geekos-devel Mailing List for GeekOS (Page 2)

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Hi all.

I'm very new to geekos. I was just wondering if anyone has attempted  
to use the network in any assignments for geekos?

Thanks,

-joel

I've been trying to use VGA mode in GeeokOS, using the
int 0x10 BIOS service, but i've seen that GeekOS
change the orignal IDT with a new one, the when i try
to use int 0x10, the default interrupt handler catch
the interruption alerting about a invalid interrupt. 
I did a little search in FreeDOS and it looks to me
that they save the first 17 entries of the original
IDT, i think with this would be possible to use VGA
mode in GeekOS, some guidance with how to do this in
GeekOS will be appreciated.

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Hello,

Moving from project0 to project1 I'm having immediate problems. Here's 
the output of my bochs tests. Note that this is the output with JUST 
project1 code, I didn't modify it at all.

8192KB memory detected, 1669 pages in freelist, 1048576 bytes in kernel heap
Initializing IDT...
Initializing timer...
Delay loop: 1824 iterations per tick
Initializing keyboard...
Initializing DMA Controller...
Initializing floppy controller...
    fd0: cyl=80, heads=2, sectors=18
Initializing IDE controller...
Bad magic number (0) for PFAT filesystem
Failed to mount /a filesystem
Welcome to GeekOS!
Starting the Spawner thread...
Read_Fully failed to read /c/a.exe from disk
Failed assertion in brel: buf != ((void *)0) at ../src/geekos/bget.c, 
line 836,
RA=1360b, thread=0x0000a000

Below is the full bochs.out file, if anyone needs it.

Any ideas?

