[Crash-utility] [PATCH] add support to "virsh dump-guest-memory"(qemu memory dump)

Hello Dave, I made this patch to make crash can analyze core dump file created by "virsh dump-guest-memory"(I will call it "qemu memory dump" below). In my test(guest OS: RHEL6.2 x86 & x86_64), the patch works well with dump files created by "qemu memory dump". However, after some investigation, I think I need to discuss further works with you. The core dump created by qemu memory dump is similar to kdump. The distinctness only focuses on note sections. The former one gets note sections with a name called "QEMU". 1. Some registers' information stored in "CORE" note sections, needed by crash, also stores in "QEMU" note sections. I think it's not reasonable to replace them. What do you think? 2. Other registers which are only stored in "QEMU" note sections are not directly used in crash. I will continue investigating the use of these registers. And if you give some suggestion, it will be helpful. -- -- Regards Qiao Nuohan