On Tue, Nov 19, 2013 at 10:09:44AM +0100, Michal Simek wrote: > Hi Albert, > > I have just bisect why on the latest kernel hello world example doesn't work > and I have end up in this patch too. After reverting hello world example > is working. > > Also I would like to know if we have still bootm support for standlone > http://www.denx.de/wiki/view/DULG/UBootStandalone#Section_5.12.3. > Because it is not working for me with error > "ERROR: booting os 'U-Boot' (17) is not supported" > and I can't see IH_OS_U_BOOT in boot_os table in cmd_bootm.c > > I have created image like this. > ./tools/mkimage -n "hello" -A arm -O u-boot -T standalone -C none -a c100000 > -d examples/standalone/hello_world.bin -v /tftpboot/hello.ub
Let's get Albert on CC here, since, yeah, this is a problem... > On 11/18/2013 12:26 PM, Leif Lindholm wrote: > > Hi, > > > > Commit fe1378a - "ARM: use r9 for gd" - broke the ABI for users of the > > U-Boot API on ARM. Users I am aware of are GRUB and the FreeBSD loader. > > Since I only spotted this on Saturday, this code is well and truly in > > the wild, so any users of the API will need to preserve both r8 and r9 > > on syscalls for the foreseeable future (which is not the end of the > > world). > > > > Sometime last year I proposed a change to make the API syscall entry > > and exit points responsible for maintaining full procedure-call standard > > compliance, although the patch I provided was on the hackier side of > > good (and probably wrong). > > > > I would now like to ask in a more open-ended way - is there any chance > > that we could solve this in a generic way, such that consumers of the > > API need not be aware of U-Boot internal ABI changes? > > > > If the assumtions that the global data pointer is: > > a) a pointer > > b) writable > > are not both safe, then this could be achieved by arch-specific asm > > entry/exit points. > > > > / > > Leif > > _______________________________________________ > > U-Boot mailing list > > U-Boot@lists.denx.de > > http://lists.denx.de/mailman/listinfo/u-boot > > > > > -- > Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91 > w: www.monstr.eu p: +42-0-721842854 > Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/ > Maintainer of Linux kernel - Xilinx Zynq ARM architecture > Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform > > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot -- Tom
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