Commit Graph

122 Commits

Author SHA1 Message Date
Damien George 6e56bb623c py: Fallback to stack alloca for Python-stack if heap alloc fails.
If heap allocation for the Python-stack of a function fails then we may
as well allocate the Python-stack on the C stack.  This will allow to
run more code without using the heap.
2015-06-08 22:07:27 +01:00
Damien George c2a4e4effc py: Convert hash API to use MP_UNARY_OP_HASH instead of ad-hoc function.
Hashing is now done using mp_unary_op function with MP_UNARY_OP_HASH as
the operator argument.  Hashing for int, str and bytes still go via
fast-path in mp_unary_op since they are the most common objects which
need to be hashed.

This lead to quite a bit of code cleanup, and should be more efficient
if anything.  It saves 176 bytes code space on Thumb2, and 360 bytes on
x86.

The only loss is that the error message "unhashable type" is now the
more generic "unsupported type for __hash__".
2015-05-12 22:46:02 +01:00
Paul Sokolovsky cf5b6f6974 objfun: Fix to stackless mode after recent refactor. 2015-04-25 01:43:45 +03:00
Damien George 044c473de2 py: Add %q format support to mp_[v]printf, and use it. 2015-04-16 14:30:16 +00:00
Damien George 7f9d1d6ab9 py: Overhaul and simplify printf/pfenv mechanism.
Previous to this patch the printing mechanism was a bit of a tangled
mess.  This patch attempts to consolidate printing into one interface.

All (non-debug) printing now uses the mp_print* family of functions,
mainly mp_printf.  All these functions take an mp_print_t structure as
their first argument, and this structure defines the printing backend
through the "print_strn" function of said structure.

Printing from the uPy core can reach the platform-defined print code via
two paths: either through mp_sys_stdout_obj (defined pert port) in
conjunction with mp_stream_write; or through the mp_plat_print structure
which uses the MP_PLAT_PRINT_STRN macro to define how string are printed
on the platform.  The former is only used when MICROPY_PY_IO is defined.

With this new scheme printing is generally more efficient (less layers
to go through, less arguments to pass), and, given an mp_print_t*
structure, one can call mp_print_str for efficiency instead of
mp_printf("%s", ...).  Code size is also reduced by around 200 bytes on
Thumb2 archs.
2015-04-16 14:30:16 +00:00
Damien George b1bbe966c4 py: Combine load_attr and store_attr type methods into one (attr).
This simplifies the API for objects and reduces code size (by around 400
bytes on Thumb2, and around 2k on x86).  Performance impact was measured
with Pystone score, but change was barely noticeable.
2015-04-11 16:54:37 +01:00
Damien George 4dea922610 py: Adjust some spaces in code style/format, purely for consistency. 2015-04-09 15:29:54 +00:00
Damien George 9988618e0e py: Implement full func arg passing for native emitter.
This patch gets full function argument passing working with native
emitter.  Includes named args, keyword args, default args, var args
and var keyword args.  Fully Python compliant.

