e098eac195
cc3200: Start the simplelink spawn task using the static task creator.
...
In VStartSimpleLinkSpawnTask we change xTaskCreate to xTaskCreateStatic
so that the task is created using statically allocated memory for the TCB
and stack.
This means that xTaskCreate function is no longer needed (the static
version is now used exclusively).
2016-06-28 11:28:53 +01:00
5b8e884573
cc3200: Remove .boot section attribute from osi_TaskCreate function.
...
This function is no longer used. Having the .boot section attribute
meant that it was included in the firmware regargless of use. Without
this attribute the linker can remove the function.
2016-06-28 11:28:53 +01:00
1d5aa9d245
cc3200: In FreeRTOSConfig.h, comment on configSUPPORT_STATIC_ALLOCATION.
...
This config variable is now needed regardless of whether threading is
enabled or not.
2016-06-28 11:28:53 +01:00
8b9ddf4031
tests/thread: Allow some tests to run on ports with not much heap.
2016-06-28 11:28:52 +01:00
63d05228a3
tests/thread: Allow thread_sleep1 to run without floating point.
2016-06-28 11:28:52 +01:00
53562213c8
cc3200: Enable the GIL.
2016-06-28 11:28:52 +01:00
fa2ac93c3a
cc3200/mpthreadport: Move mem alloc outside the thread_mutex lock.
...
Otherwise there could be a deadlock, with the GC's mutex and
thread_mutex.
2016-06-28 11:28:52 +01:00
757146efe3
cc3200/mpthreadport: Scan more root pointers from thread data.
2016-06-28 11:28:52 +01:00
17886828c8
cc3200/gccollect: Use MP_STATE_THREAD(stack_top) to get top of stack.
2016-06-28 11:28:52 +01:00
3b0fbfe4e5
cc3200/mpthreadport: Properly initialise the main thread's data.
2016-06-28 11:28:52 +01:00
27241293c4
cc3200/mpthreadport: Make mutex statically allocated.
...
Reduced the need for the FreeRTOS heap to allocate the mutex.
2016-06-28 11:28:52 +01:00
0455755296
cc3200: Use xTaskCreateStatic instead of osi_TaskCreate.
...
This allows to statically allocate the TCB (thread control block) and
thread stack in the BSS segment, reducing the need for dynamic memory
allocation.
2016-06-28 11:28:52 +01:00
77e37ff98b
py/mpthread: Include mpstate.h when defining GIL macros.
2016-06-28 11:28:52 +01:00
15e68277c1
tests/thread: Make sure that thread tests don't rely on floating point.
2016-06-28 11:28:52 +01:00
5b7789d519
tests/thread: Make stack-size test run correctly and reliable on uPy.
2016-06-28 11:28:52 +01:00
94238d4ae5
py/nlrsetjmp: Update to take into account new location of nlr_top.
...
It's now accessed via the MP_STATE_THREAD macro.
2016-06-28 11:28:52 +01:00
1df4168c33
py/nlrthumb: Convert NLR thumb funcs from asm to C with inline-asm.
...
Now only the bits that really need to be written in assembler are written
in it, otherwise C is used. This means that the assembler code no longer
needs to know about the global state structure which makes it much easier
to maintain.
2016-06-28 11:28:52 +01:00
c9520c591b
cc3200: Fix call to new exception to be _msg instead of _arg1.
2016-06-28 11:28:51 +01:00
df95f52583
py/modthread: Allow to properly set the stack limit of a thread.
...
We rely on the port setting and adjusting the stack size so there is
enough room to recover from hitting the stack limit.
2016-06-28 11:28:51 +01:00
eef4f13a33
cc3200: Add basic threading capabilities.
...
Can create a new thread and run it. Does not use the GIL at this point.
2016-06-28 11:28:51 +01:00
9b1c1262dc
cc3200: Define our own FreeRTOS heap so it can go in a special segment.
2016-06-28 11:28:50 +01:00
5c0fc73f33
cc3200: Update FreeRTOS to v9.0.0.
...
This is a pristine copy (actually a subset of files) of upstream FreeRTOS
v9.0.0.
Modifications to the previous version of FreeRTOS (v8.1.2) included
addition of __attribute__ ((section (".boot"))) to the following
functions:
pxPortInitialiseStack
prvTaskExitError
prvPortStartFirstTask
xPortStartScheduler
vPortSetupTimerInterrupt
xTaskGenericCreate
vTaskStartScheduler
prvInitialiseTCBVariables
prvInitialiseTaskLists
prvAllocateTCBAndStack
This attribute will need to be reinstated on a case-by-case basis
because some of the above functions are now removed/changed.
2016-06-28 11:28:50 +01:00
e90b6ce0b5
py/mpthread.h: Move GIL macros outside MICROPY_PY_THREAD block.
