Re: -mfloat-abi=softfp

[ng@piments.com]

On 04/28/10 10:52, Martin Guy wrote:
>>   The major worry seems to be the NAND flash.
>>
>>   Creating 3 MTD partitions on "ts7250-nand":
>>   Since there is specific support for the TS7250 boards.and I had no problems
>> on 2.6.29 , I'm a bit confused.
>>
>>   Both the "Bad eraseblock 0" error and the  "TS-BOOTROM" doesn't end on an
>> erase block " issue seems be fairly common in the embedded world, I have not
>> found any concrete information on what the cause is.
>>
>>   Can you suggest where I should be looking?
>
> I'm glad there was nothing wrong with crosstool-ng. Lesson: don't
> overclock unless you are only running games. However this no longer
> has anything to do with cross-compilation using gcc, so the answer is
> probably "the ts7000 yahoo group or your supplier".
>
> Alternatively you can hire me to solve your problems.
>
>     M
>
Hi again.

I have been doing well with the toolchain but it's now tripping up on 
gnuplot.

./configure --host=arm-maverick-linux-gnueabi --without-x--without-pdf 
--without-cairo --disable-wxwidgets --without-x CFLAGS=" -mcpu=ep9312 
-mfpu=maverick -mfloat-abi=softfp -O2 -fomit-frame-pointer -pipe" 
CXXFLAGS=" -mcpu=ep9312 -mfpu=maverick -mfloat-abi=softfp -O2 
-fomit-frame-pointer -pipe"

make

make[3]: Entering directory `/back/ts/ct-wkg/gnuplot/src'
arm-maverick-linux-gnueabi-gcc -DHAVE_CONFIG_H -I. -I..  -I../term 
-I../term -DBINDIR=\"/usr/local/bin\" 
-DX11_DRIVER_DIR=\"/usr/local/libexec/gnuplot/4.3\" 
-DGNUPLOT_PS_DIR=\"/usr/local/share/gnuplot/4.3/PostScript\" 
-DGNUPLOT_JS_DIR=\"/usr/local/share/gnuplot/4.3/js\" 
-DCONTACT=\"gnuplot-bugs@lists.sourceforge.net\" 
-DHELPFILE=\"/usr/local/share/gnuplot/4.3/gnuplot.gih\" 
-DGNUPLOT_X11=\"`echo gnuplot_x11 | sed 's,x,x,'`\"   -mcpu=ep9312 
-mfpu=maverick -mfloat-abi=softfp -O2 -fomit-frame-pointer -pipe -MT 
axis.o -MD -MP -MF .deps/axis.Tpo -c -o axis.o axis.c
axis.c: In function 'gen_tics':
axis.c:1163: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[3]: *** [axis.o] Error 1
make[3]: Leaving directory `/back/ts/ct-wkg/gnuplot/src'
make[2]: *** [all-recursive] Error 1


This is a genuine ICE. 100% repeatable .

I had also been seeing the "-march= switch" jive again until I removed 
-march=armv4t from the flags.

The ICE is the same with or with that detail.

If I remove teh " -mfpu=maverick -mfloat-abi=softfp" part it compiles.

Unfortunately gnuplot was the main reason I got into all this FPU work 
in the first place, though moving to eabi was a huge improvement already.

thx

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