The loop that checks if the current address is already mapped uses
the same local variable for the chanin node as the newly allocated
chain node so the allocated chain node gets over written.
Added a new local variable for the loop that checks the address
Updates #2859.
Rename NGMP to GR740 and add configs for UT699, UT700, and GR712RC
The UT699 requires -mcpu=leon as it does not support the CAS instruction
provided by -mcpu=leon3. It also requires -mfix-ut699 for errata fixes.
UT700 and GR712RC requires the -mfix-ut700 and -mfix-gr712rc flags that
have been recently added to GCC's master and 7-branch.
Remove -msoft-float from the leon3 config to make the more common case
of using the FPU the default.
Update #3057.
This patch adds NOP instructions to prevent instruction sequences
that are sensitive to the LEON3FT B2BST errata. See GRLIB-TN-0009:
"LEON3FT Stale Cache Entry After Store with Data Tag Parity Error"
for more information.
The sequences are only modified if __FIX_LEON3FT_B2BST is defined.
The patch works in conjunction with the -mfix-ut700, -mfix-gr712rc,
and -mfix-ut699 GCC flags that prevents the sensitive sequences from
being generated.
Update #3057.
Added a mmap file handler to struct _rtems_filesystem_file_handlers_r.
Updated each file handler object to support the default mmap handler.
Updated mmap() to call the mmap handler for MAP_SHARED.
Added a mmap file handler for shm
Added support for MAP_ANON in mmap().
Updates #2859
The EDF SMP scheduler supports simple thread processor affinities
(see #3059) with a small run-time overhead. The current default SMP
scheduler lacks support for thread processor affinities at all. The EDF
SMP scheduler offers a good feature set for most applications. So, use
it by default. Run-time libraries like libgomp, MTAPI, work stealing
schedulers, language interpreters (e.g. Erlang virtual machine),
maintainence of per-processor data (e.g. Universal Memory Allocator
(UMA)), etc. use a one-to-one thread processor affinity for example.
Update #3063.
The set of online processors must be a subset of the thread processor
affinity for the schedulers without arbitrary processor affinity support
to avoid problems in case of processor addition and removal.
Update #3059.
Account for the thread processor affinity and make sure that it is
possible to allocate a processor to each thread dedicated to a scheduler
instance.
Update #3059.
Implement the Processor_mask via <sys/bitset.h>. Provide
_Processor_mask_To_uint32_t() to enable its use in device specific
routines, e.g. interrupt affinity register in an interrupt controller.
Update #3059.
Kevin Kirspel
Sebastian Huber
Daniel Cederman
Sichen Zhao