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The `asm_n_pos_args` and `asm_type_sig` members of `mp_raw_code_t` are only
used for raw codes of type MP_CODE_NATIVE_ASM, which are rare, for example
in frozen code. So using a truncated `mp_raw_code_t` in these cases helps
to reduce frozen code size on targets that have MICROPY_EMIT_INLINE_ASM
enabled.
With this, change in firmware size of RPI_PICO builds is -648.
Signed-off-by: Damien George <damien@micropython.org>
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The mp_raw_code_t struct has been reordered and some members resized. The
`n_pos_args` member is renamed to `asm_n_pos_args`, and `type_sig` renamed
to `asm_type_sig` to indicate that these are used only for the inline-asm
emitters. These two members are also grouped together in the struct.
The justifications for resizing the members are:
- `fun_data_len` can be 32-bits without issue
- `n_children` is already limited to 16-bits by
`mp_emit_common_t::ct_cur_child`
- `scope_flags` is already limited to 16-bits by `scope_t::scope_flags`
- `prelude_offset` is already limited to 16-bits by the argument to
`mp_emit_glue_assign_native()`
- it's reasonable to limit the maximim number of inline-asm arguments to 12
(24 bits for `asm_type_sig` divided by 2)
This change helps to reduce frozen code size (and in some cases RAM usage)
in the following cases:
- 64-bit targets
- builds with MICROPY_PY_SYS_SETTRACE enabled
- builds with MICROPY_EMIT_MACHINE_CODE enabled but MICROPY_EMIT_INLINE_ASM
disabled
With this change, unix 64-bit builds are -4080 bytes in size. Bare-metal
ports like rp2 are unchanged (because mp_raw_code_t is still 32 bytes on
those 32-bit targets).
Signed-off-by: Damien George <damien@micropython.org>
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They have been moved from the "os" module.
Signed-off-by: Damien George <damien@micropython.org>
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If a return is executed within the try block of a try-finally then the
return value is stored on the top of the Python stack during the execution
of the finally block. In this case the Python stack is one larger than it
normally would be in the finally block.
Prior to this commit, the compiler was not taking this case into account
and could have a Python stack overflow if the Python stack used by the
finally block was more than that used elsewhere in the function. In such
a scenario the last argument of the function would be clobbered by the
top-most temporary value used in the deepest Python expression/statement.
This commit fixes that case by making sure enough Python stack is allocated
to the function.
Fixes issue #13562.
Signed-off-by: Damien George <damien@micropython.org>
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stat_path is only called with stringified vstr_t objects.
Thus, pulling the stringification into the function replaces three
function calls with one, saving a few bytes.
Signed-off-by: Matthias Urlichs <matthias@urlichs.de>
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This will apply to bare-arm and minimal, as well as the minimal unix
variant.
Change the default to MICROPY_QSTR_BYTES_IN_HASH=1 for the CORE,BASIC
levels, 2 for >=EXTRA.
Removes explicit setting of MICROPY_QSTR_BYTES_IN_HASH==1 in ports that
don't set the feature level (because 1 is implied by the default level,
CORE). Applies to cc3200, pic16bt, powerpc.
Removes explicit setting for nRF (which sets feature level). Also for samd,
which sets CORE for d21 and FULL for d51. This means that d21 is unchanged
with MICROPY_QSTR_BYTES_IN_HASH==1, but d51 now moves from 1 to 2 (roughly
adds 1kiB).
The only remaining port which explicitly set bytes-in-hash is rp2 because
it's high-flash (hence CORE level) but lowish-SRAM, so it's worthwhile
saving the RAM for runtime qstrs.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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This disables using qstr hashes altogether, which saves RAM and flash
(two bytes per interned string on a typical build) as well as code size.
On PYBV11 this is worth over 3k flash.
qstr comparison will now be done just by length then data. This affects
qstr_find_strn although this has a negligible performance impact as, for a
given comparison, the length and first character will ~usually be
different anyway.
String hashing (e.g. builtin `hash()` and map.c) now need to compute the
hash dynamically, and for the map case this does come at a performance
cost.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Make can't handle paths with spaces, see https://savannah.gnu.org/bugs/?712
The following workarounds exist:
- When using make's built-in functions:
- Use relative paths wherever possible to avoid spaces in the first
place.
- All spaces in paths can be escaped with backslashes; quotes don't
work.
- Some users use the shell to temporarily rename directories, or to
create symlinks without spaces.
- When using make to pass commands to the system's shell, enclose paths in
quotes. While make will still interpret quoted strings with spaces as
multiple words, the system's shell will correctly parse the resulting
command.
This commit contains the following fixes:
- In ports/stm32/mboot/Makefile: Use relative paths to avoid spaces when
using built-in functions.
- In all other files: Use quotes to enclose paths when make is used to call
shell functions.
All changes have been tested with a directory containing spaces.
Signed-off-by: Iksas <iksas@mailbox.org>
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This was originally needed because the .c --> .o rule is:
$(BUILD)/%.o: %.c
and because the generated frozen_content.c is inside build-FOO, it must
therefore generate build-FOO/build-FOO/frozen_content.o.
But 2eda5138701d6a7d36f8d8e3700d136b3c1161b7 added a new build rule for
pins.c that can also be used for frozen_content.c.
Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
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Signed-off-by: Damien George <damien@micropython.org>
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Signed-off-by: Damien George <damien@micropython.org>
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When compiling with distcc, it does not understand the -MD flag on its own.
This fixes the interaction by explicitly adding the -MF option.
The error in distcc is described here under "Problems with gcc -MD":
https://www.distcc.org/faq.html
Signed-off-by: Peter Züger <zueger.peter@icloud.com>
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MicroPython code may rely on the return value of sys.stdout.buffer.write()
to reflect the number of bytes actually written. While in most scenarios a
write() operation is successful, there are cases where it fails, leading to
data loss. This problem arises because, currently, write() merely returns
the number of bytes it was supposed to write, without indication of
failure.
One scenario where write() might fail, is where USB is used and the
receiving end doesn't read quickly enough to empty the receive buffer. In
that case, write() on the MicroPython side can timeout, resulting in the
loss of data without any indication, a behavior observed notably in
communication between a Pi Pico as a client and a Linux host using the ACM
driver.
A complex issue arises with mp_hal_stdout_tx_strn() when it involves
multiple outputs, such as USB, dupterm and hardware UART. The challenge is
in handling cases where writing to one output is successful, but another
fails, either fully or partially. This patch implements the following
solution:
mp_hal_stdout_tx_strn() attempts to write len bytes to all of the possible
destinations for that data, and returns the minimum successful write
length.
The implementation of this is complicated by several factors:
- multiple outputs may be enabled or disabled at compiled time
- multiple outputs may be enabled or disabled at runtime
- mp_os_dupterm_tx_strn() is one such output, optionally containing
multiple additional outputs
- each of these outputs may or may not be able to report success
- each of these outputs may or may not be able to report partial writes
As a result, there's no single strategy that fits all ports, necessitating
unique logic for each instance of mp_hal_stdout_tx_strn().
Note that addressing sys.stdout.write() is more complex due to its data
modification process ("cooked" output), and it remains unchanged in this
patch. Developers who are concerned about accurate return values from
write operations should use sys.stdout.buffer.write().
This patch might disrupt some existing code, but it's also expected to
resolve issues, considering that the peculiar return value behavior of
sys.stdout.buffer.write() is not well-documented and likely not widely
known. Therefore, it's improbable that much existing code relies on the
previous behavior.
Signed-off-by: Maarten van der Schrieck <maarten@thingsconnected.nl>
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There are two main changes here to improve the calculation of the size of
the next heap area when automatically expanding the heap:
- Compute the existing total size by counting the total number of GC
blocks, and then using that to compute the corresponding number of bytes.
- Round the bytes value up to the nearest multiple of BYTES_PER_BLOCK.
This makes the calculation slightly simpler and more accurate, and makes
sure that, in the case of growing from one area to two areas, the number
of bytes allocated from the system for the second area is the same as the
first. For example on esp32 with an initial area size of 65536 bytes, the
subsequent allocation is also 65536 bytes. Previously it was a number that
was not even a multiple of 2.
Signed-off-by: Damien George <damien@micropython.org>
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In "cat" mode, output was written to a file named "out", then moved to the
location of the real output file. There was no reason for this.
While makeqstrdefs.py does make an effort to not update the timestamp on an
existing output file that has not changed, the intermediate "out" file
isn't part of the that process.
Signed-off-by: Trent Piepho <tpiepho@gmail.com>
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In "cat" mode a "$output_file.hash" file is checked to see if the hash of
the new output is the same as the existing, and if so the output file isn't
updated.
However, it's possible that the output file has been deleted but the hash
file has not. In this case the output file is not created.
Change the logic so that a hash file is considered stale if there is no
output file and still create the output.
Signed-off-by: Trent Piepho <tpiepho@gmail.com>
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These are produced by the "cat" command to makeqstrdefs.py, to allow it to
not update unchanged files. cmake doesn't know about them and so they are
not removed on a "clean".
This triggered a bug in makeqstrdefs.py where it would not recreate a
deleted output file (which is removed by clean) if a stale hash file with a
valid hash still existed.
