volatile needs to be casted away behind a [[gnu::noipa]] function, to
make that invisible to the compiler. Otherwise, the compiler can see
that it is being discarded, and is free to abuse Undefined Behavior.
Closes: <https://github.com/shadow-maint/shadow/issues/1028>
Reported-by: Chris Hofstaedtler <zeha@debian.org>
Tested-by: Chris Hofstaedtler <zeha@debian.org>
Reviewed-by: Chris Hofstaedtler <zeha@debian.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Cherry-picked-from: 6e57238bf9 ("tests/unit/test_xasprintf.c: Fix use of volatile pointer")
Cc: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
This is in preparation for the following commit.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Cherry-picked-from: 3307a8f4f0 ("tests/unit/test_xasprintf.c: Cosmetic")
Cc: Serge Hallyn <serge@hallyn.com>
Cc: Chris Hofstaedtler <zeha@debian.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Alejandro Colomar