In contrast to message queues created by rtems_message_queue_create(), the
message queues constructed by this directive use a user-provided message buffer
storage area.
Add RTEMS_MESSAGE_QUEUE_BUFFER() to define a message buffer type for message
buffer storage areas.
Update #4007.
Add Message_queue_Control::is_global if RTEMS_MULTIPROCESSING is defined. This
reduces the Message_queue_Control size in standard RTEMS configurations.
Update #4007.
Move the CORE_message_queue_Buffer definition to a separate header file to be
able to use it independent of the remaining Message Queue Handler API.
Change license to BSD-2-Clause according to file history.
Update #3053.
Update #4007.
Merge CORE_message_queue_Buffer structure into
CORE_message_queue_Buffer_control.
Use a zero-length array for the actual message buffer. This reduces the
structure size on all targets.
Update #4007.
The previous multiplication error check is broken on 64-bit machines. Use the
recommended check from SEI CERT C Coding Standard, "INT30-C. Ensure that
unsigned integer operations do not wrap".
Make sure the message size computation does not overflow.
Update #4007.
commit 20c89ab7c5091ee48535392cae2177aa1a1c43eb
Author: Segher Boessenkool <segher@kernel.crashing.org>
Date: Fri Jan 12 21:50:52 2018 +0100
rs6000: Remove -mstring
-mstring is only enabled by default on 601, and with -Os on some
configurations. It is almost always slower (than not using it) and
does not very often lead to smaller code.
This patch disables it. If a user uses -mstring he gets a warning
(but not with -mno-string). I left the target attribute in place, it
just doesn't do anything anymore.
The patch also deletes a whole bunch of code. The 'N' and 'O' output
modifiers are now unused, but now is not the time to delete them.
Use -B for the linker since some architectures use extra start files defined by
the GCC specification and provided by the BSP, for example powerpc. Start
files are not found by -L.
In the long run, the GCC defined start files should be provided by GCC. This
is a GCC 11 topic.
Update #3818
Add a general purpose test suite for validation tests.
This is the first test suite generated from a specification item in the
rtems-central repository.
Update #3959.
In contrast to rtems_task_create() this function constructs a task with
a user-provided task storage area. The new directive uses a
configuration structure instead of individual parameters.
Add RTEMS_TASK_STORAGE_SIZE() to calculate the recommended size of a
task storage area based on the task attributes and the size dedicated to
the task stack and thread-local storage. This macro may allow future
extensions without breaking the API.
Add application configuration option
CONFIGURE_MINIMUM_TASKS_WITH_USER_PROVIDED_STORAGE to adjust RTEMS
Workspace size estimate.
Update #3959.
Add this application configuration option. This configuration option can be
used to reserve space for the dynamic linking of modules with thread-local
storage objects.
Add RTEMS_TASK_STORAGE_ALIGNMENT to define the minium alignment of a
thread-local storage size.
Update #4074.
