e3fe3ebb3f
Add tests of the ability to read or write the stack of another thread. Use semaphores for explicit synchronization of the start and end of the other thread to ensure that the attempted stack access occurs while the thread is alive. This ensures that the MMU/MPU has been configured at least once to allow userspace access to the stack, and that any removal of access upon thread termination has not yet occurred. This therefore should exercise changing the MMU/MPU configuration to remove access to the other thread's stack when switching back to our thread. Tested on qemu_x86 (pass) and on frdm_k64f (with and without the ARM userspace patches; with them, the tests pass; without, they fail as expected). Also, as with most of the other tests, if you replace ztest_user_unit_test() with ztest_unit_test(), then the tests fail as expected. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> |
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| .. | ||
| app_memory | ||
| obj_validation | ||
| protection | ||
| stackprot | ||
| userspace | ||