[Bug binutils/14663] strip --only-keep-debug doesn't remove .text, etc.

[i at maskray dot me]

https://sourceware.org/bugzilla/show_bug.cgi?id=14663

Fangrui Song <i at maskray dot me> changed:

           What    |Removed                     |Added
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                 CC|                            |i at maskray dot me

--- Comment #8 from Fangrui Song <i at maskray dot me> ---
I want to ask a related question. Why have these sections to be kept in the
section header table while they are made SHT_NOBITS? Don't debuggers/symbolizes
just pick sections they are interested in, i.e. .debug_* (and probably
SHF_ALLOC .note* if that is why SHF_ALLOC+SHT_NOTE is not made SHT_NOBITS)?

In addition, can the program headers be removed? Currently sh_offset in the
section header table, and p_offset/p_filesz in the program headers are
rewritten. Their values no longer reflect the original values (a consequence of
**removed section contents**). If you inspect such separate debug files with
readelf -Sl, you can get weird section->segment attribution. I find gdb and
lldb are still happy with such separate debug files w/o progam headers.

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