Messages in this thread |  | | Date | Mon, 27 Nov 2000 09:41:39 +0100 | From | Werner Almesberger <> | Subject | Re: [PATCH] removal of "static foo = 0" |
| |
Adam J. Richter wrote: > At the moment, I have started daydreaming about instead > writing an "elf squeezer" to do this and other space optimizations > by modifying objdump.
Hmm, this would require that gcc never calculates the location of an explicitly initialized static variable based on the address of another one. E.g. in
static int a = 0, b = 0, c = 0, d = 0;
... ... a+b+c+d ... ...
egcs-2.91.66 indeed doesn't seem to make this optimization on i386. (Maybe the pointer increment or pointer offset solution would actually be slower - didn't check.) But I'm not sure if this is also true for other versions/architectures, or other code constructs.
- Werner
-- _________________________________________________________________________ / Werner Almesberger, ICA, EPFL, CH Werner.Almesberger@epfl.ch / /_IN_N_032__Tel_+41_21_693_6621__Fax_+41_21_693_6610_____________________/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
|  |