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Thu, 19 Jun 2025 14:51:19 -0700 (PDT) Received: from [10.67.48.245] ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-237d87391e5sm2605945ad.244.2025.06.19.14.51.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 19 Jun 2025 14:51:18 -0700 (PDT) Message-ID: <7ab95eac-47c0-437b-aa45-5b2871c31a8d@broadcom.com> Date: Thu, 19 Jun 2025 14:51:16 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1] scripts/gdb: fix parsing of MNT_* constants From: Florian Fainelli To: Stephen Brennan , Tony Ambardar , linux-kernel@vger.kernel.org, linux-debuggers@vger.kernel.org Cc: Jan Kiszka , Kieran Bingham , Christian Brauner References: <20250601055027.3661480-1-tony.ambardar@gmail.com> <7984ea38-20cc-49ad-ad72-c6433ad64698@oracle.com> <6388ccbc-3189-46ad-a146-b6b732417a09@broadcom.com> Content-Language: en-US Autocrypt: addr=florian.fainelli@broadcom.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 6/3/25 09:17, Florian Fainelli wrote: > On 6/2/25 21:42, Stephen Brennan wrote: >> On 5/31/25 22:50, Tony Ambardar wrote: >>> Recently, constants in linux/mount.h were changed from integer macros >>> parsable by LX_VALUE() to enums which are not, thus breaking gdb python >>> scripts: >>> >>>    Reading symbols from vmlinux... >>>    Traceback (most recent call last): >>>      File ".../linux/vmlinux-gdb.py", line 25, in >>>        import linux.constants >>>      File ".../linux/scripts/gdb/linux/constants.py", line 19, in >>> >>>        LX_MNT_NOSUID = MNT_NOSUID >>>    NameError: name 'MNT_NOSUID' is not defined >>> >>> Update to parse with LX_GDBPARSED(), which correctly handles enums. >>> >>> Fixes: 101f2bbab541 ("fs: convert mount flags to enum") >>> Signed-off-by: Tony Ambardar >> >> Hi Tony, >> >> I was totally unaware that these constants were being consumed by >> another debugger, and having fixed them for one, I broke them for >> another! >> >> Thanks for the fix. Having read through the preprocessor magic and this >> change, they make sense to me. In the future, I'll be sure to make an >> extra check for GDB users when updating enums. >> >> Reviewed-by: Stephen Brennan > > Not targeted to anyone in particular but this is a recurring problem, > the GDB scripts are typically not part of any CI and it is not natural > to grep for constant names outside of the C/Rust code where they are > being used... > > I suppose that QEMU it should be much easier to ensure that GDB scripts > are being exercised than with my current set-up using OpenOCD + real > hardware... And also: Tested-by: Florian Fainelli Jan, Kieran, can you please pick this up? Thanks! -- Florian