mirror of
https://github.com/Fennix-Project/Kernel.git
synced 2025-07-11 07:19:20 +00:00
Revamped kernel panic functions with significant improvements
This commit is contained in:
145
core/panic/diag.cpp
Normal file
145
core/panic/diag.cpp
Normal file
@ -0,0 +1,145 @@
|
||||
/*
|
||||
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 <display.hpp>
|
||||
#include <bitmap.hpp>
|
||||
#include <convert.h>
|
||||
#include <printf.h>
|
||||
#include <lock.hpp>
|
||||
#include <rand.hpp>
|
||||
#include <uart.hpp>
|
||||
#include <time.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"
|
||||
#include "keyboard.hpp"
|
||||
|
||||
extern void ExPrint(const char *Format, ...);
|
||||
extern Video::Font *CrashFont;
|
||||
extern void DisplayTopOverlay();
|
||||
extern CPU::ExceptionFrame *ExFrame;
|
||||
|
||||
/* TODO: Add more info */
|
||||
struct DiagnosticFile
|
||||
{
|
||||
__packed __aligned(16) struct
|
||||
{
|
||||
uint8_t Signature[5] = {'D', 'I', 'A', 'G', '\0'};
|
||||
uint32_t Version = 1;
|
||||
char Is64Bit = 0;
|
||||
uint32_t Length = 0;
|
||||
} Header;
|
||||
|
||||
__packed __aligned(16) struct
|
||||
{
|
||||
CPU::ExceptionFrame Frame;
|
||||
|
||||
uint32_t KernelMemoryLength;
|
||||
uint8_t KernelMemory[];
|
||||
} Data;
|
||||
};
|
||||
|
||||
nsa bool WriteDiagDataToNode(vfs::RefNode *refFile)
|
||||
{
|
||||
uintptr_t KStart = (uintptr_t)&_kernel_start;
|
||||
uintptr_t kEnd = (uintptr_t)&_kernel_end;
|
||||
size_t kSize = kEnd - KStart;
|
||||
|
||||
size_t fileSize = sizeof(DiagnosticFile) + kSize;
|
||||
uint8_t *buf = (uint8_t *)KernelAllocator.RequestPages(TO_PAGES(fileSize));
|
||||
if (!buf)
|
||||
{
|
||||
ExPrint("\eFF0000Failed to allocate memory for diagnostic data\n");
|
||||
Display->UpdateBuffer();
|
||||
return false;
|
||||
}
|
||||
|
||||
DiagnosticFile *file = (DiagnosticFile *)buf;
|
||||
file->Header = {};
|
||||
file->Header.Length = uint32_t(fileSize);
|
||||
file->Header.Is64Bit = sizeof(void *) == 8;
|
||||
|
||||
file->Data.Frame = *ExFrame;
|
||||
file->Data.KernelMemoryLength = uint32_t(kSize);
|
||||
memcpy(file->Data.KernelMemory, (void *)KStart, kSize);
|
||||
|
||||
ExPrint("\eFAFAFAWriting to %s\n", refFile->node->FullPath);
|
||||
size_t w = refFile->write(buf, fileSize);
|
||||
if (w != fileSize)
|
||||
{
|
||||
debug("%d out of %d bytes written", w, fileSize);
|
||||
ExPrint("\eFF0000Failed to write diagnostic data to file: %s\n",
|
||||
strerror((int)w));
|
||||
Display->UpdateBuffer();
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
nsa void DiagnosticDataCollection()
|
||||
{
|
||||
Display->ClearBuffer();
|
||||
DisplayTopOverlay();
|
||||
|
||||
ExPrint("\n\eFAFAFAPlease wait while we collect some diagnostic information...\n");
|
||||
ExPrint("This may take a while...\n");
|
||||
|
||||
vfs::Node *panicDir = fs->CreateIfNotExists("/var/panic", vfs::DIRECTORY);
|
||||
if (!panicDir)
|
||||
{
|
||||
ExPrint("\eFF0000Failed to create /var/panic\n");
|
||||
Display->UpdateBuffer();
|
||||
return;
|
||||
}
|
||||
|
||||
Time::Clock clock = Time::ReadClock();
|
||||
char filename[64];
|
||||
for (int i = 0; i < INT32_MAX; i++)
|
||||
{
|
||||
sprintf(filename, "dump-%d-%d-%d-%d.dmp",
|
||||
clock.Year, clock.Month, clock.Day, i);
|
||||
if (fs->PathExists(filename, panicDir))
|
||||
continue;
|
||||
|
||||
fs->Create(filename, vfs::FILE, panicDir);
|
||||
break;
|
||||
}
|
||||
|
||||
vfs::RefNode *refFile = fs->Open(filename, panicDir);
|
||||
if (!WriteDiagDataToNode(refFile))
|
||||
{
|
||||
delete refFile;
|
||||
return;
|
||||
}
|
||||
|
||||
ExPrint("You can find the diagnostic file in /var/panic/%s\n", filename);
|
||||
Display->UpdateBuffer();
|
||||
delete refFile;
|
||||
}
|
Reference in New Issue
Block a user