18. May 2024, 01:01
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Und mit -g?Auch nicht.
Ansonsten müsstest du mal die Ausgabe von objdump -x herzeigen.Die Ausgabe habe ich angehängt.
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ENTRY (loader)
OUTPUT_FORMAT(elf32-i386)
/*OUTPUT_ARCH(i386:i386)*/
SECTIONS
{
. = 0x00100000;
kernel_start = .;
.text :
{
init.o;
initasm.o;
*(.text)
}
. = ALIGN(4096);
kernel_endofcodesection = .;
.rodata :
{
*(.rodata)
}
. = ALIGN(4096);
kernel_endofreadonlysection = .;
.data :
{
*(.data)
}
.bss :
{
_sbss = .;
*(COMMON)
*(.bss)
_ebss = .;
}
. = ALIGN(4096);
kernel_end = .;
}
Verwendest du ein Tutorial/eine Anleitung wie man Qemu mit Eclipse nutzen kann?Nein, nicht direkt. Ich habe allerdings auch schon im Internet rumgeschaut.
Also beim googeln ist z.b. das hier rausgekommen, das komplett anders eingerichtet ist.Mein Problem ist das da ganz andere Optionen existieren.
[...] weil ich glaube, dass in deinem Fall Eclipse versucht Qemu oder die .bat-Datei zu debuggen und nicht dein OS.Das kann gut sein. Aber soll ich dann wählen? Remote Application? Attach to Application?
Booting 'start'
kernel /kernel.bin
Error 13: Invalid or unsupported executable format
Press any key to continue...Ohne Debuginformationen hat GRUB keine Probleme den Kernel zu starten.copy "%CD%\kernel.bin" "%CD%\..\cd\kernel.bin"
cd ..
mkisofs -R -J -b boot/grub/stage2_eltorito -no-emul-boot -boot-load-size 4 -boot-info-table -o "cdrom.iso" "cd/"
i586-elf-objcopy --only-keep-debug "cd\kernel.bin" "kernel.sym"
copy "cd\kernel.bin" "kernel.sym"
i586-elf-objcopy --strip-debug "cd\kernel.bin"
Das Problem tritt auch auf, wenn ich die letzten drei Befehle zum extrahieren der Debuginformation auskommentiere.Excetion occurred during lauch
Reason:
Program is not a recognized executable.
Details:
Program is not a recognized executable.
Program is not a recognized executable.
Program is not a recognized executable.Die oben erwähnte Batchdatei startet Qemu im Debugmodus und scheint zu funktionieren.symbol kernel.sym
target remote 127.0.0.1:1234
(gdb) cd ?:\*\*\*\System001
Working directory ?:\*\*\*\System001.
(gdb) target remote 127.0.0.1:1234
Remote debugging using 127.0.0.1:1234
0x000090bd in ?? ()
(gdb) symbol-file kernel.sym
Reading symbols from ?:\*\*\*\System001\kernel.sym...(no debugging symbols found)...done.
(gdb) continue
Continuing.
Program received signal SIGINT, Interrupt.
0x001103bc in Mmv_Init ()
(gdb) interrupt
(gdb) next
Single stepping until exit from function Mmv_Init,
which has no line number informationcd ?:\*\*\*\System001
target remote 127.0.0.1:1234
symbol-file kernel.symSET C_COMPILE=i586-elf-gcc -m32 -ffreestanding -Wall -nostdinc -std=gnu99 -I stdlib -O1 -fno-builtin -g
SET ASM_COMPILE=nasm -f elf32 -g
%ASM_COMPILE% -o obj\init_S.o init.S
%C_COMPILE% -o obj\init_c.o -c init.c
%C_COMPILE% -o obj\lowlevelbeep_c.o -c kernel\lowlevelbeep.c
%C_COMPILE% -o obj\lowlevelconsole_c.o -c kernel\lowlevelconsole.c
%C_COMPILE% -o obj\time_c.o -c kernel\lowleveltime.c
%C_COMPILE% -o obj\cpuid_c.o -c kernel\cpuid.c
%C_COMPILE% -o obj\gdt_c.o -c kernel\gdt.c
