Al Boldi wrote: > bari wrote: >> Who is or will be designing anything with only 2Mb (256KB) of Flash? >> It's difficult to even find Flash under 4Mb (512KB) in high volume. > > Even with 512kb you run a pretty tight ship. And that's most boards today. > > The idea here is to keep the LB-footprint as tiny as possible, and not to > bloat unnecessarily. Just think about it for a second: A multi-tasking, > multi-threaded kernel just to kexec. Wow, talk about bloat. > > But, there is another way: Have LB read the payload in raw from USB.
Eric got some pretty good results in stripping the Tiny1 Linux kernel down a few years ago. 220K compressed and 371K uncompressed. http://lkml.org/lkml/2004/1/4/10 Removing all the error messages from the kernel removed about 300k from it alone. Some recent projects that may be of interest: Kernel Size Tuning Guide: http://elinux.org/Kernel_Size_Tuning_Guide Open Test Lab of the CE Linux Forum - results of testing the size of the Linux kernel using different values for configuration options: http://testlab.celinuxforum.org/otlwiki/ConfigSizeTestResultsNutOct1 ~3Mb (375KB) is about the smallest I've seen with recent kernels I haven't even seen any ucLinux kernels striped down to this small a footprint. Embedded Linux Wiki: http://elinux.org/Main_Page -Bari -- linuxbios mailing list linuxbios@linuxbios.org http://www.linuxbios.org/mailman/listinfo/linuxbios
