[Solved] Cross compiler toolchains for Bullseye are broken

[f-laurens]

I am attempting to use the cross compiler toolchains for Bullseye to build Python, and the Python build 'configure' step detects that the compiler is not able to compile a simple program:

configure:2844: checking build system type
configure:2858: result: x86_64-pc-linux-gnu
configure:2878: checking host system type
configure:2891: result: arm-unknown-linux-gnueabihf
configure:2921: checking for python3.9
configure:2948: result: python3.9
configure:2963: checking for python interpreter for cross build
configure:2976: result: python3.9
configure:3042: checking for --enable-universalsdk
configure:3089: result: no
configure:3113: checking for --with-universal-archs
configure:3128: result: no
configure:3284: checking MACHDEP
configure:3335: result: "linux"
configure:3589: checking for arm-linux-gnueabihf-gcc
configure:3605: found /opt/cross-pi-gcc-10.2.0-0/bin/arm-linux-gnueabihf-gcc
configure:3616: result: arm-linux-gnueabihf-gcc
configure:3885: checking for C compiler version
configure:3894: arm-linux-gnueabihf-gcc --version >&5
arm-linux-gnueabihf-gcc (GCC) 10.2.0
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
configure:3894: arm-linux-gnueabihf-gcc -v >&5
Using built-in specs.
COLLECT_GCC=arm-linux-gnueabihf-gcc
COLLECT_LTO_WRAPPER=/opt/cross-pi-gcc-10.2.0-0/bin/../libexec/gcc/arm-linux-gnueabihf/10.2.0/lto-wrapper
Target: arm-linux-gnueabihf
Configured with: ../configure --prefix= --target=arm-linux-gnueabihf --enable-languages=c,c++,fortran --with-sysroot=/arm-linux-gnueabihf/libc --with-build-sysroot=/tmp/cross-pi-gcc-10.2.0-0/arm-linux-gnueabihf/libc --with-arch=armv6 --with-fpu=vfp --with-float=hard --disable-multilib
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 10.2.0 (GCC) 
configure:3925: checking whether the C compiler works
configure:3947: arm-linux-gnueabihf-gcc    conftest.c  >&5
/opt/cross-pi-gcc-10.2.0-0/bin/../lib/gcc/arm-linux-gnueabihf/10.2.0/../../../../arm-linux-gnueabihf/bin/ld: /opt/cross-pi-gcc-10.2.0-0/bin/../arm-linux-gnueabihf/libc/usr/lib/crt1.o: in function `_start':
/tmp/build_toolchains/glibc-2.31/csu/../sysdeps/arm/start.S:124: undefined reference to `__libc_start_main'
/opt/cross-pi-gcc-10.2.0-0/bin/../lib/gcc/arm-linux-gnueabihf/10.2.0/../../../../arm-linux-gnueabihf/bin/ld: /tmp/build_toolchains/glibc-2.31/csu/../sysdeps/arm/start.S:128: undefined reference to `abort'
/opt/cross-pi-gcc-10.2.0-0/bin/../lib/gcc/arm-linux-gnueabihf/10.2.0/../../../../arm-linux-gnueabihf/bin/ld: /tmp/build_toolchains/glibc-2.31/csu/../sysdeps/arm/start.S:113: undefined reference to `__libc_csu_fini'
/opt/cross-pi-gcc-10.2.0-0/bin/../lib/gcc/arm-linux-gnueabihf/10.2.0/../../../../arm-linux-gnueabihf/bin/ld: /tmp/build_toolchains/glibc-2.31/csu/../sysdeps/arm/start.S:120: undefined reference to `__libc_csu_init'
collect2: error: ld returned 1 exit status
configure:3989: result: no
configure: failed program was:
| /* confdefs.h */
| #define _GNU_SOURCE 1
| #define _NETBSD_SOURCE 1
| #define __BSD_VISIBLE 1
| #define _DARWIN_C_SOURCE 1
| #define _PYTHONFRAMEWORK ""
| #define _XOPEN_SOURCE 700
| #define _XOPEN_SOURCE_EXTENDED 1
| #define _POSIX_C_SOURCE 200809L
| /* end confdefs.h.  */
| 
| int
| main ()
| {
| 
|   ;
|   return 0;
| }
configure:3996: error: C compiler cannot create executables

I do not have the problem when using the equivalent toolchains for Buster.

[abhiTronix]

I think Bullseye toolchains are broken, I'm seeing plenty of issues regarding it. I'll look into it.

[f-laurens]

Thanks!

[abhiTronix]

@f-laurens Apparently there's a bug with GCC 10.x.x when built with Glibc 2.31 and was fixed in: https://sourceware.org/pipermail/glibc-cvs/2020q1/069150.html and committed here: https://sourceware.org/pipermail/libc-alpha/2020-May/113553.html but never was backported to Glibc 2.31 release.

[abhiTronix]

@f-laurens Please wait till updated binaries are release. I'll inform you here for testing again.

[abhiTronix]

@f-laurens There were way too many bugs with both GCC and Glibc. v3.0.9 toolchains are in build and soon be available.

[abhiTronix]

This issue has been resolved in the latest Toolchains version v3.0.9. Download it from here: https://sourceforge.net/projects/raspberry-pi-cross-compilers/files/Raspberry%20Pi%20GCC%20Cross-Compiler%20Toolchains/

[f-laurens]

This issue has been resolved in the latest Toolchains version v3.0.9.

The new version of the Bullseye cross toolchains indeed solves my problem.
Thanks!