Sorry for not replying sooner, I was on vacation the last couple of days. Ew - why do it that way? If I as a user specified -g, I sure don't want that to magically become -gstabs. Overriding Autoconf's addition of -g with -gstabs+ is fine, but overriding what the user says is just wrong.
Brian On Jul 26, 2010, at 9:07 AM, Jeff Squyres wrote: > Ok; a commit is queued up for the trunk tonight that should do this: > > - If we're on Darwin > - And -g is in CFLAGS already > - Then do a test compile to see if -gstabs+ works > - If it does, then add it to CFLAGS > - Then double check and uniq-ify CFLAGS (to ensure -gstabs+ wasn't in there > already) > > > On Jul 25, 2010, at 7:52 AM, Ralph Castain wrote: > >> I can't speak for totalview, but as a developer on Darwin, adding -gstabs+ >> enables the clean use of gdb and would help immensely! >> >> >> On Jul 15, 2010, at 8:14 AM, Jeff Squyres wrote: >> >>> Resurrecting this orphaned discussion... >>> >>> Peter: so what exactly do you need? -gstabs or -gstabs+ when compiling >>> these files on Darwin? (or, more specifically, whenever the back-end >>> compiler supports one/both of these flags) >>> >>> >>> On Jun 9, 2010, at 11:43 PM, Paul H. Hargrove wrote: >>> >>>> >>>> >>>> Jeff Squyres wrote: >>>>> On Jun 4, 2010, at 5:02 PM, Peter Thompson wrote: >>>>> >>>>> >>>>>> It was suggested by our CTO that if these files were compiled as to >>>>>> produce STABS debug info, rather than DWARF, then the debug info would >>>>>> be copied into the executables and shared libraries, and we would then >>>>>> be able to debug with Open MPI without a problem. I'm not sure if this >>>>>> is the best place to offer that suggestion, but I imagine it's not a bad >>>>>> place to start. ;-) >>>>>> >>>>> >>>>> Having just moved this to the "devel" list... >>>>> >>>>> I don't think we'd mind doing what you propose if it's not too icky. >>>>> These files are explicitly there for debuggers like TV, after all. >>>>> >>>>> So how do we do that? (I don't know anything about STABS or DWARF) >>>>> >>>>> >>>> >>>> Extracted from "man gcc" on Darwin host: >>>> >>>> >>>> -gstabs >>>> Produce debugging information in stabs format (if that is >>>> supported), without GDB >>>> extensions. This is the format used by DBX on most BSD >>>> systems. On MIPS, Alpha and >>>> System V Release 4 systems this option produces stabs >>>> debugging output which is not >>>> understood by DBX or SDB. On System V Release 4 systems this >>>> option requires the GNU >>>> assembler. >>>> >>>> -gstabs+ >>>> Produce debugging information in stabs format (if that is >>>> supported), using GNU >>>> extensions understood only by the GNU debugger (GDB). The >>>> use of these extensions is >>>> likely to make other debuggers crash or refuse to read the >>>> program. >>>> >>>> >>>> >>>> -- >>>> Paul H. Hargrove phhargr...@lbl.gov >>>> Future Technologies Group >>>> HPC Research Department Tel: +1-510-495-2352 >>>> Lawrence Berkeley National Laboratory Fax: +1-510-486-6900 >>>> >>>> _______________________________________________ >>>> devel mailing list >>>> de...@open-mpi.org >>>> http://www.open-mpi.org/mailman/listinfo.cgi/devel >>>> >>> >>> >>> -- >>> Jeff Squyres >>> jsquy...@cisco.com >>> For corporate legal information go to: >>> http://www.cisco.com/web/about/doing_business/legal/cri/ >>> >>> >>> _______________________________________________ >>> devel mailing list >>> de...@open-mpi.org >>> http://www.open-mpi.org/mailman/listinfo.cgi/devel >> >> >> _______________________________________________ >> devel mailing list >> de...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/devel >> > > > -- > Jeff Squyres > jsquy...@cisco.com > For corporate legal information go to: > http://www.cisco.com/web/about/doing_business/legal/cri/ > > > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel > -- Brian W. Barrett Dept. 1423: Scalable System Software Sandia National Laboratories
