ld.lld: error: undefined symbol: __ubsan_handle_type_mismatch_v1

[tpgxyz]

systemd version the issue has been seen with

git shapshot from 2023-03-24

Used distribution

OpenMandriva cooker

Linux kernel version used

6.2.7-server-1omv2390

CPU architectures issue was seen on

None

Component

No response

Expected behaviour you didn't see

Compile and link without errors

Unexpected behaviour you saw

https://gist.github.com/tpgxyz/0536fedb0b06fbcf7d4bebe9f278ab21

Steps to reproduce the problem

Compile with LLVM/clang-16.x a systemd git snapshot form 2023-03-24
Full logs avaiable here https://abf.openmandriva.org/build_lists/296258

Additional program output to the terminal or log subsystem illustrating the issue

https://gist.github.com/tpgxyz/0536fedb0b06fbcf7d4bebe9f278ab21

[medhefgo]

With clang you need to pass -Db_lundef=false to meson to make sanitizers work.

See: mesonbuild/meson#3853

And indeed, the meson logs contains a warning:

meson.build:4906: WARNING: Trying to use undefined sanitizer on Clang with b_lundef.

[medhefgo]

Closing this, as it's a meson bug.

[tpgxyz]

@medhefgo hi i tried to build systemd with -Db_lundef=false and meson warning is gone, yet systemd fails to build as with the same error as original. Please take a second look.

https://abf.openmandriva.org/build_lists/296356

[medhefgo]

LDFLAGS contains -Wl,--no-undefined. Either strip that or append -z undefs.