Commit Graph

2579 Commits

Author SHA1 Message Date
Damien George 2c7716fed0 py/objset: Ensure that use of frozenset.update raises an exception. 2016-09-28 11:06:18 +10:00
Damien George dd4135aeaf py/objset: Use mp_check_self() to check args of set/frozenset methods.
Following how other objects work, set/frozenset methods should use the
mp_check_self() macro to check the type of the self argument, because in
most cases this check can be a null operation.

Saves about 100-180 bytes of code for builds with set and frozenset
enabled.
2016-09-28 10:55:23 +10:00
Damien George 0c595fa094 py/objfun: Use if instead of switch to check return value of VM execute.
It's simpler and improves code coverage.
2016-09-27 23:08:10 +10:00
Damien George c71edaed73 py/objfun: Remove unnecessary check for viper fun with 5 or more args.
The native emitter/compiler restricts viper functions to 4 args, so there
is no need for an extra check in the dynamic dispatch.
2016-09-27 23:05:51 +10:00
Damien George 7385b018ed py/emitbc: Remove/refactor unreachable code, to improve coverage. 2016-09-27 15:46:50 +10:00
Damien George 897129a7ff py/objstr: Remove unreachable function used only for terse error msgs. 2016-09-27 15:45:42 +10:00
Damien George 791b65f4b2 py/modmicropython: Add micropython.const, alias for identity function.
Having a micropython.const identity function, and writing "from micropython
import const" at the start of scripts that use the const feature, allows to
write scripts which are compatible with CPython, and with uPy builds that
don't include const optimisation.

This patch adds such a function and updates the tests to do the import.
2016-09-27 13:34:21 +10:00
Damien George 71fec076dc py/vm: Use MP_OBJ_FROM_PTR to cast a type to an object. 2016-09-27 13:21:23 +10:00
Damien George f040685b0c py: Only store the exception instance on Py stack in bytecode try block.
When an exception is raised and is to be handled by the VM, it is stored
on the Python value stack so the bytecode can access it.  CPython stores
3 objects on the stack for each exception: exc type, exc instance and
traceback.  uPy followed this approach, but it turns out not to be
necessary.  Instead, it is enough to store just the exception instance on
the Python value stack.  The only place where the 3 values are needed
explicitly is for the __exit__ handler of a with-statement context, but
for these cases the 3 values can be extracted from the single exception
instance.

This patch removes the need to store 3 values on the stack, and instead
just stores the exception instance.

Code size is reduced by about 50-100 bytes, the compiler and VM are
slightly simpler, generate bytecode is smaller (by 2 bytes for each try
block), and the Python value stack is reduced in size for functions that
handle exceptions.
2016-09-27 12:37:21 +10:00
Paul Sokolovsky 9cc8ec843e py/py.mk: Add support for building modussl_mbedtls. 2016-09-23 14:30:46 +03:00
Damien George 6d310a5552 py/parse: Only replace constants that are standalone identifiers.
This fixes constant substitution so that only standalone identifiers are
replaced with their constant value (if they have one).  I.e. don't
replace NAME in expressions like obj.NAME or NAME = expr.
2016-09-23 17:23:16 +10:00
Damien George 7df9291b6c py: Update opcode format table because 3 opcodes were removed, 1 added.
LIST_APPEND, MAP_ADD and SET_ADD have been removed, and STORE_COMP has
been added in adaf0d865c.
2016-09-23 12:48:57 +10:00
Damien George e97df97600 py: Shrink mp_arg_t struct by using reduced-size integer members.
qstrs ids are restricted to fit within 2 bytes already (eg in persistent
bytecode) so it's safe to use a uint16_t to store them in mp_arg_t.  And
the flags member only needs a maximum of 2 bytes so can also use uint16_t.

Savings in code size can be significant when many mp_arg_t structs are
used for argument parsing.  Eg, this patch reduces stmhal by 480 bytes.
2016-09-23 12:13:51 +10:00
Damien George 6c79980b0e py/py.mk: Suppress some compiler warnings when building berkeley-db. 2016-09-22 11:09:21 +10:00
Damien George 79ec869f95 py/stream: Remove unnecessary check for NULL return from vstr_extend.
vstr_extend will now only return NULL if the vstr is a fixed buffer, which
in this case it is not.
2016-09-22 10:50:47 +10:00
Damien George 93c4a6a3f7 all: Remove 'name' member from mp_obj_module_t struct.
One can instead lookup __name__ in the modules dict to get the value.
2016-09-22 00:23:16 +10:00
Paul Sokolovsky 7ea3fa2641 py/builtinimport: Fix nanbox build after change to better handle -m modules. 2016-09-20 17:55:42 +03:00
Delio Brignoli 21c719bd0a builtinimport: add the module specified by -m to sys.modules as '__main__' 2016-09-20 14:01:31 +03:00
Damien George fbddea929d py/showbc: Make printf's go to the platform print stream.
The system printf is no longer used by the core uPy code.  Instead, the
platform print stream or DEBUG_printf is used.  Using DEBUG_printf in the
showbc functions would mean that the code can't be tested by the test
suite, so use the normal output instead.

