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micropython/tools/mpy-tool.py

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#!/usr/bin/env python3
#
# This file is part of the MicroPython project, http://micropython.org/
#
# The MIT License (MIT)
#
# Copyright (c) 2016-2019 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.
# Python 2/3 compatibility code
from __future__ import print_function
import platform
if platform.python_version_tuple()[0] == "2":
from binascii import hexlify as hexlify_py2
str_cons = lambda val, enc=None: str(val)
bytes_cons = lambda val, enc=None: bytearray(val)
is_str_type = lambda o: isinstance(o, str)
is_bytes_type = lambda o: type(o) is bytearray
is_int_type = lambda o: isinstance(o, int) or isinstance(o, long) # noqa: F821
def hexlify_to_str(b):
x = hexlify_py2(b)
return ":".join(x[i : i + 2] for i in range(0, len(x), 2))
else:
from binascii import hexlify
str_cons = str
bytes_cons = bytes
is_str_type = lambda o: isinstance(o, str)
is_bytes_type = lambda o: isinstance(o, bytes)
is_int_type = lambda o: isinstance(o, int)
def hexlify_to_str(b):
return str(hexlify(b, ":"), "ascii")
# end compatibility code
import sys
import struct
sys.path.append(sys.path[0] + "/../py")
import makeqstrdata as qstrutil
# Threshold of str length below which it will be turned into a qstr when freezing.
# This helps to reduce frozen code size because qstrs are more efficient to encode
# as objects than full mp_obj_str_t instances.
PERSISTENT_STR_INTERN_THRESHOLD = 25
class MPYReadError(Exception):
def __init__(self, filename, msg):
self.filename = filename
self.msg = msg
def __str__(self):
return "%s: %s" % (self.filename, self.msg)
class FreezeError(Exception):
def __init__(self, rawcode, msg):
self.rawcode = rawcode
self.msg = msg
def __str__(self):
return "error while freezing %s: %s" % (self.rawcode.source_file, self.msg)
class Config:
MPY_VERSION = 6
MPY_SUB_VERSION = 3
MICROPY_LONGINT_IMPL_NONE = 0
MICROPY_LONGINT_IMPL_LONGLONG = 1
MICROPY_LONGINT_IMPL_MPZ = 2
config = Config()
MP_CODE_BYTECODE = 2
MP_CODE_NATIVE_PY = 3
MP_CODE_NATIVE_VIPER = 4
MP_CODE_NATIVE_ASM = 5
MP_NATIVE_ARCH_NONE = 0
MP_NATIVE_ARCH_X86 = 1
MP_NATIVE_ARCH_X64 = 2
MP_NATIVE_ARCH_ARMV6 = 3
MP_NATIVE_ARCH_ARMV6M = 4
