Commit Graph

339 Commits

Author SHA1 Message Date
Damien George
916c3fd23f py/scheduler: Add optional port hook for when something is scheduled.
So that a port can "wake up" when there is work to do.

Signed-off-by: Damien George <damien@micropython.org>
2021-04-30 15:32:16 +10:00
Damien George
e9e9c76ddf all: Rename mp_keyboard_interrupt to mp_sched_keyboard_interrupt.
To match mp_sched_exception() and mp_sched_schedule().

Signed-off-by: Damien George <damien@micropython.org>
2021-04-30 15:13:43 +10:00
Damien George
7cbf826a95 py/scheduler: Add mp_sched_exception() to schedule a pending exception.
This helper is added to properly set a pending exception, to mirror
mp_sched_schedule(), which schedules a function.

Signed-off-by: Damien George <damien@micropython.org>
2021-04-30 15:13:43 +10:00
Damien George
d4b706c4d0 py: Add option to compile without any error messages at all.
This introduces a new option, MICROPY_ERROR_REPORTING_NONE, which
completely disables all error messages.  To be used in cases where
MicroPython needs to fit in very limited systems.

Signed-off-by: Damien George <damien@micropython.org>
2021-04-27 23:51:52 +10:00
Damien George
321d1897c3 all: Bump version to 1.15.
Signed-off-by: Damien George <damien@micropython.org>
2021-04-19 00:11:51 +10:00
matejcik
1a2ffda175 py/runtime: Make sys.modules preallocate to a configurable size.
This allows configuring the pre-allocated size of sys.modules dict, in
order to prevent unwanted reallocations at run-time (3 sys-modules is
really not quite enough for a larger project).
2021-04-12 22:36:16 +10:00
Damien George
c891190c69 py: Rename WORD_MSBIT_HIGH to MP_OBJ_WORD_MSBIT_HIGH.
To make it clear it is for mp_obj_t/mp_uint_t "word" types, and to prefix
this macro with MP_.

Signed-off-by: Damien George <damien@micropython.org>
2021-02-04 22:46:42 +11:00
Damien George
ad4656b861 all: Rename BYTES_PER_WORD to MP_BYTES_PER_OBJ_WORD.
The "word" referred to by BYTES_PER_WORD is actually the size of mp_obj_t
which is not always the same as the size of a pointer on the target
architecture.  So rename this config value to better reflect what it
measures, and also prefix it with MP_.

For uses of BYTES_PER_WORD in setting the stack limit this has been
changed to sizeof(void *), because the stack usually grows with
machine-word sized values (eg an nlr_buf_t has many machine words in it).

Signed-off-by: Damien George <damien@micropython.org>
2021-02-04 22:46:42 +11:00
Damien George
7e956fae28 py: Rename BITS_PER_BYTE to MP_BITS_PER_BYTE.
To give this macro a standard MP_ prefix.

Signed-off-by: Damien George <damien@micropython.org>
2021-02-04 22:46:42 +11:00
Damien George
8a41ee19c2 py: Remove BITS_PER_WORD definition.
It's only used in one location, to test if << or >> will overflow when
shifting mp_uint_t.  For such a test it's clearer to use sizeof(lhs_val),
which will be valid even if the type of lhs_val changes.

Signed-off-by: Damien George <damien@micropython.org>
2021-02-04 22:46:42 +11:00
Damien George
78b23c3a1f all: Bump version to 1.14.
Signed-off-by: Damien George <damien@micropython.org>
2021-02-03 00:59:07 +11:00
David CARLIER
cb30928ac8 py/persistentcode: Introduce MICROPY_PERSISTENT_CODE_SAVE_FILE option.
This should be enabled when the mp_raw_code_save_file function is needed.

