On Wednesday 30 July 2008 12:30:42 Riyas Y. wrote: > Windows follows LLP64 standard in 64 bit machine. > > Type Platform Size > int 32 bit windows 32 bit > long 32 bit windows 32 bit > size_t 32 bit windows 32 bit > pointer 32 bit windows 32 bit > > int 64 bit windows 32 bit > long 64 bit windows 32 bit > size_t 64 bit windows 64 bit > pointer 64 bit windows 64 bit > > In Linux long is 64 bit in 64 bit architecture while > in Windows long is 32 bit in 64 bit architecture.
Fine, that doesn't make any difference to Bacula. > > So when we compile the bacula.dll project in visual studio after turning > on 64 bit portability issues, > We get data loss warnings for conversions from > size_t to int, long > pointer to int, long (for eg. In smartall.c) You will have to give *explicit* references. In my opinion there are no conversion of pointer to int or long except in a few of the debug printouts where loss of size is not at all important. As time goes by I have been making even the debug output size independent. The fact that you are getting these warnings implies that either MS C++ is more picky about certain operations (a bit of a surprise because gnu g++ is *very* picky), or that the build is not going well because of differences in Microsoft header files. > > > We could successfully backup and restore using the ported 64 bit windows > bacula client. > We are still unsure whether these warnings will cause some serious > problems later. I cannot tell you because I have not seen the warnings. > > Similarly we removed the _USE_32BIT_TIME_T preprocessor for 64 bit > windows architecture. > We are also unsure whether this will cause any problems. I have never seen the _USE_32BIT_TIME_T preprocessor define, so I cannot comment. In general (maybe not 100%) Bacula can accept time_t values greater than 32 bits. However, removing the #define is for the moment rather useless because we have many years to go before time overflows. Since you are using Microsoft C++, which we do not support, there very well could be some 32/64 bit problems depending on how they define things. Using a different C compiler requires porting and needs very careful testing. I personally would not run such a program in production without careful examination of a lot of things and testing for at least a month. Regards, Kern > > Regards, > Riyas > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Kern > Sibbald > Sent: Wednesday, July 30, 2008 2:49 PM > To: [email protected] > Cc: Martin Simmons > Subject: Re: [Bacula-devel] Bacula Windows Client 64bit build. > > On Wednesday 30 July 2008 10:57:08 Martin Simmons wrote: > > >>>>> On Wed, 30 Jul 2008 09:07:24 +0200, Kern Sibbald said: > > > > > > - In general there is nothing wrong with referencing "int"; on a 64 > > bit > > > > system "int" is 64 bits. > > > > I hope Bacula doesn't assume that, because "int" is very likely to be > > 32 > > > bits on 64 bit platforms! The "long" type is usually 64 bits, but > > beware > > > that it is 32 bits on 64 bit Windows. > > No, we make no assumptions about the size of int other than it is at > least 32 > bits. > > Where size really counts, as you surely know, we use our own platform > independent definitions such as int32_t, uint32_t, int64_t, uint64_t, > boffset_t, ... > > > > > ------------------------------------------------------------------------ > - > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge > Build the coolest Linux based applications with Moblin SDK & win great > prizes > Grand prize is a trip for two to an Open Source event anywhere in the > world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Bacula-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/bacula-devel > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge Build the coolest Linux based applications with Moblin SDK & win > great prizes Grand prize is a trip for two to an Open Source event anywhere > in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Bacula-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/bacula-devel ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Bacula-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/bacula-devel
