On Thu, Feb 28, 2019 at 6:40 PM Matthew Macy <mm...@freebsd.org> wrote: > > to config add: > options LINDEBUGFS > options GCOV > > compile kernel with gcc (otherwise it will be a no-op) > > sysctl debug.gcov.enable=1 > > mount -t debugfs debugfs /sys/kernel/debug > > (or wherever) and the output artifacts will appear under gcov/<kernel > build path> - you need to be root to see the artifacts > > gcov can then generate the results as it would normally from the > profiling and the build time artifacts > > bug reports welcome > > > -M
Here's a bug report: I rebuilt the kernel but boot fails with this error. Do I need to rebuild world too? Mounting local filesystems:kldload: fdescfs.ko: lost base for reltab linker_load_file: /boot/kernel/fdescfs.ko - unsupported file type mount: fdescfs: Operation not supported by device Mounting /etc/fstab filesystems failed, will retry after root mount hold release kldload: fdescfs.ko: lost base for reltab linker_load_file: /boot/kernel/fdescfs.ko - unsupported file type mount: fdescfs: Operation not supported by device . Mounting /etc/fstab filesystems failed, startup aborted _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
