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Mon, 08 Jun 2026 12:54:20 +0000 From: Tom de Vries To: gdb-patches@sourceware.org Subject: [PATCH 2/3] [gdb/contrib] Fix UnicodeDecodeError in dwarf-to-dwarf-assembler.py Date: Mon, 8 Jun 2026 14:54:19 +0200 Message-ID: <20260608125420.2318026-3-tdevries@suse.de> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260608125420.2318026-1-tdevries@suse.de> References: <20260608125420.2318026-1-tdevries@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spamd-Result: default: False [-3.30 / 50.00]; BAYES_HAM(-3.00)[99.99%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-0.986]; MIME_GOOD(-0.10)[text/plain]; FUZZY_RATELIMITED(0.00)[rspamd.com]; ARC_NA(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; RCVD_VIA_SMTP_AUTH(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)[suse.de:mid,imap1.dmz-prg2.suse.org:helo] 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 When running dwarf-to-dwarf-assembler.py on outputs/gdb.rust/unicode/unicode, I run into a UnicodeDecodeError for (using readelf -w): ... <4><9cf>: Abbrev Number: 10 (DW_TAG_variable) <9d3> DW_AT_name : (indirect string, offset: 0xab4): 𝕯 ... or more explicit using llvm-dwarfdump -v: ... 0x000009cf: DW_TAG_variable [10] (0x000009c2) DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000ab4] \ = "\360\235\225\257") ... Fix this by printing: ... DW_TAG_variable { ... DW_AT_name "\xf0\x9d\x95\xaf" DW_FORM_strp ... Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=33970 --- gdb/contrib/dwarf-to-dwarf-assembler.py | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/gdb/contrib/dwarf-to-dwarf-assembler.py b/gdb/contrib/dwarf-to-dwarf-assembler.py index fa32bc4bbab..c1818f9fdb8 100755 --- a/gdb/contrib/dwarf-to-dwarf-assembler.py +++ b/gdb/contrib/dwarf-to-dwarf-assembler.py @@ -174,7 +174,14 @@ class DWARFAttribute: else: return str(self.value) elif isinstance(self.value, bytes): - return self._format_str(self.value.decode("ascii")) + try: + return self._format_str(self.value.decode("ascii")) + except UnicodeDecodeError: + # Print the data as a string in "\x01\x02\x03\x04" format. + result = "" + for byte in self.value: + result += f"\\x{byte:02x}" + return '"' + result + '"' elif isinstance(self.value, str): return self._format_str(self.value) elif isinstance(self.value, ListContainer): -- 2.51.0