Re: Elfutils segfault on IA64

[Kurt Roeckx <kurt@roeckx.be>]

On Wed, Oct 02, 2013 at 01:12:44PM -0500, Patrick Baggett wrote:
> OK, here's what I get when I run that test in GDB:
> 
> Program received signal SIGSEGV, Segmentation fault.
> dwarf_frame_register (fs=0x600000000000be00, regno=<optimized out>,
>     ops_mem=0x60000fffffffb2d0, ops=0x60000fffffffb2c8,
>     nops=0x60000fffffffb2c0) at dwarf_frame_register.c:105
> 105             get_uleb128 (block.length, p);
> (gdb) bt
> #0  dwarf_frame_register (fs=0x600000000000be00, regno=<optimized out>,
>     ops_mem=0x60000fffffffb2d0, ops=0x60000fffffffb2c8,
>     nops=0x60000fffffffb2c0) at dwarf_frame_register.c:105
> #1  0x4000000000001900 in print_register (arg=<optimized out>, regno=1,
>     setname=0x20000000004c9b18 "integer", prefix=0x20000000004c8890 "",
>     regname=0x60000fffffffb328 "r1", bits=-19768, type=675872) at
> addrcfi.c:100

This bits=-19768 clearly looks wrong.  I would guess that should
say 32.

The type really should also be DW_ATE_signed (5).

Can you set a breakpoint in ppc_register_info?
dwfl_module_register_names should be calling that
hook.


Kurt