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Cortex M3 Support


Hi Everyone,

I'm trying to build libffi for a Luminary Cortex-M3 processor. Has
anyone tried this? I've installed arm-bare_newlib_cortex_m3_
nommu-eabi toolchain using crosstool-ng and am getting the following
error message:

Building file: ../source/ffi/sysv.S
Invoking: GCC Assembler
arm-bare_newlib_cortex_m3_nommu-eabi-gcc -Wa,-mthumb-interwork
-I"/home/neil/m3projects/robovero/firmware/include"
-o"source/ffi/sysv.o" "../source/ffi/sysv.S"
../source/ffi/sysv.S: Assembler messages:
../source/ffi/sysv.S:145: Error: selected processor does not support ARM opcodes
../source/ffi/sysv.S:147: Error: attempt to use an ARM instruction on
a Thumb-only processor -- `stmfd sp!,{r0-r3,fp,lr}'

I've tried passing various command line options to the assembler to no
avail. I have little experience building toolchains so I'm unsure of
whether I did that wrong of if libffi simply doesn't support thumb2.
Can anyone help me?

Thanks.

--
Neil MacMunn


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