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Tue, 18 Nov 2025 11:42:08 -0700 From: Tom Tromey To: Cc: , , Subject: Re: [RFC PATCH] gdb/py: Add pretty printer for __mfp8 for aarch64 In-Reply-To: <20251118141457.83739-1-Ezra.Sitorus@arm.com> (Ezra Sitorus's message of "Tue, 18 Nov 2025 14:14:57 +0000") References: <20251118141457.83739-1-Ezra.Sitorus@arm.com> X-Attribution: Tom Date: Tue, 18 Nov 2025 11:42:07 -0700 Message-ID: <874iqrrxmo.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: 97.122.120.205 X-Source-L: No X-Exim-ID: 1vLQeW-00000004HRo-0riK X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 97-122-120-205.hlrn.qwest.net (bapiya) [97.122.120.205]:34102 X-Source-Auth: tom+tromey.com X-Email-Count: 8 X-Org: HG=bhshared;ORG=bluehost; X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-CMAE-Envelope: MS4xfKs9qsfaETRmZezi4GHj2kvweRerCc3aWRvdJCX9UbYXD5GcsrlVD7k+YkKWF07pmToFYjHNBtbAplHwE1hDYM8aFaHpJM1BnUodLPiI9vrLBJOdmFMc dMFYB1yUz0QC201Dj2M4WXXTlXEI1I/7tHj6cAc7UosrqRCpOR/Go+xav+JAQN4j3Z29soDpv3C+Nx+4Bg0qIc30lEUmi5V409k= 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 >>>>> writes: > __mfp8/mfloat8_t is encoded as unsigned int in DWARF so we are unable to > print out variables of this type properly. Can the compiler be fixed to emit correct DWARF instead? That seems like it would be a lot better, and in keeping with the purpose of DWARF. > +class aarch64_mfp8_printer(gdb.ValuePrinter): > + # Print aarch64 mfp8 formats > + ... > + def convert_to_float(self, s, e, m, m_bits, bias): Classes inheriting from ValuePrinter should use a leading "_" for all attributes other than those specified by the pretty-printing protocol. This rule lets gdb add functionality over time. Tom