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Christopher Jenkins wrote: > > Hi, > > I'm trying to build a toolchain for a powerpc-eabi target on an RS/6000 AIX > host. I can successfully build and use the following: > > binutils-2.12 > gcc-2.95.3 > newlib-1.10.0 > > However, the target processor (MC8260) has no floating point unit Are you sure about that? According to this: http://e-www.motorola.com/brdata/PDFDB/docs/MPC8260TS.pdf and my paper copy of a Motorola PowerPC selector guide it has an FPU. Sounds more like the startup code is not enabling the FPU to me. > and I'm > not sure whether Newlib is aware of this. Specifically, in setjmp.S, there > are a few lines of code to save the floating point registers (which the > MC8260 does not have) wrapped in an #ifndef _SOFT_FLOAT. I'm guessing that > _SOFT_FLOAT should be being defined somewhere, but I'm not sure where. Is > there any option that I can give to the configuration script such that this > macro will be defined? I'm not too keen on hacking the code since I'm sue > that there must be another way... > > Incidentally, I already give the --nfp switch to the configuration scripts > of binutils, gcc and newlib, but this doesn't seem to have much of an > effect. > > Cheers, > > Chris > > Chris Jenkins > IBM UK Laboratories > Chris.Jenkins@uk.ibm.com > > ------ > Want more information? See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/ > Want to unsubscribe? Send a note to crossgcc-unsubscribe@sources.redhat.com -- Joel Sherrill, Ph.D. Director of Research & Development joel@OARcorp.com On-Line Applications Research Ask me about RTEMS: a free RTOS Huntsville AL 35805 Support Available (256) 722-9985 ------ Want more information? See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/ Want to unsubscribe? Send a note to crossgcc-unsubscribe@sources.redhat.com
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