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Mon, 08 Jun 2026 13:18:24 +0000 Message-ID: Date: Mon, 8 Jun 2026 15:18:24 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 3/3] [gdb/contrib] Fix ELFParseError in dwarf-to-dwarf-assembler.py From: Tom de Vries To: gdb-patches@sourceware.org References: <20260608125420.2318026-1-tdevries@suse.de> <20260608125420.2318026-4-tdevries@suse.de> Content-Language: en-US In-Reply-To: <20260608125420.2318026-4-tdevries@suse.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spamd-Result: default: False [-4.30 / 50.00]; BAYES_HAM(-3.00)[99.99%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-0.998]; MIME_GOOD(-0.10)[text/plain]; FUZZY_RATELIMITED(0.00)[rspamd.com]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; MID_RHS_MATCH_FROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[gdb-patches@sourceware.org]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_NONE(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,suse.de:mid] 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 On 6/8/26 2:54 PM, Tom de Vries wrote: > Pyelftools expects that DW_OP_GNU_implicit_pointer has an 8-byte reference > operand (because it's a 64-bit DWARF unit), but instead it has a 4-byte > reference. > > The DWARF is correct, it's a cornercase of using DW_OP_GNU_implicit_pointer in > DWARF v2, where DW_FORM_ref_addr references have the same size as an address > on the target system, something that was changed in DWARF v3. I've filed this ( https://github.com/eliben/pyelftools/issues/663 ). Thanks, - Tom