[Libguestfs] [PATCH] tests: simple test for execstack supermin

Richard W.M. Jones rjones at redhat.com
Fri May 9 21:19:02 UTC 2014


On Fri, May 02, 2014 at 02:47:11PM +0200, Pino Toscano wrote:
> Add a simple test which uses scanelf or readelf to detect whether the
> supermin executable is really not executable.

FYI this test failed on ARM.  It's a genuine failure showing that we
are building a supermin binary with an executable stack.

It turns out to be an OCaml bug.  Years ago I filed:

http://caml.inria.fr/mantis/view.php?id=4564

It was only fixed upstream on i686 & x86-64 ... not on ARM.

$ touch empty.ml
$ ocamlopt empty.ml 
$ readelf -lW a.out | grep GNU_STACK
  GNU_STACK      0x000000 0x00000000 0x00000000 0x00000 0x00000 RWE 0x4

So I will have to apply the same fix to the OCaml ARM compiler too.

Rich.

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