Re: [Qemu-devel] [PATCH 1/4] Add module infrastructure to QEMU

[Anthony Liguori <aliguori@us.ibm.com>]

Jean-Christophe PLAGNIOL-VILLARD wrote:
>> diff --git a/module.h b/module.h
>> new file mode 100644
>> index 0000000..5aa3eaa
>> --- /dev/null
>> +++ b/module.h
>> @@ -0,0 +1,41 @@
>> +/*
>> + * QEMU Module Infrastructure
>> + *
>> + * Copyright IBM, Corp. 2009
>> + *
>> + * Authors:
>> + *  Anthony Liguori   <aliguori@us.ibm.com>
>> + *
>> + * This work is licensed under the terms of the GNU GPL, version 2.  See
>> + * the COPYING file in the top-level directory.
>> + *
>> + */
>> +
>> +#ifndef QEMU_MODULE_H
>> +#define QEMU_MODULE_H
>> +
>> +#define module_init(function, priority)                                  \
>> +static void __attribute__((constructor)) qemu_init_ ## function(void) {  \
>> +   register_module_init(function, priority);                             \
>> +}
>> +
>> +#define module_exit(function, priority)                                  \
>> +static void __attribute__((constructor)) qemu_exit_ ## function(void) {  \
>>     
> constructor? ;-)
>   

Yes, that's intentional.  These functions just register functions, they 
don't actually call those functions.  This allows us to explicitly 
invoke the constructors/destructors when we want to instead of relying 
on gcc doing it before and after main.


-- 
Regards,

Anthony Liguori