On Friday 26 March 2010 17:06:12 Phil Endecott wrote: > Florian Fainelli wrote: > > On Friday 26 March 2010 16:51:15 Phil Endecott wrote: > >> Florian Fainelli wrote: > >> > On Friday 26 March 2010 13:06:01 Phil Endecott wrote: > >> >> yajin wrote: > >> >> > The nano note's CPU does NOT have a fp. So it needs the kernel to > >> >> > emulate the fp instruction. > >> >> > >> >> OK, thanks. But presumably the OpenWRT kernel is already doing that > >> >> because the OpenWRT binaries run. Is there more than one FP > >> >> emulation mode, or something? (Any docs about this?) > >> > > >> > The OpenWrt kernel disables the in-kernel FPU emulator and produces > >> > software- floating point toolchains (-msoft-float). > >> > >> Thanks, I guessed it would be something like that. So presumably I > >> need to build a kernel (which is not fundamentally difficult, but I was > >> hoping to avoid having to make a cross-toolchain) - unless there is a > >> pre-built kernel somewhere that might work for this device? > > > > There are OpenWrt binaries for this device pre-built [1], but they > > include the kernel plus rootfilesystem, so you might want to compile a > > kernel of your own with the in-kernel FPU emulator turned on. > > > > [1]: http://downloads.openwrt.org/snapshots/trunk/xburst/ > > Are you saying that those packages have a kernel with FP emulation > switched on, so that they will work with the Debian mips binaries?
All the *.ipk files were compiled with software floating point, so they will run fine with a kernel which has FPU emulator on or off. However, the kernel provided [1] does not have the FPU emulator turned on. [1]: http://downloads.openwrt.org/snapshots/trunk/xburst/openwrt-xburst- uImage.bin -- Florian -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
