Make sure that the esp is restored before the eflags register.
When the init task is initially restored, system interrupts are activated when the
eflags register is loaded.
If the esp register still points to an address in the interrupt stack
area (from early system initlization) the ISR might overwrite its own
stack.
Closes#4031
Only include the deferred free support if free() is actually used by the
application.
The free() implementation in RTEMS supports that allocated memory is
freed in interrupt context. Since the heap is protected by a mutex, the
frees issued in interrupt context cannot immediately be freed to the
heap, instead they are placed on a deferred free list. This list is
emptied by the core allocation function
rtems_heap_allocate_aligned_with_boundary(). This adds a dependency to
free() in rtems_heap_allocate_aligned_with_boundary(). In order to
better support applications which only allocate memory and never free
it, this dependency should be avoided. Provide a weak default
implementation of _Malloc_Process_deferred_frees() for
rtems_heap_allocate_aligned_with_boundary(). In the free() module
provide the strong implementation.
Close#4032.
These two tests check conditions which no longer exist in the thread
queue implementation. The are obsolete since the change to use
red-black trees for the priority queues.
Rename internal function T_check_true() to T_check() and use the new
flag T_CHECK_FMT to indicate if a format string is present. This is a
preparation step to make the format string optional.
Make the check context the first parameter.
The API remains the same.
Update #3199.
Rename this header file to later move <t.h> to <rtems/test.h>. The main
feature provided by <rtems/test-info.h> is the output of standard test
information which is consumed by the RTEMS Tester.
Update #3199.
If we interrupt a thread dispatch critical section (thread dispatch
disable level != ISR nest level), then we should not do the fast idle
mode since this may delay an ongoing system call forever.
This adds the possibility to request a retry in the media-listener if an
operation failed. Usefull for example if you want to automatically
reformat a disk if it wasn't possible to mount it.
