Hello all.
I'm trying to port 'whetstone' FPU benchmark. I've found that I couldn't
compile the ported result due to or1k-elf-gcc isn't able to find references
for trigonometric functions. So, I wrote the simple program:
/* start of fsin.c */
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
int main(void)
{
float x = 3.14159 / 4.0;
printf("\n x=%f y=%f",x,sin(x));
return 0;
}
/* end of fsin.c */
and I run compilation with the following command:
or1k-elf-gcc -mhard-mul -mhard-div -msoft-float -mboard=atlys fsin.c -o
fsin.elf
I received the following error messages:
/tmp/ccChxUjX.o: In function `main':
fsin.c:(.text+0x48): undefined reference to `sin'
collect2: error: ld returned 1 exit status
I tried to add -lm option (as I found trigonometric names in
/opt/or1k-toolchain/or1k-elf/lib/soft-float/libm.a), but the result was the
same.
So my question is how to use trigonometric functions in or1k newlib tool
chain?
WBR
Andrey
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