Commit Graph

4096 Commits

Author SHA1 Message Date
Simon Arlott f8b0ae32d3 py/builtinimport: Fix crash handling "weak link" module names.
There are two calls to mp_builtin___import__():
1. ports/unix/main.c:main_() which provides a str in args[0]
2. py/runtime.c:mp_import_name() which provides a qstr in args[0]

The default implementation of mp_builtin___import__() is
mp_builtin___import___default() which has a different implementation based
on MICROPY_ENABLE_EXTERNAL_IMPORT.

If MICROPY_ENABLE_EXTERNAL_IMPORT is disabled then the handling of weak
links assumes that args[0] is a `const char *`, when it is either a str or
qstr object.

Use the existing qstr of the module name instead, and also use a vstr
instead of strcpy() to ensure no overflow occurs.
2022-11-08 23:03:21 +11:00
Damien George cd35b8a2a3 extmod/machine_timer: Move stm32's implementation of machine.Timer here.
So it can be reused by other ports.

Signed-off-by: Damien George <damien@micropython.org>
2022-10-27 14:32:43 +11:00
Damien George c138e10fbb py/makeversionhdr: Fall back to py/mpconfig.h instead of docs/conf.py.
Commit 64af916c11 removed the version string
from docs/conf.py.  py/mpconfig.h is a better place to get the version
from, so use that (when there is no git repository).

Signed-off-by: Damien George <damien@micropython.org>
2022-10-27 13:00:48 +11:00
Jim Mussared d75c7e822c py/obj: Add comments explaining the slot index scheme.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-10-26 00:08:41 +11:00
Jim Mussared 1ba0e8ff96 py/persistentcode: Only emit sub-version if generated code has native.
In order for v1.19.1 to load a .mpy, the formerly-feature-flags which are
now used for the sub-version must be zero.

The sub-version is only used to indicate a native version change, so it
should be zero when emitting bytecode-only .mpy files.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-10-25 14:57:04 +11:00
Jim Mussared b161abc574 py/obj: Verify floating point type is correct for repr C.
Prevents double-precision floats being enabled on 32-bit architectures
where they will not fit into the mp_obj_t encoding.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-10-25 14:46:04 +11:00
David Lechner ab317a0d66 py/misc: Remove use of bitfield from vstr_t.
Since there is only one flag, we don't need to use a bitfield in vstr_t.
Compilers emit extra instructions to access a bitfield, so this should
reduce the binary size a small amount.

Signed-off-by: David Lechner <david@pybricks.com>
2022-10-12 00:33:09 +11:00
Jim Mussared d6d8722558 extmod: Make extmod.mk self-contained.
This makes it so that all a port needs to do is set the relevant variables
and "include extmod.mk" and doesn't need to worry about adding anything to
OBJ, CFLAGS, SRC_QSTR, etc.

Make all extmod variables (src, flags, etc) private to extmod.mk.

Also move common/shared, extmod-related fragments (e.g. wiznet, cyw43,
bluetooth) into extmod.mk.

Now that SRC_MOD, CFLAGS_MOD, CXXFLAGS_MOD are unused by both extmod.mk
(and user-C-modules in a previous commit), remove all uses of them from
port makefiles.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-10-11 23:31:49 +11:00
Jim Mussared 3cc6decfc4 py/py.mk: Make user-C-module handling self-contained in py.mk.
Removes the need for the port to add anything to OBJS or SRC_QSTR.

Also makes it possible for user-C-modules to differentiate between code
that should be processed for QSTR vs other files (e.g. helpers and
libraries).

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-10-11 23:23:18 +11:00
Jim Mussared 0e8dfaf538 py/modsys: Add support for sys.executable.
Only intended to be used on Unix and other "OS" ports.  Matches CPython.
This should give the absolute path to the executing binary.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
Signed-off-by: Damien George <damien@micropython.org>
2022-10-11 18:10:26 +11:00
Jim Mussared c44b3927b8 py/objstr: Add a helper to set mp_obj_str_t data.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-10-11 17:50:19 +11:00
stijn fecfbc3f67 py/mkenv.mk: Make CPP definition explicit for consistency. 2022-09-29 14:17:37 +02:00
Matt Trentini 0bc1d10557 rp2/Makefile: Add support for BOARD_VARIANTS.
Following stm32.  This allows a single board definition to define variants
of its configuration.
2022-09-26 12:38:58 +10:00
Jim Mussared 9d6f474ea4 py/objstr: Don't treat bytes as unicode in str.count.
`b'\xaa \xaa'.count(b'\xaa')` now (correctly) returns 2 instead of 1.

