Re: [Qemu-devel] [PATCH 1/4] tcg: Add debug_info to JIT ELF image.

[Avi Kivity]

On 03/24/2012 07:47 PM, Richard Henderson wrote:
> This allows us to actually supply a function name in softmmu builds;
> gdb doesn't pick up the minimal symbol table otherwise.  Also add a
> bit of documentation and statically generate more of the ELF image.
>
>

Looks like this is the cause of

# file /usr/local/bin/qemu-system-x86_64
/usr/local/bin/qemu-system-x86_64: ELF 64-bit LSB shared object, x86-64,
version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux
2.6.32, not stripped
# gdb -p `pgrep qemu`
<blurb>
Attaching to process 2119
Reading symbols from /usr/local/bin/qemu-system-x86_64...done.
Unable to read JIT descriptor from remote memory!
(gdb) bt
#0  0x00007f4a1257cae5 in ?? ()
#1  0x0000000000000000 in ?? ()
(gdb)

-- 
error compiling committee.c: too many arguments to function