Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [PATCH 0/5] ARM: orion5x/dove/mv78xx0 multiplatform | Date | Thu, 10 Dec 2015 21:59:51 +0100 |
| |
On Thursday 10 December 2015 20:03:18 Detlef Vollmann wrote: > On 12/10/15 14:43, Arnd Bergmann wrote: > > On Thursday 10 December 2015 14:18:11 Arnd Bergmann wrote: > >> On Thursday 10 December 2015 13:56:05 Detlef Vollmann wrote: > > >>> The bad news: > >>> My own config (which is massivly stripped down) produces a kernel > >>> image that's more than 26K bigger than on v4.4-rc3 without any > >>> added functionality. > >>> The DNS-323 is extremly constrained in space (the whole system > >>> including boot loader, kernel and filesystem has to fit into 8M flash). > >>> Any ideas how I can get rid of this additional overhead? > >> > >> Can you send me your config file? I can have a look. > >> > > > > I've done a quick check with an allnoconfig-like test and it seems that > > CONFIG_OF is weighing in at around 86K here, with all the other options > > it pulls in, comparing an allnoconfig kernel for DS-323 with one that > > has CONFIG_OF enabled as well. > > > > The multiplatform kernel also enables CONFIG_OF unconditionally, but is > > otherwise a little smaller than the mach-orion5x based one: > > > > text data bss dec hex filename > > 942144 64112 17648 1023904 f9fa0 build/tmp/vmlinux-orion-allno > > 1027516 54052 20824 1102392 10d238 build/tmp/vmlinux-multi-plus-orion > > 1025320 66020 18744 1110084 10f044 build/tmp/vmlinux-orion-plus-of > > > > The diff below shows all the differences between orion-allno and > > multi-plus-orion. > How did you get the orion-allno config and how did you get it compiled? > I tried to apply your changes to my config and compile it, but > it started silentoldconfig which introduced back 'ARCH_MULTIPLATFORM'
The first and third row are without my patches, once they are applied, ARCH_ORION becomes a sub-option of ARCH_MULTIPLATFORM.
Arnd
| |