It is enabled for mpy-cross, and a check for defined(__APPLE__) is added to
cover Mac M1 systems.
2021-01-30 15:13:24 +11:00
graham sanderson
40d2010882 py/asmthumb: Add support for ARMv6M in native emitter.
Adds a new compile-time option MICROPY_EMIT_THUMB_ARMV7M which is enabled
by default (to get existing behaviour) and which should be disabled (set to
0) when building native emitter support (@micropython.native) on ARMv6M
targets.
2021-01-29 23:57:10 +11:00
Emil Renner Berthing
ccd92335a1 py, extmod: Introduce and use MP_FALLTHROUGH macro.
Newer GCC versions are able to warn about switch cases that fall
through.  This is usually a sign of a forgotten break statement, but in
the few cases where a fall through is intended we annotate it with this
macro to avoid the warning.
2020-10-22 11:53:16 +02:00
Damien George
843dcd4f85 py/parse: Expose rule-name printing as MICROPY_DEBUG_PARSE_RULE_NAME.
So it can be enabled without modifying the source.

Signed-off-by: Damien George <damien@micropython.org>
2020-10-01 15:26:43 +10:00
stijn
2e54d9d146 py: Fix handling of NaN in certain pow implementations.
Adds a new compile-time option MICROPY_PY_MATH_POW_FIX_NAN for use with
toolchains that don't handle pow-of-NaN correctly.
2020-09-11 10:04:57 +10:00
Damien George
b0932fcf2e all: Bump version to 1.13.
Signed-off-by: Damien George <damien@micropython.org>
2020-09-02 12:01:26 +10:00
Damien George
9883d8e818 py/persistentcode: Maintain root ptr list of imported native .mpy code.
On ports where normal heap memory can contain executable code (eg ARM-based
ports such as stm32), native code loaded from an .mpy file may be reclaimed
by the GC because there's no reference to the very start of the native
machine code block that is reachable from root pointers (only pointers to
internal parts of the machine code block are reachable, but that doesn't
help the GC find the memory).

This commit fixes this issue by maintaining an explicit list of root
pointers pointing to native code that is loaded from an .mpy file.  This
is not needed for all ports so is selectable by the new configuration
option MICROPY_PERSISTENT_CODE_TRACK_RELOC_CODE.  It's enabled by default
if a port does not specify any special functions to allocate or commit
executable memory.

A test is included to test that native code loaded from an .mpy file does
not get reclaimed by the GC.

Fixes #6045.

Signed-off-by: Damien George <damien@micropython.org>
2020-08-02 22:34:09 +10:00
Damien George
1783950311 py/compile: Implement PEP 572, assignment expressions with := operator.
The syntax matches CPython and the semantics are equivalent except that,
unlike CPython, MicroPython allows using := to assign to comprehension
iteration variables, because disallowing this would take a lot of code to
check for it.

The new compile-time option MICROPY_PY_ASSIGN_EXPR selects this feature and
is enabled by default, following MICROPY_PY_ASYNC_AWAIT.
2020-06-16 22:02:24 +10:00
stijn
81db22f693 py/modmath: Work around msvc float bugs in atan2, fmod and modf.
Older implementations deal with infinity/negative zero incorrectly.  This
commit adds generic fixes that can be enabled by any port that needs them,
along with new tests cases.
2020-05-28 09:54:54 +10:00
Damien George
544c308c18 py/scheduler: Add option to wrap mp_sched_schedule in arbitrary attr.
So ports can put it in a special memory section if needed.
2020-04-30 23:47:11 +10:00
stijn
84fa3312cf all: Format code to add space after C++-style comment start.
Note: the uncrustify configuration is explicitly set to 'add' instead of
'force' in order not to alter the comments which use extra spaces after //
as a means of indenting text for clarity.
2020-04-23 11:24:25 +10:00
Damien George
e292296d52 py/objexcept: Remove optional TimeoutError exception.
TimeoutError was added back in 077812b2ab for
the cc3200 port. In f522849a4d the cc3200
port enabled use of it in the socket module aliased to socket.timeout.  So
it was never added to the builtins.  Then it was replaced by
OSError(ETIMEDOUT) in 047af9b10b.

The esp32 port enables this exception, since the very beginning of that
port, but it could never be accessed because it's not in builtins.

