Re: internal-error: arm_elf_osabi_sniffer

[Richard Earnshaw <rearnsha@gcc.gnu.org>]

On Wed, 2004-08-11 at 22:50, Nagender Telkar wrote:
> 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?
> 

Not yet.  Somebody's got to add support for the new ABI, and until GCC
has it (that' getting there) there isn't as much pressure for updating
GDB.

GDB is primarily a debugger for debugging GCC generated code, support
for other compilers tends to come second.

R.
> 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.
> >