Am 25.02.2013 15:22, schrieb Jan Kiszka: > On 2013-02-25 15:15, Stefan Hajnoczi wrote: >> On Sun, Feb 24, 2013 at 02:03:51PM +0100, Jan Kiszka wrote: >>> Hi, >>> >>> running qemu-system-xxx under recent gdb gives me this instead of >>> starting QEMU: >>> >>> GNU gdb (GDB) 7.5.1 >>> Copyright (C) 2012 Free Software Foundation, Inc. >>> License GPLv3+: GNU GPL version 3 or later >>> <http://gnu.org/licenses/gpl.html> >>> This is free software: you are free to change and redistribute it. >>> There is NO WARRANTY, to the extent permitted by law. Type "show copying" >>> and "show warranty" for details. >>> This GDB was configured as "x86_64-unknown-linux-gnu". >>> For bug reporting instructions, please see: >>> <http://www.gnu.org/software/gdb/bugs/>... >>> Reading symbols from qemu-system-arm...done. >>> (gdb) r >>> Starting program: qemu-system-arm >>> Warning: >>> Cannot insert breakpoint -1. >>> Error accessing memory address 0x34e770: Input/output error. >>> >>> >>> Commenting out the JIT debug information or using a much older gdb >>> is currently the only option to debug QEMU here. It's affecting non-TCG >>> operation, too. Any ideas? >> >> Works for me with GNU gdb (GDB) Fedora (7.5.1-32.fc18). >> >> http://sourceware.org/bugzilla/show_bug.cgi?id=14585 > > Hmm, maybe fedora has a patch or a different configuration (I'm using > vanilla gdb).
FWIW I've been using vanilla powerpc-eabi-gdb 7.5.1 for OpenBIOS debugging and I got a near-constant feed of runtime warnings and a few errors and sometimes a segfault on quit, so my trust in 7.5.1 usability is rather limited... it was mostly harmless in my case though. Andreas -- SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
