip: %#lx (%s))",
Frame->eip,
KernelSymbolTable ? KernelSymbolTable->GetSymbol(Frame->eip)
: "No symbol");
}
if (UserModeExceptionHandler(Frame))
return true;
else if (DebuggerIsAttached)
asmv("int $0x8");
if (unlikely(data->CurrentThread->Security.IsCritical))
{
error("Critical thread \"%s\"(%d) died",
data->CurrentThread->Name,
data->CurrentThread->ID);
if (TaskManager)
TaskManager->Panic();
ForceUnlock = true;
Display->CreateBuffer(0, 0, SBIdx);
StopAllCores();
return false;
}
Tasking::TCB *tcb = data->CurrentThread;
CPU::Interrupts(CPU::Enable);
while (true)
{
tcb->GetContext()->Yield();
CPU::Halt(TaskManager->IsPanic());
}
}
#endif
return false;
}
SafeFunction inline void Print_x86_64(CHArchTrapFrame *Frame)
{
#ifdef a64
CPU::x64::CR0 cr0 = CPU::x64::readcr0();
CPU::x64::CR2 cr2 = CPU::x64::CR2{.PFLA = PageFaultAddress};
CPU::x64::CR3 cr3 = CPU::x64::readcr3();
CPU::x64::CR4 cr4 = CPU::x64::readcr4();
CPU::x64::CR8 cr8 = CPU::x64::readcr8();
CPU::x64::EFER efer;
efer.raw = CPU::x64::rdmsr(CPU::x64::MSR_EFER);
uintptr_t ds;
asmv("mov %%ds, %0"
: "=r"(ds));
EHPrint("\eFF2525FS=%#lx GS=%#lx SS=%#lx CS=%#lx DS=%#lx\n",
CPU::x64::rdmsr(CPU::x64::MSR_FS_BASE),
CPU::x64::rdmsr(CPU::x64::MSR_GS_BASE),
Frame->ss, Frame->cs, ds);
EHPrint("R8=%#lx R9=%#lx R10=%#lx R11=%#lx\n",
Frame->r8, Frame->r9, Frame->r10, Frame->r11);
EHPrint("R12=%#lx R13=%#lx R14=%#lx R15=%#lx\n",
Frame->r12, Frame->r13, Frame->r14, Frame->r15);
EHPrint("RAX=%#lx RBX=%#lx RCX=%#lx RDX=%#lx\n",
Frame->rax, Frame->rbx, Frame->rcx, Frame->rdx);
EHPrint("RSI=%#lx RDI=%#lx RBP=%#lx RSP=%#lx\n",
Frame->rsi, Frame->rdi, Frame->rbp, Frame->rsp);
EHPrint("RIP=%#lx RFL=%#lx INT=%#lx ERR=%#lx EFER=%#lx\n",
Frame->rip, Frame->rflags.raw, Frame->InterruptNumber, Frame->ErrorCode, efer.raw);
EHPrint("CR0=%#lx CR2=%#lx CR3=%#lx CR4=%#lx CR8=%#lx\n",
cr0.raw, cr2.raw, cr3.raw, cr4.raw, cr8.raw);
EHPrint("CR0: PE:%s MP:%s EM:%s TS:%s\n ET:%s NE:%s WP:%s AM:%s\n NW:%s CD:%s PG:%s\n R0:%#x R1:%#x R2:%#x\n",
cr0.PE ? "True " : "False", cr0.MP ? "True " : "False", cr0.EM ? "True " : "False", cr0.TS ? "True " : "False",
cr0.ET ? "True " : "False", cr0.NE ? "True " : "False", cr0.WP ? "True " : "False", cr0.AM ? "True " : "False",
cr0.NW ? "True " : "False", cr0.CD ? "True " : "False", cr0.PG ? "True " : "False",
cr0.Reserved0, cr0.Reserved1, cr0.Reserved2);
EHPrint("CR2: PFLA: %#lx\n",
cr2.PFLA);
EHPrint("CR3: PWT:%s PCD:%s PDBR:%#lx\n",
cr3.PWT ? "True " : "False", cr3.PCD ? "True " : "False", cr3.PDBR);
EHPrint("CR4: VME:%s PVI:%s TSD:%s DE:%s\n PSE:%s PAE:%s MCE:%s PGE:%s\n PCE:%s UMIP:%s OSFXSR:%s OSXMMEXCPT:%s\n LA57:%s VMXE:%s SMXE:%s PCIDE:%s\n OSXSAVE:%s SMEP:%s SMAP:%s PKE:%s\n R0:%#x R1:%#x R2:%#x\n",
