> On Sep 8, 2015, at 5:18 AM, Phil Blundell <[email protected]> wrote: > > On Tue, 2015-09-08 at 13:44 +0200, Umut Tezduyar Lindskog wrote: >> Can 32 bits ISA handle year 2038 problem in openembedded? > > Not generically. But this is not an OE-level problem; the issue is more > that the underlying libraries and kernel ABIs are not currently > Y2038-safe. Fixing this is not really within the scope of OE and is > more a matter for the respective upstream maintainers to deal with. > > See for example some previous discussion of the linux kernel > implications at http://lwn.net/Articles/643407/ > >> Our ISA is 32 bits and we are using relatively new kernel with >> relatively old glibc (2.15). We are using RTC chips which come with a >> random date/time initialized. We started seeing boot problems in >> systemd if the random value of RTC is newer than 2038. > > If this is all you're concerned about and you don't seriously expect > your product to be still in use in 2038 then you could add a sanity > check at bootup to reset the clock to some reasonable default if the > value in the RTC is either known to be in the past or is implausibly far > in the future. > > If you do need full Y2038 support (which wouldn't be totally > unreasonable, given that the end of the epoch is now less than 25 years > away and at least some of us will probably live long enough to see it!) > then you would need to do some more substantial development work and you > should probably contact linux-kernel and/or libc-alpha in the first > instance. Or update to a natively 64-bit system. >
there might be a possibility of writing a compatibility handling of 32bit time_t and switch to using 64bit time_t even on 32bit systems much like netbsd or openbsd. There are patches floating around for kernel try them out. > p. > > > -- > _______________________________________________ > Openembedded-core mailing list > [email protected] > http://lists.openembedded.org/mailman/listinfo/openembedded-core
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