It's being removed: 1) to not encourage its use; 2) because there are a lot
of other OSError subclasses which are not defined at all, and having
TimeoutError is a bit inconsistent.

Note that ports can add anything to the builtins via MICROPY_PORT_BUILTINS.
And they can also define their own exceptions using the
MP_DEFINE_EXCEPTION() macro.
2020-04-09 16:09:38 +10:00
Damien George
bc009fdd62 extmod/uasyncio: Add optional implementation of core uasyncio in C.
Implements Task and TaskQueue classes in C, using a pairing-heap data
structure.  Using this reduces RAM use of each Task, and improves overall
performance of the uasyncio scheduler.
2020-03-26 01:25:45 +11:00
Damien George
f8fc78691d py/mpconfig.h: Enable MICROPY_MODULE_GETATTR by default.
To enable lazy loading of submodules (among other things), which is very
useful for MicroPython libraries that want to have optional subcomponents.

Disabled explicitly on minimal ports.
2020-03-26 01:21:04 +11:00
Damien George
feb2577585 all: Remove spaces between nested paren and inside function arg paren.
Using new options enabled in the uncrustify configuration.
2020-03-25 00:39:46 +11:00
Andrew Leech
86bfabec11 py/modmicropython: Add heap_locked function to test state of heap.
This commit adds micropython.heap_locked() which returns the current
lock-depth of the heap, and can be used by Python code to check if the heap
is locked or not.  This new function is configured via
MICROPY_PY_MICROPYTHON_HEAP_LOCKED and is disabled by default.

This commit also changes the return value of micropython.heap_unlock() so
it returns the current lock-depth as well.
2020-03-11 16:54:16 +11:00
Damien George
69661f3343 all: Reformat C and Python source code with tools/codeformat.py.
This is run with uncrustify 0.70.1, and black 19.10b0.
2020-02-28 10:33:03 +11:00
Damien George
8fb5c8fdd5 py/scheduler: Allow a port to specify attrs for mp_keyboard_interrupt.
Functions like mp_keyboard_interrupt() may need to be called from an IRQ
handler and may need to be in a special memory section, so provide a
generic wrapping macro for a port to do this.  The macro name is chosen to
be MICROPY_WRAP_<function name in uppercase> so that (in the future with
more wrappers) each function could potentially be handled separately.
2020-02-07 16:08:29 +11:00
Yonatan Goldschmidt
1c849d63a8 py/mpconfig.h: Define BITS_PER_BYTE only if not already defined.
It's a common macro that is possibly defined in headers of systems/SDKs
MicroPython is embedded into.
2020-01-12 20:57:01 +02:00
Damien George
d96cfd13e3 py/obj: Add MICROPY_OBJ_IMMEDIATE_OBJS option to reduce code size.
This option (enabled by default for object representation A, B, C) makes
None/False/True objects immediate objects, ie they are no longer a concrete
object in ROM but are rather just values, eg None=0x6 for representation A.

Doing this saves a considerable amount of code size, due to these objects
being widely used:

   bare-arm:  -392 -0.591%
minimal x86:  -252 -0.170% [incl +52(data)]
   unix x64:  -624 -0.125% [incl -128(data)]
unix nanbox:    +0 +0.000%
      stm32: -1940 -0.510% PYBV10
     cc3200: -1216 -0.659%
    esp8266:  -404 -0.062% GENERIC
      esp32:  -732 -0.064% GENERIC[incl +48(data)]
        nrf:  -988 -0.675% pca10040
       samd:  -564 -0.556% ADAFRUIT_ITSYBITSY_M4_EXPRESS

Thanks go to @Jongy aka Yonatan Goldschmidt for the idea.
2020-01-13 01:01:45 +11:00
Damien George
6f0c83f6e1 py/obj.h: Redefine qstr object encoding to add immediate obj encoding.
This commit adjusts the definition of qstr encoding in all object
representations by taking a single bit from the qstr space and using it to
distinguish between qstrs and a new kind of literal object: immediate
objects.  In other words, the qstr space is divided in two pieces, one half
for qstrs and the other half for immediate objects.

