Commit Graph

2100 Commits

Author SHA1 Message Date
Damien George 1786dacc83 tests/run-tests.py: Allow running tests via mpy-cross on remote targets.
This adds support for the `--via-mpy` and `--emit native` options when
running tests on remote targets (via pyboard.py).  It's now possible to do:

    $ ./run-tests.py --target pyboard --via-mpy
    $ ./run-tests.py --target pyboard --via-mpy --emit native

Signed-off-by: Damien George <damien@micropython.org>
2022-05-19 17:31:56 +10:00
Damien George 079f3e5e5b py/parse: Allow all constant objects to be used in "X = const(o)".
Now that constant tuples are supported in the parser, eg (1, True, "str"),
it's a small step to allow anything that is a constant to be used with the
pattern:

    from micropython import const

    X = const(obj)

This commit makes the required changes to allow the following types of
constants:

    from micropython import const

    _INT = const(123)
    _FLOAT = const(1.2)
    _COMPLEX = const(3.4j)
    _STR = const("str")
    _BYTES = const(b"bytes")
    _TUPLE = const((_INT, _STR, _BYTES))
    _TUPLE2 = const((None, False, True, ..., (), _TUPLE))

Prior to this, only integers could be used in const(...).

Signed-off-by: Damien George <damien@micropython.org>
2022-05-18 16:18:35 +10:00
Damien George 761d2f6741 tests/micropython: Add more test cases for native generators.
Signed-off-by: Damien George <damien@micropython.org>
2022-05-18 15:23:11 +10:00
Damien George 80938839c1 tests/extmod: Use bytearray instead of bytes for uctypes test.
Because the test modifies the (now) bytearray object, and if it's a bytes
object it's not guaranteed that it can be modified, or that this constant
object isn't used elsewhere.

Signed-off-by: Damien George <damien@micropython.org>
2022-05-18 15:23:11 +10:00
Damien George b3d0f5f67c tests/micropython: Fully unlink nested list in extreme exc test.
To make sure there are no dangling references to the lists, and the GC can
reclaim heap memory.

Signed-off-by: Damien George <damien@micropython.org>
2022-05-18 09:16:33 +10:00
Damien George 90682f43af py/compile: Allow new qstrs to be allocated at all compiler passes.
Prior to this commit, all qstrs were required to be allocated (by calling
mp_emit_common_use_qstr) in the MP_PASS_SCOPE pass (the first one).  But
this is an unnecessary restriction, which is lifted by this commit.
Lifting the restriction simplifies the compiler because it can allocate
qstrs in later passes.

This also generates better code, because in some cases (eg when a variable
is closed over) the scope of an identifier is not known until a bit later
and then the identifier no longer needs its qstr allocated in the global
table.

Code size is reduced for all ports with this commit.

Signed-off-by: Damien George <damien@micropython.org>
2022-05-17 23:39:22 +10:00
Damien George acfc3bbdf8 tests/multi_net: Skip SSL test if relevant modules aren't available.
Signed-off-by: Damien George <damien@micropython.org>
2022-05-17 14:25:51 +10:00
Damien George ab0a8f3086 tests/run-tests.py: Exclude settrace tests when using native emitter.
Signed-off-by: Damien George <damien@micropython.org>
2022-05-17 14:25:51 +10:00
Damien George 5f650b7b7a tests/thread: Use less resources for stress_aes if settrace enabled.
Signed-off-by: Damien George <damien@micropython.org>
2022-05-17 14:25:51 +10:00
Damien George 6f68a8c240 tests/run-perfbench.py: Return error code if any test fails on target.
Signed-off-by: Damien George <damien@micropython.org>
2022-05-17 14:06:41 +10:00
Damien George d7cf8a3b9d tests/perf_bench: Update .mpy file header to remove old unicode flag.
Signed-off-by: Damien George <damien@micropython.org>
2022-05-17 14:06:41 +10:00
Damien George c49d5207e9 py/persistentcode: Remove unicode feature flag from .mpy file.
Prior to this commit, even with unicode disabled .py and .mpy files could
contain unicode characters, eg by entering them directly in a string as
utf-8 encoded.

The only thing the compiler disallowed (with unicode disabled) was using
\uxxxx and \Uxxxxxxxx notation to specify a character within a string with
value >= 0x100; that would give a SyntaxError.

With this change mpy-cross will now accept \u and \U notation to insert a
character with value >= 0x100 into a string (because the -mno-unicode
option is now gone, there's no way to forbid this).  The runtime will
happily work with strings with such characters, just like it already works
with strings with characters that were utf-8 encoded directly.

This change simplifies things because there are no longer any feature
flags in .mpy files, and any bytecode .mpy will now run on any target.

Signed-off-by: Damien George <damien@micropython.org>
2022-05-17 12:51:54 +10:00
Damien George 8aa254c369 tests: Fix tests to use sys.implementation._mpy.
The field was renamed to _mpy in 59c5d41611

Signed-off-by: Damien George <damien@micropython.org>
2022-05-17 09:46:40 +10:00
Damien George fca5701f74 py/malloc: Introduce m_tracked_calloc, m_tracked_free functions.
Enabled by MICROPY_TRACKED_ALLOC.

Signed-off-by: Damien George <damien@micropython.org>
2022-05-05 10:31:50 +10:00
Damien George c90f097519 tests/extmod: Increase timing on uasyncio tests to make more reliable.
Non-real-time systems like Windows, Linux and macOS do not have reliable
timing, so increase the sleep intervals to make these tests more likely to
pass.

