on 21/04/2013 06:08 Mark Johnston said the following: > On Sat, Mar 23, 2013 at 08:57:54AM +0000, Andriy Gapon wrote: >> Author: avg >> Date: Sat Mar 23 08:57:54 2013 >> New Revision: 248644 >> URL: http://svnweb.freebsd.org/changeset/base/248644 >> >> Log: >> dtrace: ensure that we can always catch a process (e.g. when -c is used) >> >> It is not guaranteed that a program has a symbol table entry for main >> and thus that it would be possible to set a breakpoint on it. >> >> Reviewed by: rpaulo >> Discussed with: rpaulo >> MFC after: 13 days > > Hi Andriy, > > This commit seems to break USDT for me. When I for instance try to run > the toy example at https://wiki.freebsd.org/DTrace/userland (the > database provider), I get > > markj@gloom: ~/tmp/dtrace/db $ sudo dtrace -s db.d -c ./db > dtrace: failed to compile script db.d: line 2: probe description > database23147:::query-start does not match any probes > > When I revert this commit and recompile the example program and > libdtrace, it works as expected.
Mark, thank you very much for the report. It seems that I didn't fully understand consequences of the change when I made it. I am still looking into the details of the relevant differences between Solaris/Illumos and FreeBSD. Because I am going on a vacation I've decided to revert this commit for now. -- Andriy Gapon _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
