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Re: get_relocated_path: the configured paths are not looked for?


From: Michael Tokarev
Subject: Re: get_relocated_path: the configured paths are not looked for?
Date: Sun, 23 Apr 2023 21:37:00 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.9.0

23.04.2023 21:33, Michael Tokarev пишет:

$ cd /tmp; printf '#include <stdio.h>\nint main(){puts("Hello!");return 0;}' > hello.c; cp /usr/bin/gcc .; ./gcc hello.c; ./a.out ; ./gcc --version; ls -l gcc; cd /tmp
Hello!

execve("/tmp/../lib/gcc/x86_64-linux-gnu/12/cc1", [...])

Since this is merged-usr system, it finds its component just fine,
that's why it works here in /tmp, doesn't work in a subdir of /tmp,
and doesn't work in your case (non-merged /usr).

Still, GCC is an exception. It is very rare.

/mjt




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