Signed-off-by: Damien George <damien@micropython.org>
2022-05-03 22:53:12 +10:00
Damien George 590de399f0 py/emitcommon: Don't implicitly close class vars that are assigned to.
When in a class body or at the module level don't implicitly close over
variables that have been assigned to.

Fixes issue #8603.

Signed-off-by: Damien George <damien@micropython.org>
2022-05-03 16:38:43 +10:00
Takeo Takahashi 3717d599e2 tests/run-tests.py: Update for renesas-ra port.
Signed-off-by: Takeo Takahashi <takeo.takahashi.xv@renesas.com>
2022-04-29 12:29:08 +09:00
Takeo Takahashi 4753913253 tests/renesas-ra: Add tests for renesas-ra port.
Signed-off-by: Takeo Takahashi <takeo.takahashi.xv@renesas.com>
2022-04-29 12:29:07 +09:00
Damien George 6bec5c4da5 tests/cmdline: Add test for REPL auto-indent.
Signed-off-by: Damien George <damien@micropython.org>
2022-04-22 17:00:16 +10:00
Damien George 28e7e15c0a extmod/uasyncio: Fix bug with task ending just after gather is cancel'd.
This fixes a bug where the gather is cancelled externally and then one of
its sub-tasks (that the gather was waiting on) finishes right between the
cancellation being queued and being executed.

Signed-off-by: Damien George <damien@micropython.org>
2022-04-21 14:25:17 +10:00
Damien George 8631753ff4 tests/run-tests.py: Add timeout for running PC-based MicroPython test.
So the test suite runs to completion, even if the interpreter locks up.

Signed-off-by: Damien George <damien@micropython.org>
2022-04-21 14:25:17 +10:00
Damien George ef1c2cdab0 tests/extmod/uasyncio_gather: Make double-raise gather test reliable.
This double-raise test could fail when task[0] raises and stops the gather
before task[1] raises, then task[1] is left to raise later on and spoil the
test.

Signed-off-by: Damien George <damien@micropython.org>
2022-04-20 19:32:49 +10:00
Jon Bjarni Bjarnason 1ded8a2977 py/objtype: Convert result of user __contains__ method to bool.
Per https://docs.python.org/3/reference/expressions.html#membership-test-operations

    For user-defined classes which define the contains() method, x in y
    returns True if y.contains(x) returns a true value, and False
    otherwise.

Fixes issue #7884.
2022-04-20 15:44:46 +10:00
Damien George 865b61dac2 tests/micropython: Add tests that const tuples don't use the heap.
Signed-off-by: Damien George <damien@micropython.org>
2022-04-15 00:17:02 +10:00
Damien George 999abbb8b5 tests/perf_bench: Update import tests for changes to .mpy consts.
Signed-off-by: Damien George <damien@micropython.org>
2022-04-14 23:52:14 +10:00
Damien George 35c0cff92b py/parse: Add MICROPY_COMP_CONST_TUPLE option to build const tuples.
This commit adds support to the parser so that tuples which contain only
constant elements (bool, int, str, bytes, etc) are immediately converted to
a tuple object.  This makes it more efficient to use tuples containing
constant data because they no longer need to be created at runtime by the
bytecode (or native code).

Furthermore, with this improvement constant tuples that are part of frozen
code are now able to be stored fully in ROM (this will be implemented in
later commits).

Code size is increased by about 400 bytes on Cortex-M4 platforms.

See related issue #722.

Signed-off-by: Damien George <damien@micropython.org>
2022-04-14 23:52:12 +10:00
Damien George 24bc1f61f9 py/parse: Print const object value in mp_parse_node_print.
To give more information when printing the parse tree.

Signed-off-by: Damien George <damien@micropython.org>
2022-04-14 22:45:42 +10:00
Christian Zietz d6c59c9d72 tests/inlineasm: Add test for PUSH LR and POP PC. 2022-04-11 15:35:42 +10:00
Jon Bjarni Bjarnason 919f696ad2 extmod/modusocket: Implement optional socket.listen backlog argument.
This follows the CPython change: https://bugs.python.org/issue21455

Socket listen backlog defaults to 2 if not given, based on most bare metal
targets not having many resources for a large backlog.  On UNIX it defaults
to SOMAXCONN or 128, whichever is less.
2022-04-11 15:26:47 +10:00
Damien George 71344c15f4 tests/pyb: Update CAN tests to match revised CAN API.
Signed-off-by: Damien George <damien@micropython.org>
2022-04-02 22:46:31 +11:00
Damien George 1dbf393962 tests/basics/fun_callstardblstar: Add test for large arg allocation.
Signed-off-by: Damien George <damien@micropython.org>
2022-04-01 09:20:42 +11:00
Damien George bd556b6996 py: Fix compiling and decoding of *args at large arg positions.
There were two issues with the existing code:

1. "1 << i" is computed as a 32-bit number so would overflow when
   executed on 64-bit machines (when mp_uint_t is 64-bit).  This meant that
   *args beyond 32 positions would not be handled correctly.

2. star_args must fit as a positive small int so that it is encoded
   correctly in the emitted code.  MP_SMALL_INT_BITS is too big because it
   overflows a small int by 1 bit.  MP_SMALL_INT_BITS - 1 does not work
   because it produces a signed small int which is then sign extended when
   extracted (even by mp_obj_get_int_truncated), and this sign extension
   means that any position arg after *args is also treated as a star-arg.
   So the maximum bit position is MP_SMALL_INT_BITS - 2.  This means that
   MP_OBJ_SMALL_INT_VALUE() can be used instead of
   mp_obj_get_int_truncated() to get the value of star_args.

These issues are fixed by this commit, and a test added.

