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Re: [Qemu-devel] [PULL v2 00/22] QOM CPUState patch queue 2015-07-07

From: Peter Maydell
Subject: Re: [Qemu-devel] [PULL v2 00/22] QOM CPUState patch queue 2015-07-07
Date: Wed, 8 Jul 2015 12:33:54 +0100

On 7 July 2015 at 18:16, Andreas Färber <address@hidden> wrote:
> Hello Peter,
> This is my QOM CPU patch queue. Please pull.
> Note: For time reasons I did not give this queue as much testing as usual,
> in particular BSD and non-x86 KVM hosts were not covered.
> Regards,
> Andreas
> Cc: Peter Maydell <address@hidden>
> Cc: Eduardo Habkost <address@hidden>
> Cc: Peter Crosthwaite <address@hidden>
> The following changes since commit f2562fbb7ac54d597cfe05f613d30296d1850d1b:
>   Merge remote-tracking branch 'remotes/stefanha/tags/net-pull-request' into 
> staging (2015-07-07 15:48:49 +0100)
> are available in the git repository at:
>   git://github.com/afaerber/qemu-cpu.git tags/qom-cpu-for-peter
> for you to fetch changes up to cf6f1442257d53cf617545dd150efe26771ec31c:
>   disas: cris: QOMify target specific disas setup (2015-07-07 18:35:39 +0200)
> ----------------------------------------------------------------
> QOM CPUState and X86CPU
> * Further QOM'ification of CPU initialization
> * Propagation of CPUState arguments and elimination of ENV_GET_CPU() usage
> * cpu_set_pc() abstraction
> * CPUClass::disas_set_info() hook

I'm afraid this seems to break ppc linux-user somehow:

e104462:trusty:linux-user-test-0.3$ gdb --args
-L ./gnemul/qemu-ppc ppc/ls -l dummyfile
GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
Copyright (C) 2014 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-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
Find the GDB manual and other documentation resources online at:
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from
(gdb) handle SIGUSR1 pass noprint nostop
Signal        Stop      Print   Pass to program Description
SIGUSR1       No        No      Yes             User defined signal 1
(gdb) r
Starting program:
-L ./gnemul/qemu-ppc ppc/ls -l dummyfile
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffff7ffc700 (LWP 22653)]

Program received signal SIGSEGV, Segmentation fault.
0x000000006060dd85 in static_code_gen_buffer ()
(gdb) bt
#0  0x000000006060dd85 in static_code_gen_buffer ()
#1  0x00000000600065e3 in cpu_tb_exec (cpu=0x6268ceb0,
    tb_ptr=0x6060dd50 <static_code_gen_buffer+2992>
"A\213n\374\205\355\017\205", <incomplete sequence \307>)
    at /home/petmay01/linaro/qemu-for-merges/cpu-exec.c:200
#2  0x0000000060006fbc in cpu_ppc_exec (cpu=0x6268ceb0) at
#3  0x0000000060049dc2 in cpu_loop (env=0x62695100) at
#4  0x000000006004cac5 in main (argc=6, argv=0x7fffffffe3f8,
    at /home/petmay01/linaro/qemu-for-merges/linux-user/main.c:4408

(this is with the test stuff from the linux-user-test tarball
on the wiki).

-- PMM

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