[RTEMS Project] #3621: Statically initialize object information structures

[RTEMS trac]

#3621: Statically initialize object information structures
------------------------------+-----------------------------
  Reporter:  Sebastian Huber  |      Owner:  Sebastian Huber
      Type:  enhancement      |     Status:  assigned
  Priority:  normal           |  Milestone:  5.1
 Component:  score            |    Version:  5
  Severity:  normal           |   Keywords:
Blocked By:                   |   Blocking:
------------------------------+-----------------------------
 Statically initialize the object information structures to make the
 configuration easier to review and simplify the debugging.

 The workspace size estimate generated by <rtems/confdefs.h> looks
 currently like this:
 {{{
   const rtems_configuration_table Configuration = { ( ( ( (ssize_t)
 ((((((1 +
 0) != 0 ? 1 : 0) * ((Objects_Maximum) ((1 + 0) & ~0x80000000U))) *
 (sizeof(Configuration_Thread_control))) != 0 ? 1 : 0) * ((((((1 + 0) != 0
 ? 1 :
 0) * ((Objects_Maximum) ((1 + 0) & ~0x80000000U))) *
 (sizeof(Configuration_Thread_control)) + (2 * sizeof(uintptr_t) +
 (sizeof(Heap_Protection_block_begin) +
 sizeof(Heap_Protection_block_end)))) +
 ((((sizeof(Heap_Block)) + (8) - 1) - ((sizeof(Heap_Block)) + (8) - 1) %
 (8))) -
 1) - (((((1 + 0) != 0 ? 1 : 0) * ((Objects_Maximum) ((1 + 0) &
 ~0x80000000U)))
 * (sizeof(Configuration_Thread_control)) + (2 * sizeof(uintptr_t) +
 (sizeof(Heap_Protection_block_begin) +
 sizeof(Heap_Protection_block_end)))) +
 ((((sizeof(Heap_Block)) + (8) - 1) - ((sizeof(Heap_Block)) + (8) - 1) %
 (8)))
 }}}
 [more than 500 similar lines]
 {{{
 1) - (((sizeof(Configuration_Initial_Extensions) /
 sizeof((Configuration_Initial_Extensions)[0])) *
 sizeof(User_extensions_Switch_control) + (2 * sizeof(uintptr_t) +
 (sizeof(Heap_Protection_block_begin) +
 sizeof(Heap_Protection_block_end)))) +
 ((((sizeof(Heap_Block)) + (8) - 1) - ((sizeof(Heap_Block)) + (8) - 1) %
 (8))) -
 1) % ((((sizeof(Heap_Block)) + (8) - 1) - ((sizeof(Heap_Block)) + (8) - 1)
 %
 (8)))))) + 0 + 0 + (0 * 1024) + ((((2 * sizeof(uintptr_t) +
 (sizeof(Heap_Protection_block_begin) +
 sizeof(Heap_Protection_block_end)))) +
 (8) - 1) - (((2 * sizeof(uintptr_t) + (sizeof(Heap_Protection_block_begin)
 +
 sizeof(Heap_Protection_block_end)))) + (8) - 1) % (8)) ),
 }}}

 The object controls reside on the heap even for fixed object count
 configuration.  Using a statically allocated array makes it easier to find
 the objects during debugging.

--
Ticket URL: <http://devel.rtems.org/ticket/3621>
RTEMS Project <http://www.rtems.org/>
RTEMS Project