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* arm-none-eabi toolchain and compiling C++ stuff
@ 2023-12-20 20:28 Attila Lendvai
  2023-12-20 20:53 ` Ekaitz Zarraga
  2023-12-21 16:11 ` Ricardo Wurmus
  0 siblings, 2 replies; 4+ messages in thread
From: Attila Lendvai @ 2023-12-20 20:28 UTC (permalink / raw)
  To: guix-devel

dear Guix,

i'm trying to compile something to a raspberry rp2040 microcontroller (https://codeberg.org/Riku_V/pico-serprog).

$ guix shell gcc-toolchain cmake make pkg-config -e "((@ (gnu packages embedded) make-arm-none-eabi-toolchain-7-2018-q2-update))"
$ cd _deps
$ git clone https://github.com/raspberrypi/pico-sdk.git pico_sdk-src
$ cd ..
$ cmake .
$ make

so far, so good. it compiles for a while, but then it fails with:

[ 14%] Building CXX object CMakeFiles/pico_serprog.dir/_deps/pico_sdk-src/src/rp2_common/pico_standard_link/new_delete.cpp.obj
In file included from pico-serprog/_deps/pico_sdk-src/src/rp2_common/pico_standard_link/new_delete.cpp:11:0:
/gnu/store/7i9fw82x6hljy6sb4g10v2dl53l7pybl-profile/arm-none-eabi/include/c++/cstdlib:75:25: fatal error: stdlib.h: No such file or directory
 #include_next <stdlib.h>

if i read this right, it tries to cross compile some C++ stuff, but a header file is missing.

$ guix locate stdlib.h
[...]
gcc-toolchain@13.2.0 /gnu/store/dpfxpfyghkc19wz8jwaw31llhnvn8ngx-gcc-toolchain-13.2.0/include/stdlib.h
gcc-toolchain@11.3.0 /gnu/store/5vn4pkf70ql7v1svrfknfkfsh4m3737h-gcc-toolchain-11.3.0/include/stdlib.h
clang-toolchain@15.0.7 /gnu/store/6m5gi7l7bi93gnzm2j422q9wawq3p6al-clang-toolchain-15.0.7/include/stdlib.h
[...]

i.e. it's usually part of the gcc-toolchain package... but it's not part of the cross-compiling ones?

is that a bug in (gnu packages embedded)? shall i look into fixing it?

or am i the one who has invalid expectations?

-- 
• attila lendvai
• PGP: 963F 5D5F 45C7 DFCD 0A39
--
“If money is your hope for independence you will never have it. The only real security that a man will have in this world is a reserve of knowledge, experience, and ability.”
	— Henry Ford (1863–1947)



^ permalink raw reply	[flat|nested] 4+ messages in thread
* arm-none-eabi toolchain and compiling C++ stuff
@ 2024-09-06 16:01 Rutherther
  0 siblings, 0 replies; 4+ messages in thread
From: Rutherther @ 2024-09-06 16:01 UTC (permalink / raw)
  To: attila; +Cc: guix-devel


Hello Attila,

lately I've been trying to make arm-none-eabi toolchain with gcc 12.3,
since the older ones cannot be used with QMK. I also stumbled accross
this issue. The issue is actually caused by wrong order of paths in
"CROSS_CPLUS_INCLUDE_PATH". The C include path has to come after the C++ path.
So as a workaround, remove the /include from beginning of this, and
append it instead as last.

Apart from that you will probably have an issue with linking against the
libstdc++, since it's inside of "lib" folder instead or "arm-none-eabi/lib"
that is in CROSS_LIBRARY_PATH. As a workaround, just add
"$GUIX_ENVIRONMENT/lib" to "CROSS_LIBRARY_PATH".

I will try to submit the 12.3 patch soon. In the mean time I have it
inside of my own channel https://github.com/Rutherther/guix-exprs/blob/main/ruther/packages/embedded.scm

Redards,
Rutherther



^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2024-09-07  8:07 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2023-12-20 20:28 arm-none-eabi toolchain and compiling C++ stuff Attila Lendvai
2023-12-20 20:53 ` Ekaitz Zarraga
2023-12-21 16:11 ` Ricardo Wurmus
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2024-09-06 16:01 Rutherther

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