Planned for inclusion in RHEL7.
Development Management has reviewed and declined this request.
You may appeal this decision by reopening this request.
This all went in with:
Author: Gary Benson <email@example.com>
Date: Tue Jun 4 13:17:06 2013 +0000
grep for "enum probe_action" in gdb/solib-svr4.c. If it's there the speedup patch is in GDB. There is a glibc component too, see
https://sourceware.org/gdb/wiki/LinkerInterface for details of how to check.
Is the requested feature something LLNL continues to desire? If so should likely be targeted at DTS 8+.
My understanding is most of this was addressed with some of the changes which went into DWARF4 and DWARF5 so that all the locations in the binary that could reference a particular line number are more easy to enumerated. This is a bigger issue with C++ codes and that is where things like this showed up.
This has never been a problem with DWARF, it is a problem with internal GDB data structures and their processing. And GDB performance has not changed in this respect.
'm going to close this one. At this point in RHEL7's life cycle, new features aren't really allowed (without strong business justification). Plus, this work still hasn't made it upstream.