Listing them as byproducts will cause them to be deleted on clean.
Signed-off-by: Trent Piepho <tpiepho@gmail.com>
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Signed-off-by: stijn <stijn@ignitron.net>
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These are intended to replace MICROPY_EVENT_POLL_HOOK and
MICROPY_EVENT_POLL_HOOK_FAST, which are insufficient for tickless ports.
This implementation is along the lines suggested here:
https://github.com/micropython/micropython/issues/12925#issuecomment-1803038430
Currently any usage of these functions expands to use the existing hook
macros, but this can be switched over port by port.
This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>
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MICROPY_BEGIN_ATOMIC_SECTION/MICROPY_END_ATOMIC_SECTION belong more to the
MicroPython HAL rather than build configuration settings, so move their
default configuration to py/mphal.h, and require all users of these macros
to include py/mphal.h (here, py/objexcept.c and py/scheduler.c).
This helps ports separate configuration from their HAL implementations, and
can improve build times (because mpconfig.h is included everywhere, whereas
mphal.h is not).
Signed-off-by: Damien George <damien@micropython.org>
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This saves ~84 bytes on trinket m0, and saves 112 bytes on PYBV10.
Signed-off-by: Jeff Epler <jepler@gmail.com>
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This allows e.g. a board (or make command line) to set
MICROPY_MANIFEST_MY_VARIABLE = path/to/somewhere
set(MICROPY_MANIFEST_MY_VARIABLE path/to/somewhere)
and then in the manifest.py they can query this, e.g. via
include("$(MY_VARIABLE)/path/manifest.py")
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Otherwise passing in a non-integer can lead to an invalid memory access.
Thanks to Junwha Hong and Wonil Jang @S2Lab, UNIST for finding the issue.
Fixes issue #13007.
Signed-off-by: Damien George <damien@micropython.org>
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Fixes issue #12951.
Signed-off-by: stijn <stijn@ignitron.net>
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Can be used to speed up importing a file from a vfs based filesystem.
Signed-off-by: Andrew Leech <andrew.leech@planetinnovation.com.au>
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Add a .ico file with common icon image size, created from
vector-logo-2.png, and embed it into the resulting executable.
Signed-off-by: stijn <stijn@ignitron.net>
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This handles the case where an empty bytes/bytearray/str could pass in
NULL as the str argument (with length zero). This would result in UB in
strncmp. Even though our bare-metal implementation of strncmp handles
this, best to avoid it for when we're using system strncmp.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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This fixes the case where e.g.
struct foo_t {
mp_obj_t x;
uint16_t y;
char buf[];
};
will have `sizeof(struct foo_t)==8`, but `offsetof(struct foo_t, buf)==6`.
When computing the size to allocate for `m_new_obj_var` we need to use
offsetof to avoid over-allocating. This is important especially when it
might cause it to spill over into another GC block.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Set the position of new line tokens as the end of the preceding line
instead of the beginning of the next line. This is done by first moving
the pointer to the end of the current line to skip any whitespace, record
the position for the token, then finaly skip any other line and whitespace.
The previous behavior was to skip every new line and whitespace, including
the indent of the next line, before recording the token position.
(Note that both lex->emit_dent and lex->nested_bracket_level equal 0 if
had_physical_newline == true, which allows simplifying the if-logic for
MP_TOKEN_NEWLINE.)
And update the cmd_parsetree.py test expected output, because the position
of the new-line token has changed.
Fixes issue #12792.
Signed-off-by: Mathieu Serandour <mathieu.serandour@numworks.fr>
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Signed-off-by: Damien George <damien@micropython.org>
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This prevents each port Makefile from having to add an explicit rule for
`build-BOARD/pins_BOARD.c`.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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ESP32-C3 is not Xtensa-based, so build settings are now tailored a bit
better following that fact. ESP-IDF 5.x already adds architecture-specific
modules by itself so there is no need to specify either the `xtensa` or the
`riscv` module in the build settings.
Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
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This provides a significant performance boost for qstr_find_strn, which is
called a lot during parsing and loading of .mpy files, as well as interning
of string objects (which happens in most string methods that return new
strings).
Also adds comments to explain the "static" qstrs. These are part of the
.mpy ABI and avoid needing to duplicate string data for QSTRs known to
already be in the firmware. The static pool isn't currently sorted, but in
the future we could either split the static pool into the sorted regions,
or in the next .mpy version just sort them.
Based on initial work done by @amirgon in #6896.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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`ASM_MOV_REG_IMM_FIX_U16` and `ASM_MOV_REG_IMM_FIX_WORD` are no longer
used anywhere in the code.
See discussion in #12771.
Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
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This provides a way to enable features and changes slated for MicroPython
2.x, by running `make MICROPY_PREVIEW_VERSION_2=1`. Also supported for
the cmake ports (except Zephyr).
This is an alternative to having a 2.x development branch (or equivalently,
keeping a 1.x release branch). Any feature or change that needs to be
"hidden" until 2.x can use this flag (either in the Makefile or the
preprocessor).
A good example is changing function arguments or other public API features,
in particular to aid in improving consistency between ports.
When `MICROPY_PREVIEW_VERSION_2` is enabled, the REPL banner is amended to
say "MicroPython (with v2.0 preview) vX.Y.Z", and sys.implementation gets a
new field `_v2` set to `True`.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Signed-off-by: Damien George <damien@micropython.org>
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The main thread gets this because the thread state is in bss, but
subsequent threads need this field to be initialised.
Also added a note to mpstate.h to help avoid missing this in the future.
Fixes issue #12695.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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This is required because the previous commit changed the .mpy native ABI.
Signed-off-by: Damien George <damien@micropython.org>
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Signed-off-by: Damien George <damien@micropython.org>
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This allows mp_get_buffer_raise() to be changed to a simple inline function
that in the majority of cases costs the same (in code size) to call as the
original mp_get_buffer_raise(), because the flags argument is a constant.
Signed-off-by: Damien George <damien@micropython.org>
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Signed-off-by: Damien George <damien@micropython.org>
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This behaviour matches CPython. It's useful to be able to store bound
method objects in dicts/sets, and compare for equality, eg when storing
them in a list and using list.remove().
Signed-off-by: Daniël van de Giessen <daniel@dvdgiessen.nl>
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If a non-string buffer was passed to execfile, then it would be passed
as a non-null-terminated char* to mp_lexer_new_from_file.
This changes mp_lexer_new_from_file to take a qstr instead (as in almost
all cases a qstr will be created from this input anyway to set the
`__file__` attribute on the module).
This now makes execfile require a string (not generic buffer) argument,
which is probably a good fix to make anyway.
Fixes issue #12522.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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"Raise SomeException() from None" is a common Python idiom to suppress
chained exceptions and thus shouldn't trigger a warning on a version of
Python that doesn't support them in the first place.
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See https://github.com/micropython/micropython/issues/12127 for details.
Previously at the point when a release is made, we update mpconfig.h
and set a git tag. i.e. the version increments at the release.
Now the version increments immediately after the release. The workflow is:
1. Final commit in the cycle updates mpconfig.h to set (X, Y, 0, 0) (i.e.
clear the pre-release state).
2. This commit is tagged "vX.Y.0".
3. First commit for the new cycle updates mpconfig.h to set (X, Y+1, 0, 1)
(i.e. increment the minor version, set the pre-release state).
4. This commit is tagged "vX.Y+1.0-preview".
The idea is that a nightly build is actually a "preview" of the _next_
release. i.e. any documentation describing the current release may not
actually match the nightly build. So we use "preview" as our semver
pre-release identifier.
Changes in this commit:
- Add MICROPY_VERSION_PRERELEASE to mpconfig.h to allow indicating that
this is not a release version.
- Remove unused MICROPY_VERSION integer.
- Append "-preview" to MICROPY_VERSION_STRING when the pre-release state
is set.
- Update py/makeversionhdr.py to no longer generate MICROPY_GIT_HASH.
- Remove the one place MICROPY_GIT_HASH was used (it can use
MICROPY_GIT_TAG instead).
- Update py/makeversionhdr.py to also understand
MICROPY_VERSION_PRERELEASE in mpconfig.h.
- Update py/makeversionhdr.py to convert the git-describe output into
semver-compatible "X.Y.Z-preview.N.gHASH".
- Update autobuild.sh to generate filenames using the new scheme.
- Update remove_old_firmware.py to match new scheme.
- Update mpremote's pyproject.toml to handle the "-preview" suffix in the
tag. setuptools_scm maps to this "rc0" to match PEP440.
- Fix docs heading where it incorrectly said "vvX.Y.Z" for release docs.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Signed-off-by: Damien George <damien@micropython.org>
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Signed-off-by: Damien George <damien@micropython.org>
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This was missed in 692d36d779192f32371f7f9daa845b566f26968d. Probably
never noticed because everything enables `MICROPY_GC_CONSERVATIVE_CLEAR`,
but found via ASAN thanks to @gwangmu & @chibinz.
This work was funded through GitHub Sponsors.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Signed-off-by: Ihor Nehrutsa <Ihor.Nehrutsa@gmail.com>
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This provides a way to build a non-DEBUG host binary that still has symbols
and debug information.
Document this for the unix port, and update a comment in the unix port
Makefile.
This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>
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