Commit Graph

35 Commits

Author SHA1 Message Date
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
Damien George
357486d9b4 unix: Add support for using the Python stack. 2017-12-11 13:49:09 +11:00
Damien George
4601759bf5 py/objstr: Remove "make_qstr_if_not_already" arg from mp_obj_new_str.
This patch simplifies the str creation API to favour the common case of
creating a str object that is not forced to be interned.  To force
interning of a new str the new mp_obj_new_str_via_qstr function is added,
and should only be used if warranted.

Apart from simplifying the mp_obj_new_str function (and making it have the
same signature as mp_obj_new_bytes), this patch also reduces code size by a
bit (-16 bytes for bare-arm and roughly -40 bytes on the bare-metal archs).
2017-11-16 13:17:51 +11:00
Damien George
a3dc1b1957 all: Remove inclusion of internal py header files.
Header files that are considered internal to the py core and should not
normally be included directly are:
    py/nlr.h - internal nlr configuration and declarations
    py/bc0.h - contains bytecode macro definitions
    py/runtime0.h - contains basic runtime enums

Instead, the top-level header files to include are one of:
    py/obj.h - includes runtime0.h and defines everything to use the
        mp_obj_t type
    py/runtime.h - includes mpstate.h and hence nlr.h, obj.h, runtime0.h,
        and defines everything to use the general runtime support functions

Additional, specific headers (eg py/objlist.h) can be included if needed.
2017-10-04 12:37:50 +11:00
Damien George
01dd7804b8 ports: Make new ports/ sub-directory and move all ports there.
This is to keep the top-level directory clean, to make it clear what is
core and what is a port, and to allow the repository to grow with new ports
in a sustainable way.
2017-09-06 13:40:51 +10:00