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[195.250.132.146]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-485276bc6bbsm16768355e9.15.2026.03.06.00.16.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 Mar 2026 00:16:02 -0800 (PST) Message-ID: <2b3a0699-2170-43f8-917f-4acea18195ca@suse.com> Date: Fri, 6 Mar 2026 09:15:59 +0100 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 v2] module.lds,codetag: force 0 sh_addr for sections To: Joe Lawrence Cc: Luis Chamberlain , Daniel Gomez , Sami Tolvanen , Aaron Tomlin , Petr Mladek , Josh Poimboeuf , linux-modules@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260305015237.299727-1-joe.lawrence@redhat.com> Content-Language: en-US From: Petr Pavlu In-Reply-To: <20260305015237.299727-1-joe.lawrence@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 3/5/26 2:52 AM, Joe Lawrence wrote: > Commit 1ba9f8979426 ("vmlinux.lds: Unify TEXT_MAIN, DATA_MAIN, and > related macros") added .text and made .data, .bss, and .rodata sections > unconditional in the module linker script, but without an explicit > address like the other sections in the same file. > > When linking modules with ld.bfd -r, sections defined without an address > inherit the location counter, resulting in non-zero sh_addr values in > the .ko. Relocatable objects are expected to have sh_addr=0 for these > sections and these non-zero addresses confuse elfutils and have been > reported to cause segmentation faults in SystemTap [1]. > > Add the 0 address specifier to all sections in module.lds, including the > .codetag.* sections via MOD_SEPARATE_CODETAG_SECTIONS macro. > > Link: https://sourceware.org/bugzilla/show_bug.cgi?id=33958 > Fixes: 1ba9f8979426 ("vmlinux.lds: Unify TEXT_MAIN, DATA_MAIN, and related macros") > Signed-off-by: Joe Lawrence Reviewed-by: Petr Pavlu -- Thanks, Petr