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Date: Fri, 01 Sep 2006 12:44:00 -0000
From: "Cai Qian" <caiqian@gmail.com>
To: gdb@sourceware.org
Subject: gdbserver with X86_64
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Hi,

I tried to use gdbserver in AMD64 machine. I have done the following,

1)  # Compile example C code to generate a 64bit binary.
cat > hello.c<<EOF

#include <stdio.h>

int
main (void)
{
    printf ("Hello World\n");
    return 0;
}

EOF
gcc -g hello.c -o hello

2)  # Run gdbserver in localhost.
gdbserver localhost:22222 hello

3) # Connect to gdbserver locally.
gdb
...
"This GDB was configured as x86_64-linux-gun"
(gdb) target remote localhost:22222

OUTPUT:
on client side, I have gotten,

Remote debugging using localhost:22222
Remote register badly formatted:
T0506:0000000000000000;07:50619fffff7f0000;10:70ea33b3202b0000;
here: 0000000;07:c0e095ffff7f0000;10:700a3d4b192b0000;

on server side, I have gotten,

Remote debugging from host 127.0.0.1
readchar: Got EOF
Remote side has terminated connection. GDBserver will reopen the connection
Listening on port 22222

I have also tried on a i386 box. I works fine. Is it a bug or I have
done something wrong?

Qian