Thanks,
Josh

Bochs.out:
00000000000i[     ] Bochs x86 Emulator 2.2
00000000000i[     ]   Build from CVS snapshot on May 28, 2005
00000000000i[     ] System configuration
00000000000i[     ]   processors: 1
00000000000i[     ]   A20 line support: yes
00000000000i[     ]   APIC support: yes
00000000000i[     ] CPU configuration
00000000000i[     ]   level: 6
00000000000i[     ]   fpu support: yes
00000000000i[     ]   paging support: yes, tlb enabled: yes
00000000000i[     ]   mmx support: yes
00000000000i[     ]   sse support: 1
00000000000i[     ]   v8086 mode support: yes
00000000000i[     ]   3dnow! support: no
00000000000i[     ]   PAE support: yes
00000000000i[     ]   PGE support: yes
00000000000i[     ]   PSE support: yes
00000000000i[     ]   x86-64 support: no
00000000000i[     ]   SEP support: no
00000000000i[     ] Optimization configuration
00000000000i[     ]   Guest2HostTLB support: yes
00000000000i[     ]   RepeatSpeedups support: yes
00000000000i[     ]   Icache support: yes
00000000000i[     ]   Host Asm support: yes
00000000000i[     ]   Fast function calls: yes
00000000000i[MEM0 ] allocated memory at 0x40680008. after alignment, 
vector=0x40681000
00000000000i[MEM0 ] 8.00MB
00000000000i[MEM0 ] rom at 0xf0000/65536 
('/usr/share/bochs/BIOS-bochs-latest')
00000000000i[MEM0 ] rom at 0xc0000/32768 
('/usr/share/bochs/VGABIOS-lgpl-latest')
00000000000i[APIC?] local apic in  initializing
00000000000i[APIC?] set APIC ID to 0
00000000000i[APIC0] 80686
00000000000i[APIC0] local apic in CPU apicid=00 initializing
00000000000i[     ] lt_dlhandle is 0x8271158
00000000000i[PLGIN] loaded plugin libbx_unmapped.la
00000000000i[     ] lt_dlhandle is 0x8277fa0
00000000000i[PLGIN] loaded plugin libbx_biosdev.la
00000000000i[     ] lt_dlhandle is 0x8278580
00000000000i[PLGIN] loaded plugin libbx_cmos.la
00000000000i[     ] lt_dlhandle is 0x8278ae8
00000000000i[PLGIN] loaded plugin libbx_dma.la
00000000000i[     ] lt_dlhandle is 0x8279130
00000000000i[PLGIN] loaded plugin libbx_pic.la
00000000000i[     ] lt_dlhandle is 0x8279678
00000000000i[PLGIN] loaded plugin libbx_vga.la
00000000000i[     ] lt_dlhandle is 0x8279b58
00000000000i[PLGIN] loaded plugin libbx_floppy.la
00000000000i[     ] lt_dlhandle is 0x827a338
00000000000i[PLGIN] loaded plugin libbx_harddrv.la
00000000000i[     ] lt_dlhandle is 0x827fed8
00000000000i[PLGIN] loaded plugin libbx_keyboard.la
00000000000i[     ] lt_dlhandle is 0x8273128
00000000000i[PLGIN] loaded plugin libbx_serial.la
00000000000i[     ] lt_dlhandle is 0x8280fd0
00000000000i[PLGIN] loaded plugin libbx_parallel.la
00000000000i[     ] lt_dlhandle is 0x82815d8
00000000000i[PLGIN] loaded plugin libbx_extfpuirq.la
00000000000i[     ] lt_dlhandle is 0x8281058
00000000000i[PLGIN] loaded plugin libbx_gameport.la
00000000000i[     ] lt_dlhandle is 0x8281f08
00000000000i[PLGIN] loaded plugin libbx_speaker.la
00000000000i[IOAP ] initializing I/O APIC
00000000000i[IOAP ] set APIC ID to 1
00000000000i[CMOS ] Using local time for initial clock
00000000000i[CMOS ] Setting initial clock to: Sat Jun  4 13:23:33 2005 
(time0=1117916613)
00000000000i[DMA  ] channel 4 used by cascade
00000000000i[DMA  ] channel 2 used by Floppy Drive
00000000000i[FDD  ] fd0: 'fd.img' ro=0, h=2,t=80,spt=18
00000000000i[CLVGA] interval=30000
00000000000i[CLVGA] CL-GD5430 ISA initialized
00000000000i[PLGIN] init_mem of 'harddrv' plugin device by virtual method
00000000000i[PLGIN] init_mem of 'keyboard' plugin device by virtual method
00000000000i[PLGIN] init_mem of 'serial' plugin device by virtual method
