On 12/5/07, David H. Lynch Jr. <[EMAIL PROTECTED]> 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 'gitk' tool allows you to search for the addition or removal of a string. You > > 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. [EMAIL PROTECTED]:~/hacking/linux-2.6$ grep "uint32_t" include/* -r | grep typedef include/linux/types.h:typedef __u32 uint32_t; [EMAIL PROTECTED]:~/hacking/linux-2.6$ git log -p include/linux/types.h | vim - (Search for the string uint32_t) Looks like it was there before Linus started using git. > > > > -- > 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 > -- Grant Likely, B.Sc., P.Eng. Secret Lab Technologies Ltd. [EMAIL PROTECTED] (403) 399-0195 _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
