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[2001:8b0:bf73:93f7::51bb:e332]) by smtp.gmail.com with ESMTPSA id y16-20020a05600c365000b0041296bac040sm14285149wmq.26.2024.02.27.09.51.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Feb 2024 09:51:34 -0800 (PST) Received: from jsm28 (helo=localhost) by digraph.polyomino.org.uk with local-esmtp (Exim 4.95) (envelope-from ) id 1rf1c4-001KTi-RO; Tue, 27 Feb 2024 17:51:32 +0000 Date: Tue, 27 Feb 2024 17:51:32 +0000 (UTC) From: Joseph Myers To: Florian Weimer cc: libc-alpha@sourceware.org Subject: Re: [PATCH v3 18/32] elf: Move link map fields used by dependency sorting to writable part In-Reply-To: <3d5c8f150d9112ce00b183638d93ae52694b3b58.1701944612.git.fweimer@redhat.com> Message-ID: References: <3d5c8f150d9112ce00b183638d93ae52694b3b58.1701944612.git.fweimer@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII X-Spam-Status: No, score=-3.6 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: On Thu, 7 Dec 2023, Florian Weimer wrote: > Currently, ld.so re-runs dependency sorting during process shutdown > in _dl_fini, instead of simply using the reverse initialization order. > This means that the l_idx and l_visited fields are written to. There > is no way to report errors during shutdown. If these fields are > always writable, this avoids the need to make link maps writable > during _dl_fini, avoiding the error reporting issue. > > This commit can be reverted once we stop re-sorting dependencies > in _dl_fini. OK. -- Joseph S. Myers josmyers@redhat.com