I'm not good at these really. Can I provide more information to help for tracing my problem?
Btw, I could find the file /usr/lib/debug/.build-id/7c/5b991d6ba0d7722a41f9a39e2915f6a354a1c7.debug in my system. How could I check whether it works with installed mysqld? On Wed, Sep 16, 2015 at 4:06 AM, Frank Ch. Eigler <f...@redhat.com> wrote: > 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 -- Gareth Cloud Computing, OpenStack, Distributed Storage, Fitness, Basketball OpenStack contributor, kun_huang@freenode My promise: if you find any spelling or grammar mistakes in my email from Mar 1 2013, notify me and I'll donate $1 or ￥1 to an open organization you specify. -- 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