Fixes issue #9404.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-26 00:54:18 +10:00
Angus Gratton 25ff5b52d9 py/parse: Allow const types other than int to optimise as true/false.
Allows optimisation of cases like:

    import micropython
    _DEBUG = micropython.const(False)
    if _DEBUG:
        print('Debugging info')

Previously the 'if' statement was only optimised out if the type of the
const() argument was integer.

The change is implemented in a way that makes the compiler slightly smaller
(-16 bytes on PYBV11) but compilation will also be very slightly slower.

As a bonus, if const support is enabled then the compiler can now optimise
const truthy/falsey expressions of other types, like:

    while "something":
        pass

... unclear if that is useful, but perhaps it could be.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2022-09-23 16:04:13 +10:00
Damien George fb77be1506 py: Include filename in errors from loading/saving files via "open".
This improves error messages in mpy-cross:
- When loading a .py file that doesn't exist (or can't be opened) it now
  includes the filename in the OSError.
- When saving a .mpy file that can't be opened it now raises an exception
  (prior, it would silently fail), and includes the filename in the
  OSError.

Signed-off-by: Damien George <damien@micropython.org>
2022-09-19 23:27:08 +10:00
Damien George cc588ac3a9 py/runtime: Add mp_raise_OSError_with_filename helper function.
Useful when more detail is needed for an OSError associated with a file.

Signed-off-by: Damien George <damien@micropython.org>
2022-09-19 23:25:26 +10:00
Jim Mussared 15d0615d5c py/objmodule: Add support for __dict__.
This matches class `__dict__`, and is similarly gated on
MICROPY_CPYTHON_COMPAT. Unlike class though, because modules's globals are
actually dict instances, the result is a mutable dictionary.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 23:22:46 +10:00
Jim Mussared d94141e147 py/persistentcode: Introduce .mpy sub-version.
The intent is to allow us to make breaking changes to the native ABI (e.g.
changes to dynruntime.h) without needing the bytecode version to increment.

With this commit the two bits previously used for the feature flags (but
now unused as of .mpy version 6) encode a sub-version.  A bytecode-only
.mpy file can be loaded as long as MPY_VERSION matches, but a native .mpy
(i.e. one with an arch set) must also match MPY_SUB_VERSION.  This allows 3
additional updates to the native ABI per bytecode revision.

The sub-version is set to 1 because the previous commits that changed the
layout of mp_obj_type_t have changed the native ABI.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
Signed-off-by: Damien George <damien@micropython.org>
2022-09-19 23:19:55 +10:00
Jim Mussared b41aaaa8a9 py/obj: Optimise code size and performance for make_new as a slot.
The check for make_new (i.e. used to determine something's type) is now
more complicated due to the slot access.  This commit changes the inlining
of a few frequently-used helpers to overall improve code size and
performance.
2022-09-19 19:06:16 +10:00
Jim Mussared 94beeabd2e py/obj: Convert make_new into a mp_obj_type_t slot.
Instead of being an explicit field, it's now a slot like all the other
methods.

This is a marginal code size improvement because most types have a make_new
(100/138 on PYBV11), however it improves consistency in how types are
declared, removing the special case for make_new.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 19:06:15 +10:00
Jim Mussared 6da41b5900 py/obj: Merge getiter and iternext mp_obj_type_t slots.
The goal here is to remove a slot (making way to turn make_new into a slot)
as well as reduce code size by the ~40 references to mp_identity_getiter
and mp_stream_unbuffered_iter.

This introduces two new type flags:
- MP_TYPE_FLAG_ITER_IS_ITERNEXT: This means that the "iter" slot in the
  type is "iternext", and should use the identity getiter.
- MP_TYPE_FLAG_ITER_IS_CUSTOM: This means that the "iter" slot is a pointer
  to a mp_getiter_iternext_custom_t instance, which then defines both
  getiter and iternext.

And a third flag that is the OR of both, MP_TYPE_FLAG_ITER_IS_STREAM: This
means that the type should use the identity getiter, and
mp_stream_unbuffered_iter as iternext.

Finally, MP_TYPE_FLAG_ITER_IS_GETITER is defined as a no-op flag to give
the default case where "iter" is "getiter".