There is still enough room for qstr values (29 bits in representation A on
a 32-bit architecture, and 19 bits in representation C) and the new
immediate objects can be used for things like None, False and True.
2020-01-13 01:01:45 +11:00
Yonatan Goldschmidt
853aaa06f2 lib/mp-readline: Add word-based move/delete EMACS key sequences.
This commit adds backward-word, backward-kill-word, forward-word,
forward-kill-word sequences for the REPL, with bindings to Alt+F, Alt+B,
Alt+D and Alt+Backspace respectively.  It is disabled by default and can be
enabled via MICROPY_REPL_EMACS_WORDS_MOVE.

Further enabling MICROPY_REPL_EMACS_EXTRA_WORDS_MOVE adds extra bindings
for these new sequences: Ctrl+Right, Ctrl+Left and Ctrl+W.

The features are enabled on unix micropython-coverage and micropython-dev.
2020-01-12 13:09:27 +11:00
Nicko van Someren
4c93955b7b py/objslice: Add support for indices() method on slice objects.
Instances of the slice class are passed to __getitem__() on objects when
the user indexes them with a slice.  In practice the majority of the time
(other than passing it on untouched) is to work out what the slice means in
the context of an array dimension of a particular length.  Since Python 2.3
there has been a method on the slice class, indices(), that takes a
dimension length and returns the real start, stop and step, accounting for
missing or negative values in the slice spec.  This commit implements such
a indices() method on the slice class.

It is configurable at compile-time via MICROPY_PY_BUILTINS_SLICE_INDICES,
disabled by default, enabled on unix, stm32 and esp32 ports.

This commit also adds new tests for slice indices and for slicing unicode
strings.
2019-12-28 23:55:15 +11:00
Yonatan Goldschmidt
61d2b40ad5 lib/utils/pyexec: Introduce MICROPY_REPL_INFO, wrap debug prints in it.
For the 3 ports that already make use of this feature (stm32, nrf and
teensy) this doesn't make any difference, it just allows to disable it from
now on.

For other ports that use pyexec, this decreases code size because the debug
printing code is dead (it can't be enabled) but the compiler can't deduce
that, so code is still emitted.
2019-12-28 00:05:39 +11:00
Damien George
1f37194730 all: Bump version to 1.12. 2019-12-20 16:58:17 +11:00
Damien George
d2384efa80 py: Automatically provide weak links from "foo" to "ufoo" module name.
This commit implements automatic module weak links for all built-in
modules, by searching for "ufoo" in the built-in module list if "foo"
cannot be found.  This means that all modules named "ufoo" are always
available as "foo".  Also, a port can no longer add any other weak links,
which makes strict the definition of a weak link.

It saves some code size (about 100-200 bytes) on ports that previously had
lots of weak links.

Some changes from the previous behaviour:
- It doesn't intern the non-u module names (eg "foo" is not interned),
  which saves code size, but will mean that "import foo" creates a new qstr
  (namely "foo") in RAM (unless the importing module is frozen).
- help('modules') no longer lists non-u module names, only the u-variants;
  this reduces duplication in the help listing.

Weak links are effectively the same as having a set of symbolic links on
the filesystem that is searched last.  So an "import foo" will search
built-in modules first, then all paths in sys.path, then weak links last,
importing "ufoo" if it exists.  Thus a file called "foo.py" somewhere in
sys.path will still have precedence over the weak link of "foo" to "ufoo".

