Re: [ptxdist] OSELAS Toolchain for ARM-v7em with newlib and c++ support

[Michael Olbrich <m.olbrich@pengutronix.de>]

Hi,

On Wed, Mar 29, 2023 at 09:40:06AM +0200, Luis Grünewald wrote:
> I am trying to build the Oselas-Toolchain using the following setup:
> 
> - HOST-OS: Ubuntu 22.04.2 LTS
> - HOST-CPU: 11th Gen Intel(R) Core (TM) i7-1165G7 @ 2.80GHz × 8
> - Osleas project: OSELAS.Toolchain-2022.10.0 (https://git.pengutronix.de/cgit/OSELAS.Toolchain/tag/?h=v2022.10.0)
> - Ptxdist Version: ptxdist-2023.01.0 (https://public.pengutronix.de/software/ptxdist/)

Not the cause of your specific problem, but in general, you should always
use the ptxdist version that is specified in the ptxconfig files. 2022.10.0
in this case. Using a newer version can cause problems.

> 
> To build the toolchain I am doing the following steps:
> 
> 1. Selecting the ptxconfig : arm-v7em-eabihf_gcc-12.2.1_newlib-4.2.0.20211231_binutils-2.39
> 2. using "ptxdist migrate" to update .ptxconfg
> 3. Since I need support for C++, I add C++ as an "Additional supported language" using "ptxdist menuconfig"
> 4. unsing the "build_one.sh arm-v7em-eabihf_gcc-12.2.1_newlib-4.2.0.20211231_binutils-2.39" to build the toolchain
> 
> build_one.sh fails with the following error:
> 
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> checking whether printf hooks are supported... no
> checking whether nl_langinfo should be used... no
> checking whether nl_langinfo should be used for wide char locale info... yes
> checking what to include in include/gstdint.h... stdint.h (already complete)
> checking for GNU c++filt... /usr/bin/c++filt
> checking for shared libgcc... configure: error: Link tests are not allowed after GCC_NO_EXECUTABLES.
> no
> checking whether localeconv should be used... make[1]: *** [Makefile:12209: configure-target-libstdc++-v3] Error 1
> make[1]: *** Waiting for unfinished jobs....
> .
> .
> .
> .
> config.status: executing depfiles commands
> config.status: executing libtool commands
> make[1]: Leaving directory '/home/l.gruenewald/projects/m4Communication/toolchain_test/test3/OSELAS.Toolchain-2022.10.0/platform-arm-v7em-eabihf-gcc-12.2.1-newlib-4.2.0.20211231-binutils-2.39/build-cross/gcc-12-20221022-build'
> make: *** [Makefile:1027: all] Error 2
> make: Leaving directory '/home/l.gruenewald/projects/m4Communication/toolchain_test/test3/OSELAS.Toolchain-2022.10.0/platform-arm-v7em-eabihf-gcc-12.2.1-newlib-4.2.0.20211231-binutils-2.39/build-cross/gcc-12-20221022-build'
> make: *** [/home/l.gruenewald/projects/m4Communication/toolchain_test/test3/ptxdist-2023.01.0/rules/post/ptxd_make_world_compile.make:20: /home/l.gruenewald/projects/m4Communication/toolchain_test/test3/OSELAS.Toolchain-2022.10.0/platform-arm-v7em-eabihf-gcc-12.2.1-newlib-4.2.0.20211231-binutils-2.39/state/cross-gcc.compile] Error 2
> make: *** [/home/l.gruenewald/projects/m4Communication/toolchain_test/test3/OSELAS.Toolchain-2022.10.0/build_all_v2.mk:44: gstate/arm-v7em-eabihf-gcc-12.2.1-newlib-4.2.0.20211231-binutils-2.39.build] Fehler 2
> 
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> 
> 
> More Errors can be found in <OSELAS.Toolchain-2022.10.0/platform-arm-v7em-eabihf-gcc-12.2.1-newlib-4.2.0.20211231-binutils-2.39/build-cross/gcc-12-20221022-build/arm-v7em-eabihf/libstdc++-v3/config.log>.
> Here is a link to my libstdc++-v3/config.log : https://controlc.com/a342dcd8
> 
> Building the toolchain using the "arm-v7em-eabihf_gcc-12.2.1_newlib-4.2.0.20211231_binutils-2.39.ptxconfig" without any changes works fine.
> But after using "debain/bin/build.sh" to build the .deb package, in the /bin folder the link called "arm-v7em-eabihf-g++" is broken.
> 
> Do you have any suggestion how to build the Oslastoolchain using the "arm-v7em-eabihf_gcc-12.2.1_newlib-4.2.0.20211231_binutils-2.39.ptxconfig" so that in the end the "g++" compiler will be included ?

Sorry, not really. The C++ compiler is disabled for all newlib toolchains.
I think there is something broken there in general, but I've not looked
into that for a long time.

Michael

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