Signed-off-by: Damien George <damien@micropython.org>
2022-04-01 09:20:42 +11:00
David Lechner 47685180f0 tests/basics/fun_callstardblstar: Add coverage test.
This fixes code coverage for the case where a *arg without __len__ is
unpacked and uses exactly the amount of memory that was allocated for
kw args. This triggers the code branch where the memory for the kw args
gets reallocated since it was used already by the *arg unpacking.

Signed-off-by: David Lechner <david@pybricks.com>
2022-03-31 17:01:15 +11:00
David Lechner 783b1a868f py/runtime: Allow multiple *args in a function call.
This is a partial implementation of PEP 448 to allow unpacking multiple
star args in a function or method call.

This is implemented by changing the emitted bytecodes so that both
positional args and star args are stored as positional args.  A bitmap is
added to indicate if an argument at a given position is a positional
argument or a star arg.

In the generated code, this new bitmap takes the place of the old star arg.
It is stored as a small int, so this means only the first N arguments can
be star args where N is the number of bits in a small int.

The runtime is modified to interpret this new bytecode format while still
trying to perform as few memory reallocations as possible.

Signed-off-by: David Lechner <david@pybricks.com>
2022-03-31 16:59:30 +11:00
David Lechner 1e99d29f36 py/runtime: Allow multiple **args in a function call.
This is a partial implementation of PEP 448 to allow multiple ** unpackings
when calling a function or method.

The compiler is modified to encode the argument as a None: obj key-value
pair (similar to how regular keyword arguments are encoded as str: obj
pairs).  The extra object that was pushed on the stack to hold a single **
unpacking object is no longer used and is removed.

The runtime is modified to decode this new format.

Signed-off-by: David Lechner <david@pybricks.com>
2022-03-31 16:54:00 +11:00
Damien George 90aaf2dbef extmod/uasyncio: Fix gather cancelling and handling of exceptions.
The following fixes are made:
- cancelling a gather now cancels all sub-tasks of the gather (previously
  it would only cancel the first)
- if any sub-task of a gather raises an exception then the gather finishes
  (previously it would only finish if the first sub-task raised)

Fixes issues #5798, #7807, #7901.

Signed-off-by: Damien George <damien@micropython.org>
2022-03-30 16:07:44 +11:00
Damien George 3e70be8ee9 tests/extmod: Update I2S rate test to work on mimxrt.
Tested on Teensy 4.0.

Signed-off-by: Damien George <damien@micropython.org>
2022-03-30 14:14:57 +11:00
Damien George 7266285845 tests/extmod: Add test for machine.I2S data rate.
Signed-off-by: Damien George <damien@micropython.org>
2022-03-29 11:44:08 +11:00
Damien George acd2c5c834 py/emitbc: Add check for bytecode jump offset overflow.
Signed-off-by: Damien George <damien@micropython.org>
2022-03-28 15:41:51 +11:00
Damien George 538c3c0a55 py: Change jump opcodes to emit 1-byte jump offset when possible.
This commit introduces changes:

- All jump opcodes are changed to have variable length arguments, of either
  1 or 2 bytes (previously they were fixed at 2 bytes).  In most cases only
  1 byte is needed to encode the short jump offset, saving bytecode size.

- The bytecode emitter now selects 1 byte jump arguments when the jump
  offset is guaranteed to fit in 1 byte.  This is achieved by checking if
  the code size changed during the last pass and, if it did (if it shrank),
  then requesting that the compiler make another pass to get the correct
  offsets of the now-smaller code.  This can continue multiple times until
  the code stabilises.  The code can only ever shrink so this iteration is
  guaranteed to complete.  In most cases no extra passes are needed, the
  original 4 passes are enough to get it right by the 4th pass (because the
  2nd pass computes roughly the correct labels and the 3rd pass computes
  the correct size for the jump argument).

This change to the jump opcode encoding reduces .mpy files and RAM usage
(when bytecode is in RAM) by about 2% on average.

The performance of the VM is not impacted, at least within measurment of
the performance benchmark suite.

Code size is reduced for builds that include a decent amount of frozen
bytecode.  ARM Cortex-M builds without any frozen code increase by about
350 bytes.

Signed-off-by: Damien George <damien@micropython.org>
2022-03-28 15:41:38 +11:00
David Lechner e7a92c0e69 tests/cmdline/cmd_showbc: Fix spelling of sequence. 2022-03-25 12:11:17 +11:00
Damien George 63f0e700f4 extmod/modure: Set subject begin_line so ^ doesn't match interior.
Fixes issue #8402.

Signed-off-by: Damien George <damien@micropython.org>
2022-03-16 12:21:00 +11:00
Damien George 3c7cab4e98 py/parse: Put const bytes objects in parse tree as const object.
Instead of as an intermediate qstr, which may unnecessarily intern the data
of the bytes object.

Signed-off-by: Damien George <damien@micropython.org>
2022-03-16 00:41:10 +11:00
Damien George ac2293161e py/modsys: Add optional mutable attributes sys.ps1/ps2 and use them.
This allows customising the REPL prompt strings.

Signed-off-by: Damien George <damien@micropython.org>
2022-03-10 10:58:33 +11:00
Damien George cac939ddc3 py/modsys: Add optional sys.tracebacklimit attribute.
With behaviour as per CPython.

Signed-off-by: Damien George <damien@micropython.org>
2022-03-10 10:43:21 +11:00
Damien George d470c5a5ba tests/extmod/vfs_posix.py: Only test statvfs if it exists.
Signed-off-by: Damien George <damien@micropython.org>
2022-03-10 00:41:03 +11:00
Damien George 3440201e2e tests/micropython: Switch from set.pop to raise-0 to test exc strings.
To not rely on sets, which are an optional feature.

