Joakim Tjernlund wrote: > > Graeme Russ <graeme.r...@gmail.com> wrote on 2010/03/27 12:54:03: >> Joakim Tjernlund wrote: >>> I did a few months ago for MPC83xx and sent it to the list. There was some >>> discussion but in the end it wasn't applied because it was too invasive. >>> PPC is especially bad as it needs to relocate string literals too. >>> >> To implement full relocation, I simply need to add an additional parameter >> to this function which provides the 'link versus load' offset which will >> get applied to the 'load versus run' offset calculation > > Are we talking about the same thing? when you say "does not > need to be loaded at TEXT_BASE" you need something like my LINK_OFF patch, > otherwise I don't see how you can boot out of flash otherwise. >
I realise now that we are not talking about the same thing. The x86 port always relocates into (and runs from) RAM. Only a very small stub is run from flash (SDRAM setup and sizing, copy to RAM, process relocation entries etc). This stub can be made fully relocatable while running from Flash (with a few tricks) By adjusting all position dependent code after copying into RAM, LINK_OFF is no longer needed Graeme _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
