On 10.10.22 10:17, Sebastian Huber wrote:
On 06/10/2022 10:23, Sebastian Huber wrote:
This patch set started with an 8 byte overwrite of the interrupt stack
while
porting an application from RTEMS 5 to 6.
The overwrite was due to a mismatch of the size returned by
_TLS_Get_allocation_size() and the actual usage of the area. To fix
this issue
it was necessary to add a new CPU port option:
CPU_THREAD_LOCAL_STORAGE_VARIANT. I checked also the glibc
implementations.
It seems that on some architectures (for example powerpc) the TCB is
used for a
couple of more things. For RTEMS, we don't really need the DTV and
TCB. It
could be useful for debuggers, however, then we probably need also
some glibc
compatibility.
Add a new fatal error to catch a failing idle thread initialization:
INTERNAL_ERROR_IDLE_THREAD_CREATE_FAILED. This can only happen if a
thread
create extension fails for an idle thread.
By default, allocate the IDLE task storage areas from the RTEMS
Workspace.
This avoids having to estimate the thread-local storage size in the
default
configuration.
Add the application configuration option
CONFIGURE_IDLE_TASK_STORAGE_SIZE to
request a static allocation of the task storage area for IDLE tasks.
v2:
* Add CONFIGURE_IDLE_TASK_STORAGE_SIZE instead of
CONFIGURE_IDLE_TASK_MINIMUM_STACK_SIZE.
Any objections to commit this version?
I checked in the patch set. All BSPs did build except:
microblaze/kcu105
microblaze/kcu105_qemu
They failed due to:
./librtemscpu.a(threadqops.c.52.o): in function
`_Thread_queue_Queue_enqueue':
/home/EB/sebastian_h/src/rtems/cpukit/score/src/threadqops.c:102:(.text._Thread_queue_Queue_enqueue+0xb4):
relocation truncated to fit: R_MICROBLAZE_32_PCREL_LO against symbol
`__assert_func' defined in .text.__assert_func section in
./librtemscpu.a(__assert.c.52.o)
This seems to be unrelated to the patch set.
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