https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77405
--- Comment #15 from John Marino <gnugcc at marino dot st> --- to all: I built August 28 snapshot of gcc7 with Ada frontend on FreeBSD 11.0-RC2, there was no SIGBUS and it completed the build successfully. (Not good news for DF I guess) to H.J.Lu: There's a complete log showing where in the build the SIGBUG occurs but as far as the assembly code that causes it, I have no idea. If you provide me some instructions on how, maybe I can get some useful information for you.