Signed-off-by: Damien George <damien@micropython.org>
2022-03-07 16:48:35 +11:00
Damien George 9a8ee6a5df tests/run-tests.py: Include test files ending in _set as set tests.
Signed-off-by: Damien George <damien@micropython.org>
2022-03-07 16:48:35 +11:00
Damien George 7cd166ff92 tests/basics: Add test for creating small-ints in nan-box builds.
Signed-off-by: Damien George <damien@micropython.org>
2022-03-07 15:25:11 +11:00
Damien George c4b8dae438 tests/unix: Add coverage test for freezing various objects.
Signed-off-by: Damien George <damien@micropython.org>
2022-02-28 19:02:58 +11:00
Damien George 414b59d39c qemu-arm: Add tests for freezing viper and asm_thumb code.
Signed-off-by: Damien George <damien@micropython.org>
2022-02-24 18:29:02 +11:00
Damien George 0a2895b099 tests/perf_bench: Skip bm_chaos test if random.randrange is unavailable.
Signed-off-by: Damien George <damien@micropython.org>
2022-02-24 18:29:02 +11:00
Damien George f2040bfc7e py: Rework bytecode and .mpy file format to be mostly static data.
Background: .mpy files are precompiled .py files, built using mpy-cross,
that contain compiled bytecode functions (and can also contain machine
code). The benefit of using an .mpy file over a .py file is that they are
faster to import and take less memory when importing.  They are also
smaller on disk.

But the real benefit of .mpy files comes when they are frozen into the
firmware.  This is done by loading the .mpy file during compilation of the
firmware and turning it into a set of big C data structures (the job of
mpy-tool.py), which are then compiled and downloaded into the ROM of a
device.  These C data structures can be executed in-place, ie directly from
ROM.  This makes importing even faster because there is very little to do,
and also means such frozen modules take up much less RAM (because their
bytecode stays in ROM).

The downside of frozen code is that it requires recompiling and reflashing
the entire firmware.  This can be a big barrier to entry, slows down
development time, and makes it harder to do OTA updates of frozen code
(because the whole firmware must be updated).

This commit attempts to solve this problem by providing a solution that
sits between loading .mpy files into RAM and freezing them into the
firmware.  The .mpy file format has been reworked so that it consists of
data and bytecode which is mostly static and ready to run in-place.  If
these new .mpy files are located in flash/ROM which is memory addressable,
the .mpy file can be executed (mostly) in-place.

With this approach there is still a small amount of unpacking and linking
of the .mpy file that needs to be done when it's imported, but it's still
much better than loading an .mpy from disk into RAM (although not as good
as freezing .mpy files into the firmware).

The main trick to make static .mpy files is to adjust the bytecode so any
qstrs that it references now go through a lookup table to convert from
local qstr number in the module to global qstr number in the firmware.
That means the bytecode does not need linking/rewriting of qstrs when it's
loaded.  Instead only a small qstr table needs to be built (and put in RAM)
at import time.  This means the bytecode itself is static/constant and can
be used directly if it's in addressable memory.  Also the qstr string data
in the .mpy file, and some constant object data, can be used directly.
Note that the qstr table is global to the module (ie not per function).

In more detail, in the VM what used to be (schematically):

    qst = DECODE_QSTR_VALUE;

is now (schematically):

    idx = DECODE_QSTR_INDEX;
    qst = qstr_table[idx];

That allows the bytecode to be fixed at compile time and not need
relinking/rewriting of the qstr values.  Only qstr_table needs to be linked
when the .mpy is loaded.

Incidentally, this helps to reduce the size of bytecode because what used
to be 2-byte qstr values in the bytecode are now (mostly) 1-byte indices.
If the module uses the same qstr more than two times then the bytecode is
smaller than before.

The following changes are measured for this commit compared to the
previous (the baseline):
- average 7%-9% reduction in size of .mpy files
- frozen code size is reduced by about 5%-7%
- importing .py files uses about 5% less RAM in total
- importing .mpy files uses about 4% less RAM in total
- importing .py and .mpy files takes about the same time as before

The qstr indirection in the bytecode has only a small impact on VM
performance.  For stm32 on PYBv1.0 the performance change of this commit
is:

diff of scores (higher is better)
N=100 M=100             baseline -> this-commit  diff      diff% (error%)
bm_chaos.py               371.07 ->  357.39 :  -13.68 =  -3.687% (+/-0.02%)
bm_fannkuch.py             78.72 ->   77.49 :   -1.23 =  -1.563% (+/-0.01%)
bm_fft.py                2591.73 -> 2539.28 :  -52.45 =  -2.024% (+/-0.00%)
bm_float.py              6034.93 -> 5908.30 : -126.63 =  -2.098% (+/-0.01%)
bm_hexiom.py               48.96 ->   47.93 :   -1.03 =  -2.104% (+/-0.00%)
bm_nqueens.py            4510.63 -> 4459.94 :  -50.69 =  -1.124% (+/-0.00%)
bm_pidigits.py            650.28 ->  644.96 :   -5.32 =  -0.818% (+/-0.23%)
core_import_mpy_multi.py  564.77 ->  581.49 :  +16.72 =  +2.960% (+/-0.01%)
core_import_mpy_single.py  68.67 ->   67.16 :   -1.51 =  -2.199% (+/-0.01%)
core_qstr.py               64.16 ->   64.12 :   -0.04 =  -0.062% (+/-0.00%)
core_yield_from.py        362.58 ->  354.50 :   -8.08 =  -2.228% (+/-0.00%)
misc_aes.py               429.69 ->  405.59 :  -24.10 =  -5.609% (+/-0.01%)
misc_mandel.py           3485.13 -> 3416.51 :  -68.62 =  -1.969% (+/-0.00%)
misc_pystone.py          2496.53 -> 2405.56 :  -90.97 =  -3.644% (+/-0.01%)
misc_raytrace.py          381.47 ->  374.01 :   -7.46 =  -1.956% (+/-0.01%)
viper_call0.py            576.73 ->  572.49 :   -4.24 =  -0.735% (+/-0.04%)
viper_call1a.py           550.37 ->  546.21 :   -4.16 =  -0.756% (+/-0.09%)
viper_call1b.py           438.23 ->  435.68 :   -2.55 =  -0.582% (+/-0.06%)
viper_call1c.py           442.84 ->  440.04 :   -2.80 =  -0.632% (+/-0.08%)
viper_call2a.py           536.31 ->  532.35 :   -3.96 =  -0.738% (+/-0.06%)
viper_call2b.py           382.34 ->  377.07 :   -5.27 =  -1.378% (+/-0.03%)

