Re: internal-error: arm_elf_osabi_sniffer

[Nagender Telkar <ntelkar@gmail.com>]

Hello 

I was compiling my code with RVCT compiler from ARM. I had my debugger
working at assembly level with ADS1.2. Now, I want it to do the same
for RVCT compiled code.

Can it not happen?

Thank you,
Nagender

On Wed, 11 Aug 2004 22:43:12 +0100, Richard Earnshaw
<rearnsha@gcc.gnu.org> wrote:
> On Wed, 2004-08-11 at 21:45, Nagender Telkar wrote:
> > Hello,
> >
> > I am working on gdb 6.0.
> >
> > When I do an
> >
> > gdb> arm-elf-gdb helloworld.elf
> >
> > I get the following error.
> >
> > ../../insight-6.0.ori/gdb/arm-tdep.c:2747: internal-error: arm_elf_osabi_sniffer
> > : Unknown ARM EABI version 0x4000000
> > 
> You don't say so, but I guess you are compiling your code with ARM's
> RVDS compiler...
> 
> > I looked into the arm-tdep file in the gdb, it seems to be failing at
> > the function
> >
> > static enum gdb_osabi arm_elf_osabi_sniffer (bfd *abfd)
> >
> > where it gets
> >
> > unsgined int elfosabi = elf_elfheader (abfd)->e_ident[EI_OSABI];
> >
> > The elfosabi is getting set to ELFOSABI_NONE.
> >
> > Then it tries to get the eflags as
> >
> >  eflags = EF_ARM_EABI_VERSION(elf_elfheader(abfd)->e_flags);
> >
> > eflags is not getting set to EF_ARM_EABI_VER1, EF_ARM_EABI_VER2 or
> > EF_ARM_EABI_UNKNOWN.
> >
> > I think that is the problem. Thats the reason it gets to the internal error.
> 
> Yep.  GDB doesn't understand the EABI yet (even gdb 6.2 -- gdb 6.0
> predates the EABI, so has no chance).  Even if it got past this point
> you'd run into further problems.
> 
> R.
>