On Mon, 23 Sept 2024 at 14:59, Fiodar <fedor_qd@xxxxxxx> wrote:
>
> Hi! Any news? Any response?
Please file a bug in bugzilla.
>
>
>
> Серада, 4 верасня 2024, 22:09 +03:00 ад Fiodar <fedor_qd@xxxxxxx>:
>
> Пятніца, 23 жніўня 2024, 13:34 +03:00 ад Fiodar <fedor_qd@xxxxxxx>:
>
>
>
> Пятніца, 23 жніўня 2024, 12:10 +03:00 ад Jonathan Wakely <jwakely.gcc@xxxxxxxxx>:
>
> On Thu, 22 Aug 2024 at 21:21, Fiodar <fedor_qd@xxxxxxx> wrote:
> >
> > Here config from link:
> > 565 arm*-*-eabi* | arm*-*-symbianelf* | arm*-*-rtems*)
> > 566 tmake_file="${tmake_file} arm/t-arm arm/t-elf t-fixedpoint-gnu-prefix"
> > 567 tm_file="$tm_file arm/bpabi-lib.h"
> > 568 case ${host} in
> > 569 arm*-*-eabi* | arm*-*-rtems*)
> > 570 tmake_file="${tmake_file} arm/t-bpabi arm/t-sync t-crtfm"
> > 571 extra_parts="crtbegin.o crtend.o crti.o crtn.o"
> > 572 ;;
> > 573 arm*-*-symbianelf*)
> > 574 tmake_file="${tmake_file} arm/t-symbian t-slibgcc-nolc-override"
> > 575 tm_file="$tm_file arm/symbian-lib.h"
> > 576 # Symbian OS provides its own startup code.
> > 577 ;;
> > 578 esac
> > 579 tmake_file="$tmake_file t-softfp-sfdf t-softfp-excl arm/t-softfp t-softfp"
> > 580 extra_parts="$extra_parts crtfastmath.o"
> > 581 unwind_header=config/arm/unwind-arm.h
> > 582 ;;
> >
> > At line 570 t-crtfm says where look for crtfastmath.o. But it matters for arm*-*-eabi* and arm*-*-rtems* targets only.
> > At line 580 declared additional dependency - crtfastmath.o without t-crtfm pair in Symbian part.
> > As temporal solution I change line 580 to ‘ extra_parts="$extra_parts" ’ and error gone. Builds was fine. Even libstdc++.a builded.
> >
> > Pattern at line 580 widely used in libgcc/config.host. It’s was usual copy-paste mistake. I notice that by accident.
> > Proposed fix: change line 571 to
> > extra_parts="crtbegin.o crtend.o crti.o crtn.o crtfastmath.o"
> > and line 580 to:
> > extra_parts="$extra_parts"
> >
> > Anyway Symbian used own crts. So crtfastmath not needed at all.
>
> But does the Symbian runtime correctly handle GCC's -ffast-math option?
>
> I don’t know. Does gcc has any test? I build and run it.
>
>
> I think the correct fix is to add t-crtfm to the symbianelf config.
>
> I look closely at libgcc\config\arm\crtfastmath.c. It compiled if macro __SOFTFP__ not defined. I’m not sure if this needed because Symbian use softfp ABI for float numbers.
>
> I build simple helloword with default options and some check:
> #if __SOFTFP__
> #pragma message "__SOFTFP__"
> #endif
>
> I got:
> note: '#pragma message: __SOFTFP__'
>
> Looks like all SOFTFP targets can’t use crtfastmath from GCC because it doesn’t compile.
>
> Stryzhniou Fiodar
> Стрижнёв Федор
>
>
>
> Stryzhniou Fiodar
> Стрижнёв Федор
>
>
>
> Stryzhniou Fiodar
> Стрижнёв Федор
>
