Hi, Colin -
> This is a mistaken analysis. /usr/sbin/mysqld is in > mysql-server-core-5.5, not mysql-server-5.5, and therefore its debugging > symbols are in mysql-server-core-5.5-dbgsym: Thank you for the correction. I must have misread the output from "dpkg -S". > $ dpkg -c mysql-server-core-5.5-dbgsym_5.5.44-0ubuntu0.14.04.1_amd64.ddeb | > grep 5b99 > -rwxrwxr-x root/root 48818397 2015-07-16 23:50 > ./usr/lib/debug/.build-id/7c/5b991d6ba0d7722a41f9a39e2915f6a354a1c7.debug Indeed, and now dwarf-based function/statement probes can be resolved against mysqld. > The information that Gareth provided indicated that they already had > mysql-server-core-5.5-dbgsym installed, so perhaps this problem is > entirely explained by the NT_STAPSDT bit above. The NT_STAPSDT part is actually completely separate. It relates to instrumentation compiled into the binary from <sys/sdt.h> macros, not data from the -dbgsym files. Activating that requires mysql configury or buildroot tweaks to ensure the systemtap-provided /usr/include/sys/sdt.h file is available. In the Fedora .spec [1], this is apprx. done by: BuildRequires: [...] systemtap-sdt-devel [...] cmake . [...] -DENABLE_DTRACE=ON [...] [1] http://pkgs.fedoraproject.org/cgit/mariadb.git/plain/mariadb.spec - FChE -- Ubuntu-devel-discuss mailing list Ubuntu-devel-discuss@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss
