Commit Graph

54 Commits

Author SHA1 Message Date
Jim Mussared
5e50975a6d py/modsys: Allow sys.path to be assigned to.
Previously sys.path could be modified by append/pop or slice assignment.

This allows `sys.path = [...]`, which can be simpler in many cases, but
also improves CPython compatibility.

It also allows sys.path to be set to a tuple which means that you can
clear sys.path (e.g. temporarily) with no allocations.

This also makes sys.path (and sys.argv for consistency) able to be disabled
via mpconfig. The unix port (and upytesthelper) require them, so they
explicitly verify that they're enabled.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2023-06-08 17:54:24 +10:00
Jim Mussared
0ceccd4cf8 all: Rename *umodule*.h to remove the "u" prefix.
This work was funded through GitHub Sponsors.

Also updates #includes.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2023-06-08 17:54:14 +10:00
Jim Mussared
1bf2dcb15e all: Rename mp_umodule*, mp_module_umodule* to remove the "u" prefix.
This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2023-06-08 17:54:04 +10:00
Jim Mussared
952a78f88a unix/main: Add NLR scope for checking module __path__.
If the module has a user-defined getattr, this could raise.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2023-06-01 16:21:37 +10:00
Jim Mussared
525557738c py/builtinimport: Optimise sub-package loading.
This makes it so that sub-packages are resolved relative to their parent's
`__path__`, rather than re-resolving each parent's filesystem path.

The previous behavior was that `import foo.bar` would first re-search
`sys.path` for `foo`, then use the resulting path to find `bar`.

For already-loaded and u-prefixed modules, because we no longer need to
build the path from level to level, we no longer unnecessarily search
the filesystem. This should improve startup time.

Explicitly makes the resolving process clear:
 - Loaded modules are returned immediately without touching the filesystem.
 - Exact-match of builtins are also returned immediately.
 - Then the filesystem search happens.
 - If that fails, then the weak-link handling is applied.

This maintains the existing behavior: if a user writes `import time` they
will get time.py if it exits, otherwise the built-in utime. Whereas `import
utime` will always return the built-in.

This also fixes a regression from a7fa18c203
where we search the filesystem for built-ins. It is now only possible to
override u-prefixed builtins. This will remove a lot of filesystem stats
at startup, as micropython-specific modules (e.g. `pyb`) will no longer
attempt to look at the filesystem.

Added several improvements to the comments and some minor renaming and
refactoring to make it clearer how the import mechanism works. Overall
code size diff is +56 bytes on STM32.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2023-06-01 16:21:21 +10:00
Damien George
b1229efbd1 all: Fix spelling mistakes based on codespell check.
Signed-off-by: Damien George <damien@micropython.org>
2023-04-27 18:03:06 +10:00
小权一句两句
94ee1b629a unix/main: Free pathbuf when there's an error opening a file. 2023-01-20 19:38:14 +11:00
Jim Mussared
8e912a501a unix: Enable sys.executable.
Gives the absolute path to the unix micropython 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 18:10:30 +11:00
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
c1530a0ce8 unix: Refactor mpconfigport.h and mpconfigvariant.h.
This is a no-op for coverage and minimal.

The standard and dev variants have been merged and enable the same feature
set as a typical bare-metal board.  And remove the CI for the dev build.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-09-13 17:39:03 +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
Rob Knegjens
d2e4cf00cc unix: Enable MICROPY_GC_SPLIT_HEAP on coverage build.
With a new option to evenly split the GC heap over multiple areas.  This
adds code coverage for gc_add() and code associated with
MICROPY_GC_SPLIT_HEAP.
2022-07-23 00:43:08 +10:00
David Lechner
093c4b6b26 unix/main: Restore tty settings on nlr_jump_fail().
Since nlr_jump_fail() exits the process, it can leave the terminal in raw
mode which means characters are not echoed.  Fix this by restoring the
original terminal mode.

Signed-off-by: David Lechner <david@pybricks.com>
2022-07-12 17:20:37 +10:00
David Lechner
c012318d74 unix: Implement -X realtime command-line option on macOS.
This adds a new command line option to the unix port `-X realtime` to
enable realtime priority on threads.  This enables high precision timers
for applications that need more accurate timers.

Related docs:
https://developer.apple.com/library/archive/technotes/tn2169/_index.html

Fixes issue #8621.

Signed-off-by: David Lechner <david@pybricks.com>
2022-05-24 00:51:47 +10:00
Damien George
402df833fe py/modsys: Introduce sys.implementation._machine constant.
This contains a string useful for identifying the underlying machine.  This
string is kept consistent with the second part of the REPL banner via the
new config option MICROPY_BANNER_MACHINE.

This makes os.uname() more or less redundant, as all the information in
os.uname() is now available in the sys module.

Signed-off-by: Damien George <damien@micropython.org>
2022-04-28 17:23:03 +10:00
Damien George
40047823bc py/modsys: Append MicroPython git version and build date to sys.version.
This commit adds the git hash and build date to sys.version.  This is
allowed according to CPython docs, and is what PyPy does.  The docs state:

    A string containing the version number of the Python interpreter plus
    additional information on the build number and compiler used.

Eg on CPython:

    Python 3.10.4 (main, Mar 23 2022, 23:05:40) [GCC 11.2.0] on linux
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import sys
    >>> sys.version
    '3.10.4 (main, Mar 23 2022, 23:05:40) [GCC 11.2.0]'

and PyPy:

    Python 2.7.12 (5.6.0+dfsg-4, Nov 20 2016, 10:43:30)
    [PyPy 5.6.0 with GCC 6.2.0 20161109] on linux2
    Type "help", "copyright", "credits" or "license" for more information.
    >>>> import sys
    >>>> sys.version
    '2.7.12 (5.6.0+dfsg-4, Nov 20 2016, 10:43:30)\n[PyPy 5.6.0 with GCC ...

With this commit on MicroPython we now have:

    MicroPython v1.18-371-g9d08eb024 on 2022-04-28; linux [GCC 11.2.0] v...
    Use Ctrl-D to exit, Ctrl-E for paste mode
    >>> import sys
    >>> sys.version
    '3.4.0; MicroPython v1.18-371-g9d08eb024 on 2022-04-28'

Note that the start of the banner is the same as the end of sys.version.
This helps to keep code size under control because the string can be reused
by the compiler.

Signed-off-by: Damien George <damien@micropython.org>
2022-04-28 15:23:17 +10:00
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
2b409ef8a4 unix/moduos: Convert module to use extmod version.
All variants now use extmod/moduos.c as their uos module implementation.
In particular this means they all have MICROPY_VFS enabled and use VfsPosix
for their filesystem.

As part of this, the available functions in uos become more consistent with
other ports:
- coverage variant gets uos.urandom
- minimal and standard variant get: unlink, chdir, getcwd, listdir

Signed-off-by: Damien George <damien@micropython.org>
2022-03-09 21:13:57 +11:00
stijn
5f50f4a130 unix: Show compiler info in REPL banner.
The unix port's main.c gets used by unix and windows ports, and with a
variety of compilers, so it's convenient to see which version is actually
being used immediately when starting micropython.  This is similar to what
CPython does.
2022-02-22 00:59:31 +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
Jim Mussared
86ce442607 ports: Add '.frozen' as the first entry in sys.path.
Frozen modules will be searched preferentially, but gives the user the
ability to override this behavior.

This matches the previous behavior where "" was implicitly the frozen
search path, but the frozen list was checked before the filesystem.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2021-12-18 00:08:07 +11:00
Damien George
136369d72f all: Update to point to files in new shared/ directory.
Signed-off-by: Damien George <damien@micropython.org>
2021-07-12 17:08:10 +10:00
Damien George
36cb365cad unix/main: Increase stack limit on ARM architectures.
Signed-off-by: Damien George <damien@micropython.org>
2021-06-05 11:03:09 +10:00
Marian Buschsieweke
9c9bfe1968 unix/main: Make static variable that's potentially clobbered by longjmp.
This fixes `error: variable 'subpkg_tried' might be clobbered by 'longjmp'
or 'vfork' [-Werror=clobbered]` when compiling on ppc64le and aarch64 (and
possibly other architectures/toolchains).
2021-04-14 10:45:26 +10:00
stijn
a66286f3a0 unix: Improve command line argument processing.
Per CPython everything which comes after the command, module or file
argument is not an option for the interpreter itself.  Hence the processing
of options should stop when encountering those, and the remainder be passed
as sys.argv.  Note the latter was already the case for a module or file but
not for a command.

