With the introduction of the open XL 17.1.2.13 Compiler and the runtime 17.1.3 as minimum requirement ubsan is supported for AIX now.
Unfortunately there has to be some adoptions.
- Currently the test for vptr does not work and produces crashes when active, so we have to deactivate it. (If fixed by IBM there will be a follow up JBS)
- ubsan introduces so much new symbols to every executable that we have to link with -bbigtoc.
- The llvm_symbolizer is not found out of the box, so we have to provide the full qualified llvm_symbolizer path in the __ubsan_default_options() function.