[avr-gcc-list] dtostrf and the dreaded "relocation truncated to fit: R_AVR_13_PCREL" error

[rtwas]

           gcc: avr-gcc (GCC) 4.1.1
          libc: avr-libc-1.4.4
atmega128:

Hello,

On a current project, as soon as I add

dtostrf(f0, 4, 4, str2);
or
dtostre((float) f0, str2, 4,0);

to one of my source files I get:


/usr/local/atmel/bin/avr-gcc -g -Os -Wall -mcall-prologues 
-mmcu=atmega128 -save-temps   main.o spim.o spim_tmr0.o diag.o uart.o 
cmd.o cmd_spi.o -o avr_sdiag0.obj
/usr/local/atmel/lib/gcc/avr/4.1.1/../../../../avr/lib/avr5/libc.a(pow.o): 
In function `pow':
../../../libm/fplib/pow.S:100: relocation truncated to fit: 
R_AVR_13_PCREL against symbol `__mulsf3' defined in .text section in 
/usr/local/atmel/lib/gcc/avr/4.1.1/avr5/libgcc.a(_mul_sf.o)
/usr/local/atmel/lib/gcc/avr/4.1.1/../../../../avr/lib/avr5/libc.a(exp.o): 
In function `exp':
../../../libm/fplib/exp.S:90: relocation truncated to fit: 
R_AVR_13_PCREL against symbol `__mulsf3' defined in .text section in 
/usr/local/atmel/lib/gcc/avr/4.1.1/avr5/libgcc.a(_mul_sf.o)
/usr/local/atmel/lib/gcc/avr/4.1.1/../../../../avr/lib/avr5/libc.a(log.o): 
In function `log':
../../../libm/fplib/log.S:109: relocation truncated to fit: 
R_AVR_13_PCREL against symbol `__floatsisf' defined in .text section in 
/usr/local/atmel/lib/gcc/avr/4.1.1/avr5/libgcc.a(_si_to_sf.o)
../../../libm/fplib/log.S:114: relocation truncated to fit: 
R_AVR_13_PCREL against symbol `__mulsf3' defined in .text section in 
/usr/local/atmel/lib/gcc/avr/4.1.1/avr5/libgcc.a(_mul_sf.o)
../../../libm/fplib/log.S:123: relocation truncated to fit: 
R_AVR_13_PCREL against symbol `__addsf3' defined in .text section in 
/usr/local/atmel/lib/gcc/avr/4.1.1/avr5/libgcc.a(_addsub_sf.o)
/usr/local/atmel/lib/gcc/avr/4.1.1/../../../../avr/lib/avr5/libc.a(modf.o): 
In function `modf':
../../../libm/fplib/modf.S:81: relocation truncated to fit: 
R_AVR_13_PCREL against symbol `__floatsisf' defined in .text section in 
/usr/local/atmel/lib/gcc/avr/4.1.1/avr5/libgcc.a(_si_to_sf.o)
../../../libm/fplib/modf.S:93: relocation truncated to fit: 
R_AVR_13_PCREL against symbol `__addsf3' defined in .text section in 
/usr/local/atmel/lib/gcc/avr/4.1.1/avr5/libgcc.a(_addsub_sf.o)
make: *** [avr_sdiag0.obj] Error 1

When I compile.

I've used dtostrf in an atmega32 target with no difficulty. I've done 
some searching and there is a similar bug dating back to 2005 in
the bug list. Nothing further is mentioned about it.

Thanks.

Robert W.