[Bug bootstrap/63888] [5 Regression] bootstrap failed when configured with -with-build-config=bootstrap-asan --disable-werror

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63888

--- Comment #29 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Perhaps you can emit another symbol covering the original size plus padding in
that case on targets where linker can do something so problematic.
So you'd end up having e.g. symbol
varfoo addr=0x1234500 size=32
__asan_var.varfoo addr=0x1234500 size=64
(replace . with whatever char can be used in object format's identifiers and if
at all possible is not allowed in C/C++ identifiers).
Or would Mach-O still attempt to tear it appart?  That would sound like a bug
to me.