Le 04/10/2010 10:28, Joakim Tjernlund a écrit : >> >> Le 04/10/2010 09:36, Joakim Tjernlund a écrit : >> >>> However, I think we will loose the possibility to add "link once, burn and >> run anywhere" >>> feature I impl. once(but it was at the time deemed to intrusive) if >>> we skip -fPIC and go for the linker -pie relocation. >> >> On ARM at least, I don't think so. From what I see, the -pie ld option >> without the -fPIC/-fPIE compiler option alone builds a .rel.syn table >> that contains all necessary fixes to mve the code anywhere. > > hmm, maybe my memory fails me but doesn't these relocs change the > code to relocate accesses? While in flash you can't do that. > Perhaps this is fixable too with the LINK_OFF method I impl. > but memory fails me as it was quite some time ago. > > Jocke
Actually the principle is to link with TEXT_BASE equal to the NOR FLASH location of the image [1] so that relocation is not needed there. Only when you move the code to RAM do you need relocation. [1] which voids my idea of setting TEXT_BASE to 0, btw, but that does not matter much anyway. Amicalement, -- Albert. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
