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Re: [PATCH] x86/boot: Fix build with LLVM toolchain
- To: Frediano Ziglio <frediano.ziglio@xxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 6 Nov 2024 11:59:16 +0100
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Wed, 06 Nov 2024 10:59:29 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 06.11.2024 07:56, Frediano Ziglio wrote:
> On Tue, Nov 5, 2024 at 5:06 PM Jan Beulich <jbeulich@xxxxxxxx> wrote:
>>
>> On 05.11.2024 17:35, Frediano Ziglio wrote:
>>> On Tue, Nov 5, 2024 at 3:32 PM Jan Beulich <jbeulich@xxxxxxxx> wrote:
>>>>
>>>> On 05.11.2024 15:55, Frediano Ziglio wrote:
>>>>> This toolchain generates different object and map files.
>>>>> Account for these changes.
>>>>
>>>> At least briefly mentioning what exactly the differences are would be
>>>> quite nice, imo.
>>>>
>>>
>>> What about.
>>>
>>> Object have 3 additional sections which must be handled by the linker
>>> script.
>>
>> I expect these sections are there in both cases. The difference, I assume,
>> is that for the GNU linker they don't need mentioning in the linker script.
>> Maybe that's what you mean to say, but to me at least the sentence can also
>> be interpreted differently.
>
> Why do you expect such sections? They are used for dynamic symbols in
> shared objects, we don't use shared objects here. Normal object
> symbols are not handled by these sections. GNU compiler+linker (we
> link multiple objects together) do not generate these sections. So the
> comment looks correct to me.
About every ELF object will have .symtab and .strtab, and many also a
separate .shstrtab. There's nothing "dynamic" about them. IOW - I'm
confused by your reply.
Jan
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