Messages in this thread | | | Date | Mon, 16 Apr 2001 14:33:21 +0000 | From | Pavel Machek <> | Subject | Re: List of all-zero .data variables in linux-2.4.3 available |
| |
Hi!
> > I am aware of a couple of cases where code relied on static > > variables being allocated contiguously, but, in both cases, those > > variables were either all zeros or all non-zeros, so my proposed > > change would not break such code. > > Continuous placement is not the only property defined by > initialization. There are many more. You cannot change this since it > will quite a few programs and libraries and subtle and hard to > impossible to identify ways. Simply educate programmers to not > initialize.
Unless ansiC specifies such behaviour, such code is buggy. And buggy code should be fixed, not be used as argument against optimalization. [Of course, you can turn off that optimalization for buggy code, if code is too ugly to fix.]
-- Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt, details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |