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.
> Аўторак, 20 жніўня 2024, 12:23 +03:00 ад Jonathan Wakely <jwakely.gcc@xxxxxxxxx>:
>
> Hi,
> > I'm having trouble understanding the problem and the suggested change.
> Your email doesn't provide many details to help us understand exactly
> what you mean.
>
> On Mon, 19 Aug 2024 at 23:35, Fiodar wrote:
> >
> >
> > I have build error due missed crtfastmath.o from 5 series till 14 for Symbian.
> > What exactly is the build error you have?
> What does "missed crtfastmath.o" mean?
> > If you explain the problem in more detail, we might be able to
> understand it better.
>
> > All crtfastmath.o usage declared in pair t-softfp and t-crtfm in libgcc/config.host, isn't it? The last one tells where to pick crtfastmath.o. Symbian share config with arm*-*-eabi and arm*-*-rtems. I checked this config many times and accidentally noticed that the t-crtfm unaviable.
> > What do you mean "unavailable"? It's in libgcc/config, so is available.
> Do you mean it's not used for the arm*-*-symbianelf* case?
> > > I remove t-softfp and error gone.
> > Remove it from where?
> > >
> > Here that config:
> > https://gcc.gnu.org/git?p=gcc.git;a=blob;f=libgcc/config.host;h=9fae51d4ce7dee206f5807bbdb2ce94ceeca33e9;hb=HEAD#l565
> > What did you change? Could you show a diff?
>
> The addition of t-crtfm was made in https://gcc.gnu.org/g:5a0ff57c48cb
> in 2015. Are you saying that building arm*-*-symbianelf* has been
> broken since then?
"make -k" produce usable freestanding compiler with libsupc, libgcc and libgcov in multilib dirs. libstdc++ not builded before my changes. I build big project like ScummVM since GCC 5 series witout problem.
Stryzhniou Fiodar
Стрижнёв Федор