...
The GIL macros are needed even if threading is not enabled.
2016-06-28 11:28:50 +01:00
94d2919b77
unix/modtime: Release the GIL when sleeping.
2016-06-28 11:28:50 +01:00
c567afc5fa
py/modthread: Make Lock objects work when GIL is enabled.
2016-06-28 11:28:50 +01:00
a1c93a62b1
py: Don't use gc or qstr mutex when the GIL is enabled.
...
There is no need since the GIL already makes gc and qstr operations
atomic.
2016-06-28 11:28:50 +01:00
4cec63a9db
py: Implement a simple global interpreter lock.
...
This makes the VM/runtime thread safe, at the cost of not being able to
run code in parallel.
2016-06-28 11:28:50 +01:00
1f54ad2aed
py: Make interning of qstrs thread safe.
2016-06-28 11:28:50 +01:00
b7274e91bc
tests/thread: Add test for concurrent mutating of user instance.
2016-06-28 11:28:50 +01:00
2e4cdae4fd
tests/thread: Add test for concurrent interning of strings.
...
Qstr code accesses global state and needs to be made thread safe.
2016-06-28 11:28:50 +01:00
094a0dd11a
tests/thread: Add tests that mutate shared objects.
...
Tests concurrent mutating access to: list, dict, set, bytearray.
2016-06-28 11:28:50 +01:00
c73cf9d931
tests/thread: Rename thread_stress_XXX.py to stress_XXX.py.
2016-06-28 11:28:50 +01:00
f443504f86
unix/mpthreadport: Suppress compiler warning about unused arguments.
2016-06-28 11:28:50 +01:00
f1dbd2909e
unix/gccollect: Provide declaration of exported function.
2016-06-28 11:28:50 +01:00
c2508ac8bd
unix/mpthreadport: Use SA_SIGINFO for GC signal handler.
...
SA_SIGINFO allows the signal handler to access more information about
the signal, especially useful in a threaded environment. The extra
information is not currently used but it may prove useful in the future.
2016-06-28 11:28:49 +01:00
3653f5144a
py/gc: Fix GC+thread bug where ptr gets lost because it's not computed.
...
GC_EXIT() can cause a pending thread (waiting on the mutex) to be
scheduled right away. This other thread may trigger a garbage
collection. If the pointer to the newly-allocated block (allocated by
the original thread) is not computed before the switch (so it's just left
as a block number) then the block will be wrongly reclaimed.
This patch makes sure the pointer is computed before allowing any thread
switch to occur.
2016-06-28 11:28:49 +01:00
dbd54e0b5b
unix: Implement garbage collection with threading.
...
This patch allows any given thread to do a proper garbage collection and
scan all the pointers of all active threads.
2016-06-28 11:28:49 +01:00
9172c0cb25
py/modthread: Call mp_thread_start/mp_thread_finish around threads.
...
So the underlying thread implementation can do any necessary bookkeeping.
2016-06-28 11:28:49 +01:00
722cff5fd0
py/modthread: Be more careful with root pointers when creating a thread.
2016-06-28 11:28:49 +01:00
f1b6db2218
unix/file: If write syscall returns because of EINTR then try again.
...
As per PEP-475.
2016-06-28 11:28:49 +01:00
e33806aaff
py/gc: Fix 2 cases of concurrent access to ATB and FTB.
2016-06-28 11:28:49 +01:00
7f4658a7ee
py/modthread: Satisfy unused-args warning.
2016-06-28 11:28:49 +01:00
dcc7c5bd89
tests/thread: Add tests for running GC within a thread, and heap stress.
2016-06-28 11:28:49 +01:00
c93d9caa8b
py/gc: Make memory manager and garbage collector thread safe.
...
By using a single, global mutex, all memory-related functions (alloc,
free, realloc, collect, etc) are made thread safe. This means that only
one thread can be in such a function at any one time.
2016-06-28 11:28:49 +01:00
34fc006f5e
py/modthread: Add with-context capabilities to lock object.
2016-06-28 11:28:49 +01:00
801d1b3803
py/modthread: Implement lock object, for creating a mutex.
2016-06-28 11:28:49 +01:00
2dacd604c5
py/modthread: Add exit() function.
...
Simply raises the SystemExit exception.
2016-06-28 11:28:48 +01:00
707f98f207
py/modthread: Add stack_size() function.
2016-06-28 11:28:48 +01:00
3eb7a26809
py/modthread: Properly cast concrete exception pointer to an object.
2016-06-28 11:28:48 +01:00
a791be936a
unix: Add basic thread support using pthreads.
...
Has the ability to create new threads.
2016-06-28 11:28:48 +01:00
Damien George