Unable To Jump To Undefined Symbol

Unable To Jump To Undefined Symbol

[Deepak Pandey]

Hi,
  I got a compilation problem saying UNABLE TO JUMP TO UNDEFIND SYMBOL 
while compiling a code in which I tried to jump to a symbol(symbol_name) 
from a different file by an assembly instruction (j symbol_name).However 
I also declared the symbol as global(.globl symbol_name) but still it 
didnot worked.
The Symbol was defined as follows:
         LEAF(symbol_name)
     /*some assembly instructions*/
     END(symbol_name)
Thanks in Advance.

Re: Unable To Jump To Undefined Symbol

[leslie.polzer]

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On Tue, Mar 14, 2006 at 07:16:30PM +0530, Deepak Pandey wrote:

> Hi, I got a compilation problem saying UNABLE TO JUMP TO UNDEFIND
> SYMBOL while compiling a code in which I tried to jump to a
> symbol(symbol_name) from a different file by an assembly instruction
> (j symbol_name).However I also declared the symbol as global(.globl
> symbol_name) but still it didnot worked.
You need to tell the assembler in the file which references the symbol
that it's out there.  Use extern, EXTRN or whatever directive your
assembler supports for this purpose.

> The Symbol was defined as follows:
> LEAF(symbol_name)
>       /*some assembly instructions*/
> END(symbol_name)
What assembler uses these syntactic constructs?

  Leslie

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Re: Unable To Jump To Undefined Symbol

[joy merwin monteiro]

yup, as leslie pointed out, you need an EXTRN directive so that
undefined refernces are handled by the linker. and what is LEAF, END ???

On 3/14/06, Deepak Pandey <deepak.pandey@wipro.com> wrote:
> Hi,
>   I got a compilation problem saying UNABLE TO JUMP TO UNDEFIND SYMBOL
> while compiling a code in which I tried to jump to a symbol(symbol_name)
> from a different file by an assembly instruction (j symbol_name).However
> I also declared the symbol as global(.globl symbol_name) but still it
> didnot worked.
> The Symbol was defined as follows:
>          LEAF(symbol_name)
>      /*some assembly instructions*/
>      END(symbol_name)
> Thanks in Advance.
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