00000000000i[PLGIN] init_mem of 'parallel' plugin device by virtual method
00000000000i[PLGIN] init_mem of 'extfpuirq' plugin device by virtual method
00000000000i[PLGIN] init_mem of 'gameport' plugin device by virtual method
00000000000i[PLGIN] init_mem of 'speaker' plugin device by virtual method
00000000000i[PLGIN] init_dev of 'harddrv' plugin device by virtual method
00000000000i[HD   ] Using boot sequence floppy, none, none
00000000000i[HD   ] Floppy boot signature check is enabled
00000000000i[PLGIN] init_dev of 'keyboard' plugin device by virtual method
00000000000i[KBD  ] will paste characters every 1000 keyboard ticks
00000000000i[PLGIN] init_dev of 'serial' plugin device by virtual method
00000000000i[SER  ] com1 at 0x03f8 irq 4
00000000000i[PLGIN] init_dev of 'parallel' plugin device by virtual method
00000000000i[PAR  ] parallel port 1 at 0x0378 irq 7
00000000000i[PLGIN] init_dev of 'extfpuirq' plugin device by virtual method
00000000000i[PLGIN] init_dev of 'gameport' plugin device by virtual method
00000000000i[PLGIN] init_dev of 'speaker' plugin device by virtual method
00000000000i[SPEAK] Failed to open /dev/console: No such device
00000000000i[SPEAK] Deactivating beep on console
00000000000i[PLGIN] reset of 'harddrv' plugin device by virtual method
00000000000i[PLGIN] reset of 'keyboard' plugin device by virtual method
00000000000i[PLGIN] reset of 'serial' plugin device by virtual method
00000000000i[PLGIN] reset of 'parallel' plugin device by virtual method
00000000000i[PLGIN] reset of 'extfpuirq' plugin device by virtual method
00000000000i[PLGIN] reset of 'gameport' plugin device by virtual method
00000000000i[PLGIN] reset of 'speaker' plugin device by virtual method
00000004163i[BIOS ]  rombios.c,v 1.138 2005/05/07 15:55:26 vruppert Exp $
00000330070i[KBD  ] reset-disable command received
00000451783i[VBIOS] VGABios $Id: vgabios.c,v 1.61 2005/05/24 16:50:50 
vruppert Exp $
00000454789i[VBIOS] VBE Bios $Id: vbe.c,v 1.47 2005/05/24 16:50:50 
vruppert Exp $
00000722291e[HD   ] device set to 0 which does not exist
00000722584e[HD   ] device set to 1 which does not exist
00009611901e[HD   ] device set to 0 which does not exist
00009611912i[HD   ] disk ata0-0 not present, aborting
00009611965e[HD   ] device set to 0 which does not exist
00009612036e[HD   ] device set to 1 which does not exist
00009612100e[HD   ] device set to 1 which does not exist
00157830000p[SDL  ] >>PANIC<< POWER button turned off.
00157830000i[SYS  ] Last time is 1117916928
00157830000i[CPU0 ] protected mode
00157830000i[CPU0 ] CS.d_b = 32 bit
00157830000i[CPU0 ] SS.d_b = 32 bit
00157830000i[CPU0 ] | EAX=00000000  EBX=fffffff8  ECX=ffffff00  EDX=000003d4
00157830000i[CPU0 ] | ESP=0000bf4c  EBP=0000bf54  ESI=00000000  EDI=00000000
00157830000i[CPU0 ] | IOPL=0 NV UP DI PL NZ NA PO NC
00157830000i[CPU0 ] | SEG selector     base    limit G D
00157830000i[CPU0 ] | SEG sltr(index|ti|rpl)     base    limit G D
00157830000i[CPU0 ] |  CS:0008( 0001| 0|  0) 00000000 000fffff 1 1
00157830000i[CPU0 ] |  DS:0010( 0002| 0|  0) 00000000 000fffff 1 1
00157830000i[CPU0 ] |  SS:0010( 0002| 0|  0) 00000000 000fffff 1 1
00157830000i[CPU0 ] |  ES:0010( 0002| 0|  0) 00000000 000fffff 1 1
00157830000i[CPU0 ] |  FS:0000( 0000| 0|  0) 00000000 000fffff 1 1
00157830000i[CPU0 ] |  GS:0000( 0000| 0|  0) 00000000 000fffff 1 1
00157830000i[CPU0 ] | EIP=00013088 (00013088)
00157830000i[CPU0 ] | CR0=0x00000011 CR1=0 CR2=0x00000000
00157830000i[CPU0 ] | CR3=0x00000000 CR4=0x00000000
00157830000i[     ] restoring default signal behavior
00157830000i[CTRL ] quit_sim called with exit code 1