cr4.VME ? "True " : "False", cr4.PVI ? "True " : "False", cr4.TSD ? "True " : "False", cr4.DE ? "True " : "False",
cr4.PSE ? "True " : "False", cr4.PAE ? "True " : "False", cr4.MCE ? "True " : "False", cr4.PGE ? "True " : "False",
cr4.PCE ? "True " : "False", cr4.UMIP ? "True " : "False", cr4.OSFXSR ? "True " : "False", cr4.OSXMMEXCPT ? "True " : "False",
cr4.LA57 ? "True " : "False", cr4.VMXE ? "True " : "False", cr4.SMXE ? "True " : "False", cr4.PCIDE ? "True " : "False",
cr4.OSXSAVE ? "True " : "False", cr4.SMEP ? "True " : "False", cr4.SMAP ? "True " : "False", cr4.PKE ? "True " : "False",
cr4.Reserved0, cr4.Reserved1, cr4.Reserved2);
EHPrint("CR8: TPL:%d\n", cr8.TPL);
EHPrint("RFL: CF:%s PF:%s AF:%s ZF:%s\n SF:%s TF:%s IF:%s DF:%s\n OF:%s IOPL:%s NT:%s RF:%s\n VM:%s AC:%s VIF:%s VIP:%s\n ID:%s AlwaysOne:%d\n R0:%#x R1:%#x R2:%#x R3:%#x\n",
Frame->rflags.CF ? "True " : "False", Frame->rflags.PF ? "True " : "False", Frame->rflags.AF ? "True " : "False", Frame->rflags.ZF ? "True " : "False",
Frame->rflags.SF ? "True " : "False", Frame->rflags.TF ? "True " : "False", Frame->rflags.IF ? "True " : "False", Frame->rflags.DF ? "True " : "False",
Frame->rflags.OF ? "True " : "False", Frame->rflags.IOPL ? "True " : "False", Frame->rflags.NT ? "True " : "False", Frame->rflags.RF ? "True " : "False",
Frame->rflags.VM ? "True " : "False", Frame->rflags.AC ? "True " : "False", Frame->rflags.VIF ? "True " : "False", Frame->rflags.VIP ? "True " : "False",
Frame->rflags.ID ? "True " : "False", Frame->rflags.AlwaysOne,
Frame->rflags.Reserved0, Frame->rflags.Reserved1, Frame->rflags.Reserved2, Frame->rflags.Reserved3);
EHPrint("EFER: SCE:%s LME:%s LMA:%s NXE:%s\n SVME:%s LMSLE:%s FFXSR:%s TCE:%s\n R0:%#x R1:%#x R2:%#x\n",
efer.SCE ? "True " : "False", efer.LME ? "True " : "False", efer.LMA ? "True " : "False", efer.NXE ? "True " : "False",
efer.SVME ? "True " : "False", efer.LMSLE ? "True " : "False", efer.FFXSR ? "True " : "False", efer.TCE ? "True " : "False",
efer.Reserved0, efer.Reserved1, efer.Reserved2);
#endif
}
SafeFunction inline void Print_x86_32(CHArchTrapFrame *Frame)
{
#ifdef a32
CPU::x32::CR0 cr0 = CPU::x32::readcr0();
CPU::x32::CR2 cr2 = CPU::x32::CR2{.PFLA = PageFaultAddress};
CPU::x32::CR3 cr3 = CPU::x32::readcr3();
CPU::x32::CR4 cr4 = CPU::x32::readcr4();
CPU::x32::CR8 cr8 = CPU::x32::readcr8();
uintptr_t ds;
asmv("mov %%ds, %0"
: "=r"(ds));
EHPrint("\eFF2525FS=%#x GS=%#x CS=%#x DS=%#x\n",
CPU::x32::rdmsr(CPU::x32::MSR_FS_BASE),
CPU::x32::rdmsr(CPU::x32::MSR_GS_BASE),
Frame->cs, ds);
EHPrint("EAX=%#x EBX=%#x ECX=%#x EDX=%#x\n",
Frame->eax, Frame->ebx, Frame->ecx, Frame->edx);
EHPrint("ESI=%#x EDI=%#x EBP=%#x ESP=%#x\n",
Frame->esi, Frame->edi, Frame->ebp, Frame->esp);
