From patchwork Fri Jun 10 12:17:05 2011
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Subject: fsdev - broken qemu-system-?
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
X-Patchwork-Id: 99888
Message-Id: <87vcwdev9a.fsf@linux.vnet.ibm.com>
To: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, qemu-devel@nongnu.org
Date: Fri, 10 Jun 2011 17:47:05 +0530

On Fri, 10 Jun 2011 12:12:33 +0200, "Edgar E. Iglesias" <edgar.iglesias@gmail.com> wrote:
> At least CRIS, Microblaze and lm32 are broken on latest git. Things fail with
> the following message:
> qemu-system-cris: there is no option group "fsdev"
> 
> Under GDB I see a segfault...
> 
> % gdb --args ~/src/c/qemu/git/build-qemu/cris-softmmu/qemu-system-cris -M axis-dev88 -kernel kimage -serial stdio
> GNU gdb (Gentoo 7.2 p1) 7.2
> Copyright (C) 2010 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-pc-linux-gnu".
> For bug reporting instructions, please see:
> <http://bugs.gentoo.org/>...
> Reading symbols from /home/edgar/src/c/qemu/git/build-qemu/cris-softmmu/qemu-system-cris...done.
> (gdb) run
> Starting program: /home/edgar/src/c/qemu/git/build-qemu/cris-softmmu/qemu-system-cris -M axis-dev88 -kernel kimage -serial stdio
> [Thread debugging using libthread_db enabled]
> qemu-system-cris: there is no option group "fsdev"
> 
> Program received signal SIGSEGV, Segmentation fault.
> qemu_opts_foreach (list=0x0, func=0x4fd210 <fsdev_init_func>, opaque=0x0, 
>     abort_on_failure=1) at /home/edgar/src/c/qemu/git/qemu/qemu-option.c:969
> 969         QTAILQ_FOREACH(opts, &list->head, next) {
> (gdb) bt
> #0  qemu_opts_foreach (list=0x0, func=0x4fd210 <fsdev_init_func>, opaque=0x0, 
>     abort_on_failure=1) at /home/edgar/src/c/qemu/git/qemu/qemu-option.c:969
> #1  0x00000000004ff05d in main (argc=7, argv=0x7fffffffdc28, 
>     envp=<value optimized out>) at /home/edgar/src/c/qemu/git/qemu/vl.c:3015
> (gdb) q
> A debugging session is active.
> 
>         Inferior 1 [process 1473] will be killed.
> 

Can you try this patch

diff --git a/fsdev/qemu-fsdev-dummy.c b/fsdev/qemu-fsdev-dummy.c
index 619e163..4e700dd 100644
--- a/fsdev/qemu-fsdev-dummy.c
+++ b/fsdev/qemu-fsdev-dummy.c
@@ -13,8 +13,16 @@
 #include <stdio.h>
 #include <string.h>
 #include "qemu-fsdev.h"
+#include "qemu-config.h"
 
 int qemu_fsdev_add(QemuOpts *opts)
 {
     return 0;
 }
+
+static void fsdev_register_config(void)
+{
+    qemu_add_opts(&qemu_fsdev_opts);
+    qemu_add_opts(&qemu_virtfs_opts);
+}
+machine_init(fsdev_register_config);