-- 
[ WebDDM - Web Drop Down Menu, the world's leading open source website menu software - http://www.jportalhome.com/webddm/ ]
[ JPortal - Open source software and web development - http://www.jportalhome.com/ ]

Joshua Gross wrote:

> Well, I hope I don't come across as a complete noob. I'm working on 
> project 0. Every time I use Wait_For_Key, it returns a pressed key 
> /twice.   /So if I press "f", Wait_For_Key returns it twice. I've also 
> done some debugging and the Keyboard_Interrupt_Handler also is called 
> twice. I'm testing in Bochs and also on real hardware and I get the 
> same result on both. Help?

Keypress events are generated for both key presses and key releases.  
Check for
the KEY_RELEASE_FLAG being set in the keycode - those are releases,
which you should just discard.

-Dave

Well, I hope I don't come across as a complete noob. I'm working on 
project 0. Every time I use Wait_For_Key, it returns a pressed key 
/twice.   /So if I press "f", Wait_For_Key returns it twice. I've also 
done some debugging and the Keyboard_Interrupt_Handler also is called 
twice. I'm testing in Bochs and also on real hardware and I get the same 
result on both. Help?

Josh

-- 
[ WebDDM - Web Drop Down Menu, the world's leading open source website menu software - http://www.jportalhome.com/webddm/ ]
[ JPortal - Open source software and web development - http://www.jportalhome.com/ ]

Hello,

I cant't compile GeekOS (0.3.0 Release) on Windows XP under mingw, when
I compile I got:

objcopy -O elf32-i386 user/workload.exe user/workload.exe
c:\mingw\bin\objcopy.exe: user/workload.exe: File truncated

The make script cancelled with error 1
Are there any Suggestions ? But I will try to resolve the problem during
this day.

I have also patched the makefile to build GeekOs, if theres any need i
will also attached the diff to next mail. 

marm.mm Germany

Ahmad Rizvi wrote:

> I was doing Project 0, the echoing of pressed keys. I used a 
> Wait_For_Key() and Put_Char() combination to echo pressed keys, but I 
> found that the keys are echoed twice. Is it due to a Bochs problem or 
> a GeekOS problem? I investigated a little bit and found that for each 
> key pressed, two keycodes are enqueued. Please shed some light on this 
> problem!
>  

Events are generated for both key presses and key releases.
Check for KEY_RELEASE_FLAG in the returned keycodes.

-Dave

Hi David,

I was doing Project 0, the echoing of pressed keys. I used a =
Wait_For_Key() and Put_Char() combination to echo pressed keys, but I =
found that the keys are echoed twice. Is it due to a Bochs problem or a =
GeekOS problem? I investigated a little bit and found that for each key =
pressed, two keycodes are enqueued. Please shed some light on this =
problem!=20

Thanks,
Ahmad

Ahmad Rizvi wrote:

> Hi,
>
> I am trying to make project 0, where I get an 'undefined reference to 
> __bss_start':
>
> geekos/mem.o(.text+0x3bf): In function `Init_BSS':
> ./src/geekos/mem.c:173: undefined reference to `__bss_start'
> geekos/mem.o(.text+0x3c7):../src/geekos/mem.c:173: undefined reference 
> to `__bss_start'
> make.exe: *** [geekos/kernel.exe] Error 1
>
> My environment is: windows (im trying to make geekos work on win, and 
> i removed all errors except this one), and the djgpp compiler (it is 
> gcc for dos). The error is caused by the reference in mem.c:

Note that djgpp has never been used for GeekOS development (that I know of).
You may encounter issues booting the kernel.  Also, it emits exes
in a.out format, so the ELF loading project won't work quite as
described.

>
> void Init_BSS(void)
> {
>    extern char BSS_END, BSS_START;
>    /* Fill .bss with zeroes */
>    memset(&BSS_START, '\0', &BSS_END - &BSS_START);
> }
>
> I did a little search, and the variable BSS_START is not defined in 
> any src file.
> I would like to know if the variable should be provided by the 
> compiler. It seems to be a mystery!
> Please shed some light on the situation.

Those symbols are defined in include/geekos/defs.h.  You'll need to
redefine them to whatever symbols are appropriate for djgpp.
It may be the case that you can just use the ones defined for
cygwin.

-Dave

Hi,

I am trying to make project 0, where I get an 'undefined reference to 
__bss_start':

geekos/mem.o(.text+0x3bf): In function `Init_BSS':
./src/geekos/mem.c:173: undefined reference to `__bss_start'
geekos/mem.o(.text+0x3c7):../src/geekos/mem.c:173: undefined reference to 
`__bss_start'
make.exe: *** [geekos/kernel.exe] Error 1

My environment is: windows (im trying to make geekos work on win, and i 
removed all errors except this one), and the djgpp compiler (it is gcc for 
dos). The error is caused by the reference in mem.c:

void Init_BSS(void)
{
    extern char BSS_END, BSS_START;
    /* Fill .bss with zeroes */
    memset(&BSS_START, '\0', &BSS_END - &BSS_START);
}

I did a little search, and the variable BSS_START is not defined in any src 
file.
I would like to know if the variable should be provided by the compiler. It 
seems to be a mystery!
Please shed some light on the situation.

Apologies if this question has been asked before.

Thanks,
Ahmad 

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