Thank you. I made use of one of the linux cross reference sites. Though unless I don't know how to effectively use them trying to track the history of a function, typdef, define, .. is not particularly easy using lxr.
Grant's sugestion with git was closer to what I was looking for - except that in some instances needed to go back farther than it would take me.. Jean-Christophe Dubois wrote: > Hi David, > > You could try the various "linux cross reference" web site out there. It is > not necessarily complete (some linux version might be missing) but it can be > usefull to lookup if some symbols/define/typedef were available in a > particular Linux version. > > Have a look there. > > http://free-electrons.com/community/kernel/lxr > > Regards > > JC > > On Wednesday 05 December 2007 17:17:25 David H. Lynch Jr. wrote: > >> This might be slightly OT here, but would anyone know where there >> might be a reference that indicates at precisely what version a given >> symbol either appeared or disappeared within the Linux kernel ? >> >> As an example if a driver is supposed to work for 2.6 and 2.4 and >> uses sysfs, or cdev, or alloc_chr_dev_region or ... >> How can one tell at what point that api or symbol appeared so that >> the proper conditionals appear within the driver. >> >> The last one that bit me was I made a collection of casting changes >> to address 64bit vs. 32bit targets, and found that using the C99 fixed >> size types - uint32_t, ... made life much more pleasant, after putting >> them I nobody else could build because uintptr_t did not appear until >> 2.6.24, and I still have not figured out exactly when uint32_t etc. >> appeared. >> >> I would think there ought to be some resource besides group memory >> to look this up ? >> Is there a way to use git to look back through the history of a >> symbol rather than a file. >> > > > -- Dave Lynch DLA Systems Software Development: Embedded Linux 717.627.3770 [EMAIL PROTECTED] http://www.dlasys.net fax: 1.253.369.9244 Cell: 1.717.587.7774 Over 25 years' experience in platforms, languages, and technologies too numerous to list. "Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction." Albert Einstein _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded