aarch64 manylinux 9.4.0 is not built / working correctly

[benoit74]

See openzim/python-libzim#234 (comment)

This is blocking python-libzim upgrade

[kelson42]

@veloman-yunkan Can you please have a look in priority? I guess we will have to make a new build for libzim (at least)?

[rgaudin]

I'll look at it. @veloman-yunkan I'll let you know if I need you

[rgaudin]

Original assessment is incorrect ; the libzim produced is indeed aarch64. I'll come back to you with more info.

[rgaudin]

Here are the invalid symbols on the resulting lib:

❯ auditwheel-symbols --manylinux 2_28 lib/aarch64-rpi3-linux-gnu/libzim.so.9.4.0
libzim.so.9.4.0 is not manylinux_2_28 compliant because it links the following forbidden libraries:
libstdc++.so.6	offending symbols: _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4dataEv@GLIBCXX_3.4.26, _ZSt21__glibcxx_assert_failPKciS0_S0_@GLIBCXX_3.4.30, _ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1Ev@GLIBCXX_3.4.26, _ZSt28__throw_bad_array_new_lengthv@GLIBCXX_3.4.29, _ZNSt18condition_variable4waitERSt11unique_lockISt5mutexE@GLIBCXX_3.4.30, _ZNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEC1Ev@GLIBCXX_3.4.26
libm.so.6	offending symbols: exp@GLIBC_2.29, log@GLIBC_2.29, pow@GLIBC_2.29, log2@GLIBC_2.29
libstdc++.so.6	offending symbols: _ZNSt15__exception_ptr13exception_ptr10_M_releaseEv@CXXABI_1.3.13, _ZNSt15__exception_ptr13exception_ptr9_M_addrefEv@CXXABI_1.3.13

The libm ones are from the toolchain (TOOLCHAINS/aarch64/aarch64-rpi3-linux-gnu/sysroot/lib/libm.so.6), running it over all base_deps libs shows that the libstdc++ ones are not from deps but come from libzim.

Before digging too much into this, I want to try to update the manylinux base image and build natively on aarch64 as well instead of cross-compiling.

[rgaudin]

❯ auditwheel-symbols -m 2_28 lib64/libzim.so.9.4.0
libzim.so.9.4.0 is manylinux_2_28 compliant.

OK, that worked. I'll integrate that tomorrow.