[RFC] arm: add __initbss section attribute

[arnd@arndb.de (Arnd Bergmann)]

On Tuesday 13 October 2015 17:51:32 yalin wang wrote:

> > 32	__earlycon_table_sentinel
> > 200	__earlycon_of_table_sentinel
> > 6	__irf_end
> > 
> > 
> > 26398 total
> i am curious about your scripts ,
> could you show me ?

I was using some ad-hoc command line tricks, including

objcopy  -j .init.data  build/multi_v7_defconfig/vmlinux   /tmp/initdata
nm initdata  | sort -n | { read start b sym ; while read a b c ; do objdump -Dr --start-address=0x$start --stop-address=0x$a initdata > initdata.d/$sym  ; start=$a ; sym=$c  ; done }
(some manual sorting to delete the files that have pre-initialized symbols)
sum=0 ; nm /tmp/initdata  | sort -n | { read start b sym ; while read a b c ; do test -e ../$sym  && { echo $[0x$a - 0x$start]\      $sym  ; sum=$[$sum + $[0x$a - 0x$start]] ; } ; start=$a ; sym=$c ; done ; echo $sum;}

I'm sure there are better ways to do this, and the manual step I used at
first was faulty.

	Arnd