And for unix on x64:

diff of scores (higher is better)
N=2000 M=2000        baseline -> this-commit     diff      diff% (error%)
bm_chaos.py          13594.20 ->  13073.84 :  -520.36 =  -3.828% (+/-5.44%)
bm_fannkuch.py          60.63 ->     59.58 :    -1.05 =  -1.732% (+/-3.01%)
bm_fft.py           112009.15 -> 111603.32 :  -405.83 =  -0.362% (+/-4.03%)
bm_float.py         246202.55 -> 247923.81 : +1721.26 =  +0.699% (+/-2.79%)
bm_hexiom.py           615.65 ->    617.21 :    +1.56 =  +0.253% (+/-1.64%)
bm_nqueens.py       215807.95 -> 215600.96 :  -206.99 =  -0.096% (+/-3.52%)
bm_pidigits.py        8246.74 ->   8422.82 :  +176.08 =  +2.135% (+/-3.64%)
misc_aes.py          16133.00 ->  16452.74 :  +319.74 =  +1.982% (+/-1.50%)
misc_mandel.py      128146.69 -> 130796.43 : +2649.74 =  +2.068% (+/-3.18%)
misc_pystone.py      83811.49 ->  83124.85 :  -686.64 =  -0.819% (+/-1.03%)
misc_raytrace.py     21688.02 ->  21385.10 :  -302.92 =  -1.397% (+/-3.20%)

The code size change is (firmware with a lot of frozen code benefits the
most):

       bare-arm:  +396 +0.697%
    minimal x86: +1595 +0.979% [incl +32(data)]
       unix x64: +2408 +0.470% [incl +800(data)]
    unix nanbox: +1396 +0.309% [incl -96(data)]
          stm32: -1256 -0.318% PYBV10
         cc3200:  +288 +0.157%
        esp8266:  -260 -0.037% GENERIC
          esp32:  -216 -0.014% GENERIC[incl -1072(data)]
            nrf:  +116 +0.067% pca10040
            rp2:  -664 -0.135% PICO
           samd:  +844 +0.607% ADAFRUIT_ITSYBITSY_M4_EXPRESS

As part of this change the .mpy file format version is bumped to version 6.
And mpy-tool.py has been improved to provide a good visualisation of the
contents of .mpy files.

In summary: this commit changes the bytecode to use qstr indirection, and
reworks the .mpy file format to be simpler and allow .mpy files to be
executed in-place.  Performance is not impacted too much.  Eventually it
will be possible to store such .mpy files in a linear, read-only, memory-
mappable filesystem so they can be executed from flash/ROM.  This will
essentially be able to replace frozen code for most applications.

Signed-off-by: Damien George <damien@micropython.org>
2022-02-24 18:08:43 +11:00
stijn ff9c708507 tests/run-tests.py: Skip repl tests when running windows underneath.
Some versions of Python (for instance: the mingw-w64 version which can be
installed on MSYS2) do include a pty module and claim to be posix-like
(os.name == 'posix'), yet the select.select call used in run-tests.py hangs
forever.  To be on the safe side just exclude anything which might be
running on windows.
2022-02-18 15:14:47 +11:00
Damien George 2ea21abae0 tests/extmod/vfs_fat_finaliser.py: Make finalisation more robust.
Signed-off-by: Damien George <damien@micropython.org>
2022-02-12 09:45:32 +11:00
Damien George e8bc4a3a5b tests/run-perfbench.py: Use SKIP consistently, and increase print width.
A script will print "SKIP" if it wants to be skipped, so the test runner
must also use uppercase SKIP.

Signed-off-by: Damien George <damien@micropython.org>
2022-02-11 22:19:38 +11:00
Damien George a434705700 tests/perf_bench: Add perf test for yield-from execution.
Signed-off-by: Damien George <damien@micropython.org>
2022-02-11 13:42:00 +11:00
Damien George 75da124cf8 tests/perf_bench: Add perf tests for qstr interning and importing .mpy.
Signed-off-by: Damien George <damien@micropython.org>
2022-02-10 15:25:33 +11:00
Damien George b33fdbe535 tests/run-perfbench.py: Allow a test to SKIP, and to have a .exp file.
Signed-off-by: Damien George <damien@micropython.org>
2022-02-10 15:25:33 +11:00
iabdalkader 30a022548f tests/multi_net/udp_data.py: Make UDP test more reliable.
The current test depends on a specific number and order of packets to pass,
which can't be reproduced every run due to the unreliable UDP protocol.
This patch adds simple packets sequencing, retransmits with timeouts, and a
packet loss threshold, to make the test more tolerant to UDP protocol
packet drops and reordering.
2022-02-09 14:05:01 +11:00
Damien George ab2923dfa1 all: Update Python formatting to latest Black version 22.1.0.
Signed-off-by: Damien George <damien@micropython.org>
2022-02-02 16:49:55 +11:00
Christian Decker 2e3a2785cd extmod/modubinascii: Add newline keyword to b2a_base64 function.
This allows encoding things (eg a Basic-Auth header for a request) without
slicing the \n from the string, which allocates additional memory.