%C_COMPILE% -o obj\pic_c.o -c kernel\pic.c
%ASM_COMPILE% -o obj\intr_S.o kernel\intr.S
%C_COMPILE% -o obj\intr_c.o -c kernel\intr.c
%C_COMPILE% -o obj\cpustate_c.o -c kernel\cpustate.c
%C_COMPILE% -o obj\thread_c.o -c kernel\thread.c
%C_COMPILE% -o obj\process_c.o -c kernel\process.c
%C_COMPILE% -o obj\tss_c.o -c kernel\tss.c
%C_COMPILE% -o obj\api_intr_c.o -c kernel\api_intr.c
%C_COMPILE% -o obj\mm_c.o -c kernel\mm.c
%C_COMPILE% -o obj\mmp_c.o -c kernel\mmp.c
%C_COMPILE% -o obj\mmv_c.o -c kernel\mmv.c
@REM %C_COMPILE% %C_COMPILE% -E -o stdlib_math_c.i -c stdlib\math.c
@REM %C_COMPILE% -c -S -o stdlib_math_c.S -c stdlib\math.c
%C_COMPILE% -o obj\stdlib_math_c.o -c stdlib\math.c
%C_COMPILE% -o obj\stdlib_string_c.o -c stdlib\string.c
%C_COMPILE% -o obj\stdlib_stdlib_c.o -c stdlib\stdlib.c
%C_COMPILE% -o obj\api_api_c.o -c kernel\api\api.c
%C_COMPILE% -o obj\api_console_c.o -c kernel\api\console.c
i586-elf-ld -L "%GCC_PATH%\lib" -L "%GCC_PATH%\lib\gcc\i586-elf\%GCC_VERSION%" -T linkconf.ld -o obj\kernel.bin obj\*.o "%LIBGCC_FILE_NAME%" -Ttext=0x100000
i586-elf-objcopy --only-keep-debug "obj\kernel.bin" "kernel.sym"
i586-elf-objcopy --strip-debug "obj\kernel.bin"
copy obj\kernel.bin cd\kernel.bin
mkisofs -R -J -b boot/grub/stage2_eltorito -no-emul-boot -boot-load-size 4 -boot-info-table -o cdrom.iso cd/
(gdb) target remote 127.0.0.1:1234
Remote debugging using 127.0.0.1:1234
Ignoring packet error, continuing...
warning: unrecognized item "timeout" in "qSupported" response
Ignoring packet error, continuing...
Ignoring packet error, continuing...
Ignoring packet error, continuing...
Ignoring packet error, continuing...
Ignoring packet error, continuing...
warning: Invalid remote reply: timeout
Remote communication error. Target disconnected.: No error.Das musst du selbst von der Qemu-Console aus tun.Ich dachte, dass macht macht der Debugger dann automatisch?
In die Konsole kommst du mit der Tastenkombination Strg-Alt-F2.Hm, funktioniert bei mir irgendwie nicht.
?:\*\*>gdb
GNU gdb (GDB) 7.4
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-pc-mingw32".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
(gdb) target remote 127.0.0.1:1234
Remote debugging using 127.0.0.1:1234
Ignoring packet error, continuing...
warning: unrecognized item "timeout" in "qSupported" response
Ignoring packet error, continuing...
Ignoring packet error, continuing...
Ignoring packet error, continuing...
Ignoring packet error, continuing...
Ignoring packet error, continuing...
warning: Invalid remote reply: timeoutSET IMAGENAME=cdrom.iso
SET DEBUGPARAMS=-gdb tcp:127.0.0.1:1234 -S
FOR /f "tokens=*" %%i IN ('cd') DO SET AKTPFAD=%%i
call ..\QemuFolder.bat
qemu-system-i386.exe %DEBUGPARAMS% -m 4 -cdrom "%AKTPFAD%\%IMAGENAME%" -cpu pentium3 -L "%cd%\pc-bios" -localtime -soundhw all -D "%AKTPFAD%\qemu.log" -d int
00102490 <Console_CurserMove>:
102490: 55 push %ebp
102491: 89 e5 mov %esp,%ebp
102493: 80 3d 65 68 10 00 00 cmpb $0x0,0x106865
10249a: 74 22 je 1024be <Console_CurserMove+0x2e>
10249c: ba d4 03 00 00 mov $0x3d4,%edx
1024a1: b0 0e mov $0xe,%al
1024a3: ee out %al,(%dx) ;Hier kracht es...