EHPrint("EIP=%#x EFL=%#x INT=%#x ERR=%#x\n",
Frame->eip, Frame->eflags.raw, Frame->InterruptNumber, Frame->ErrorCode);
EHPrint("CR0=%#x CR2=%#x CR3=%#x CR4=%#x CR8=%#x\n",
cr0.raw, cr2.raw, cr3.raw, cr4.raw, cr8.raw);
EHPrint("CR0: PE:%s MP:%s EM:%s TS:%s\n ET:%s NE:%s WP:%s AM:%s\n NW:%s CD:%s PG:%s\n R0:%#x R1:%#x R2:%#x\n",
cr0.PE ? "True " : "False", cr0.MP ? "True " : "False", cr0.EM ? "True " : "False", cr0.TS ? "True " : "False",
cr0.ET ? "True " : "False", cr0.NE ? "True " : "False", cr0.WP ? "True " : "False", cr0.AM ? "True " : "False",
cr0.NW ? "True " : "False", cr0.CD ? "True " : "False", cr0.PG ? "True " : "False",
cr0.Reserved0, cr0.Reserved1, cr0.Reserved2);
EHPrint("CR2: PFLA: %#x\n",
cr2.PFLA);
EHPrint("CR3: PWT:%s PCD:%s PDBR:%#x\n",
cr3.PWT ? "True " : "False", cr3.PCD ? "True " : "False", cr3.PDBR);
EHPrint("CR4: VME:%s PVI:%s TSD:%s DE:%s\n PSE:%s PAE:%s MCE:%s PGE:%s\n PCE:%s UMIP:%s OSFXSR:%s OSXMMEXCPT:%s\n LA57:%s VMXE:%s SMXE:%s PCIDE:%s\n OSXSAVE:%s SMEP:%s SMAP:%s PKE:%s\n R0:%#x R1:%#x\n",
cr4.VME ? "True " : "False", cr4.PVI ? "True " : "False", cr4.TSD ? "True " : "False", cr4.DE ? "True " : "False",
cr4.PSE ? "True " : "False", cr4.PAE ? "True " : "False", cr4.MCE ? "True " : "False", cr4.PGE ? "True " : "False",
cr4.PCE ? "True " : "False", cr4.UMIP ? "True " : "False", cr4.OSFXSR ? "True " : "False", cr4.OSXMMEXCPT ? "True " : "False",
cr4.LA57 ? "True " : "False", cr4.VMXE ? "True " : "False", cr4.SMXE ? "True " : "False", cr4.PCIDE ? "True " : "False",
cr4.OSXSAVE ? "True " : "False", cr4.SMEP ? "True " : "False", cr4.SMAP ? "True " : "False", cr4.PKE ? "True " : "False",
cr4.Reserved0, cr4.Reserved1);
EHPrint("CR8: TPL:%d\n", cr8.TPL);
EHPrint("RFL: CF:%s PF:%s AF:%s ZF:%s\n SF:%s TF:%s IF:%s DF:%s\n OF:%s IOPL:%s NT:%s RF:%s\n VM:%s AC:%s VIF:%s VIP:%s\n ID:%s AlwaysOne:%d\n R0:%#x R1:%#x R2:%#x\n",
Frame->eflags.CF ? "True " : "False", Frame->eflags.PF ? "True " : "False", Frame->eflags.AF ? "True " : "False", Frame->eflags.ZF ? "True " : "False",
Frame->eflags.SF ? "True " : "False", Frame->eflags.TF ? "True " : "False", Frame->eflags.IF ? "True " : "False", Frame->eflags.DF ? "True " : "False",
Frame->eflags.OF ? "True " : "False", Frame->eflags.IOPL ? "True " : "False", Frame->eflags.NT ? "True " : "False", Frame->eflags.RF ? "True " : "False",
Frame->eflags.VM ? "True " : "False", Frame->eflags.AC ? "True " : "False", Frame->eflags.VIF ? "True " : "False", Frame->eflags.VIP ? "True " : "False",
Frame->eflags.ID ? "True " : "False", Frame->eflags.AlwaysOne,
Frame->eflags.Reserved0, Frame->eflags.Reserved1, Frame->eflags.Reserved2);
#endif
}
SafeFunction void Handle(void *Data)
{
// TODO: SUPPORT SMP
