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Fri, 15 May 2026 03:00:54 -0700 (PDT) X-Received: by 2002:a05:6000:4287:b0:43e:aa43:243 with SMTP id ffacd0b85a97d-45e5c6130dbmr4280154f8f.43.1778839253790; Fri, 15 May 2026 03:00:53 -0700 (PDT) Received: from localhost ([31.111.84.232]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-45da15a6454sm13122960f8f.34.2026.05.15.03.00.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 May 2026 03:00:53 -0700 (PDT) From: Andrew Burgess To: gdb-patches@sourceware.org Cc: Andrew Burgess Subject: [PATCH 0/3] Use C++ type traits check to catch bugs in Python API Date: Fri, 15 May 2026 11:00:45 +0100 Message-Id: X-Mailer: git-send-email 2.25.4 MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: MFuO15GCjJCNFy0UNk89Ri2FnEvplO2zoqzoOwYplqo_1778839254 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true 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 While looking at a bug with the Python API I realised that we could make use of static_assert and C++ type traits to catch this class of bug. This series has 3 patches, #1 adds the static_assert check to every place in GDB where we don't currently have a bug. Patch #2 fixes an existing bug in GDB, and then adds the final static_assert which covers this case. Patch #3 adds a new test that scans the GDB source code to make sure that there is a suitable static_assert for every PyObject sub-class, this ensures the static_assert will be added to any new code going forward. Thanks, Andrew --- Andrew Burgess (3): gdb/python: add type traits check for all PyObject sub-classes gdb/python: fix use of frame_info_ptr within pending_frame_object gdb/testsuite: add a test to check for Python traits static_assert gdb/python/py-arch.c | 2 + gdb/python/py-block.c | 4 + gdb/python/py-breakpoint.c | 2 + gdb/python/py-cmd.c | 2 + gdb/python/py-color.c | 2 + gdb/python/py-connection.c | 2 + gdb/python/py-corefile.c | 4 + gdb/python/py-disasm.c | 8 + gdb/python/py-events.h | 2 + gdb/python/py-frame.c | 2 + gdb/python/py-instruction.c | 2 + gdb/python/py-lazy-string.c | 2 + gdb/python/py-linetable.c | 6 + gdb/python/py-membuf.c | 2 + gdb/python/py-micmd.c | 2 + gdb/python/py-param.c | 2 + gdb/python/py-prettyprint.c | 2 + gdb/python/py-record-btrace.c | 2 + gdb/python/py-record.c | 2 + gdb/python/py-record.h | 4 + gdb/python/py-ref.h | 3 + gdb/python/py-registers.c | 8 + gdb/python/py-style.c | 2 + gdb/python/py-symbol.c | 2 + gdb/python/py-symtab.c | 4 + gdb/python/py-tui.c | 2 + gdb/python/py-type.c | 4 + gdb/python/py-unwind.c | 55 +++--- gdb/python/py-value.c | 2 + gdb/python/python-internal.h | 2 + gdb/python/python-traits.h | 92 +++++++++++ gdb/testsuite/gdb.gdb/python-traits-check.exp | 156 ++++++++++++++++++ 32 files changed, 368 insertions(+), 20 deletions(-) create mode 100644 gdb/python/python-traits.h create mode 100644 gdb/testsuite/gdb.gdb/python-traits-check.exp base-commit: 80491726b42ff67e06e07068e0e29b66b7595a73 -- 2.25.4