On Thu, 2008-07-24 at 10:37 -0700, vb wrote: > On Thu, Jul 24, 2008 at 9:57 AM, Haavard Skinnemoen > <[EMAIL PROTECTED]> wrote: > > Kenneth Johansson <[EMAIL PROTECTED]> wrote: > >> you have to > >> read the gcc code to understand what the -mrelocatable option really do. > > > > Plus it's only defined for PowerPC. What do we do on the 11 other > > architectures? > > > > We could build u-boot as a shared library I guess, but that feels a bit > > weird... > > > > I ran a quick experiment with -mrelocate, compiled a module with it > and then objdump -D its contents, it seems to do exactly what I wanted > - stores addresses of pointers to adjust into the fixit section. > > I guess the least intrusive alternative would be to compile the ported > code with this option, and then add a check to the u-boot function > dealing with GOT adjustments to see if the fixit section is nonempty. > If so - relocate .fixit in addition to GOT. > > But as you pointed out, this would work on ppc only (with a 'good' > compiler), and still remains to be proven, I will get to it a bit > later.
I have run u-boot with everything compiled with -mrelocatable and normal relocation fixup code removed so I know it works fine. So consider it proven. But since it apparently is a problem in some situation the best is probably to make it a configuration option. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
