Re: F40 Change Proposal: Linker Error on Security Issues (System-Wide)

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On Mon, Nov 13, 2023 at 07:26:04PM -0800, John Reiser wrote:
> >Also, under what circumstances would thread local storage segments be
> >executable?
> 
> When the assembly-language source contains a statement such as
>     .section my_section_name,"atx"
> where the "atx" are the attributes of the ElfXX_Section.

Why would anyone do that?  TLS is used to store data in my experience.

Rich.

> See the key to the abbreviations in the output of
>    readelf --sections a.elf
> Namely:
> -----
> Key to Flags:
>   W (write), A (alloc), X (execute), M (merge), S (strings), I (info),
>   L (link order), O (extra OS processing required), G (group), T (TLS),
>   C (compressed), x (unknown), o (OS specific), E (exclude),
>   D (mbind), l (large), p (processor specific)
> -----
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