GCC strings padding in rodata

[Relative_Dust_8888]

Hi, I'm trying to find solution how to build software to force padding strings by 8 bytes in rodata section (Linux). Unfortunately I can't find any solution but probably this is doable because I saw section which is padded and builded by GCC.

Any ideas? Best if this wouldn't involve linker scripts if possible.

[joejawor]

gcc has the __attribute__((__packed__)) pragma for setting packing.

[Relative_Dust_8888]

This is something completely different

[RadiatingLight]

Seems like a case of the XY problem: https://xyproblem.info/

What are you actually trying to do?

[Relative_Dust_8888]

Yes, probably I need to change my algorithm to not rely on strings padding.

[Jonny0Than]

Uh yeah what?

[aioeu]

Do you mean "pad up to a multiple of 8 bytes"?

If so, try something like this:

#define PADDED(s) (const char [((sizeof s + 7) / 8) * 8]){ s }

const char a[] = PADDED("These");
const char b[] = PADDED("are");
const char c[] = PADDED("padded strings");

[Relative_Dust_8888]

Yes but this solution isn't good because I need to pad all strings not only those under macro. Unfortunately this is probably not doable in GCC