On Mon, Apr 18, 2016 at 11:01:48AM +0200, Richard Biener wrote: > To summarize: there is currently no testcase for a wrong-code issue > because there is no wrong-code issue.
That depends entirely on how far you are willing to bend the ELF gABI. Any testcase the takes the address of a protected visibility variable defined in a shared library now can get the wrong answer, since you can argue that any address outside the shared library is wrong according to the gABI. I expect you can also write a testcase using a const protected var in a shared library that ought to segfault on writing to the var from code within the shared library, that now merrily writes to a .dynbss copy. -- Alan Modra Australia Development Lab, IBM
