Dear Darwin, In message <53763b78.6030...@broadcom.com> you wrote: > > 3. Fixed offset case: > CONFIG_SYS_TEXT_BASE = 0x88000020
You completely fail to respond to my repeated statement that a CONFIG_SYS_TEXT_BASE like this is bogus. I guess i give up on this. > Any section in the image that requires a particular alignment must have > that alignment respected after relocation. You cannot relocate to an > arbitrary address if it breaks the maximum image alignment requirement > after relocation. Who was it who asked why we had such unreasonable strict alignment requirements for the relocation address? > But if for some reason, the hardware ever required a 0x2000 (.align 13) > alignment, then the generic code's 0x1000 (.align 12) relocation > alignment would not work because the alignment after relocation would > not respect the .align 13 directive. We just haven't run into this issue Is this a theoretical or a practical question? Where exactly do you have such a use case? > yet and may never do so, but it is important to understand the > limitations of relocation relative to image alignment requirements. The > current hardcoded 4096 (0x1000) image relocation alignment just happens > to work and looks nice, that's all, but not by consideration of image > alignment. Ummm... experience from 15 years of PPCBoot / U-Boot history don't count here, I guess? > And if any text base alignment is less than the image's maximum > alignment requirement, the load will fail, and then we likely scratch > our heads and set the CONFIG_SYS_TEXT_BASE alignment higher until it works. CONFIG_SYS_TEXT_BASE should always be reasonable aligned. There is no good reason to add arbitrary small offsets like you do. I've explained to you a feww times before that you should include your header into the text segment, and the problem would be just gone. > But since most people just use higher alignments naturally, this issues > remain mostly hidden I think. Not hidden, they don't exist. Non-random sig this time. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de "UNIX was not designed to stop you from doing stupid things, because that would also stop you from doing clever things." - Doug Gwyn _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
