qemu-options: Bail out on unsupported options instead of silently ignoring them

The dangling remainder of the -tdf option revealed a deficiency in our
option parsing: Options that have been declared, but are not supported
in the switch-case statement in vl.c and not handled in the OS-specifc
os_parse_cmd_args() functions are currently silently ignored. We should
rather tell the users that they specified something that we can not
handle, so let's print an error message and exit instead.

Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1525453270-23074-3-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Thomas Huth 2018-05-04 19:01:07 +02:00 committed by Paolo Bonzini
parent 281b95231d
commit 1217d6ca2b
4 changed files with 12 additions and 5 deletions

5
vl.c
View file

@ -4033,7 +4033,10 @@ int main(int argc, char **argv, char **envp)
}
break;
default:
os_parse_cmd_args(popt->index, optarg);
if (os_parse_cmd_args(popt->index, optarg)) {
error_report("Option not supported in this build");
exit(1);
}
}
}
}