It reuses the bytecode mp_setup_code_state function to do all the hard
work.  This function is slightly adjusted to accommodate native calls,
and the native emitter is forced a bit to emit similar prelude and
code-info as bytecode.
2015-04-07 22:43:28 +01:00
Damien George 12a5e17afb py: Add finer configuration of static funcs when not in stackless mode.
Also rename call_args_t to mp_call_args_t.
2015-04-02 22:56:58 +01:00
Paul Sokolovsky 332a909d44 vm: If there's no heap to call function in stackless manner, call via C stack. 2015-04-03 00:03:07 +03:00
Paul Sokolovsky 2039757b85 vm: Initial support for calling bytecode functions w/o C stack ("stackless"). 2015-04-03 00:03:07 +03:00
stijn 3cc17c69ff py: Allow retrieving a function's __name__.
Disabled by default.  Enabled on unix and stmhal ports.
2015-03-20 23:13:32 +00:00
Paul Sokolovsky 53e5e0fa28 py: Make old_globals part of mp_code_state structure.
Conceptually it is part of code state, so let it be allocated in the same way
as the rest of state.
2015-02-15 19:24:15 +03:00
Damien George 32f0b7942c py: Implement sdiv/udiv for inline Thumb assembler. 2015-02-13 10:43:05 +00:00
Damien George ff8dd3f486 py, unix: Allow to compile with -Wunused-parameter.
See issue #699.
2015-01-20 12:47:20 +00:00
Damien George d2d64f00fb py: Add "default" to switches to allow better code flow analysis.
This helps compiler produce smaller code.  Saves 124 bytes on stmhal and
bare-arm.
2015-01-14 21:32:42 +00:00
Damien George bbf5cd01e3 py: Allow to compile with -Wstrict-prototypes. 2015-01-12 22:45:35 +00:00
Damien George e233a55a29 py: Remove unnecessary BINARY_OP_EQUAL code that just checks pointers.
Previous patch c38dc3ccc7 allowed any
object to be compared with any other, using pointer comparison for a
fallback.  As such, existing code which checked for this case is no
longer needed.
2015-01-11 21:07:15 +00:00
Damien George 51dfcb4bb7 py: Move to guarded includes, everywhere in py/ core.
Addresses issue #1022.
2015-01-01 20:32:09 +00:00
Damien George 7860c2a68a py: Fix some macros defines; cleanup some includes. 2014-11-05 21:16:41 +00:00
Damien George 1084b0f9c2 py: Store bytecode arg names in bytecode (were in own array).
This saves a lot of RAM for 2 reasons:

1. For functions that don't have default values, var args or var kw
args (which is a large number of functions in the general case), the
mp_obj_fun_bc_t type now fits in 1 GC block (previously needed 2 because
of the extra pointer to point to the arg_names array).  So this saves 16
bytes per function (32 bytes on 64-bit machines).

2. Combining separate memory regions generally saves RAM because the
unused bytes at the end of the GC block are saved for 1 of the blocks
(since that block doesn't exist on its own anymore).  So generally this
saves 8 bytes per function.

Tested by importing lots of modules:

- 64-bit Linux gave about an 8% RAM saving for 86k of used RAM.
- pyboard gave about a 6% RAM saving for 31k of used RAM.
2014-10-25 20:23:13 +01:00
Damien George 39dc145478 py: Change [u]int to mp_[u]int_t in qstr.[ch], and some other places.
This should pretty much resolve issue #50.
2014-10-03 19:52:22 +01:00
Damien George a7329615eb py: Fix types, uint -> mp_uint_t. 2014-09-29 19:42:06 +01:00
Damien George eaaebf3291 stmhal: Initialise stack pointer correctly.
Stack is full descending and must be 8-byte aligned.  It must start off
pointing to just above the last byte of RAM.

Previously, stack started pointed to last byte of RAM (eg 0x2001ffff)
and so was not 8-byte aligned.  This caused a bug in combination with
alloca.

This patch also updates some debug printing code.

Addresses issue #872 (among many other undiscovered issues).
2014-09-23 10:59:05 +01:00
Damien George b534e1b9f1 py: Use variable length encoded uints in more places in bytecode.
Code-info size, block name, source name, n_state and n_exc_stack now use
variable length encoded uints.  This saves 7-9 bytes per bytecode
function for most functions.
2014-09-04 14:44:01 +01:00
Damien George ecc88e949c Change some parts of the core API to use mp_uint_t instead of uint/int.
Addressing issue #50, still some way to go yet.
2014-08-30 00:35:11 +01:00
Damien George 3c658a4e75 py: Fix bug where GC collected native/viper/asm function data.
Because (for Thumb) a function pointer has the LSB set, pointers to
dynamic functions in RAM (eg native, viper or asm functions) were not
being traced by the GC.  This patch is a comprehensive fix for this.

Addresses issue #820.
2014-08-24 16:28:17 +01:00
Damien George e6c0dff967 py: Viper can now store to global. 2014-08-15 23:47:59 +01:00
Damien George 2ac4af6946 py: Allow viper to have type annotations.
Viper functions can now be annotated with the type of their arguments
and return value.  Eg:

@micropython.viper
def f(x:int) -> int:
    return x + 1
2014-08-15 16:45:41 +01:00
Damien George 40f3c02682 Rename machine_(u)int_t to mp_(u)int_t.
See discussion in issue #50.
2014-07-03 13:25:24 +01:00
Paul Sokolovsky caa7334141 stackctrl: Add "mp_" prefix. 2014-07-01 02:14:08 +03:00
Paul Sokolovsky 23668698cb py: Add portable framework to query/check C stack usage.
Such mechanism is important to get stable Python functioning, because Python
function calling is handled with C stack. The idea is to sprinkle
STACK_CHECK() calls in places where there can be C recursion.