1024a4: 8b 0d 30 69 10 00 mov 0x106930,%ecx
1024aa: 89 c8 mov %ecx,%eax
1024ac: c1 e8 08 shr $0x8,%eax
1024af: b2 d5 mov $0xd5,%dl
1024b1: ee out %al,(%dx)
1024b2: b2 d4 mov $0xd4,%dl
1024b4: b0 0f mov $0xf,%al
1024b6: ee out %al,(%dx)
1024b7: b2 d5 mov $0xd5,%dl
1024b9: 88 c8 mov %cl,%al
1024bb: ee out %al,(%dx)
1024bc: eb 17 jmp 1024d5 <Console_CurserMove+0x45>
1024be: ba d4 03 00 00 mov $0x3d4,%edx
1024c3: b0 0e mov $0xe,%al
1024c5: ee out %al,(%dx)
1024c6: b2 d5 mov $0xd5,%dl
1024c8: b0 07 mov $0x7,%al
1024ca: ee out %al,(%dx)
1024cb: b2 d4 mov $0xd4,%dl
1024cd: b0 0f mov $0xf,%al
1024cf: ee out %al,(%dx)
1024d0: b2 d5 mov $0xd5,%dl
1024d2: b0 d0 mov $0xd0,%al
1024d4: ee out %al,(%dx)
1024d5: 5d pop %ebp
1024d6: c3 ret void Write0()
{
while(true)
{
//halt();
Console_WriteChar('0');
for(int i = 0; i < 0x6fffff; i++) nop10();
}
}
void WriteX()
{
while(true)
{
//halt();
Console_WriteChar('X');
for(int i = 0; i < 0x6fffff; i++) nop10();
}
}
void main(Multiboot_Info* MultibootInfo)
{
Time_Read(&StartTime);
Console_ClearScreen();
Console_WriteHeader("Kernel gestartet!");
Console_Write("Bootloader: ");
Console_WriteLine(MultibootInfo->BootloaderName);
Console_Write("Prozessorhersteller: ");
int Processorvendor = CpuId_ReadVendor();
Console_WriteVendor(Processorvendor);
Console_NewLine();
if (Processorvendor == CPUID_VENDOR_INTEL)
{
Console_Write("Prozessortype: ");
Console_WriteIntelProcName();
Console_NewLine();
}
Console_Write("Startzeit: ");
Console_WriteTime(&StartTime);
Console_NewLine(); Console_NewLine();
Console_WriteHeader("Lade Kernel");
Gdt_Init();
ProcessCount = 2;
Processes[0] = Process_New();
Processes[0].Threads[0] = Thread_New(Proc0Thread0Stack, THREAD_STACKSIZE, Proc0Thread0UserStack, THREAD_USERSTACKSIZE, &WriteX);
Processes[1] = Process_New();
Processes[1].Threads[0] = Thread_New(Proc1Thread0Stack, THREAD_STACKSIZE, Proc1Thread0UserStack, THREAD_USERSTACKSIZE, &Write0);
Intr_Init();
stop();
}
#define CONSOLE_LINELENGTH (80)
#define CONSOLE_LINECOUNT (25)
#define CONSOLE_CHARCOUNT (CONSOLE_LINECOUNT * CONSOLE_LINELENGTH)
#define CONSOLE_VIDEO ((uint16_t*) 0xb8000)
__attribute__((unused)) uint32_t Console_Curser = 0;
__attribute__((unused)) uint32_t Console_UsingLines = 23;
__attribute__((unused)) uint8_t Console_Format = 0x07;
__attribute__((unused)) bool Console_ShowCurser = true;
[...] //Sehr viel jetzt nicht relevanter Code
void Console_ShiftUp()
{
for(int i = 0; i < CONSOLE_CHARCOUNT; i++)
{
if (i < (CONSOLE_CHARCOUNT - CONSOLE_LINELENGTH))
{
//Untere Zeile nach oben kopieren
CONSOLE_VIDEO[i] = CONSOLE_VIDEO[i + CONSOLE_LINELENGTH];
}
else
{
//Unterste Zeile leeren
CONSOLE_VIDEO[i] = ((uint16_t)EMPTYCHAR) | (((uint16_t)Console_Format) << 8);
}
}
//Curser eine Zeile nach oben verschieben
Console_Curser -= CONSOLE_LINELENGTH;
Console_CurserMove();
}
void Console_NewLine()
{
//Zeiger platzieren
Console_Curser -= Console_Curser % CONSOLE_LINELENGTH;
Console_Curser += CONSOLE_LINELENGTH;
//Zeilen hochschieben wenn nötig
if (Console_UsingLines >= (Console_Curser * CONSOLE_LINELENGTH))
{
Console_ShiftUp();
}
}
void Console_WriteChar(const char Char)
{
//Zeiger platzieren
if (Char == NEWLINE)
{
Console_NewLine();
return;
}
//Zeilen hochschieben wenn nötig
if ((Console_Curser / CONSOLE_LINELENGTH) >= Console_UsingLines)
{
Console_ShiftUp();
}
//Zeichen schreiben
CONSOLE_VIDEO[Console_Curser++] = ((uint16_t)Char) | (((uint16_t)Console_Format) << 8);
}