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AJvYcCV17Zl4SbAI5d8UGSMNVDC9KUclg0oiSA9AHfyPIh+UkrgdzUwAto7Wn137RyEnvXsEsY0rkcfL0SdkCZmUVxv3Ai0bUJ+sSDFDEEKig7Xzat39Lclqoz8eWwlFXTW+l3bHwT+Q9nBObew5iDqsglTodU1Zl1d3Z1LMFcHicH+DYebXTWKJk6bLUKM9gntSHg== X-Gm-Message-State: AOJu0YwrwryXL4QzV1VP8GzMK8MvVJW3GTP2QVCu24v0LCVNPRod/MG6 bugBKiLtd0/hPK+ta4VV+5pWWcrfprBnuXg9MJ4GzVoBZJha30fs X-Google-Smtp-Source: AGHT+IEdFO0DZXDicBs2YtJa8wnYLQgX0gWvZJCaWeA2D/Fqngr0IrjmGs2S8E5C38UI9Lm2WpxoaQ== X-Received: by 2002:a05:6a20:12d1:b0:1c4:87d5:c7c8 with SMTP id adf61e73a8af0-1c699550d42mr22562207637.3.1723042743916; Wed, 07 Aug 2024 07:59:03 -0700 (PDT) Received: from smtpclient.apple ([47.89.225.180]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7106ed2ac2dsm8488114b3a.194.2024.08.07.07.58.58 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 07 Aug 2024 07:59:03 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3774.500.171.1.1\)) Subject: Re: [PATCH v2 3/3] tracing/kprobes: Use APIs that matches symbols without .XXX suffix From: zhang warden In-Reply-To: <6F6AC75C-89F9-45C3-98FF-07AD73C38078@fb.com> Date: Wed, 7 Aug 2024 22:58:45 +0800 Cc: Steven Rostedt , Song Liu , "live-patching@vger.kernel.org" , LKML , "linux-trace-kernel@vger.kernel.org" , Josh Poimboeuf , Jiri Kosina , Miroslav Benes , Petr Mladek , Joe Lawrence , Nathan Chancellor , "morbo@google.com" , Justin Stitt , Luis Chamberlain , Leizhen , "kees@kernel.org" , Kernel Team , Matthew Maurer , Sami Tolvanen , Masami Hiramatsu Content-Transfer-Encoding: quoted-printable Message-Id: <87F7024C-9049-4573-829B-79261FC87984@gmail.com> References: <20240802210836.2210140-1-song@kernel.org> <20240802210836.2210140-4-song@kernel.org> <20240806144426.00ed349f@gandalf.local.home> <20240806160049.617500de@gandalf.local.home> <20240806160149.48606a0b@gandalf.local.home> <6F6AC75C-89F9-45C3-98FF-07AD73C38078@fb.com> To: Song Liu X-Mailer: Apple Mail (2.3774.500.171.1.1) > In my GCC built, we have suffixes like ".constprop.0", ".part.0", = ".isra.0",=20 > and ".isra.0.cold".=20 A fresher's eye, I met sometime when try to build a livepatch module and = found some mistake caused by ".constprop.0" ".part.0" which is generated = by GCC. These section with such suffixes is special and sometime the symbol = st_value is quite different. What is these kind of section (or symbol) = use for? Regards Wardenjohn