From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Koller Date: Wed, 12 Dec 2007 12:17:43 +0100 Subject: [U-Boot-Users] [PATCH] Fix linker scripts: add NOLOAD atribute to .bss/.sbss sections In-Reply-To: <14285357.post@talk.nabble.com> References: <1197026214-31034-1-git-send-email-wd@denx.de> <20071207072815.4be2a59c@weaponx> <14285357.post@talk.nabble.com> Message-ID: <475FC357.3000507@anagramm.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de brino schrieb: > Hi All, > > This fix doesn't work with binutils-2.18. I'm building u-boot for the amcc > yosemite board using cygwin and cross binutils-2.18/gcc-4.2.2 for a > powerpc-eabi target. Yes, binutils-2.18 have this broken. binutils-2.17 work fine. > The linker complains that "section .text can't be > allocated in segment 0." The .bss section is by default a NOLOAD section > with binutils-2.18 meaning it occupies no space in the file. However, the > .bss section is an ALLOC section meaning it does occupy space in target > memory. The linker runs an error check to make sure all sections will > fit within the file and all sections will fit within target memory. All > sections > do fit within the file, however the sections do not fit within target memory > because of the wrap around end of memory. > > We could definitely drop the TEXT_BASE address lower which would fix > the problem, but isn't ideal since the image would take up more flash for > no reason. We could link with TEXT_BASE=0 and then burn it to flash at > address 0xFFF80000 (this is where the current TEXT_BASE is for the > yosemite board). Whats the reason it's linked at 0xFFF80000 anyway? > Is there an elf loader which burns it into flash? There's also the 'AT' > attribute in the linker script which may help, however, I don't quite > understand the use of it yet. Any suggestions on how to approach this? I am about to verify the latest binutils-snapshot. There have been the following patch included: http://sourceware.org/ml/binutils/2007-11/msg00235.html which should fix that issue. Please be patient... I'll give you an update ASAP. Regards, Clemens Koller __________________________________ R&D Imaging Devices Anagramm GmbH Rupert-Mayer-Stra?e 45/1 Linhof Werksgel?nde D-81379 M?nchen Tel.089-741518-50 Fax 089-741518-19 http://www.anagramm-technology.com