CPU::Interrupts(CPU::Disable);
CHArchTrapFrame *Frame = (CHArchTrapFrame *)Data;
SBIdx = 255;
debug("-----------------------------------------------------------------------------------");
debug("%ld MiB / %ld MiB (%ld MiB Reserved)",
TO_MiB(KernelAllocator.GetUsedMemory()),
TO_MiB(KernelAllocator.GetTotalMemory()),
TO_MiB(KernelAllocator.GetReservedMemory()));
error("Exception: %#x", Frame->InterruptNumber);
#if defined(a64)
if (Handle_x86_64(Frame))
#elif defined(a32)
if (Handle_x86_32(Frame))
#endif
return;
if (ExceptionOccurred)
{
SBIdx = 255;
Display->ClearBuffer(SBIdx);
Display->SetBufferCursor(SBIdx, 0, 0);
#if defined(a64)
Print_x86_64(Frame);
#elif defined(a32)
Print_x86_32(Frame);
#endif
EHPrint("\nException occurred while handling exception! HALTED!");
Display->SetBuffer(SBIdx);
Interrupts::RemoveAll();
CPU::Stop();
}
ExceptionOccurred = true;
if (DriverManager)
DriverManager->Panic();
debug("Reading control registers...");
crashdata.Frame = Frame;
#if defined(a64)
crashdata.cr0 = CPU::x64::readcr0();
crashdata.cr2 = CPU::x64::CR2{.PFLA = PageFaultAddress};
crashdata.cr3 = CPU::x64::readcr3();
crashdata.cr4 = CPU::x64::readcr4();
crashdata.cr8 = CPU::x64::readcr8();
crashdata.efer.raw = CPU::x64::rdmsr(CPU::x64::MSR_EFER);
#elif defined(a32)
crashdata.cr0 = CPU::x32::readcr0();
crashdata.cr2 = CPU::x32::CR2{.PFLA = PageFaultAddress};
crashdata.cr3 = CPU::x32::readcr3();
crashdata.cr4 = CPU::x32::readcr4();
crashdata.cr8 = CPU::x32::readcr8();
#endif
uintptr_t ds;
asmv("mov %%ds, %0"
: "=r"(ds));
// Get debug registers
#ifdef a64
asmv("movq %%dr0, %0"
: "=r"(crashdata.dr0));
asmv("movq %%dr1, %0"
: "=r"(crashdata.dr1));
asmv("movq %%dr2, %0"
: "=r"(crashdata.dr2));
asmv("movq %%dr3, %0"
: "=r"(crashdata.dr3));
asmv("movq %%dr6, %0"
: "=r"(crashdata.dr6.raw));
asmv("movq %%dr7, %0"
: "=r"(crashdata.dr7.raw));
#endif
CPUData *cpudata = GetCurrentCPU();
if (cpudata == nullptr)
{
EHPrint("\eFFA500Invalid CPU data!\n");
for (long i = 0; i < MAX_CPU; i++)
{
cpudata = GetCPU(i);
if (cpudata != nullptr)
break;
if (i == MAX_CPU - 1)
{
EHPrint("\eFF0000No CPU data found!\n");
cpudata = nullptr;
}
}
debug("CPU ptr %#lx", cpudata);
}
if (cpudata != nullptr)
{
crashdata.ID = cpudata->ID;
crashdata.CPUData = cpudata;
error("Technical Informations on CPU %d:", cpudata->ID);
}
if (TaskManager && cpudata != nullptr)
{
crashdata.Process = cpudata->CurrentProcess.load();
crashdata.Thread = cpudata->CurrentThread.load();
error("Current Process: %s(%ld)",
cpudata->CurrentProcess->Name,
cpudata->CurrentProcess->ID);
error("Current Thread: %s(%ld)",
cpudata->CurrentThread->Name,
cpudata->CurrentThread->ID);
}
{
#if defined(a64)
error("FS=%#llx GS=%#llx SS=%#llx CS=%#llx DS=%#llx",
