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[143.159.226.105]) by smtp.gmail.com with ESMTPSA id az25-20020a05600c601900b004095874f6d3sm15753556wmb.28.2023.11.07.03.06.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Nov 2023 03:06:39 -0800 (PST) From: Andrew Burgess To: Tom Tromey Cc: Tom Tromey , gdb-patches@sourceware.org Subject: Re: [PATCH v2 00/31] Baby step for objfile splitting In-Reply-To: <87sf5is08f.fsf@tromey.com> References: <20231105-split-objfile-2023-bound-sym-october-v2-0-dbd2d158bbc3@tromey.com> <87y1faud2o.fsf@redhat.com> <87sf5is08f.fsf@tromey.com> Date: Tue, 07 Nov 2023 11:06:37 +0000 Message-ID: <87il6du8jm.fsf@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain X-Spam-Status: No, score=-5.5 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Tom Tromey writes: >>>>>> "Andrew" == Andrew Burgess writes: > > Andrew> Tom Tromey writes: >>> Every year or so, I take a stab at the objfile splitting work. This >>> always fails and I end up not sending anything. > > Andrew> For those of us who aren't familiar with the background here. Do you > Andrew> have a link to a previous description of, or could you give a > Andrew> description of, what the "objfile splitting work" is about. What's the > Andrew> longer term goal, of which this series is a step towards. > > The basic idea is that debug info should be independent of the program > space. That way, symbol tables can be shared across inferiors. > > The project is somewhat documented here: > > https://sourceware.org/gdb/wiki/ObjfileSplitting > > It's been vaguely ongoing for a very long time. I managed to implement > it for minsyms, psyms, and line tables; but symbols and blocks have > proven to be more difficult, with a trail of failed branches behind > them. Thanks. I have heard this discussed before, I'd just not associated with that name. Thanks, Andrew