head	1.2;
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	micropython-1-5-2-base:1.1.1.1 MICROPYTHON:1.1.1;
locks; strict;
comment	@ * @;


1.2
date	2026.10.15.05.28.37;	author agc;	state dead;
branches;
next	1.1;
commitid	aHLdC1EGCUYk7xZG;

1.1
date	2016.01.14.01.38.50;	author agc;	state Exp;
branches
	1.1.1.1;
next	;
commitid	Q8liT0v6zMF95QQy;

1.1.1.1
date	2016.01.14.01.38.50;	author agc;	state Exp;
branches;
next	;
commitid	Q8liT0v6zMF95QQy;


desc
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1.2
log
@Remove waaaay old micropython sources which haven't been relevant for 10 years
@
text
@/*
 * This file is part of the Micro Python project, http://micropython.org/
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2013, 2014 Damien P. George
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "py/mpconfig.h"
#include "py/misc.h"
#include "py/mpstate.h"

#if 0 // print debugging info
#define DEBUG_printf DEBUG_printf
#else // don't print debugging info
#define DEBUG_printf(...) (void)0
#endif

#if MICROPY_MEM_STATS
#define UPDATE_PEAK() { if (MP_STATE_MEM(current_bytes_allocated) > MP_STATE_MEM(peak_bytes_allocated)) MP_STATE_MEM(peak_bytes_allocated) = MP_STATE_MEM(current_bytes_allocated); }
#endif

#if MICROPY_ENABLE_GC
#include "py/gc.h"

// We redirect standard alloc functions to GC heap - just for the rest of
// this module. In the rest of micropython source, system malloc can be
// freely accessed - for interfacing with system and 3rd-party libs for
// example. On the other hand, some (e.g. bare-metal) ports may use GC
// heap as system heap, so, to avoid warnings, we do undef's first.
#undef malloc
#undef free
#undef realloc
#define malloc(b) gc_alloc((b), false)
#define malloc_with_finaliser(b) gc_alloc((b), true)
#define free gc_free
#define realloc(ptr, n) gc_realloc(ptr, n, true)
#define realloc_ext(ptr, n, mv) gc_realloc(ptr, n, mv)
#else
#define realloc_ext(ptr, n, mv) realloc(ptr, n)
#endif // MICROPY_ENABLE_GC

void *m_malloc(size_t num_bytes) {
    void *ptr = malloc(num_bytes);
    if (ptr == NULL && num_bytes != 0) {
        return m_malloc_fail(num_bytes);
    }
#if MICROPY_MEM_STATS
    MP_STATE_MEM(total_bytes_allocated) += num_bytes;
    MP_STATE_MEM(current_bytes_allocated) += num_bytes;
    UPDATE_PEAK();
#endif
    DEBUG_printf("malloc %d : %p\n", num_bytes, ptr);
    return ptr;
}

void *m_malloc_maybe(size_t num_bytes) {
    void *ptr = malloc(num_bytes);
#if MICROPY_MEM_STATS
    MP_STATE_MEM(total_bytes_allocated) += num_bytes;
    MP_STATE_MEM(current_bytes_allocated) += num_bytes;
    UPDATE_PEAK();
#endif
    DEBUG_printf("malloc %d : %p\n", num_bytes, ptr);
    return ptr;
}

#if MICROPY_ENABLE_FINALISER
void *m_malloc_with_finaliser(size_t num_bytes) {
    void *ptr = malloc_with_finaliser(num_bytes);
    if (ptr == NULL && num_bytes != 0) {
        return m_malloc_fail(num_bytes);
    }
#if MICROPY_MEM_STATS
    MP_STATE_MEM(total_bytes_allocated) += num_bytes;
    MP_STATE_MEM(current_bytes_allocated) += num_bytes;
    UPDATE_PEAK();
#endif
    DEBUG_printf("malloc %d : %p\n", num_bytes, ptr);
    return ptr;
}
#endif

void *m_malloc0(size_t num_bytes) {
    void *ptr = m_malloc(num_bytes);
    if (ptr == NULL && num_bytes != 0) {
        return m_malloc_fail(num_bytes);
    }
    memset(ptr, 0, num_bytes);
    return ptr;
}

#if MICROPY_MALLOC_USES_ALLOCATED_SIZE
void *m_realloc(void *ptr, size_t old_num_bytes, size_t new_num_bytes) {
#else
void *m_realloc(void *ptr, size_t new_num_bytes) {
#endif
    void *new_ptr = realloc(ptr, new_num_bytes);
    if (new_ptr == NULL && new_num_bytes != 0) {
        return m_malloc_fail(new_num_bytes);
    }
#if MICROPY_MEM_STATS
    // At first thought, "Total bytes allocated" should only grow,
    // after all, it's *total*. But consider for example 2K block
    // shrunk to 1K and then grown to 2K again. It's still 2K
    // allocated total. If we process only positive increments,
    // we'll count 3K.
    size_t diff = new_num_bytes - old_num_bytes;
    MP_STATE_MEM(total_bytes_allocated) += diff;
    MP_STATE_MEM(current_bytes_allocated) += diff;
    UPDATE_PEAK();
#endif
    DEBUG_printf("realloc %p, %d, %d : %p\n", ptr, old_num_bytes, new_num_bytes, new_ptr);
    return new_ptr;
}