CPU::x64::rdmsr(CPU::x64::MSR_FS_BASE), CPU::x64::rdmsr(CPU::x64::MSR_GS_BASE),
Frame->ss, Frame->cs, ds);
error("R8=%#llx R9=%#llx R10=%#llx R11=%#llx", Frame->r8, Frame->r9, Frame->r10, Frame->r11);
error("R12=%#llx R13=%#llx R14=%#llx R15=%#llx", Frame->r12, Frame->r13, Frame->r14, Frame->r15);
error("RAX=%#llx RBX=%#llx RCX=%#llx RDX=%#llx", Frame->rax, Frame->rbx, Frame->rcx, Frame->rdx);
error("RSI=%#llx RDI=%#llx RBP=%#llx RSP=%#llx", Frame->rsi, Frame->rdi, Frame->rbp, Frame->rsp);
error("RIP=%#llx RFL=%#llx INT=%#llx ERR=%#llx EFER=%#llx", Frame->rip, Frame->rflags.raw, Frame->InterruptNumber, Frame->ErrorCode, crashdata.efer.raw);
error("CR0=%#llx CR2=%#llx CR3=%#llx CR4=%#llx CR8=%#llx", crashdata.cr0.raw, crashdata.cr2.raw, crashdata.cr3.raw, crashdata.cr4.raw, crashdata.cr8.raw);
error("DR0=%#llx DR1=%#llx DR2=%#llx DR3=%#llx DR6=%#llx DR7=%#llx", crashdata.dr0, crashdata.dr1, crashdata.dr2, crashdata.dr3, crashdata.dr6.raw, crashdata.dr7.raw);
error("CR0: PE:%s MP:%s EM:%s TS:%s ET:%s NE:%s WP:%s AM:%s NW:%s CD:%s PG:%s R0:%#x R1:%#x R2:%#x",
crashdata.cr0.PE ? "True " : "False", crashdata.cr0.MP ? "True " : "False", crashdata.cr0.EM ? "True " : "False", crashdata.cr0.TS ? "True " : "False",
crashdata.cr0.ET ? "True " : "False", crashdata.cr0.NE ? "True " : "False", crashdata.cr0.WP ? "True " : "False", crashdata.cr0.AM ? "True " : "False",
crashdata.cr0.NW ? "True " : "False", crashdata.cr0.CD ? "True " : "False", crashdata.cr0.PG ? "True " : "False",
crashdata.cr0.Reserved0, crashdata.cr0.Reserved1, crashdata.cr0.Reserved2);
error("CR2: PFLA: %#llx",
crashdata.cr2.PFLA);
error("CR3: PWT:%s PCD:%s PDBR:%#llx",
crashdata.cr3.PWT ? "True " : "False", crashdata.cr3.PCD ? "True " : "False", crashdata.cr3.PDBR);
error("CR4: VME:%s PVI:%s TSD:%s DE:%s PSE:%s PAE:%s MCE:%s PGE:%s PCE:%s UMIP:%s OSFXSR:%s OSXMMEXCPT:%s LA57:%s VMXE:%s SMXE:%s PCIDE:%s OSXSAVE:%s SMEP:%s SMAP:%s PKE:%s R0:%#x R1:%#x R2:%#x",
crashdata.cr4.VME ? "True " : "False", crashdata.cr4.PVI ? "True " : "False", crashdata.cr4.TSD ? "True " : "False", crashdata.cr4.DE ? "True " : "False",
crashdata.cr4.PSE ? "True " : "False", crashdata.cr4.PAE ? "True " : "False", crashdata.cr4.MCE ? "True " : "False", crashdata.cr4.PGE ? "True " : "False",
crashdata.cr4.PCE ? "True " : "False", crashdata.cr4.UMIP ? "True " : "False", crashdata.cr4.OSFXSR ? "True " : "False", crashdata.cr4.OSXMMEXCPT ? "True " : "False",
crashdata.cr4.LA57 ? "True " : "False", crashdata.cr4.VMXE ? "True " : "False", crashdata.cr4.SMXE ? "True " : "False", crashdata.cr4.PCIDE ? "True " : "False",
crashdata.cr4.OSXSAVE ? "True " : "False", crashdata.cr4.SMEP ? "True " : "False", crashdata.cr4.SMAP ? "True " : "False", crashdata.cr4.PKE ? "True " : "False",
