Help with -march and -mcpu issues

[Daniel Jacobowitz]

On Thu, Aug 30, 2007 at 12:12:20PM -0700, Rick Mann wrote:
> The thing that bugs me, again, is that it's complaining about differences 
> between the .o files and the thing it's linking the .o files into, which is 
> made up only of those .o files!

No it isn't:

> $ arm-elf-gcc -march=armv5te -ffreestanding -nostdlib -std=c99 -Xlinker -e 
> -Xlinker _start -Xlinker --script=link.lds -o h.elf start.o main.o -lgcc -lc 
> -lm

You've got libraries in there too plus any startfiles that the
compiler or your link.lds add.  Take a look at the
-Wl,-Map,mapfile.txt output file to see what else is being linked in.
You can use readelf -h to see the elf flags word for each object;
the linker error is complaining about EF_ARM_VFP_FLOAT.  One of your
objects was compiled with a toolchain that expects FPA emulation.

-- 
Daniel Jacobowitz
CodeSourcery