EXPECT_DEATH requires special handling to work with fdsan, because of
our fork detection. Instead of duplicating the EXPECT_FDSAN_DEATH macro
in the libbase tests as well, move the unique_fd fdsan tests here.
Test: bionic_unit_tests
Change-Id: Ia7b65d4560601d5a78d143aced887a6773b401c0
Add handling for all 4 cases of failure of exchange_owner_tag. Also,
mask off and sign extend the type byte of the owner tag, and add a
test for that.
Test: bionic_unit_tests
Change-Id: Ic7c49f0ee5498623f05c49b5b4cd055db48a4b9f
Add two functions to allow objects that own a file descriptor to
enforce that only they can close their file descriptor.
Use them in FILE* and DIR*.
Bug: http://b/110100358
Test: bionic_unit_tests
Test: aosp/master boots without errors
Test: treehugger
Change-Id: Iecd6e8b26c62217271e0822dc3d2d7888b091a45