Co-authored-by: David Lechner <david@lechnology.com>
2022-01-23 10:18:01 +11:00
stijn dd6967202a py/modmath: Add math.tau, math.nan and math.inf constants.
Configurable by the new MICROPY_PY_MATH_CONSTANTS option.
2022-01-23 09:28:33 +11:00
iabdalkader 6e8f4eaa52 tests/multi_net/udp_data.py: Allow reusing port before bind. 2022-01-21 13:34:33 +11:00
iabdalkader e6ddda29ca tests/multi_net: Close accepted sockets when tests are done.
gc_sweep_all() cleans up sockets via the finaliser, but tests should
cleanly free resources they use.
2022-01-21 13:34:20 +11:00
Jeff Epler 037b2c72a1 py/objstr: Support '{:08}'.format("Jan") like Python 3.10.
The new test has an .exp file, because it is not compatible with Python 3.9
and lower.

See CPython version of the issue at https://bugs.python.org/issue27772

Signed-off-by: Jeff Epler <jepler@gmail.com>
2022-01-19 15:34:32 +11:00
Damien George 2c9dc5742a tests/multi_net: Add testing key/cert to SSL server/client test.
So that this tests works with mbedtls.

Signed-off-by: Damien George <damien@micropython.org>
2022-01-17 17:35:04 +11:00
Damien George c54717a78f tests/run-multitests.py: Set HOST_IP so tests work between PC and board.
Signed-off-by: Damien George <damien@micropython.org>
2022-01-17 17:35:04 +11:00
Damien George 5df1d8be6c tests/run-multitests.py: Ignore lld_pdu_get_tx_flush_nb msgs from IDF.
BLE still functions correctly even though these messages are sometimes
printed by the IDF.  Ignoring them allows the multi_bluetooth tests to pass
on an esp32 board.

Signed-off-by: Damien George <damien@micropython.org>
2022-01-17 14:23:24 +11:00
stijn 19d949a866 tests/extmod: Skip uselect_poll_udp when poll() is not available.
This is the same fix as applied in uselect_poll_basic.py.
2022-01-04 15:07:45 +11:00
Damien George aac5a97d08 ports: Move '.frozen' to second entry in sys.path.
In commit 86ce442607 the '.frozen' entry was
added at the start of sys.path, to allow control over when frozen modules
are searched during import, and retain existing behaviour whereby frozen
was searched before the filesystem.

But Python semantics of sys.path require sys.path[0] to be the directory of
the currently executing script, or ''.

This commit moves the '.frozen' entry to second place in sys.path, so
sys.path[0] retains its correct value (described above).

Signed-off-by: Damien George <damien@micropython.org>
2021-12-29 23:55:36 +11:00
Damien George c768704cfd tests/basics/int_big_cmp.py: Add more tests for big-int comparison.
To improve coverage of mpz_cmp and mpn_cmp.

Signed-off-by: Damien George <damien@micropython.org>
2021-12-21 18:00:11 +11:00
Damien George 2c139bbf4e py/mpz: Fix bugs with bitwise of -0 by ensuring all 0's are positive.
This commit makes sure that the value zero is always encoded in an mpz_t as
neg=0 and len=0 (previously it was just len=0).

This invariant is needed for some of the bitwise operations that operate on
negative numbers, because they cannot handle -0.  For example
(-((1<<100)-(1<<100)))|1 was being computed as -65535, instead of 1.

Fixes issue #8042.

Signed-off-by: Damien George <damien@micropython.org>
2021-12-21 18:00:05 +11:00
Jim Mussared cc23e99f32 py/modio: Remove io.resource_stream function.
This feature is not enabled on any port, it's not in CPython's io module,
and functionality is better suited to the micropython-lib implementation of
pkg_resources.
2021-12-17 23:53:44 +11:00
Jim Mussared 3770fab334 all: Update Python formatting to latest Black version 21.12b0.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-12-09 12:09:40 +11:00
Jim Mussared e99f7b6d25 tests/cpydiff: Clarify f-string diffs regarding concatenation.
Concatenation of any literals (including f-strings) should be avoided.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-11-25 22:09:59 +11:00
Damien George 11ed94797d py/lexer: Support nested [] and {} characters within f-string params.
Signed-off-by: Damien George <damien@micropython.org>
2021-11-25 21:50:58 +11:00
Damien George 78ab2eeda3 py/showbc: Print unary-op string when dumping bytecode.
Signed-off-by: Damien George <damien@micropython.org>
2021-11-19 17:05:40 +11:00
jc_.kim 19f09414a6 tests/micropython/const.py: Add comment about required config for test.
Expected result of const.py will be matched only when MICROPY_COMP_CONST is
enabled.  For easy understanding, added description at the first of the
test code.
2021-11-17 14:28:20 +11:00
Damien George 43d08688c3 extmod/uasyncio: Fix gather returning exceptions from a cancelled task.
Fixes issue #5882.
2021-11-17 14:11:31 +11:00
Mike Wadsten c3c2c37fbc tests/basics: Add tests for type-checking subclassed exc instances. 2021-10-21 12:42:48 +11:00
Jim Mussared b326edf68c all: Remove MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE.
This commit removes all parts of code associated with the existing
MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE optimisation option, including the
-mcache-lookup-bc option to mpy-cross.

