From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ulf Samuelsson Date: Fri, 13 Oct 2006 06:44:07 +0200 Subject: [U-Boot-Users] software FP yada yada yada References: <20061012231602.5DF4B353DA3@atlas.denx.de> Message-ID: <005d01c6ee87$4beac2f0$0d68fe51@atmel.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de > Dear Ulf, > > in message <011f01c6ee45$0eefaba0$0d68fe51@atmel.com> you wrote: >> >> According to the crosstool documentation at www.kegel.com: >> >> Most combinations of gcc 3.x.x and binutils fails when you try to build a softfloat toolchain >> All tested combinations of gcc-4.x.x and binutils fails if softfloat is enabled. >> If you want to use gcc 4, you cannot build u-boot as is. > > This is not correct. See for example ELDK 4.0: based on GCC 4.0, based > on crosstool, and works just fine :-) > I quite often work with customers which has little or no experience with Linux but still wants to start using this for new embedded systems My goal is to have a customer download a file, decompress it and type make. After that, everything needed to install a demo on a target should be ready. I have choosen to use "buildroot" as the framework for this. Buildroot will build the toolchain as part of the build process, so there is no need to download and install a toolchain. Avoiding extra steps like this has high value to me. It is going to be very complicated to use buildroot with two toolchains and there is of course nothing in buildroot which installs ELDK as the toolset. I do want to have u-boot built as part of the buildroot make process. Since most combinations of gcc/binutils fail it is much easier to use a NWFPE version of the compiler also for U-boot. >> It is worth 10s of kB to be able to use a single toolchain to build >> u-boot, Linux and filesystem > > Agreed. That's how we do it with the ELDK. I don't see why this > should be impossible for others. > > Best regards, > > Wolfgang Denk > Best Regards Ulf Samuelsson ulf at atmel.com Atmel Nordic AB Mail: Box 2033, 174 02 Sundbyberg, Sweden Visit: Kavalleriv?gen 24, 174 58 Sundbyberg, Sweden Phone +46 (8) 441 54 22 Fax +46 (8) 441 54 29 GSM +46 (706) 22 44 57 Technical support when I am not available: AT89 C51 Applications Group: mailto:micro.hotline at nto.atmel.com AT90 AVR Applications Group: mailto:avr at atmel.com AT91 ARM Applications Group: mailto:at91support at atmel.com FPSLIC Application Group: mailto:fpslic at atmel.com Best AVR link: www.avrfreaks.net