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SubjectRe: [PATCH v6 03/30] objtool: Disassemble code with libopcodes instead of running objdump
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On 12/8/25 23:51, Alexandre Chartre wrote:
>
> On 12/9/25 07:58, Guenter Roeck wrote:
>> Hi,
>>
>> On Fri, Nov 21, 2025 at 10:53:13AM +0100, Alexandre Chartre wrote:
>>> objtool executes the objdump command to disassemble code. Use libopcodes
>>> instead to have more control about the disassembly scope and output.
>>> If libopcodes is not present then objtool is built without disassembly
>>> support.
>>>
>>> Signed-off-by: Alexandre Chartre <alexandre.chartre@oracle.com>
>>
>> With this patch in mainline, I get the following build error when trying
>> to build x86_64:defconfig (and other configurations).
>>
>> Bisect log is attached. I see the problem with gcc 11.4.0, 13.3.0, and
>> 14.3.0. I tried with both Ubuntu 22.04 and 24.04.
>>
>
> This sounds like a configuration issue depending on the binutils version; in
> particular the setting of DISASM_INIT_STYLED (although that's supposed to be
> automatically configured by tools/objtool/Makefile).
>
> Which binutils-devel version are you using?
>

I tried 2.38 (with gcc 11.4), 2.42 (with gcc 13.3), and 2.44 (with gcc 14.3)
in three different environments (Ubuntu 12.4, 14.4, and self-built tools).

Guenter


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