[.util]shareable_image_wrap.c.in was never useful because lib$spawn()
insisted on combining stdout and stderr into one.
Instead, we introduce two scripts that create and destroy a temporary
environment where the local shareable images become available,
[.util]local_shlib.com and [.util]unlocal_shlib.com. They also define
DBG$IMAGE_DSF_PATH, which is require so the debugger can find the Debug
Symbol Files.
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2947)
The background story is that util/shlib_wrap.sh was setting LD_PRELOAD
or similar platform dependent variables, just in case the shared
libraries were built with -rpath. Unfortunately, this doesn't work
too well with asan, msan or ubsan.
So, the solution is to forbid the combination of shared libraries,
-rpath and any of the sanity analyzers we can configure.
This changes util/shlib_wrap.sh so it only contains the code that sets
LD_PRELOAD when -rpath has been used when configuring.
Reviewed-by: Rich Salz <rsalz@openssl.org>
