From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from troutmask.apl.washington.edu (troutmask.apl.washington.edu [128.95.76.21]) by sourceware.org (Postfix) with ESMTPS id 64A9B385E013 for ; Fri, 20 Aug 2021 06:46:52 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 64A9B385E013 Received: from troutmask.apl.washington.edu (localhost [127.0.0.1]) by troutmask.apl.washington.edu (8.16.1/8.16.1) with ESMTPS id 17K6kpNX028183 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Thu, 19 Aug 2021 23:46:51 -0700 (PDT) (envelope-from sgk@troutmask.apl.washington.edu) Received: (from sgk@localhost) by troutmask.apl.washington.edu (8.16.1/8.16.1/Submit) id 17K6kpfk028182; Thu, 19 Aug 2021 23:46:51 -0700 (PDT) (envelope-from sgk) Date: Thu, 19 Aug 2021 23:46:51 -0700 From: Steve Kargl To: Arjen Markus Cc: Fortran List Subject: Re: F2018 C937 Message-ID: <20210820064651.GA28166@troutmask.apl.washington.edu> References: <20210817190155.GA13357@troutmask.apl.washington.edu> <20210819162310.GA24230@troutmask.apl.washington.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, KAM_NUMSUBJECT, KAM_SHORT, SPF_HELO_NONE, SPF_NONE, SUBJ_ALL_CAPS, TXREP autolearn=no autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: fortran@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Fortran mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 20 Aug 2021 06:47:03 -0000 Feel free to ask questions. I forgot to point to the contributing page https://gcc.gnu.org/contribute.html At one time, you need to assign copyright to the FSF. That is no longer required. Scan the above page for details. -- steve On Fri, Aug 20, 2021 at 08:36:42AM +0200, Arjen Markus wrote: > Hi Steve, > > thanks for this detailed workflow. I am familiar enough with git to know > that there are myriads of procedures possible ;). Like you said, the first > three steps have been done. I will get working on step 4 and work my way > down the list. > > Regards, > > Arjen > > Op do 19 aug. 2021 om 18:23 schreef Steve Kargl < > sgk@troutmask.apl.washington.edu>: > > > Arjen, > > > > If this is your first go around with patching gfortran, > > I'll suggest running the testsuite (if you haven't, see > > step 5. below; if you have see step 6.). I suspect you > > already know much of what I enumerate below, but it may > > help others. > > > > With a bug report, the workflow for me is/was > > > > 1. Check versions of the standard to determine if it is > > a bug, and what is the expected result. > > > > 2. Identify where the problem can be addressed in source. > > > > For you (or anyone else interested in gfortran development), > > I suspect there a lot of question about how to do this > > step and the structure of the gfortran source code. I can > > answer some of those questions in follow-up emails. Send > > them to fortran@ and CC me. > > > > 3. Develop patch. > > > > I've done the first 3 steps. You are now at testing the patch. > > > > 4. Build gfortran with the patch. Assuming a Unix-like system, > > I have gcc/gccx with the source and gcc/objx is the build > > directory. So, for a first time build on an N cpu system do > > > > % cd gcc/objx > > % ../gcc/gccx/configure --prefix=$HOME/work/x \ > > --enable-languages=c,c++,fortran,lto \ > > --enable-bootstrap --disable-nls --enable-checking > > % make -j N-1 bootstrap && make install > > > > Otherwise, > > > > % cd gcc/objx > > % make -j N-1 && make install > > > > This installs everything in $HOME/work/x. > > > > 5. Run the testsuite to check for regressions. If any occur, > > fix regressions or fix the patch. > > > > % make -j N-1 check-fortran > > % tail gcc/testsuite/gfortran/gfortran.sum > > > > === gfortran Summary === > > > > # of expected passes 58647 > > # of expected failures 253 > > # of unsupported tests 92 > > objx/gcc/gfortran version 12.0.0 20210816 (experimental) (GCC) > > > > With the C937 and C949 patches, I changed "typespec" to > > "type-spec" in nearby unrelated error messages. Both are > > being used and type-spec matches the standard. This may > > cause a regression, so one or more testcases may need a change. > > The C937 patch did not cause a regression. The C949 one > > did. You'll see a line like > > > > # of unexpected failures 7 > > > > The file gcc/testsuite/gfortran/gfortran.log contains the > > buildlog, which is huge. You can find the failures with > > a search for lines containing ^FAIL. > > > > 6. Prepare ChangeLog. > > > > This has changed with git so you'll need to ask Tobias, > > Thomas, Harald, or on the gcc@ list for guidance. > > > > 7. Submit patch to fortran@gcc and gcc-patches@gcc asking > > for review. > > > > 8. Wait a few days. Ping fortran@gcc and gcc-patches@gcc. > > > > 9. Wait a few days. Ping fortran@gcc and gcc-patches@gcc. > > > > As I developed, the original patch and presumably you reviewed > > it for correctness, you can probably skip step 9. > > > > 10. Wait a few days. Commit patch with or without a review. > > > > I do not know if you need any explicit access/permission to > > commit a patch. I iknow very little about git and how it > > works. > > > > At this point, you can either backport the patch to release > > branches or close the PR. For me, I always did a backport > > if it was a trivial task. At some point, HEAD will diverge > > sufficiently from a branch, I would then stop backporting. > > > > -- > > steve > > > > On Thu, Aug 19, 2021 at 05:10:47PM +0200, Arjen Markus wrote: > > > I have applied the patches locally (take care to restore the tabs ;)). > > > Should I now commit these changes or is there a more formal procedure > > > involved? > > > > > > Regards, > > > > > > Arjen > > > > > > Op do 19 aug. 2021 om 08:59 schreef Arjen Markus < > > arjen.markus895@gmail.com > > > >: > > > > > > > Hi Steve, > > > > > > > > I am willing to take up this challenge ;), as well as the patch for > > C949. > > > > It would be my next attempt to get acquainted with the source code (a > > first > > > > step hopefully to actively contribute). > > > > > > > > Regards, > > > > > > > > Arjen > > > > > > > > Op di 17 aug. 2021 om 21:02 schreef Steve Kargl via Fortran < > > > > fortran@gcc.gnu.org>: > > > > > > > >> For those that might care, I draw your attention to > > > >> > > > >> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101951 > > > >> > > > >> Good opportunity for a lurker to step forward and > > > >> become a gfortran committer. Otherwise, this patch > > > >> will fester in bugzilla the dozen or so other patches > > > >> I've attached to PRs. > > > >> > > > >> -- > > > >> Steve > > > >> > > > > > > > > -- > > Steve > > -- Steve