This fixes issues like 'micropython myfile.py -h' showing the help and
exiting instead of passing '-h' as sys.argv[1], likewise for
'-X <something>' being treated as a special option no matter where it
occurs on the command line.
2021-04-07 12:41:25 +10:00
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
stijn
b9a35bebf7 py/qstr.h: Remove QSTR_FROM_STR_STATIC macro.
It practically does the same as qstr_from_str and was only used in one
place, which should actually use the compile-time MP_QSTR_XXX form for
consistency; qstr_from_str is for runtime strings only.
2021-01-30 13:40:48 +11:00
stijn
fad4079778 esp32,unix: Support building C++ code.
Support building .cpp files and linking them into the micropython
executable in a way similar to how it is done for .c files.  The main
incentive here is to enable user C modules to use C++ files (which are put
in SRC_MOD_CXX by py.mk) since the core itself does not utilize C++.

However, to verify build functionality a unix overage test is added.  The
esp32 port already has CXXFLAGS so just add the user modules' flags to it.
For the unix port use a copy of the CFLAGS but strip the ones which are not
usable for C++.
2020-10-29 15:29:50 +11:00
Damien George
acdb0608b7 py/parse: Pass in an mp_print_t to mp_parse_node_print.
So the output can be redirected if needed.

Signed-off-by: Damien George <damien@micropython.org>
2020-09-11 23:00:03 +10:00
Yu-Ming Chang
dd8db974d7 unix/main: Enter REPL when inspect active, even with stdin redirected.
This is how CPython behaves.
2020-05-16 14:13:15 +10:00
Jim Mussared
7563d58210 unix: Add support for modbluetooth and BLE using btstack.
This commit adds full support to the unix port for Bluetooth using the
common extmod/modbluetooth Python bindings.  This uses the libusb HCI
transport, which supports many common USB BT adaptors.
2020-04-29 16:45:46 +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
David Lechner
9418611c8a unix: Implement PEP 475 to retry syscalls failing with EINTR.
https://www.python.org/dev/peps/pep-0475/

This implements something similar to PEP 475 on the unix port, and for the
VfsPosix class.

There are a few differences from the CPython implementation:
- Since we call mp_handle_pending() between any ENITR's, additional
  functions could be called if MICROPY_ENABLE_SCHEDULER is enabled, not
  just signal handlers.
- CPython only handles signal on the main thread, so other threads will
  raise InterruptedError instead of retrying.  On MicroPython,
  mp_handle_pending() will currently raise exceptions on any thread.

A new macro MP_HAL_RETRY_SYSCALL is introduced to reduce duplicated code
and ensure that all instances behave the same.  This will also allow other
ports that use POSIX-like system calls (and use, eg, VfsPosix) to provide
their own implementation if needed.
2020-03-27 14:40:46 +11:00
Damien George
2cdf1d25f5 unix: Remove custom file implementation to use extmod's VFS POSIX one.
The implementation in extmod/vfs_posix_file.c is now equivalent to that in
ports/unix/file.c, so remove the latter and use the former instead.
2020-03-18 21:01:07 +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
stijn
8b6e6008c7 unix/main: Use OS-dependent path separator when searching path. 2020-02-11 13:33:56 +11:00
Damien George
5a91cd9ff3 lib/utils/pyexec: Handle pending exceptions after disabling kbd intrs.
Pending exceptions would otherwise be handled later on where there may not
be an NLR handler in place.

A similar fix is also made to the unix port's REPL handler.

Fixes issues #4921 and #5488.
2020-02-07 16:08:26 +11:00
David Lechner
83439e38fc unix/main: Add command-line -h option for printing help text.
This adds a -h option to print the usage help text and adds a new, shorter
error message that is printed when invalid arguments are given.  This
behaviour follows CPython (and other tools) more closely.
2020-02-04 17:54:31 +11:00
David Lechner
5a63bc5a44 unix/main: Add #if guard around -v option usage and document -i/-m opts.
This commit modifies the usage() function to only print the -v option help
text when MICROPY_DEBUG_PRINTERS is enabled.  The -v option requires this
build option to be enabled for it to have any effect.

The usage text is also modified to show the -i and -m options, and also
show that running a command, module or file are mutually exclusive.
2020-02-04 17:53:35 +11:00
David Lechner
122baa6787 unix/main: Add support for MICROPYINSPECT environment variable.
This adds support for a MICROPYINSPECT environment variable that works
exactly like PYTHONINSPECT; per CPython docs:

    If this is set to a non-empty string it is equivalent to specifying the
    -i option.

    This variable can also be modified by Python code using os.environ to
    force inspect mode on program termination.
2020-02-04 17:52:58 +11:00
David Lechner
4ab8bee82f unix/main: Print usage and NLR errors to stderr instead of stdout.
When stdout is redirected it is useful to have errors printed to stderr
instead of being redirected.

mp_stderr_print() can't be used in these two instances since the
MicroPython runtime is not running so we use fprintf(stderr) instead.
2020-02-01 22:44:08 +11:00
David Lechner
fee7e5617f unix: Release GIL during all system calls.
Addition of GIL EXIT/ENTER pairs are:

- modos: release the GIL during system calls.  CPython does this as well.

- moduselect: release the GIL during the poll() syscall.  This call can be
  blocking, so it is important to allow other threads to run at this time.

- modusocket: release the GIL during system calls.  Many of these calls can
  be blocking, so it is important to allow other threads to run.

- unix_mphal: release the GIL during the read and write syscalls in
  mp_hal_stdin_rx_chr and mp_hal_stdout_tx_strn.  If we don't do this
  threads are blocked when the REPL or the builtin input function are used.

- file, main, mpconfigport.h: release GIL during syscalls in built-in
  functions that could block.
2020-01-26 23:21:29 +11:00
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
af20c2ead3 py: Add global default_emit_opt variable to make emit kind persistent.
mp_compile no longer takes an emit_opt argument, rather this setting is now
provided by the global default_emit_opt variable.

Now, when -X emit=native is passed as a command-line option, the emitter
will be set for all compiled modules (included imports), not just the
top-level script.

In the future there could be a way to also set this variable from a script.

Fixes issue #4267.
2019-08-28 12:47:58 +10:00
Damien George
15b36aa0af unix/main: Only accept full emit cmd-line options if native enabled. 2019-08-28 12:47:58 +10:00
Milan Rossa
6f0c6bd774 unix: Enable sys.atexit, triggered after the main script ends. 2019-08-15 17:31:04 +10:00
Paul Sokolovsky
016d9a40fe various: Add and update my copyright line based on git history.
For modules I initially created or made substantial contributions to.
2019-05-17 18:04:15 +10:00
Mikhail Zakharov
f8c1be85d1 unix/mpthreadport: Add thread deinit code to stop threads on exit.
Free unused memory for threads and cancel any outstanding threads on
interpreter exit to avoid possible segmentaiton fault.
2019-01-27 12:38:23 +11:00
Damien George
b2fa1b50ed ports: Call gc_sweep_all() when doing a soft reset.
This calls finalisers of things like files and sockets to cleanly close
them.
2018-06-12 11:56:25 +10:00
Damien George
1d40f12e44 unix: Support MICROPY_VFS_POSIX and enable it in coverage build.
The unix coverage build is now switched fully to the VFS implementation, ie
the uos module is the uos_vfs module.  For example, one can now sandbox uPy
to their home directory via:

    $ ./micropython_coverage

    >>> import uos
    >>> uos.umount('/') # unmount existing root VFS
    >>> vfs = uos.VfsPosix('/home/user') # create new POSIX VFS
    >>> uos.mount(vfs, '/') # mount new POSIX VFS at root

Some filesystem/OS features may no longer work with the coverage build due
to this change, and these need to be gradually fixed.

The standard unix port remains unchanged, it still uses the traditional uos
module which directly accesses the underlying host filesystem.
2018-06-06 14:28:23 +10:00