tree d0be2c212f506d804863ff4ca63296ef86257d05
parent 1cc42f7b9e5304dfeba59a0977d5b1e3de004e11
author Eric Wild <ewild@sysmocom.de> 1561642277 +0200
committer laforge <laforge@gnumonks.org> 1563724198 +0000

tell ubsan to ignore SUN_LEN

ubsan will report undefined behavior due to the SUN_LEN macros interaction with a null pointer,
so let's tell ubsan to ignore this function. After carefully reviewing the final publically
availlable drafts of the C99,C11 and C18 standards I can confirm that dereferencing null pointers
is still undefined behavior, as such ubsan will always warn with absolutely every existing compiler
version. Since the sanitizers are periodically synced between llvm and gcc I'm also fairly confident
that rebuilding everything with compiler_rt to use the integrated sanitizers would result in the same message.
I sincerly hope that this explanation provides to be sufficient, If not I'd be willing to show up at
the next llvm dev meeting to provide quotes from actual sanitizer developers to back up these claims.

Change-Id: I0ff445072f1b46390c9f70b21d61c789e39358d5