[U-Boot] [PATCHv3] mpc83xx: Add -fpic relocation support

[Joakim Tjernlund]

> From: Joakim Tjernlund <Joakim.Tjernlund at transmode.se>
> To: u-boot at lists.denx.de, Scott Wood <scottwood at freescale.com>, Kim 
Phillips 
> <kim.phillips at freescale.com>
> Cc: Joakim Tjernlund <Joakim.Tjernlund at transmode.se>
> Date: 2010/10/13 23:12
> Subject: [U-Boot] [PATCHv3] mpc83xx: Add -fpic relocation support
> Sent by: u-boot-bounces at lists.denx.de
> 
> This adds relocation of .got entries produced
> by -fpic. -fpic produces 2-3% smaller code and
> is faster. Unfortunately gcc promotes -fpic to
> -fPIC when -mrelocatable is used so one need a very
> small patch to gcc too(sent upstream).
> 
> -fpic puts its GOT entries in .got section(s) and
> linker defines the symbol _GLOBAL_OFFSET_TABLE_ to point
> to the middle of this table. The entry at _GLOBAL_OFFSET_TABLE_-4
> contains a blrl insn which is used to find the table's
> real address by branching to _GLOBAL_OFFSET_TABLE_-4.

Ping?

 Jocke