crashdata.cr4.Reserved0, crashdata.cr4.Reserved1, crashdata.cr4.Reserved2);
error("CR8: TPL:%d", crashdata.cr8.TPL);
error("RFL: CF:%s PF:%s AF:%s ZF:%s SF:%s TF:%s IF:%s DF:%s OF:%s IOPL:%s NT:%s RF:%s VM:%s AC:%s VIF:%s VIP:%s ID:%s AlwaysOne:%d R0:%#x R1:%#x R2:%#x R3:%#x",
Frame->rflags.CF ? "True " : "False", Frame->rflags.PF ? "True " : "False", Frame->rflags.AF ? "True " : "False", Frame->rflags.ZF ? "True " : "False",
Frame->rflags.SF ? "True " : "False", Frame->rflags.TF ? "True " : "False", Frame->rflags.IF ? "True " : "False", Frame->rflags.DF ? "True " : "False",
Frame->rflags.OF ? "True " : "False", Frame->rflags.IOPL ? "True " : "False", Frame->rflags.NT ? "True " : "False", Frame->rflags.RF ? "True " : "False",
Frame->rflags.VM ? "True " : "False", Frame->rflags.AC ? "True " : "False", Frame->rflags.VIF ? "True " : "False", Frame->rflags.VIP ? "True " : "False",
Frame->rflags.ID ? "True " : "False", Frame->rflags.AlwaysOne,
Frame->rflags.Reserved0, Frame->rflags.Reserved1, Frame->rflags.Reserved2, Frame->rflags.Reserved3);
error("DR6: B0:%s B1:%s B2:%s B3:%s BD:%s BS:%s BT:%s",
crashdata.dr6.B0 ? "True " : "False", crashdata.dr6.B1 ? "True " : "False", crashdata.dr6.B2 ? "True " : "False", crashdata.dr6.B3 ? "True " : "False",
crashdata.dr6.BD ? "True " : "False", crashdata.dr6.BS ? "True " : "False", crashdata.dr6.BT ? "True " : "False");
error("DR7: L0:%s G0:%s L1:%s G1:%s L2:%s G2:%s L3:%s G3:%s LE:%s GE:%s GD:%s R/W0:%s LEN0:%s R/W1:%s LEN1:%s R/W2:%s LEN2:%s R/W3:%s LEN3:%s",
crashdata.dr7.L0 ? "True " : "False", crashdata.dr7.G0 ? "True " : "False", crashdata.dr7.L1 ? "True " : "False", crashdata.dr7.G1 ? "True " : "False",
crashdata.dr7.L2 ? "True " : "False", crashdata.dr7.G2 ? "True " : "False", crashdata.dr7.L3 ? "True " : "False", crashdata.dr7.G3 ? "True " : "False",
crashdata.dr7.LE ? "True " : "False", crashdata.dr7.GE ? "True " : "False", crashdata.dr7.GD ? "True " : "False", crashdata.dr7.RW0 ? "True " : "False",
crashdata.dr7.LEN0 ? "True " : "False", crashdata.dr7.RW1 ? "True " : "False", crashdata.dr7.LEN1 ? "True " : "False", crashdata.dr7.RW2 ? "True " : "False",
crashdata.dr7.LEN2 ? "True " : "False", crashdata.dr7.RW3 ? "True " : "False", crashdata.dr7.LEN3 ? "True " : "False");
error("EFER: SCE:%s LME:%s LMA:%s NXE:%s SVME:%s LMSLE:%s FFXSR:%s TCE:%s R0:%#x R1:%#x R2:%#x",
crashdata.efer.SCE ? "True " : "False", crashdata.efer.LME ? "True " : "False", crashdata.efer.LMA ? "True " : "False", crashdata.efer.NXE ? "True " : "False",
crashdata.efer.SVME ? "True " : "False", crashdata.efer.LMSLE ? "True " : "False", crashdata.efer.FFXSR ? "True " : "False", crashdata.efer.TCE ? "True " : "False",
