On Fri, 2020-06-05 at 14:49 -0700, Andres Freund wrote: > FWIW, with gcc 10 and glibc 2.30 I don't see such a switch. Taking a > profile shows me:
... > 4.65 │ → callq memcpy@plt > │ LogicalTapeWrite(): > > I.e. normal memcpy is getting called. > > That's with -D_FORTIFY_SOURCE=2 That's good news, although people will be using ubuntu 18.04 for a while. Just to confirm, would you mind trying the example programs in the GCC bug report? https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95556 > With which compiler / libc versions did you encounter this? gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 gcc-9 (Ubuntu 9.2.1-19ubuntu1~18.04.york0) 9.2.1 20191109 libc-dev-bin/bionic,now 2.27-3ubuntu1 amd64 [installed] Regards, Jeff Davis
