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Received: from 97-122-117-2.hlrn.qwest.net ([97.122.117.2]:52792 helo=bapiya) by box5379.bluehost.com with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.99.5) (envelope-from ) id 1wxUqt-00000003fRP-0T1W; Fri, 21 Aug 2026 13:24:31 -0600 From: Tom Tromey To: Simon Marchi Cc: gdb-patches@sourceware.org, Simon Marchi Subject: Re: [PATCH v4 08/10] gdb: add objfile -> solib backlink In-Reply-To: <20260807135259.111194-9-simon.marchi@efficios.com> (Simon Marchi's message of "Fri, 7 Aug 2026 09:52:26 -0400") References: <20260807135259.111194-1-simon.marchi@efficios.com> <20260807135259.111194-9-simon.marchi@efficios.com> X-Attribution: Tom Date: Fri, 21 Aug 2026 13:24:30 -0600 Message-ID: <87tsonnuoh.fsf@tromey.com> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box5379.bluehost.com X-AntiAbuse: Original Domain - sourceware.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tromey.com X-BWhitelist: no X-Source-IP: 97.122.117.2 X-Source-L: No X-Exim-ID: 1wxUqt-00000003fRP-0T1W X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 97-122-117-2.hlrn.qwest.net (bapiya) [97.122.117.2]:52792 X-Source-Auth: tom+tromey.com X-Email-Count: 9 X-Org: HG=bhshared;ORG=bluehost; X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-CMAE-Envelope: MS4xfNkHlsHoBsdcdCv2im/GZgnU8U/WskY3c9WWA7edgXhU1Jzn56OmnA4WGK2vK4SMJdKKFVfQAj5AsZ915nTq7sL8wFTGzeuOuE/T8omeeOmtwCnKtQoN /MehgfZA3b4HQfDe3KZngUpLnmjjug15yw3PuIwxegE2xDfyBmB02W0ibs+3h2Ttx8IWdcC9NkwhOkfkP1u7gkZhIyP9TF7NGlQ= X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces~public-inbox=simark.ca@sourceware.org >>>>> "Simon" == Simon Marchi writes: Simon> From: Simon Marchi Simon> The following "multiple solib_ops" patch will require accessing the Simon> solib(s) related to an objfile fairly often. To make that easier, add Simon> an objfile to solib backlink. Simon> However, I learned that there may be more than one solib linked to one Simon> objfile. The only case I am aware of is the dynamic linker itself Simon> (ld-linux.so), where the same instance (same load address) appears in Simon> all namespaces. We get one solib per "view" of that library, but they Simon> all point to the same objfile. So this backlink is actually a vector. Simon> Rename find_solib_for_objfile to find_one_solib_for_objfile to reflect Simon> that this function returns just one of possible multiple solibs for the Simon> given objfile (if that ever matters). To be clear, this doesn't change Simon> its behavior, this is what it was doing before this patch. Looks good, thanks. Approved-By: Tom Tromey Tom