OSDev.org

Posted: **Wed Apr 16, 2008 10:47 am**

I am currently having problems linking my kernel. The error I recieve is 'Cannot Read Symbols: Memory Exhausted' I have tried all sorts of memory options in LD.EXE, I have tried using the MingW LD, the DJGPP LD and the CygWin LD, none of them seem to work under Windows Vista.

Has anyone got LD working under Windows Vista?

If so, what formats are you using and what parameters do you pass to LD?

If anyone has any ideas of how to help, please let me know...

Thanks in advance,
Kieran Foot

Posted: **Wed Apr 16, 2008 1:16 pm**

ld -V ?

Posted: **Wed Apr 16, 2008 1:56 pm**

My LD version info is:

GNU ld version 2.17.50 20060824
Supported Emulations:
i386pe

Posted: **Wed Apr 16, 2008 2:03 pm**

I'm using Vista Ultimate x64, Cygwin's ld works fine for me:

From my makefile:

Code: Select all

@$(LD) -T$(LDSCRIPT) -o $(BIN)/kernel $(OBJS) $(LIBGCC)

How much RAM does your system have? What does your linker script look like?

I doubt very highly that Vista is the cause.

Posted: **Wed Apr 16, 2008 2:50 pm**

I Run:

LD -T KRNL.LD -omgos.x

Here is my linker script:

Code: Select all

INPUT("ASTART.O")
INPUT("CMAIN.O")
INPUT("CMDPMT.O")
INPUT("CPUABIL.O")
INPUT("CPUID.O")
INPUT("FDD.O")
INPUT("GDT.O")
INPUT("HDD.O")
INPUT("IDT.O")
INPUT("IRQ.O")
INPUT("ISRS.O")
INPUT("KBD.O")
INPUT("KPRINTF.O")
INPUT("MM.O")
INPUT("PAGING.O")
INPUT("SCHED.O")
INPUT("SHUTDOWN.O")
INPUT("TIMER.O")
INPUT("VGA.O")
INPUT("VIDEO.O")
INPUT("../lib/libc.a")
OUTPUT_FORMAT("elf32-i386") 
ENTRY(_entry)
phys = 0x100000;
SECTIONS
{
  .text phys : AT(phys) {
    code = .;
    *(.text)
    *(.rodata)
    . = ALIGN(4096);
  }
  .data : AT(phys + (data - code))
  {
    data = .;
    *(.data)
    . = ALIGN(4096);
  }
  .bss : AT(phys + (bss - code))
  {
    bss = .;
    *(.bss)
    . = ALIGN(4096);
  }
  end = .;
}

Posted: **Wed Apr 16, 2008 4:42 pm**

Are you using the Cygwin LD, or a cross-compiled elf LD? If you're using the standard Cygwin one, stop right there and cross-compile binutils using the sources at gnu.org. I'm using Vista 32-bit, so I know that LD works under Vista.

Posted: **Wed Apr 16, 2008 4:49 pm**

i am running LD (cygwin) on windows vista, i had to build a cross compiler because the version with cygwin has no support for elf files, i had terrible trouble with LD - it used to create ten meg executable for my kernel - which is nowhere near that size - eventually i had to use the MEMORY directive - this is my linker script:

Code: Select all

OUTPUT_FORMAT("binary")
ENTRY(start)
MEMORY 
  {
  ram (!rx) : ORIGIN = 0x100000, LENGTH = 256K
  }

SECTIONS
{
  .text : {  
    *(.text)
  } > ram
  
  .data  : {
    *(.data)
  } > ram
  
   .rodata : {
    *(.rodata)
    *(.rodata.1)
    *(.rodata.str1.4)
    *(.rodata.str1.1)
  } > ram
  
  .bss : {
    *(.bss)
  } > ram
}

if you need to build a cross compiler for cygwin i can post the script file i made to build mine

Posted: **Wed Apr 16, 2008 7:01 pm**

You're gonna have to build a cygwin cross-compiler to compile under windows vista. Windows Vista now restricts to 32 MB the memory of any DOS application , so that means that the only GNU compilers that work properly under vista are MinGW and Cygwin which internally use Windows calls instead of the standard library.

I've heard of people using DOSbox to use the GNU compiler, but I can really guarantee the performance.

Posted: **Fri Apr 18, 2008 4:34 pm**

Ok, I am using i686 version of binutils and gcc.

I have managed to get rid of all previous errors.

I have had a mix of errors until now.

LD: PE operations on non PE file.
LD: Cannot read symbols: Memory exhausted

Now, I get a totally different error.

24 [main] LD 240 _cygtls::handle_exceptions: Exception: STATUS_ACCESS_VIOLATION
1181 [main] LD 240 open_stackdumpfile: Dumping stack trace to ld.exe.stackdump
230784 [main] LD 240 _cygtls::handle_exceptions: Exception: STATUS_ACCESS_VIOLATION
232524 [main] LD 240 _cygtls::handle_exceptions: Error while dumping state (probably corrupted stack)

I have now idea how I have caused this error. I'm just hopeing somebody can help...

Posted: **Wed Apr 23, 2008 8:48 pm**

doesn't vista only allow non-windows apps only 32MB of space? could you be going over that limit?

Posted: **Wed Apr 23, 2008 9:59 pm**

Kieran wrote:Ok, I am using i686 version of binutils and gcc.

I have managed to get rid of all previous errors.

I have had a mix of errors until now.

LD: PE operations on non PE file.
LD: Cannot read symbols: Memory exhausted

Now, I get a totally different error.

24 [main] LD 240 _cygtls::handle_exceptions: Exception: STATUS_ACCESS_VIOLATION
1181 [main] LD 240 open_stackdumpfile: Dumping stack trace to ld.exe.stackdump
230784 [main] LD 240 _cygtls::handle_exceptions: Exception: STATUS_ACCESS_VIOLATION
232524 [main] LD 240 _cygtls::handle_exceptions: Error while dumping state (probably corrupted stack)

I have now idea how I have caused this error. I'm just hopeing somebody can help...

It may symptom of another problem. Is it possible for you to attach your OS code (or even just your compiled object files). Also have you compiled the thing from scratch lately.

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LD.EXE under Windows Vista

LD.EXE under Windows Vista