On Fri, Apr 20, 2018 at 12:41 PM, Nicholas Piggin <npiggin@xxxxxxxxx> wrote: > On Fri, 20 Apr 2018 12:00:49 +0200 > Mathieu Malaterre <malat@xxxxxxxxxx> wrote: > >> On Fri, Apr 20, 2018 at 9:34 AM, Nicholas Piggin <npiggin@xxxxxxxxx> wrote: >> > This requires further changes to linker script to KEEP some tables >> > and wildcard compiler generated sections into the right place. This >> > includes pp32 modifications from Christophe Leroy. >> > >> > When compiling powernv_defconfig with this option: >> > >> > text data bss dec filename >> > 11827621 4810490 1341080 17979191 vmlinux >> > 11752437 4598858 1338776 17690071 vmlinux.dcde >> > >> > Resulting kernel is almost 400kB smaller (and still boots). >> > >> > [ppc32 numbers here] >> >> ^^^ >> >> Do you want somebody else to provide those numbers ? > > If you have a booting kernel, yes some more numbers would be good. I've used /boot/config-4.15.0-2-powerpc from my current debian package. Rebuild master with and without option, boot ok, load/unload module ok. $ size nick/vmlinux.with* text data bss dec hex filename 7386425 2364370 1425432 11176227 aa8923 nick/vmlinux.with 7461457 2475122 1428064 11364643 ad6923 nick/vmlinux.without This is not clear why with option the size of kernel is slightly bigger: $ du -sk nick/vmlinux.with* 124488 nick/vmlinux.with 124004 nick/vmlinux.without > Thanks, > Nick
