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bug#58033: A bug in file-dynamic-info used by validate-runpath in gnu-bu
From: |
Ludovic Courtès |
Subject: |
bug#58033: A bug in file-dynamic-info used by validate-runpath in gnu-build-system and others. |
Date: |
Fri, 07 Oct 2022 10:31:20 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.1 (gnu/linux) |
Hi Lukasz,
Lukasz Olszewski <email@lukaszolszewski.info> skribis:
> Then if I run $ strip --strip-unneeded --enable-deterministic-archives
> file the files can be run fine, but if I use patchelf to add an extra
> folder to the rpath strip complains like this:
> $ strip --strip-unneeded --enable-deterministic-archives
> /home/luk/dev/backup_FileStoreTest
> strip: /home/luk/dev/stt5WKN1: warning: allocated section `.dynstr'
> not in segment
>
> Then the binary has its elf header mangled as described previously.
>
> By copying the unmodified file, modifying rpath and running strip a
> couple of times I found that there is no problem if the rpath change
> results in rpath of the same or shorter length, but adding even one
> byte to it makes 'strip' later complain and mangle the binary.
I believe PatchELF has the potential to break binaries, especially when
trying to extend RUNPATH (the data has to fit in the string table;
PatchELF is supposed to be able to grow the string table as needed, but
there might be bugs.)
It looks like a workaround is to not run ‘strip’, right?
Ludo’.
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Ludovic Courtès <=