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[Qemu-devel] QEMU via GDB


From: Davide
Subject: [Qemu-devel] QEMU via GDB
Date: Fri, 21 Oct 2011 08:29:31 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20111001 Thunderbird/7.0.1

Dear all,
I am trying to debug QEMU via GDB.


I configured and compiled QEMU with debugging flags, i.e.,
# CFLAGS="-g3 -O0" ./configure --disable-gfx-check


and run gdb:


# gdb ./i386-linux-user/qemu-i386


(gdb) break main
(gdb) run

Starting program: /home/test/femu/i386-linux-user/qemu-i386
Failed to read a valid object file image from memory.
Warning:
Cannot insert breakpoint 1.
Error accessing memory address 0x2f7df: Input/output error.


Is there any extra flag to be specified with the GDB for QEMU debugging? I am wondering if the QEMU virtual machine creates any problem to the GDB virtual machine.


Thanks.


G.



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