See issues: #1740, #4449, #5229, #5241.
2019-10-22 15:30:52 +11:00
Damien George
9adedce42e py: Add new Xtensa-Windowed arch for native emitter.
Enabled via the configuration MICROPY_EMIT_XTENSAWIN.
2019-10-05 13:44:53 +10:00
Milan Rossa
310b3d1b81 py: Integrate sys.settrace feature into the VM and runtime.
This commit adds support for sys.settrace, allowing to install Python
handlers to trace execution of Python code.  The interface follows CPython
as closely as possible.  The feature is disabled by default and can be
enabled via MICROPY_PY_SYS_SETTRACE.
2019-08-30 16:44:12 +10:00
Damien George
7d851a27f1 extmod/modure: Make regex dump-code debugging feature optional.
Enabled via MICROPY_PY_URE_DEBUG, disabled by default (but enabled on unix
coverage build).  This is a rarely used feature that costs a lot of code
(500-800 bytes flash).  Debugging of regular expressions can be done
offline with other tools.
2019-08-19 16:43:00 +10:00
Damien George
0c80cb39af py: Introduce MP_UNREACHABLE macro to annotate unreachable code.
And use it to replace the same pattern at the end of nlrthumb.c:nlr_jump.
2019-08-19 16:14:33 +10:00
stijn
af5c998f37 py/modmath: Implement math.isclose() for non-complex numbers.
As per PEP 485, this function appeared in for Python 3.5.  Configured via
MICROPY_PY_MATH_ISCLOSE which is disabled by default, but enabled for the
ports which already have MICROPY_PY_MATH_SPECIAL_FUNCTIONS enabled.
2019-08-17 23:23:17 +10:00
Milan Rossa
cb3647004f py: Implement new sys.atexit feature.
This patch implements a new sys.atexit function which registers a function
that is later executed when the main script ends.  It is configurable via
MICROPY_PY_SYS_ATEXIT, disabled by default.

This is not compliant with CPython, rather it can be used to implement a
CPython compatible "atexit" module if desired (similar to how
sys.print_exception can be used to implement functionality of the
"traceback" module).
2019-08-15 17:30:50 +10:00
Jun Wu
b152bbddd1 py: Define EMIT_MACHINE_CODE as EMIT_NATIVE || EMIT_INLINE_ASM.
The combination MICROPY_EMIT_NATIVE || MICROPY_EMIT_INLINE_ASM is used in
many places, so define a new macro for it.
2019-06-28 13:54:45 +10:00
Damien George
a4f1d82757 py/nativeglue: Remove dependency on mp_fun_table in dyn-compiler mode.
mpy-cross uses MICROPY_DYNAMIC_COMPILER and MICROPY_EMIT_NATIVE but does
not actually need to execute native functions, and does not need
mp_fun_table.  This commit makes it so mp_fun_table and all its entries are
not built when MICROPY_DYNAMIC_COMPILER is enabled, significantly reducing
the size of the mpy-cross executable and allowing it to be built on more
machines/OS's.
2019-05-29 21:17:29 +10:00
Damien George
6f75c4f3cd all: Bump version to 1.11. 2019-05-29 16:38:10 +10:00
stijn
90fae9172a py/objarray: Add support for memoryview.itemsize attribute.
This allows figuring out the number of bytes in the memoryview object as
len(memview) * memview.itemsize.

The feature is enabled via MICROPY_PY_BUILTINS_MEMORYVIEW_ITEMSIZE and is
disabled by default.
2019-05-14 17:15:17 +10:00
Yonatan Goldschmidt
ef9843653b extmod/moducryptolib: Add AES-CTR support.
Selectable at compile time via MICROPY_PY_UCRYPTOLIB_CTR.  Disabled by
default.
2019-05-06 18:09:48 +10:00
Damien George
02cc288edb py: Add independent config for debugging sentinel object values.
The new compile-time option is MICROPY_DEBUG_MP_OBJ_SENTINELS, disabled by
default.  This is to allow finer control of whether this debugging feature
is enabled or not (because, for example, this setting must be the same for
mpy-cross and the MicroPython main code when using native code generation).
2019-03-08 15:53:04 +11:00
Damien George
0779693c23 py/compile: Add optimisation to compile OrderedDict inplace.
This optimisation eliminates the need to create a temporary normal dict.
The optimisation is enabled via MICROPY_COMP_CONST_LITERAL which is enabled
by default (although only has an effect if OrderdDict is enabled).

Thanks to @pfalcon for the initial idea and implementation.
2019-03-01 15:22:46 +11:00