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Index > Linux > [ELF64] auto-grow of section alignment, STT_FUNC with a size

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sylware



Joined: 23 Oct 2020
Posts: 477
Location: Marseille/France
sylware 20 Jan 2023, 12:15
ELF section alignment is not grown automatically by inner alignments, expected?

It seems the way to select an ELF symbol type is if of 0-size it is a STT_FUNC, if non-0-size it is a STT_OBJECT. I am suspicious as I have the feeling that the size of a STT_FUNC symbol is pertinent to build shared libs. Did I dream it?
Post 20 Jan 2023, 12:15
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 8367
Location: Kraków, Poland
Tomasz Grysztar 20 Jan 2023, 13:28
With ELF object output you cannot align more than the alignment of the section, and you need to enlarge it explicitly in the SECTION statement.

With ELF executable output all addresses are absolute, so you're free to align to whatever boundary.

The fasm's ELF formatters are pretty minimalistic, with fasmg you do not have to limit yourself to the fasm-compatible ones.
Post 20 Jan 2023, 13:28
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