MP_NATIVE_ARCH_ARMV7M = 5
MP_NATIVE_ARCH_ARMV7EM = 6
MP_NATIVE_ARCH_ARMV7EMSP = 7
MP_NATIVE_ARCH_ARMV7EMDP = 8
MP_NATIVE_ARCH_XTENSA = 9
MP_NATIVE_ARCH_XTENSAWIN = 10
MP_NATIVE_ARCH_RV32IMC = 11
MP_PERSISTENT_OBJ_FUN_TABLE = 0
MP_PERSISTENT_OBJ_NONE = 1
MP_PERSISTENT_OBJ_FALSE = 2
MP_PERSISTENT_OBJ_TRUE = 3
MP_PERSISTENT_OBJ_ELLIPSIS = 4
MP_PERSISTENT_OBJ_STR = 5
MP_PERSISTENT_OBJ_BYTES = 6
MP_PERSISTENT_OBJ_INT = 7
MP_PERSISTENT_OBJ_FLOAT = 8
MP_PERSISTENT_OBJ_COMPLEX = 9
MP_PERSISTENT_OBJ_TUPLE = 10
MP_SCOPE_FLAG_GENERATOR = 0x01
MP_SCOPE_FLAG_VIPERRELOC = 0x10
MP_SCOPE_FLAG_VIPERRODATA = 0x20
MP_SCOPE_FLAG_VIPERBSS = 0x40
MP_BC_MASK_EXTRA_BYTE = 0x9E
MP_BC_FORMAT_BYTE = 0
MP_BC_FORMAT_QSTR = 1
MP_BC_FORMAT_VAR_UINT = 2
MP_BC_FORMAT_OFFSET = 3
mp_unary_op_method_name = (
"__pos__",
"__neg__",
"__invert__",
"<not>",
)
mp_binary_op_method_name = (
"__lt__",
"__gt__",
"__eq__",
"__le__",
"__ge__",
"__ne__",
"<in>",
"<is>",
"<exception match>",
"__ior__",
"__ixor__",
"__iand__",
"__ilshift__",
"__irshift__",
"__iadd__",
"__isub__",
"__imul__",
"__imatmul__",
"__ifloordiv__",
"__itruediv__",
"__imod__",
"__ipow__",
"__or__",
"__xor__",
"__and__",
"__lshift__",
"__rshift__",
"__add__",
"__sub__",
"__mul__",
"__matmul__",
"__floordiv__",
"__truediv__",
"__mod__",
"__pow__",
)
class Opcode:
# fmt: off
# Load, Store, Delete, Import, Make, Build, Unpack, Call, Jump, Exception, For, sTack, Return, Yield, Op
MP_BC_BASE_RESERVED = (0x00) # ----------------
MP_BC_BASE_QSTR_O = (0x10) # LLLLLLSSSDDII---
MP_BC_BASE_VINT_E = (0x20) # MMLLLLSSDDBBBBBB
MP_BC_BASE_VINT_O = (0x30) # UUMMCCCC--------
MP_BC_BASE_JUMP_E = (0x40) # J-JJJJJEEEEF----
MP_BC_BASE_BYTE_O = (0x50) # LLLLSSDTTTTTEEFF
MP_BC_BASE_BYTE_E = (0x60) # --BREEEYYI------
MP_BC_LOAD_CONST_SMALL_INT_MULTI = (0x70) # LLLLLLLLLLLLLLLL
# = (0x80) # LLLLLLLLLLLLLLLL
# = (0x90) # LLLLLLLLLLLLLLLL
# = (0xa0) # LLLLLLLLLLLLLLLL
MP_BC_LOAD_FAST_MULTI = (0xb0) # LLLLLLLLLLLLLLLL
MP_BC_STORE_FAST_MULTI = (0xc0) # SSSSSSSSSSSSSSSS
MP_BC_UNARY_OP_MULTI = (0xd0) # OOOOOOO
MP_BC_BINARY_OP_MULTI = (0xd7) # OOOOOOOOO
# = (0xe0) # OOOOOOOOOOOOOOOO
# = (0xf0) # OOOOOOOOOO------
MP_BC_LOAD_CONST_SMALL_INT_MULTI_NUM = 64
MP_BC_LOAD_CONST_SMALL_INT_MULTI_EXCESS = 16