This patch also fixes parsing of bytecode-line-number mappings.
2016-09-20 11:30:54 +10:00
Damien George e60835bac5 py/qstr: Remove a comment.
qstrs are always null terminated so qstr_str will stay as part of the API.
2016-09-19 13:18:54 +10:00
Damien George 8dd5960ac0 py/objnone: Use mp_generic_unary_op instead of custom one. 2016-09-19 12:28:55 +10:00
Damien George 5da0d29d3c py/vstr: Remove vstr.had_error flag and inline basic vstr functions.
The vstr.had_error flag was a relic from the very early days which assumed
that the malloc functions (eg m_new, m_renew) returned NULL if they failed
to allocate.  But that's no longer the case: these functions will raise an
exception if they fail.

Since it was impossible for had_error to be set, this patch introduces no
change in behaviour.

An alternative option would be to change the malloc calls to the _maybe
variants, which return NULL instead of raising, but then a lot of code
will need to explicitly check if the vstr had an error and raise if it
did.

The code-size savings for this patch are, in bytes: bare-arm:188,
minimal:456, unix(NDEBUG,x86-64):368, stmhal:228, esp8266:360.
2016-09-19 12:28:55 +10:00
Damien George adaf0d865c py: Combine 3 comprehension opcodes (list/dict/set) into 1.
With the previous patch combining 3 emit functions into 1, it now makes
sense to also combine the corresponding VM opcodes, which is what this
patch does.  This eliminates 2 opcodes which simplifies the VM and reduces
code size, in bytes: bare-arm:44, minimal:64, unix(NDEBUG,x86-64):272,
stmhal:92, esp8266:200.  Profiling (with a simple script that creates many
list/dict/set comprehensions) shows no measurable change in performance.
2016-09-19 12:28:03 +10:00
Damien George a5624bf381 py: Combine 3 comprehension emit functions (list/dict/set) into 1.
The 3 kinds of comprehensions are similar enough that merging their emit
functions reduces code size.  Decreases in code size in bytes are:
bare-arm:24, minimal:96, unix(NDEBUG,x86-64):328, stmhal:80, esp8266:76.
2016-09-19 12:23:31 +10:00
Paul Sokolovsky f28efa1971 py: Move frozen modules rules from esp8266 port for reuse across ports.
A port now just needs to define FROZEN_DIR var and add $(BUILD)/frozen.c
to SRC_C to support frozen modules.
2016-09-17 21:00:40 +03:00
Damien George f84b341618 py/objnone: Remove unnecessary handling of MP_UNARY_OP_BOOL.
bool(None) has a fast path in mp_obj_is_true so doesn't need to be
handled in none_unary_op.  The only caveat is that subclassing may
bypass the mp_obj_is_true function, but actually you aren't allowed to
subclass classes that have singleton instances like NoneType (see
https://mail.python.org/pipermail/python-dev/2002-March/020822.html for
reference on this point).
2016-09-16 12:30:09 +10:00
Chris Packham a50b26e4b0 py/makeqstrdefs.py: Use python 2.6 syntax for set creation.
py/makeqstrdefs.py declares that it works with python 2.6 however the
syntax used to initialise of a set with values was only added in python
2.7. This leads to build failures when the host system doesn't have
python 2.7 or newer.

Instead of using the new syntax pass a list of initial values through
set() to achieve the same result. This should work for python versions
from at least 2.6 onwards.