crashdata.efer.Reserved0, crashdata.efer.Reserved1, crashdata.efer.Reserved2);
#elif defined(a32)
error("FS=%#x GS=%#x CS=%#x DS=%#x",
CPU::x32::rdmsr(CPU::x32::MSR_FS_BASE), CPU::x32::rdmsr(CPU::x32::MSR_GS_BASE),
Frame->cs, ds);
error("EAX=%#x EBX=%#x ECX=%#x EDX=%#x",
Frame->eax, Frame->ebx, Frame->ecx, Frame->edx);
error("ESI=%#x EDI=%#x EBP=%#x ESP=%#x",
Frame->esi, Frame->edi, Frame->ebp, Frame->esp);
error("EIP=%#x EFL=%#x INT=%#x ERR=%#x",
Frame->eip, Frame->eflags.raw, Frame->InterruptNumber,
Frame->ErrorCode);
error("CR0=%#x CR2=%#x CR3=%#x CR4=%#x CR8=%#x",
crashdata.cr0.raw, crashdata.cr2.raw, crashdata.cr3.raw,
crashdata.cr4.raw, crashdata.cr8.raw);
error("DR0=%#x DR1=%#x DR2=%#x DR3=%#x DR6=%#x DR7=%#x",
crashdata.dr0, crashdata.dr1, crashdata.dr2, crashdata.dr3,
crashdata.dr6.raw, crashdata.dr7.raw);
error("CR0: PE:%s MP:%s EM:%s TS:%s ET:%s NE:%s WP:%s AM:%s NW:%s CD:%s PG:%s R0:%#x R1:%#x R2:%#x",
crashdata.cr0.PE ? "True " : "False", crashdata.cr0.MP ? "True " : "False", crashdata.cr0.EM ? "True " : "False", crashdata.cr0.TS ? "True " : "False",
crashdata.cr0.ET ? "True " : "False", crashdata.cr0.NE ? "True " : "False", crashdata.cr0.WP ? "True " : "False", crashdata.cr0.AM ? "True " : "False",
crashdata.cr0.NW ? "True " : "False", crashdata.cr0.CD ? "True " : "False", crashdata.cr0.PG ? "True " : "False",
crashdata.cr0.Reserved0, crashdata.cr0.Reserved1, crashdata.cr0.Reserved2);
error("CR2: PFLA: %#x",
crashdata.cr2.PFLA);
error("CR3: PWT:%s PCD:%s PDBR:%#x",
crashdata.cr3.PWT ? "True " : "False", crashdata.cr3.PCD ? "True " : "False", crashdata.cr3.PDBR);
error("CR4: VME:%s PVI:%s TSD:%s DE:%s PSE:%s PAE:%s MCE:%s PGE:%s PCE:%s UMIP:%s OSFXSR:%s OSXMMEXCPT:%s LA57:%s VMXE:%s SMXE:%s PCIDE:%s OSXSAVE:%s SMEP:%s SMAP:%s PKE:%s R0:%#x R1:%#x",
crashdata.cr4.VME ? "True " : "False", crashdata.cr4.PVI ? "True " : "False", crashdata.cr4.TSD ? "True " : "False", crashdata.cr4.DE ? "True " : "False",
crashdata.cr4.PSE ? "True " : "False", crashdata.cr4.PAE ? "True " : "False", crashdata.cr4.MCE ? "True " : "False", crashdata.cr4.PGE ? "True " : "False",
crashdata.cr4.PCE ? "True " : "False", crashdata.cr4.UMIP ? "True " : "False", crashdata.cr4.OSFXSR ? "True " : "False", crashdata.cr4.OSXMMEXCPT ? "True " : "False",
crashdata.cr4.LA57 ? "True " : "False", crashdata.cr4.VMXE ? "True " : "False", crashdata.cr4.SMXE ? "True " : "False", crashdata.cr4.PCIDE ? "True " : "False",
crashdata.cr4.OSXSAVE ? "True " : "False", crashdata.cr4.SMEP ? "True " : "False", crashdata.cr4.SMAP ? "True " : "False", crashdata.cr4.PKE ? "True " : "False",
crashdata.cr4.Reserved0, crashdata.cr4.Reserved1);
error("CR8: TPL:%d", crashdata.cr8.TPL);