This feature originally provided a significant performance boost for Unix,
but wasn't able to be enabled for MCU targets (due to frozen bytecode), and
added significant extra complexity to generating and distributing .mpy
files.

The equivalent performance gain is now provided by the combination of
MICROPY_OPT_LOAD_ATTR_FAST_PATH and MICROPY_OPT_MAP_LOOKUP_CACHE (which has
been enabled on the unix port in the previous commit).

It's hard to provide precise performance numbers, but tests have been run
on a wide variety of architectures (x86-64, ARM Cortex, Aarch64, RISC-V,
xtensa) and they all generally agree on the qualitative improvements seen
by the combination of MICROPY_OPT_LOAD_ATTR_FAST_PATH and
MICROPY_OPT_MAP_LOOKUP_CACHE.

For example, on a "quiet" Linux x64 environment (i3-5010U @ 2.10GHz) the
change from CACHE_MAP_LOOKUP_IN_BYTECODE, to LOAD_ATTR_FAST_PATH combined
with MAP_LOOKUP_CACHE is:

diff of scores (higher is better)
N=2000 M=2000       bccache -> attrmapcache      diff      diff% (error%)
bm_chaos.py        13742.56 ->   13905.67 :   +163.11 =  +1.187% (+/-3.75%)
bm_fannkuch.py        60.13 ->      61.34 :     +1.21 =  +2.012% (+/-2.11%)
bm_fft.py         113083.20 ->  114793.68 :  +1710.48 =  +1.513% (+/-1.57%)
bm_float.py       256552.80 ->  243908.29 : -12644.51 =  -4.929% (+/-1.90%)
bm_hexiom.py         521.93 ->     625.41 :   +103.48 = +19.826% (+/-0.40%)
bm_nqueens.py     197544.25 ->  217713.12 : +20168.87 = +10.210% (+/-3.01%)
bm_pidigits.py      8072.98 ->    8198.75 :   +125.77 =  +1.558% (+/-3.22%)
misc_aes.py        17283.45 ->   16480.52 :   -802.93 =  -4.646% (+/-0.82%)
misc_mandel.py     99083.99 ->  128939.84 : +29855.85 = +30.132% (+/-5.88%)
misc_pystone.py    83860.10 ->   82592.56 :  -1267.54 =  -1.511% (+/-2.27%)
misc_raytrace.py   21490.40 ->   22227.23 :   +736.83 =  +3.429% (+/-1.88%)

This shows that the new optimisations are at least as good as the existing
inline-bytecode-caching, and are sometimes much better (because the new
ones apply caching to a wider variety of map lookups).

The new optimisations can also benefit code generated by the native
emitter, because they apply to the runtime rather than the generated code.
The improvement for the native emitter when LOAD_ATTR_FAST_PATH and
MAP_LOOKUP_CACHE are enabled is (same Linux environment as above):

diff of scores (higher is better)
N=2000 M=2000        native -> nat-attrmapcache  diff      diff% (error%)
bm_chaos.py        14130.62 ->   15464.68 :  +1334.06 =  +9.441% (+/-7.11%)
bm_fannkuch.py        74.96 ->      76.16 :     +1.20 =  +1.601% (+/-1.80%)
bm_fft.py         166682.99 ->  168221.86 :  +1538.87 =  +0.923% (+/-4.20%)
bm_float.py       233415.23 ->  265524.90 : +32109.67 = +13.756% (+/-2.57%)
bm_hexiom.py         628.59 ->     734.17 :   +105.58 = +16.796% (+/-1.39%)
bm_nqueens.py     225418.44 ->  232926.45 :  +7508.01 =  +3.331% (+/-3.10%)
bm_pidigits.py      6322.00 ->    6379.52 :    +57.52 =  +0.910% (+/-5.62%)
misc_aes.py        20670.10 ->   27223.18 :  +6553.08 = +31.703% (+/-1.56%)
misc_mandel.py    138221.11 ->  152014.01 : +13792.90 =  +9.979% (+/-2.46%)
misc_pystone.py    85032.14 ->  105681.44 : +20649.30 = +24.284% (+/-2.25%)
misc_raytrace.py   19800.01 ->   23350.73 :  +3550.72 = +17.933% (+/-2.79%)

In summary, compared to MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE, the new
MICROPY_OPT_LOAD_ATTR_FAST_PATH and MICROPY_OPT_MAP_LOOKUP_CACHE options:
- are simpler;
- take less code size;
- are faster (generally);
- work with code generated by the native emitter;
- can be used on embedded targets with a small and constant RAM overhead;
- allow the same .mpy bytecode to run on all targets.

See #7680 for further discussion.  And see also #7653 for a discussion
about simplifying mpy-cross options.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-09-16 16:04:03 +10:00
Damien George 426785a19e py/emitnative: Ensure load_subscr does not clobber existing REG_RET.
Fixes issue #7782, and part of issue #6314.

Signed-off-by: Damien George <damien@micropython.org>
2021-09-13 22:30:24 +10:00
Damien George c0761d28fc tests/perf_bench: Use math.log instead of math.log2.
So MICROPY_PY_MATH_SPECIAL_FUNCTIONS is not needed for these performance
tests.

Signed-off-by: Damien George <damien@micropython.org>
2021-09-13 18:27:39 +10:00
Damien George 08ff71dfcd tests/pybnative: Make while.py test run on boards without pyb.delay.
Signed-off-by: Damien George <damien@micropython.org>
2021-09-01 00:43:41 +10:00
Damien George 8c4ba575fd tests/basics: Split f-string debug printing to separate file with .exp.
This feature {x=} was introduced in Python 3.8 so needs a separate .exp
file to run on earlier Python versions.