MP_BC_LOAD_FAST_MULTI_NUM = 16
MP_BC_STORE_FAST_MULTI_NUM = 16
MP_BC_UNARY_OP_MULTI_NUM = 4 # MP_UNARY_OP_NUM_BYTECODE
MP_BC_BINARY_OP_MULTI_NUM = 35 # MP_BINARY_OP_NUM_BYTECODE
MP_BC_LOAD_CONST_FALSE = (MP_BC_BASE_BYTE_O + 0x00)
MP_BC_LOAD_CONST_NONE = (MP_BC_BASE_BYTE_O + 0x01)
MP_BC_LOAD_CONST_TRUE = (MP_BC_BASE_BYTE_O + 0x02)
MP_BC_LOAD_CONST_SMALL_INT = (MP_BC_BASE_VINT_E + 0x02) # signed var-int
MP_BC_LOAD_CONST_STRING = (MP_BC_BASE_QSTR_O + 0x00) # qstr
MP_BC_LOAD_CONST_OBJ = (MP_BC_BASE_VINT_E + 0x03) # ptr
MP_BC_LOAD_NULL = (MP_BC_BASE_BYTE_O + 0x03)
MP_BC_LOAD_FAST_N = (MP_BC_BASE_VINT_E + 0x04) # uint
MP_BC_LOAD_DEREF = (MP_BC_BASE_VINT_E + 0x05) # uint
MP_BC_LOAD_NAME = (MP_BC_BASE_QSTR_O + 0x01) # qstr
MP_BC_LOAD_GLOBAL = (MP_BC_BASE_QSTR_O + 0x02) # qstr
MP_BC_LOAD_ATTR = (MP_BC_BASE_QSTR_O + 0x03) # qstr
MP_BC_LOAD_METHOD = (MP_BC_BASE_QSTR_O + 0x04) # qstr
MP_BC_LOAD_SUPER_METHOD = (MP_BC_BASE_QSTR_O + 0x05) # qstr
MP_BC_LOAD_BUILD_CLASS = (MP_BC_BASE_BYTE_O + 0x04)
MP_BC_LOAD_SUBSCR = (MP_BC_BASE_BYTE_O + 0x05)
MP_BC_STORE_FAST_N = (MP_BC_BASE_VINT_E + 0x06) # uint
MP_BC_STORE_DEREF = (MP_BC_BASE_VINT_E + 0x07) # uint
MP_BC_STORE_NAME = (MP_BC_BASE_QSTR_O + 0x06) # qstr
MP_BC_STORE_GLOBAL = (MP_BC_BASE_QSTR_O + 0x07) # qstr
MP_BC_STORE_ATTR = (MP_BC_BASE_QSTR_O + 0x08) # qstr
MP_BC_STORE_SUBSCR = (MP_BC_BASE_BYTE_O + 0x06)
MP_BC_DELETE_FAST = (MP_BC_BASE_VINT_E + 0x08) # uint
MP_BC_DELETE_DEREF = (MP_BC_BASE_VINT_E + 0x09) # uint
MP_BC_DELETE_NAME = (MP_BC_BASE_QSTR_O + 0x09) # qstr
MP_BC_DELETE_GLOBAL = (MP_BC_BASE_QSTR_O + 0x0a) # qstr
MP_BC_DUP_TOP = (MP_BC_BASE_BYTE_O + 0x07)
MP_BC_DUP_TOP_TWO = (MP_BC_BASE_BYTE_O + 0x08)
MP_BC_POP_TOP = (MP_BC_BASE_BYTE_O + 0x09)
MP_BC_ROT_TWO = (MP_BC_BASE_BYTE_O + 0x0a)
MP_BC_ROT_THREE = (MP_BC_BASE_BYTE_O + 0x0b)
MP_BC_UNWIND_JUMP = (MP_BC_BASE_JUMP_E + 0x00) # signed relative bytecode offset; then a byte
MP_BC_JUMP = (MP_BC_BASE_JUMP_E + 0x02) # signed relative bytecode offset
MP_BC_POP_JUMP_IF_TRUE = (MP_BC_BASE_JUMP_E + 0x03) # signed relative bytecode offset
MP_BC_POP_JUMP_IF_FALSE = (MP_BC_BASE_JUMP_E + 0x04) # signed relative bytecode offset
MP_BC_JUMP_IF_TRUE_OR_POP = (MP_BC_BASE_JUMP_E + 0x05) # unsigned relative bytecode offset