TODO: Add more STACK_CHECK()'s.
2014-06-27 00:03:55 +03:00
Paul Sokolovsky 0c0f446840 objfun: Remove no longer used mp_obj_fun_prepare_simple_args(). 2014-06-11 20:43:47 +03:00
Paul Sokolovsky 49df795d1d objfun: Factor out mp_setup_code_state() function to set up code_state object.
It needs to be reused for generator functions, too.
2014-06-11 20:43:47 +03:00
Damien George df896eceef Merge branch 'alloca' of github.com:marcusva/micropython into marcusva-alloca 2014-06-08 13:18:14 +01:00
Damien George 049a7a8153 py: Simplify function call of a bytecode object. 2014-06-08 00:37:40 +01:00
Damien George f0778a7ccb py: Implement default keyword only args.
Should finish addressing issue #524.
2014-06-07 22:01:00 +01:00
Damien George aabd83ea20 py: Merge mp_execute_bytecode into fun_bc_call.
This reduces stack usage by 16 words (64 bytes) for stmhal/ port.

See issue #640.
2014-06-07 14:16:08 +01:00
Marcus von Appen 0c90eb1658 - FreeBSD provides alloca() via stdlib.h, in contrast to Linux and Windows
- Move the includes for alloca() intp mpconfigport.h
2014-06-07 09:36:04 +02:00
Damien George fb510b3bf9 Rename bultins config variables to MICROPY_PY_BUILTINS_*.
This renames:
MICROPY_PY_FROZENSET -> MICROPY_PY_BUILTINS_FROZENSET
MICROPY_PY_PROPERTY -> MICROPY_PY_BUILTINS_PROPERTY
MICROPY_PY_SLICE -> MICROPY_PY_BUILTINS_SLICE
MICROPY_ENABLE_FLOAT -> MICROPY_PY_BUILTINS_FLOAT

See issue #35 for discussion.
2014-06-01 13:32:54 +01:00
Paul Sokolovsky b30a777ace objfun: Typo fixes in comments. 2014-05-31 02:24:47 +03:00
Damien George 6ac5dced24 py: Rename MP_OBJ_NOT_SUPPORTED to MP_OBJ_NULL.
See issue #608 for justification.
2014-05-21 19:42:43 +01:00
Paul Sokolovsky ab7bf28489 py: More const usage. 2014-05-17 11:20:10 +03:00
Paul Sokolovsky da9f0924ef py, unix: Add copyright for modules I worked closely on. 2014-05-13 18:41:25 +03:00
Damien George d0a5bf34f7 py: Tidy up returning NULL which should be MP_OBJ_NOT_SUPPORTED. 2014-05-10 13:55:11 +01:00
Damien George ccc85ea0da py: Combine native emitters to 1 glue function; distinguish viper.
This patch simplifies the glue between native emitter and runtime,
and handles viper code like inline assember: return values are
converted to Python objects.

Fixes issue #531.
2014-05-10 13:40:46 +01:00
Damien George 3417bc2f25 py: Rename byte_code to bytecode everywhere.
bytecode is the more widely used.  See issue #590.
2014-05-10 10:36:38 +01:00
Damien George 04b9147e15 Add license header to (almost) all files.
Blanket wide to all .c and .h files.  Some files originating from ST are
difficult to deal with (license wise) so it was left out of those.

Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
2014-05-03 23:27:38 +01:00
Paul Sokolovsky 7a14022604 Merge pull request #552 from stinos/mingw-alloca
py: Use <alloca.h> for alloca()
2014-05-03 14:39:47 +03:00
Paul Sokolovsky 418aca976c objclosure, objcell: Print detailed representation if was requested.
Well, it is bound to "detailed error reporting", but that's closest what we
have now without creating new entities.
2014-05-03 14:16:11 +03:00