#if MICROPY_MALLOC_USES_ALLOCATED_SIZE
void *m_realloc_maybe(void *ptr, size_t old_num_bytes, size_t new_num_bytes, bool allow_move) {
#else
void *m_realloc_maybe(void *ptr, size_t new_num_bytes, bool allow_move) {
#endif
    void *new_ptr = realloc_ext(ptr, new_num_bytes, allow_move);
#if MICROPY_MEM_STATS
    // At first thought, "Total bytes allocated" should only grow,
    // after all, it's *total*. But consider for example 2K block
    // shrunk to 1K and then grown to 2K again. It's still 2K
    // allocated total. If we process only positive increments,
    // we'll count 3K.
    // Also, don't count failed reallocs.
    if (!(new_ptr == NULL && new_num_bytes != 0)) {
        size_t diff = new_num_bytes - old_num_bytes;
        MP_STATE_MEM(total_bytes_allocated) += diff;
        MP_STATE_MEM(current_bytes_allocated) += diff;
        UPDATE_PEAK();
    }
#endif
    DEBUG_printf("realloc %p, %d, %d : %p\n", ptr, old_num_bytes, new_num_bytes, new_ptr);
    return new_ptr;
}

#if MICROPY_MALLOC_USES_ALLOCATED_SIZE
void m_free(void *ptr, size_t num_bytes) {
#else
void m_free(void *ptr) {
#endif
    free(ptr);
#if MICROPY_MEM_STATS
    MP_STATE_MEM(current_bytes_allocated) -= num_bytes;
#endif
    DEBUG_printf("free %p, %d\n", ptr, num_bytes);
}

#if MICROPY_MEM_STATS
size_t m_get_total_bytes_allocated(void) {
    return MP_STATE_MEM(total_bytes_allocated);
}

size_t m_get_current_bytes_allocated(void) {
    return MP_STATE_MEM(current_bytes_allocated);
}

size_t m_get_peak_bytes_allocated(void) {
    return MP_STATE_MEM(peak_bytes_allocated);
}
#endif
@


1.1
log
@Initial revision
@
text
@@


1.1.1.1
log
@Import micropython version 1.5.2 into othersrc.

Micropython is a python3 implementation that has been optimised for
micro-controllers and small embedded systems.  It also has a "unix"
port. It has an MIT license.

This is version 1.5.2 of micropython.

	MicroPython implements the entire Python 3.4 syntax (including
	exceptions, "with", "yield from", etc.).  The following core
	datatypes are provided:  str (including basic Unicode
	support), bytes, bytearray, tuple, list, dict, set, frozenset,
	array.array, collections.namedtuple, classes and instances. 
	Builtin modules include sys, time, and struct.  Note that only
	subset of Python 3.4 functionality implemented for the data
	types and modules.

This is the standard micropython source (version v1.5.2), which has been
adapted to use reachover infrastructure. At the present time, libffi
(from pkgsrc) is used. Alternative locations for libffi can be set
using the PKGSRC_PREFIX definition to make.

In the whole scheme of things, micropython is quite small:

	% size bin/micropython
	   text    data     bss     dec     hex filename
	 393495    1624    2208  397327   6100f bin/micropython
	%

and runs much as expected:

	% bin/micropython
	MicroPython v1.5.2 on 2016-01-13; linux version
	Use Ctrl-D to exit, Ctrl-E for paste mode
	>>> print("hello world")
	hello world
	>>> list(5 * x + y for x in range(10) for y in [4, 2, 1])
	[4, 2, 1, 9, 7, 6, 14, 12, 11, 19, 17, 16, 24, 22, 21, 29, 27, 26, 34, 32, 31, 39, 37, 36, 44, 42, 41, 49, 47, 46]
	>>>
	% python2.7
	Python 2.7.10 (default, Oct 17 2015, 17:55:29)
	[GCC 4.8.5] on netbsd7
	Type "help", "copyright", "credits" or "license" for more information.
	>>> print("hello world")
	hello world
	>>> list(5 * x + y for x in range(10) for y in [4, 2, 1])
	[4, 2, 1, 9, 7, 6, 14, 12, 11, 19, 17, 16, 24, 22, 21, 29, 27, 26, 34, 32, 31, 39, 37, 36, 44, 42, 41, 49, 47, 46]
	>>> ^D
	%

This (reachover) version runs all the tests which the gmake version does.

	% make t
	cd bin && make t
	cd /home/agc/local/micropython/bin/../dist/unix/../tests && env MICROPY_MICROPYTHON=/home/agc/local/micropython/bin/micropython ./run-tests
	pass  basics/0prelim.py
	pass  basics/andor.py
	pass  basics/array1.py
	pass  basics/array_add.py
	pass  basics/array_construct.py
	pass  basics/array_construct2.py
	...
	pass  unix/ffi_callback.py
	pass  unix/ffi_float.py
	pass  unix/ffi_float2.py
	474 tests performed (15812 individual testcases)
	474 tests passed
	5 tests skipped: cmd_showbc cmd_verbose machine1 machine_mem extra_coverage
	%

The sources are available from github:
	https://github.com/micropython/micropython

micropython release at:
	https://github.com/micropython/micropython/releases

Sources for 1.5.2 taken from:
	https://github.com/micropython/micropython/archive/v1.5.2.tar.gz

Alistair Crooks
agc@@netbsd.org
Wed Jan 13 17:15:30 PST 2016
@
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