MP_BC_JUMP_IF_FALSE_OR_POP = (MP_BC_BASE_JUMP_E + 0x06) # unsigned relative bytecode offset
MP_BC_SETUP_WITH = (MP_BC_BASE_JUMP_E + 0x07) # unsigned relative bytecode offset
MP_BC_SETUP_EXCEPT = (MP_BC_BASE_JUMP_E + 0x08) # unsigned relative bytecode offset
MP_BC_SETUP_FINALLY = (MP_BC_BASE_JUMP_E + 0x09) # unsigned relative bytecode offset
MP_BC_POP_EXCEPT_JUMP = (MP_BC_BASE_JUMP_E + 0x0a) # unsigned relative bytecode offset
MP_BC_FOR_ITER = (MP_BC_BASE_JUMP_E + 0x0b) # unsigned relative bytecode offset
MP_BC_WITH_CLEANUP = (MP_BC_BASE_BYTE_O + 0x0c)
MP_BC_END_FINALLY = (MP_BC_BASE_BYTE_O + 0x0d)
MP_BC_GET_ITER = (MP_BC_BASE_BYTE_O + 0x0e)
MP_BC_GET_ITER_STACK = (MP_BC_BASE_BYTE_O + 0x0f)
MP_BC_BUILD_TUPLE = (MP_BC_BASE_VINT_E + 0x0a) # uint
MP_BC_BUILD_LIST = (MP_BC_BASE_VINT_E + 0x0b) # uint
MP_BC_BUILD_MAP = (MP_BC_BASE_VINT_E + 0x0c) # uint
MP_BC_STORE_MAP = (MP_BC_BASE_BYTE_E + 0x02)
MP_BC_BUILD_SET = (MP_BC_BASE_VINT_E + 0x0d) # uint
MP_BC_BUILD_SLICE = (MP_BC_BASE_VINT_E + 0x0e) # uint
MP_BC_STORE_COMP = (MP_BC_BASE_VINT_E + 0x0f) # uint
MP_BC_UNPACK_SEQUENCE = (MP_BC_BASE_VINT_O + 0x00) # uint
MP_BC_UNPACK_EX = (MP_BC_BASE_VINT_O + 0x01) # uint
MP_BC_RETURN_VALUE = (MP_BC_BASE_BYTE_E + 0x03)
MP_BC_RAISE_LAST = (MP_BC_BASE_BYTE_E + 0x04)
MP_BC_RAISE_OBJ = (MP_BC_BASE_BYTE_E + 0x05)
MP_BC_RAISE_FROM = (MP_BC_BASE_BYTE_E + 0x06)
MP_BC_YIELD_VALUE = (MP_BC_BASE_BYTE_E + 0x07)
MP_BC_YIELD_FROM = (MP_BC_BASE_BYTE_E + 0x08)
MP_BC_MAKE_FUNCTION = (MP_BC_BASE_VINT_O + 0x02) # uint
MP_BC_MAKE_FUNCTION_DEFARGS = (MP_BC_BASE_VINT_O + 0x03) # uint
MP_BC_MAKE_CLOSURE = (MP_BC_BASE_VINT_E + 0x00) # uint; extra byte
MP_BC_MAKE_CLOSURE_DEFARGS = (MP_BC_BASE_VINT_E + 0x01) # uint; extra byte
MP_BC_CALL_FUNCTION = (MP_BC_BASE_VINT_O + 0x04) # uint
MP_BC_CALL_FUNCTION_VAR_KW = (MP_BC_BASE_VINT_O + 0x05) # uint
MP_BC_CALL_METHOD = (MP_BC_BASE_VINT_O + 0x06) # uint
MP_BC_CALL_METHOD_VAR_KW = (MP_BC_BASE_VINT_O + 0x07) # uint
MP_BC_IMPORT_NAME = (MP_BC_BASE_QSTR_O + 0x0b) # qstr
MP_BC_IMPORT_FROM = (MP_BC_BASE_QSTR_O + 0x0c) # qstr
MP_BC_IMPORT_STAR = (MP_BC_BASE_BYTE_E + 0x09)
# fmt: on
# Create sets of related opcodes.
ALL_OFFSET_SIGNED = (
MP_BC_UNWIND_JUMP,
MP_BC_JUMP,
MP_BC_POP_JUMP_IF_TRUE,
MP_BC_POP_JUMP_IF_FALSE,
)
