Split up the different objects free methods into separate functions.
This helps to avoid a dependency on the workspace in case no objects or
a static set of objects is configured.
Update #3835.
Split up the different objects allocation methods into separate
functions. This helps to avoid a dependency on the workspace in case no
objects or a static set of objects is configured.
Change license to BSD-2-Clause according to file histories.
Update #3053.
Update #3835.
Place idle and MPCI stacks into extra linker sections. This can be
optionally used by applications to control the placement of the stacks.
Update #3835.
Add the Thread_Configuration structure to reduce the parameter count of
_Thread_Initialize(). This makes it easier to add more parameters in
the future. It simplifies the code generation since most architectures
do not have that many registers available for function parameters.
Update #3835.
Use the stack area to allocate the FP context. This considerably
simplifies the application configuration since the task count no longer
influences the configured work space size. With this change the stack
space size is overestimated since an FP context for each thread is
accounted. Memory constraint applications can use the stack size for
fine tuning.
Update #3835.
Use a dedicate system initialization step to zero the memory used for
the workspace and C program heap.
This avoids dead code in case CONFIGURE_ZERO_WORKSPACE_AUTOMATICALLY is
not configured.
Do not cast to unsigned int to avoid an unsigned long long enum type.
Use a multiplication/division instead to preserve the signedness of the
POSIX status.
Use RTEMS_SYSINIT_ORDER_LAST_BUT_5 instead of RTEMS_SYSINIT_ORDER_LAST
to allow applications and support functions to place system
initialization handlers behind the standard handlers.
Update #3838.
The work area initialization was done by the BSP through
bsp_work_area_initialize(). This approach predated the system
initialization through the system initialization linker set. The
workspace and C program heap were unconditionally initialized. The aim
is to support RTEMS application configurations which do not need the
workspace and C program heap. In these configurations, the workspace
and C prgram heap should not get initialized.
Change all bsp_work_area_initialize() to implement _Memory_Get()
instead. Move the dirty memory, sbrk(), per-CPU data, workspace, and
malloc() heap initialization into separate system initialization steps.
This makes it also easier to test the individual initialization steps.
This change adds a dependency to _Heap_Extend() to all BSPs. This
dependency will be removed in a follow up change.
Update #3838.
The code covered by BSP_GET_WORK_AREA_DEBUG was basically dead code
since there was no normal way to activate it (e.g. via a BSP
configuration option). A follow up patch will bring back this feature
through a CONFIGURE_VERBOSE_SYSTEM_INITIALIZATION configuration option.
Update #3838.