See https://bugs.python.org/issue36817

Signed-off-by: Damien George <damien@micropython.org>
2021-08-26 23:56:02 +10:00
Peter Hinch 2296df0a32 extmod/modframebuf: Enable blit between different formats via a palette.
This achieves a substantial performance improvement when rendering glyphs
to color displays, the benefit increasing proportional to the number of
pixels in the glyph.
2021-08-25 15:31:23 +10:00
Jim Mussared 91a99fcf0e tests/extmod/vfs_fat_finaliser.py: Ensure alloc at never-used GC blocks.
Prevents the finaliser from being missed if there's a dangling reference
on the stack to one of the blocks for the files (that this test checks
that they get finalised).

See github.com/micropython/micropython/pull/7659#issuecomment-899479793

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-08-17 11:20:58 +10:00
Jim Mussared c70930fb24 tests/multi_bluetooth/ble_subscribe.py: Add test for subscription.
This tests both sending indications/notifications from a server to
subscribed clients via gatts_write(...,send_update=True) and subscribing
from a client.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-08-14 22:44:47 +10:00
Jim Mussared 692d36d779 py: Implement partial PEP-498 (f-string) support.
This implements (most of) the PEP-498 spec for f-strings and is based on
https://github.com/micropython/micropython/pull/4998 by @klardotsh.

It is implemented in the lexer as a syntax translation to `str.format`:
  f"{a}" --> "{}".format(a)

It also supports:
  f"{a=}" --> "a={}".format(a)

This is done by extracting the arguments into a temporary vstr buffer,
then after the string has been tokenized, the lexer input queue is saved
and the contents of the temporary vstr buffer are injected into the lexer
instead.

There are four main limitations:
- raw f-strings (`fr` or `rf` prefixes) are not supported and will raise
  `SyntaxError: raw f-strings are not supported`.

- literal concatenation of f-strings with adjacent strings will fail
    "{}" f"{a}" --> "{}{}".format(a)    (str.format will incorrectly use
                                         the braces from the non-f-string)
    f"{a}" f"{a}" --> "{}".format(a) "{}".format(a) (cannot concatenate)

- PEP-498 requires the full parser to understand the interpolated
  argument, however because this entirely runs in the lexer it cannot
  resolve nested braces in expressions like
    f"{'}'}"

- The !r, !s, and !a conversions are not supported.

Includes tests and cpydiffs.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-08-14 16:58:40 +10:00
Damien George 8fcdb5490c extmod/modlwip: Fix close and clean up of UDP and raw sockets.
The correct callback-deregister functions must be called dependent on the
socket type, otherwise resources may not be freed correctly.

Signed-off-by: Damien George <damien@micropython.org>
2021-08-13 23:46:11 +10:00
Damien George 90d47ee34d tests/run-multitests.py: Add broadcast and wait facility.
Test instances can now use the following methods to synchronise their
execution:

    multitest.broadcast("sync message")
    multitest.wait("sync message")

Signed-off-by: Damien George <damien@micropython.org>
2021-08-13 23:26:34 +10:00
Peter Züger d290f369d0 tests/extmod/ujson: Add tests for dump/dumps separators argument.
Basically just copied ujson_dump(s).py and added various valid/invalid
separator tests.

Signed-off-by: Peter Züger <zueger.peter@icloud.com>
2021-08-07 13:52:16 +10:00
Jim Mussared 4e39ff221a py/runtime: Fix bool unary op for subclasses of native types.
Previously a subclass of a type that didn't implement unary_op, or didn't
handle MP_UNARY_OP_BOOL, would raise TypeError on bool conversion.

Fixes #5677.
2021-07-23 12:40:00 +10:00
Jim Mussared 0e3752e82a py/emitnative: Ensure stack settling is safe mid-branch.
And add a test for the case where REG_RET could be in use.

Fixes #7523.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-07-19 23:18:59 +10:00
David P f365025c9c stm32: Replace master/slave with controller/peripheral in I2C and SPI.
Replace "master" with "controller" and "slave" with "peripheral" in
comments, errors, and debug messages.

Add CONTROLLER and PERIPHERAL constants to pyb.SPI and pyb.I2C classes;
retain MASTER and SLAVE constants for backward compatiblity.
2021-07-18 11:23:41 +10:00
Damien George bb00125aaa py: Support single argument to optimised MP_OBJ_STOP_ITERATION.
The MP_OBJ_STOP_ITERATION optimisation is a shortcut for creating a
StopIteration() exception object, and means that heap memory does not need
to be allocated for the exception (in cases where it can be used).  This
commit allows this optimised object to take an optional argument (before,
it could only have no argument).

The commit also adds some new tests to cover corner cases with
StopIteration and generators that previously did not work.

Signed-off-by: Damien George <damien@micropython.org>
2021-07-15 00:12:41 +10:00
Damien George e3825e28e6 py/objexcept: Make mp_obj_exception_get_value support subclassed excs.
Signed-off-by: Damien George <damien@micropython.org>
2021-07-15 00:12:41 +10:00
David Lechner cd506d6220 tests/cpydiff/modules_struct_whitespace_in_format: Run black.
This test snuck through without proper formatting and is causing CI for
other unrelated changes to fail.

Signed-off-by: David Lechner <david@pybricks.com>
2021-07-06 18:19:55 -05:00
Tom McDermott c1f74b3005 docs/library: Warn that ustruct doesn't handle spaces in format strings.
And also add a test to capture the CPython difference.
2021-07-06 14:59:50 +10:00