error("RFL: CF:%s PF:%s AF:%s ZF:%s SF:%s TF:%s IF:%s DF:%s OF:%s IOPL:%s NT:%s RF:%s VM:%s AC:%s VIF:%s VIP:%s ID:%s AlwaysOne:%d R0:%#x R1:%#x R2:%#x",
Frame->eflags.CF ? "True " : "False", Frame->eflags.PF ? "True " : "False", Frame->eflags.AF ? "True " : "False", Frame->eflags.ZF ? "True " : "False",
Frame->eflags.SF ? "True " : "False", Frame->eflags.TF ? "True " : "False", Frame->eflags.IF ? "True " : "False", Frame->eflags.DF ? "True " : "False",
Frame->eflags.OF ? "True " : "False", Frame->eflags.IOPL ? "True " : "False", Frame->eflags.NT ? "True " : "False", Frame->eflags.RF ? "True " : "False",
Frame->eflags.VM ? "True " : "False", Frame->eflags.AC ? "True " : "False", Frame->eflags.VIF ? "True " : "False", Frame->eflags.VIP ? "True " : "False",
Frame->eflags.ID ? "True " : "False", Frame->eflags.AlwaysOne,
Frame->eflags.Reserved0, Frame->eflags.Reserved1, Frame->eflags.Reserved2);
error("DR6: B0:%s B1:%s B2:%s B3:%s BD:%s BS:%s BT:%s",
crashdata.dr6.B0 ? "True " : "False", crashdata.dr6.B1 ? "True " : "False",
crashdata.dr6.B2 ? "True " : "False", crashdata.dr6.B3 ? "True " : "False",
crashdata.dr6.BD ? "True " : "False", crashdata.dr6.BS ? "True " : "False",
crashdata.dr6.BT ? "True " : "False");
error("DR7: L0:%s G0:%s L1:%s G1:%s L2:%s G2:%s L3:%s G3:%s LE:%s GE:%s GD:%s R/W0:%s LEN0:%s R/W1:%s LEN1:%s R/W2:%s LEN2:%s R/W3:%s LEN3:%s",
crashdata.dr7.L0 ? "True " : "False", crashdata.dr7.G0 ? "True " : "False", crashdata.dr7.L1 ? "True " : "False", crashdata.dr7.G1 ? "True " : "False",
crashdata.dr7.L2 ? "True " : "False", crashdata.dr7.G2 ? "True " : "False", crashdata.dr7.L3 ? "True " : "False", crashdata.dr7.G3 ? "True " : "False",
crashdata.dr7.LE ? "True " : "False", crashdata.dr7.GE ? "True " : "False", crashdata.dr7.GD ? "True " : "False", crashdata.dr7.RW0 ? "True " : "False",
crashdata.dr7.LEN0 ? "True " : "False", crashdata.dr7.RW1 ? "True " : "False", crashdata.dr7.LEN1 ? "True " : "False", crashdata.dr7.RW2 ? "True " : "False",
crashdata.dr7.LEN2 ? "True " : "False", crashdata.dr7.RW3 ? "True " : "False", crashdata.dr7.LEN3 ? "True " : "False");
#endif
}
if (Config.InterruptsOnCrash)
{
// 255 // Main
Display->CreateBuffer(0, 0, 254); // Details
Display->CreateBuffer(0, 0, 253); // Frames
Display->CreateBuffer(0, 0, 252); // Tasks
Display->CreateBuffer(0, 0, 251); // Console
Display->CreateBuffer(0, 0, 250); // Empty
DisplayTopOverlay();
DisplayMainScreen(crashdata);
Display->SetBuffer(255);
Interrupts::RemoveAll();
kbd = new CrashKeyboardDriver;
DisplayBottomOverlay();
Display->SetBuffer(255);
}
else
{
/*
TODO: Stuff that should be done when IOC is disabled.
*/
Display->SetBuffer(255);
}
CPU::Halt(true);
}
}
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