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 19:06:13 +10:00
Jim Mussared 3c6127dfcf py/objnamedtuple: Optimise slot RAM usage for namedtuple.
Rather than reserving a full 12-slot mp_obj_type_t, reserve enough room for
seven and cast as necessary.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 19:06:13 +10:00
Jim Mussared 165388e4eb py/objtype: Optimise slot RAM usage for instance types.
In all cases other than where you have a native base with a protocol, it
now fits into 4 GC blocks (like it did before the slots representation).

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 19:06:13 +10:00
Jim Mussared cb0ffdd2bf py/obj: Remove basic mp_obj_type_t sparse representation.
This makes the slots-based representation the only option.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 19:06:12 +10:00
Jim Mussared 3ac8b5851e py/obj: Add slot-index mp_obj_type_t representation.
The existings mp_obj_type_t uses a sparse representation for slots for the
capability methods of the type (eg print, make_new).  This commit adds a
compact slot-index representation.  The basic idea is that where the
mp_obj_type_t struct used to have 12 pointer fields, it now has 12 uint8_t
indices, and a variable-length array of pointers.  So in the best case (no
fields used) it saves 12x4-12=36 bytes (on a 32-bit machine) and in the
common case (three fields used) it saves 9x4-12=24 bytes.

Overall with all associated changes, this slot-index representation reduces
code size by 1000 to 3000 bytes on bare-metal ports.  Performance is
marginally better on a few tests (eg about 1% better on misc_pystone.py and
misc_raytrace.py on PYBv1.1), but overall marginally worse by a percent or
so.

See issue #7542 for further analysis and discussion.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 19:06:09 +10:00
Jim Mussared a52cd5b07d py/obj: Add accessors for type slots and use everywhere.
This is a no-op, but sets the stage for changing the mp_obj_type_t
representation.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 19:06:07 +10:00
Jim Mussared e8355eb163 py/obj: Add "full" and "empty" non-variable-length mp_obj_type_t.
This will always have the maximum/minimum size of a mp_obj_type_t
representation and can be used as a member in other structs.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 19:06:04 +10:00
Jim Mussared 5ddf671944 py/objexcept: Make MP_DEFINE_EXCEPTION use MP_DEFINE_CONST_OBJ_TYPE.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 19:06:01 +10:00
Jim Mussared 9dce82776d all: Remove unnecessary locals_dict cast.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 19:06:01 +10:00
Jim Mussared b7d6ee9b75 all: Fix #if inside MP_DEFINE_CONST_OBJ_TYPE for msvc.
Changes:

    MP_DEFINE_CONST_OBJ_TYPE(
       ...
       #if FOO
       ...
       #endif
       ...
    );

to:

    MP_DEFINE_CONST_OBJ_TYPE(
       ...
       FOO_TYPE_ATTR
       ...
    );

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 19:06:01 +10:00
Jim Mussared 662b9761b3 all: Make all mp_obj_type_t defs use MP_DEFINE_CONST_OBJ_TYPE.
In preparation for upcoming rework of mp_obj_type_t layout.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 19:06:01 +10:00
Jim Mussared cdb880789f py/obj: Add macro to declare ROM mp_obj_type_t instances.
This will allow the structure of mp_obj_type_t to change while keeping the
definition code the same.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 19:05:50 +10:00
Jim Mussared fb2a57800a all: Simplify buffer protocol to just a "get buffer" callback.
The buffer protocol type only has a single member, and this existing layout
creates problems for the upcoming split/slot-index mp_obj_type_t layout
optimisations.

If we need to make the buffer protocol more sophisticated in the future
either we can rely on the mp_obj_type_t optimisations to just add
additional slots to mp_obj_type_t or re-visit the buffer protocol then.

This change is a no-op in terms of generated code.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-19 18:40:39 +10:00
Jim Mussared 45972fa548 py/mkrules.mk: Add link to build troubleshooting on failure.
Also update the submodules help text to match.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-15 12:22:18 +10:00
Damien George 74805435f9 py/objpolyiter: Fix comment about finaliser method.
Signed-off-by: Damien George <damien@micropython.org>
2022-09-13 21:14:22 +10:00
Jim Mussared 3e5b1be8ca py/mpconfig: Add "everything" features from unix coverage.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-13 17:40:33 +10:00
Jim Mussared 605266ee9a py/mpconfig: Make feature levels available to mpconfigport.h.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-13 17:37:49 +10:00
Jim Mussared 89a0fefb6c py/mpconfig: Add LFS1/LFS2 options to match FAT/posix.
Also fixes the #ifndef for FAT & posix.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-13 17:37:32 +10:00
Andrew Leech 582b3e4e78 py/objpolyiter: Add a new polyiter type with finaliser support. 2022-09-13 13:00:25 +10:00
Andrew Leech d521899e18 py/persistentcode: Clarify ValueError when native emitter disabled. 2022-08-29 12:38:49 +10:00
Jim Mussared 6c3d8d38bf py/objstr: Always validate utf-8 for mp_obj_new_str.
All uses of this are either tiny strings or not-known-to-be-safe.

