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vl: Error messages need to go to stderr, fix some 

We print a few fatal error messages to stdout instead of stderr.
Reproducer:

    $ qemu-system-x86_64 -g 1024x768
    Option g not supported for this target
    $ qemu-system-x86_64 -g 1024x768 >/dev/null

Fix by printing them with error_report().  This also improves the messages.
The above one becomes

    qemu-system-x86_64: -g 1024x768: Option not supported for this target

Reported-by: Tobi {github.com/tobimensch}
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1464683498-28779-1-git-send-email-armbru@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
This commit is contained in:
Markus Armbruster 2016-05-31 10:31:38 +02:00
parent 5edbd4e304
commit da002526ac
1 changed files with 4 additions and 4 deletions
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8
vl.c
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@ -3068,7 +3068,7 @@ int main(int argc, char **argv, char **envp)
popt = lookup_opt(argc, argv, &optarg, &optind);
if (!(popt->arch_mask & arch_type)) {
printf("Option %s not supported for this target\n", popt->name);
error_report("Option not supported for this target");
exit(1);
}
switch(popt->index) {
@ -3846,21 +3846,21 @@ int main(int argc, char **argv, char **envp)
break;
case QEMU_OPTION_xen_domid:
if (!(xen_available())) {
printf("Option %s not supported for this target\n", popt->name);
error_report("Option not supported for this target");
exit(1);
}
xen_domid = atoi(optarg);
break;
case QEMU_OPTION_xen_create:
if (!(xen_available())) {
printf("Option %s not supported for this target\n", popt->name);
error_report("Option not supported for this target");
exit(1);
}
xen_mode = XEN_CREATE;
break;
case QEMU_OPTION_xen_attach:
if (!(xen_available())) {
printf("Option %s not supported for this target\n", popt->name);
error_report("Option not supported for this target");
exit(1);
}
xen_mode = XEN_ATTACH;