Re: Internal error in GDB

[Daniel Jacobowitz <drow at mvista dot com>]

On Thu, Nov 14, 2002 at 05:34:05PM +1000, Steven Johnson wrote:
> Im getting the error:
> 
> Internal error: pc 0x0 in read in psymtab, but not in symtab.
> 
> from a very recent CVS build of GDB (As of 11th November).
> 
> It happens when I set breakpoints in an assembler file, that has been 
> assembled through GCC, using the C Preprocessor (.S file, not .s file).
> 
> It does nothing wrong, except pop up all the time and hence interfere 
> with debugging significantly. (Im using insight and have to keep 
> pressing OK to continue).
> 
> I searched the code and it seems to be coming from 
> symtab.c:find_pc_sect_symtab (last if in the function)
> 
> The comment in the code indicates that this error may want to stop GDB 
> cold. Thankfully it isn't, cause I seem to be getting it in error.
> 
> Also, the code here seems to be wrong, it prints the error, and then 
> proceeds to look it up anyway. As in:
> 
> if (ps->readin)
>   warning("Internal error: pc 0x%s in read in psymtab, but not in 
> symtab.",paddr_nz(pc));
> 
> s = PSYMTAB_TO_SYMTAB(s)
> 
> I would have expected, from the error, it not to try and 
> PSYMTAB_TO_SYMTAB, as it is saying it isn't in the SYMTAB. as in:
> 
> if (ps->readin)
>   warning("Internal error: pc 0x%s in read in psymtab, but not in 
> symtab.",paddr_nz(pc));
> else
>   s = PSYMTAB_TO_SYMTAB(s)
> 
> Anyway, what is going on here?  What do i need to do to my assembler 
> file to prevent this warning?

Do you have an assembler file you can post that triggers the warning? 
I'd like to see it.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer