ART: Fix crash accessing .bss for non-executable oat file.

There are situations where we're running and JIT-compiling
bytecode from a dex file tied to a non-executable oat file
(i.e. its AOT-compiled code cannot be executed) and the
JIT-compiled code can try to store the resolved class or
string in its .bss section which has not been mmapped.
Check whether the oat file is executable before doing the
.bss store.

Note that clearing the pointers to index bss mappings when
loading the oat file as non-executable would also solve the
problem. However, that would prevent oatdump from listing
.bss entries.

Test: No regression test provided, oat files are loaded
      as non-executable only in some odd situations that
      are very difficult to replicate in a test.
Bug: 69928566

Change-Id: Ib91d22f6510dc0d7cc9abe8247f2743706aaa45e

0 files changed, 0 insertions, 0 deletions