Update comments for mp_obj_new_str_copy and mp_obj_new_str_of_type.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-08-26 16:45:46 +10:00
Jim Mussared 3a910b1565 py/objstr: Optimise mp_obj_new_str_from_vstr for known-safe strings.
The new `mp_obj_new_str_from_utf8_vstr` can be used when you know you
already have a unicode-safe string.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-08-26 16:44:35 +10:00
Jim Mussared 88864587f5 py/objstr: Always ensure mp_obj_str_from_vstr is unicode-safe.
Now that we have `mp_obj_new_str_type_from_vstr` (private helper used by
objstr.c) split from the public API (`mp_obj_new_str_from_vstr`), we can
enforce a unicode check at the public API without incurring a performance
cost on the various objstr.c methods (which are already working on known
unicode-safe strings).

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-08-26 16:44:20 +10:00
Jim Mussared 8a0ee5a5c0 py/objstr: Split mp_obj_str_from_vstr into bytes/str versions.
Previously the desired output type was specified.  Now make the type part
of the function name.  Because this function is used in a few places this
saves code size due to smaller call-site.

This makes `mp_obj_new_str_type_from_vstr` a private function of objstr.c
(which is almost the only place where the output type isn't a compile-time
constant).

This saves ~140 bytes on PYBV11.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-08-26 16:43:55 +10:00
Laurens Valk d8ad87843a py/builtinimport: Allow overriding of mp_builtin___import__.
This allows ports to override mp_builtin___import__.

This can be useful in MicroPython applications where
MICROPY_ENABLE_EXTERNAL_IMPORT has to be disabled due to its impact on
build size (2% to 2.5% of the minimal port). By overriding the otherwise
very minimal mp_builtin___import__, ports can still allow limited forms
of application-specific imports.

Signed-off-by: Laurens Valk <laurens@pybricks.com>
2022-08-23 13:34:06 +10:00
Damien George 3d65101a8a py: Clean up formatting of union definitions.
Signed-off-by: Damien George <damien@micropython.org>
2022-08-23 13:09:57 +10:00
Jim Mussared af1f167820 py/dynruntime: Add mp_obj_is_true.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-08-19 23:31:11 +10:00
Damien George 8f4c108025 all: Remove MICROPY_PY_IO_FILEIO config option.
Since commit e65d1e69e8 there is no longer an
io.FileIO class, so this option is no longer needed.

This option also controlled whether or not files supported being opened in
binary mode (eg 'rb'), and could, if disabled, lead to confusion as to why
opening a file in binary mode silently did the wrong thing (it would just
open in text mode if MICROPY_PY_IO_FILEIO was disabled).

The various VFS implementations (POSIX, FAT, LFS) were the only places
where enabling this option made a difference, and in almost all cases where
one of these filesystems were enabled, MICROPY_PY_IO_FILEIO was also
enabled.  So it makes sense to just unconditionally enable this feature
(ability to open a file in binary mode) in all cases, and so just remove
this config option altogether.  That makes configuration simpler and means
binary file support always exists (and opening a file in binary mode is
arguably more fundamental than opening in text mode, so if anything should
be configurable then it should be the ability to open in text mode).

Signed-off-by: Damien George <damien@micropython.org>
2022-08-18 11:54:17 +10:00
Dan Ellis 6f4d424f46 py/formatfloat: Use pow(10, e) instead of pos/neg_pow lookup tables.
Rework the conversion of floats to decimal strings so it aligns precisely
with the conversion of strings to floats in parsenum.c.  This is to avoid
rendering 1eX as 9.99999eX-1 etc.  This is achieved by removing the power-
of-10 tables and using pow() to compute the exponent directly, and that's
done efficiently by first estimating the power-of-10 exponent from the
power-of-2 exponent in the floating-point representation.

Code size is reduced by roughly 100 to 200 bytes by this commit.

Signed-off-by: Dan Ellis <dan.ellis@gmail.com>
2022-08-12 23:53:34 +10:00