# Create a dict mapping opcode value to opcode name.
mapping = ["unknown" for _ in range(256)]
for op_name in list(locals()):
if op_name.startswith("MP_BC_"):
mapping[locals()[op_name]] = op_name[len("MP_BC_") :]
for i in range(MP_BC_LOAD_CONST_SMALL_INT_MULTI_NUM):
name = "LOAD_CONST_SMALL_INT %d" % (i - MP_BC_LOAD_CONST_SMALL_INT_MULTI_EXCESS)
mapping[MP_BC_LOAD_CONST_SMALL_INT_MULTI + i] = name
for i in range(MP_BC_LOAD_FAST_MULTI_NUM):
mapping[MP_BC_LOAD_FAST_MULTI + i] = "LOAD_FAST %d" % i
for i in range(MP_BC_STORE_FAST_MULTI_NUM):
mapping[MP_BC_STORE_FAST_MULTI + i] = "STORE_FAST %d" % i
for i in range(MP_BC_UNARY_OP_MULTI_NUM):
mapping[MP_BC_UNARY_OP_MULTI + i] = "UNARY_OP %d %s" % (i, mp_unary_op_method_name[i])
for i in range(MP_BC_BINARY_OP_MULTI_NUM):
mapping[MP_BC_BINARY_OP_MULTI + i] = "BINARY_OP %d %s" % (i, mp_binary_op_method_name[i])
def __init__(self, offset, fmt, opcode_byte, arg, extra_arg):
self.offset = offset
self.fmt = fmt
self.opcode_byte = opcode_byte
self.arg = arg
self.extra_arg = extra_arg
# This definition of a small int covers all possible targets, in the sense that every
# target can encode as a small int, an integer that passes this test. The minimum is set
# by MICROPY_OBJ_REPR_B on a 16-bit machine, where there are 14 bits for the small int.
def mp_small_int_fits(i):
return -0x2000 <= i <= 0x1FFF
def mp_encode_uint(val, signed=False):
encoded = bytearray([val & 0x7F])
val >>= 7
while val != 0 and val != -1:
encoded.insert(0, 0x80 | (val & 0x7F))
val >>= 7
if signed:
if val == -1 and encoded[0] & 0x40 == 0:
encoded.insert(0, 0xFF)
elif val == 0 and encoded[0] & 0x40 != 0:
encoded.insert(0, 0x80)
return encoded
def mp_opcode_decode(bytecode, ip):
opcode = bytecode[ip]
ip_start = ip
f = (0x000003A4 >> (2 * ((opcode) >> 4))) & 3
ip += 1
arg = None
extra_arg = None
if f in (MP_BC_FORMAT_QSTR, MP_BC_FORMAT_VAR_UINT):
arg = bytecode[ip] & 0x7F
if opcode == Opcode.MP_BC_LOAD_CONST_SMALL_INT and arg & 0x40 != 0:
arg |= -1 << 7
while bytecode[ip] & 0x80 != 0:
ip += 1
arg = arg << 7 | bytecode[ip] & 0x7F
ip += 1
elif f == MP_BC_FORMAT_OFFSET:
if bytecode[ip] & 0x80 == 0:
arg = bytecode[ip]
ip += 1
if opcode in Opcode.ALL_OFFSET_SIGNED:
arg -= 0x40
else:
arg = bytecode[ip] & 0x7F | bytecode[ip + 1] << 7
ip += 2
if opcode in Opcode.ALL_OFFSET_SIGNED:
arg -= 0x4000
if opcode & MP_BC_MASK_EXTRA_BYTE == 0:
extra_arg = bytecode[ip]
ip += 1
return f, ip - ip_start, arg, extra_arg
def mp_opcode_encode(opcode):
overflow = False
encoded = bytearray([opcode.opcode_byte])
if opcode.fmt in (MP_BC_FORMAT_QSTR, MP_BC_FORMAT_VAR_UINT):
signed = opcode.opcode_byte == Opcode.MP_BC_LOAD_CONST_SMALL_INT
encoded.extend(mp_encode_uint(opcode.arg, signed))
elif opcode.fmt == MP_BC_FORMAT_OFFSET:
is_signed = opcode.opcode_byte in Opcode.ALL_OFFSET_SIGNED
# The -2 accounts for this jump opcode taking 2 bytes (at least).
bytecode_offset = opcode.target.offset - opcode.offset - 2
# Check if the bytecode_offset is small enough to use a 1-byte encoding.
if (is_signed and -64 <= bytecode_offset <= 63) or (
not is_signed and bytecode_offset <= 127
):