Helped-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Chris Packham <judge.packham@gmail.com>
2016-09-09 23:01:23 +10:00
Antonin ENFRUN f3b19ef634 py/asmthumb: Flush D-cache, and invalidate I-cache on STM32F7.
Tested on a STM32F7DISCO at 216MHz.  All tests generating code (inlineasm,
native, viper) now pass, except pybnative/while.py, but that's because
there is no LED(2).
2016-09-09 14:48:15 +10:00
Delio Brignoli e2ac8bb3f1 py: Add MICROPY_USE_INTERNAL_PRINTF option, defaults to enabled.
This new config option allows to control whether MicroPython uses its own
internal printf or not (if not, an external one should be linked in).
Accompanying this new option is the inclusion of lib/utils/printf.c in the
core list of source files, so that ports no longer need to include it
themselves.
2016-09-05 12:18:53 +10:00
Chris Packham 8c6856d2e7 py/emitglue.c: provide mp_raw_code_load_file for any unix architecture
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
2016-09-04 16:17:46 +10:00
Damien George 5f3bda422a py: If str/bytes hash is 0 then explicitly compute it. 2016-09-02 14:49:50 +10:00
Damien George f127bef3e4 py/makeqstrdata.py: Compute the qstr hash from bytes, not characters. 2016-09-02 14:32:47 +10:00
Delio Brignoli f98bb2ddcb py/mpprint: Fail an assertion with unsupported format specifiers.
Arguments of an unknown type cannot be skipped and continuing to parse a
format string after encountering an unknown format specifier leads to
undefined behaviour.  This patch helps to find use of unsupported formats.
2016-09-01 18:09:44 +10:00
Damien George 0823c1baf8 extmod: Add machine_spi with generic SPI C-protocol and helper methods.
The idea is that all ports can use these helper methods and only need to
provide initialisation of the SPI bus, as well as a single transfer
function.  The coding pattern follows the stream protocol and helper
methods.
2016-09-01 15:07:20 +10:00
Paul Sokolovsky 1f61fe07a2 py/mkrules.mk: Allow to override name of libmicropython.a
Or alternatively, refer to an exact library file, not just phony target
"lib".
2016-08-30 00:59:17 +03:00
Damien George f4ee9f8853 py/bc.h: Rename _mp_code_state to _mp_code_state_t.
This rename was missed in the previous patch.
2016-08-27 23:23:51 +10:00
Damien George 581a59a456 py: Rename struct mp_code_state to mp_code_state_t.
Also at _t to mp_exc_stack pre-declaration in struct typedef.
2016-08-27 23:21:00 +10:00
Damien George 26295e04ff py/emitglue: Use more compact mp_raise_ValueError function. 2016-08-26 23:45:07 +10:00
Damien George fe3cc5bb53 py/modstruct: Use more compact mp_raise_ValueError function.
Saves a few bytes of code size.
2016-08-26 23:42:40 +10:00
Damien George 24df30c133 py/compile: Don't compile assert statements when optimisations enabled.
As per CPython.
2016-08-26 22:28:22 +10:00
Damien George 5ffe1d8dc0 py/gc: Add MICROPY_GC_CONSERVATIVE_CLEAR option to always zero memory.
There can be stray pointers in memory blocks that are not properly zero'd
after allocation.  This patch adds a new config option to always zero all
allocated memory (via gc_alloc and gc_realloc) and hence help to eliminate
stray pointers.

See issue #2195.
2016-08-26 15:35:26 +10:00
Paul Sokolovsky c428367543 extmod/modubinascii: Make crc32() support configurable.
Disable by default, enable in unix port.
2016-08-24 18:28:43 +03:00
Krzysztof Blazewicz 6562076454 py/stream.c: use mp_obj_get_type in mp_get_stream_raise
In current state `mp_get_stream_raise` assumes that `self_in` is an object
and always performs a pointer derefence which may cause a segfault.

This function shall throw an exception whenever `self_in` does not implement
a stream protocol, that includes qstr's and numbers.

fixes #2331
2016-08-24 01:33:31 +03:00
Damien George 095e43a9a5 py/sequence: Allow to use bignums as indices in slice objects.
See issue #2264.
2016-08-15 23:26:34 +10:00
Damien George 41fceae559 py/obj.h: For obj reprs A,B,C use void* explicitly for mp_obj_t typedef.
The machine_ptr_t type is long obsolete as the type of mp_obj_t is now
defined by the object representation, ie by MICROPY_OBJ_REPR.  So just use
void* explicitly for the typedef of mp_obj_t.

If a port wants to use something different then they should define a new
object representation.
2016-08-15 10:56:55 +10:00
Damien George 2196799051 py/objstr: Use mp_raise_{Type,Value}Error instead of mp_raise_msg.
This patch does further refactoring using the new mp_raise_TypeError
and mp_raise_ValueError functions.
2016-08-14 16:51:54 +10:00
Damien George 1a0d3fd632 py/runtime.h: Move comment about mp_not_implemented to correct place. 2016-08-14 16:35:10 +10:00
Damien George 4aaa5adf9f py/objtuple: In tuple_cmp_helper, use mp_check_self instead of raising.
Only tuple, namedtuple and attrtuple use the tuple_cmp_helper function,
and they all have getiter=mp_obj_tuple_getiter, so the check here is only
to ensure that the self object is consistent.  Hence use mp_check_self.
2016-08-14 16:28:05 +10:00
Paul Sokolovsky c4a8004933 py: Get rid of assert() in method argument checking functions.
Checks for number of args removes where guaranteed by function descriptor,
self checking is replaced with mp_check_self(). In few cases, exception
is raised instead of assert.
2016-08-12 22:39:03 +03:00
Paul Sokolovsky 83e0ebabb4 py/objdict: Get rid of asserts (remove/replace with mp_check_self()). 2016-08-12 22:01:11 +03:00