# Use a 1-byte jump offset.
if is_signed:
bytecode_offset += 0x40
overflow = not (0 <= bytecode_offset <= 0x7F)
encoded.append(bytecode_offset & 0x7F)
else:
bytecode_offset -= 1
if is_signed:
bytecode_offset += 0x4000
overflow = not (0 <= bytecode_offset <= 0x7FFF)
encoded.append(0x80 | (bytecode_offset & 0x7F))
encoded.append((bytecode_offset >> 7) & 0xFF)
if opcode.extra_arg is not None:
encoded.append(opcode.extra_arg)
return overflow, encoded
def read_prelude_sig(read_byte):
z = read_byte()
# xSSSSEAA
S = (z >> 3) & 0xF
E = (z >> 2) & 0x1
F = 0
A = z & 0x3
K = 0
D = 0
n = 0
while z & 0x80:
z = read_byte()
# xFSSKAED
S |= (z & 0x30) << (2 * n)
E |= (z & 0x02) << n
F |= ((z & 0x40) >> 6) << n
A |= (z & 0x4) << n
K |= ((z & 0x08) >> 3) << n
D |= (z & 0x1) << n
n += 1
S += 1
return S, E, F, A, K, D
def read_prelude_size(read_byte):
I = 0
C = 0
n = 0
while True:
z = read_byte()
# xIIIIIIC
I |= ((z & 0x7E) >> 1) << (6 * n)
C |= (z & 1) << n
if not (z & 0x80):
break
n += 1
return I, C
# See py/bc.h:MP_BC_PRELUDE_SIZE_ENCODE macro.
def encode_prelude_size(I, C):
# Encode bit-wise as: xIIIIIIC
encoded = bytearray()
while True:
z = (I & 0x3F) << 1 | (C & 1)
C >>= 1
I >>= 6
if C | I:
z |= 0x80
encoded.append(z)
if not C | I:
return encoded
def extract_prelude(bytecode, ip):
def local_read_byte():
b = bytecode[ip_ref[0]]
ip_ref[0] += 1
return b
ip_ref = [ip] # to close over ip in Python 2 and 3
# Read prelude signature.
(
n_state,
n_exc_stack,
scope_flags,
n_pos_args,
n_kwonly_args,
n_def_pos_args,
) = read_prelude_sig(local_read_byte)
offset_prelude_size = ip_ref[0]
# Read prelude size.
n_info, n_cell = read_prelude_size(local_read_byte)
offset_source_info = ip_ref[0]
# Extract simple_name and argument qstrs (var uints).
args = []
for arg_num in range(1 + n_pos_args + n_kwonly_args):
value = 0
while True:
b = local_read_byte()
value = (value << 7) | (b & 0x7F)
if b & 0x80 == 0:
break
args.append(value)
offset_line_info = ip_ref[0]
offset_closure_info = offset_source_info + n_info
offset_opcodes = offset_source_info + n_info + n_cell
return (
offset_prelude_size,
offset_source_info,
offset_line_info,
offset_closure_info,
offset_opcodes,
(n_state, n_exc_stack, scope_flags, n_pos_args, n_kwonly_args, n_def_pos_args),
(n_info, n_cell),
args,
)
class QStrType:
def __init__(self, str):
self.str = str
self.qstr_esc = qstrutil.qstr_escape(self.str)
self.qstr_id = "MP_QSTR_" + self.qstr_esc
class GlobalQStrList:
def __init__(self):
# Initialise global list of qstrs with static qstrs
self.qstrs = [None] # MP_QSTRnull should never be referenced
for n in qstrutil.static_qstr_list:
self.qstrs.append(QStrType(n))
def add(self, s):
q = QStrType(s)
self.qstrs.append(q)
return q
def get_by_index(self, i):
return self.qstrs[i]
def find_by_str(self, s):
for q in self.qstrs:
if q is not None and q.str == s:
return q
return None
class MPFunTable:
def __repr__(self):
return "mp_fun_table"
class CompiledModule:
def __init__(
self,
mpy_source_file,
mpy_segments,
header,
qstr_table,
obj_table,
raw_code,
qstr_table_file_offset,
obj_table_file_offset,
raw_code_file_offset,
escaped_name,
):
self.mpy_source_file = mpy_source_file
self.mpy_segments = mpy_segments
self.source_file = qstr_table[0]
self.header = header
self.qstr_table = qstr_table
self.obj_table = obj_table
self.raw_code = raw_code
self.qstr_table_file_offset = qstr_table_file_offset
self.obj_table_file_offset = obj_table_file_offset
self.raw_code_file_offset = raw_code_file_offset
self.escaped_name = escaped_name
def hexdump(self):
with open(self.mpy_source_file, "rb") as f:
WIDTH = 16
COL_OFF = "\033[0m"
COL_TABLE = (
("", ""), # META
("\033[0;31m", "\033[0;91m"), # QSTR
("\033[0;32m", "\033[0;92m"), # OBJ
("\033[0;34m", "\033[0;94m"), # CODE
)
cur_col = ""
cur_col_index = 0
offset = 0
segment_index = 0
while True:
data = bytes_cons(f.read(WIDTH))
if not data:
break
# Print out the hex dump of this line of data.
line_hex = cur_col
line_chr = cur_col
line_comment = ""
for i in range(len(data)):
# Determine the colour of the data, if any, and the line comment.
while segment_index < len(self.mpy_segments):
if offset + i == self.mpy_segments[segment_index].start:
cur_col = COL_TABLE[self.mpy_segments[segment_index].kind][
cur_col_index
]
cur_col_index = 1 - cur_col_index
line_hex += cur_col
line_chr += cur_col
line_comment += " %s%s%s" % (
cur_col,
self.mpy_segments[segment_index].name,
COL_OFF,
)
if offset + i == self.mpy_segments[segment_index].end:
cur_col = ""
line_hex += COL_OFF
line_chr += COL_OFF
segment_index += 1
else:
break
# Add to the hex part of the line.
if i % 2 == 0:
line_hex += " "
line_hex += "%02x" % data[i]
# Add to the characters part of the line.
if 0x20 <= data[i] <= 0x7E:
line_chr += "%s" % chr(data[i])
else:
line_chr += "."
# Print out this line.
if cur_col:
line_hex += COL_OFF
line_chr += COL_OFF
pad = " " * ((WIDTH - len(data)) * 5 // 2)
print("%08x:%s%s %s %s" % (offset, line_hex, pad, line_chr, line_comment))
offset += WIDTH
def disassemble(self):
print("mpy_source_file:", self.mpy_source_file)
print("source_file:", self.source_file.str)
print("header:", hexlify_to_str(self.header))
print("qstr_table[%u]:" % len(self.qstr_table))
for q in self.qstr_table:
print(" %s" % q.str)
print("obj_table:", self.obj_table)
self.raw_code.disassemble()
def freeze(self, compiled_module_index):
print()
print("/" * 80)
print("// frozen module %s" % self.escaped_name)
print("// - original source file: %s" % self.mpy_source_file)
print("// - frozen file name: %s" % self.source_file.str)
print("// - .mpy header: %s" % ":".join("%02x" % b for b in self.header))
print()
self.raw_code.freeze()
print()
self.freeze_constants()
print()
print("static const mp_frozen_module_t frozen_module_%s = {" % self.escaped_name)
print(" .constants = {")
if len(self.qstr_table):
print(
" .qstr_table = (qstr_short_t *)&const_qstr_table_data_%s,"
% self.escaped_name
)
else:
print(" .qstr_table = NULL,")
if len(self.obj_table):
print(" .obj_table = (mp_obj_t *)&const_obj_table_data_%s," % self.escaped_name)
else:
print(" .obj_table = NULL,")
print(" },")
print(" .proto_fun = &proto_fun_%s," % self.raw_code.escaped_name)
print("};")
def freeze_constant_obj(self, obj_name, obj):
global const_str_content, const_int_content, const_obj_content
if isinstance(obj, MPFunTable):
return "&mp_fun_table"
elif obj is None:
return "MP_ROM_NONE"
elif obj is False:
return "MP_ROM_FALSE"
elif obj is True:
return "MP_ROM_TRUE"
elif obj is Ellipsis:
return "MP_ROM_PTR(&mp_const_ellipsis_obj)"
elif is_str_type(obj) or is_bytes_type(obj):
if len(obj) == 0:
if is_str_type(obj):
return "MP_ROM_QSTR(MP_QSTR_)"
else:
return "MP_ROM_PTR(&mp_const_empty_bytes_obj)"
if is_str_type(obj):
q = global_qstrs.find_by_str(obj)
if q:
return "MP_ROM_QSTR(%s)" % q.qstr_id
obj = bytes_cons(obj, "utf8")
obj_type = "mp_type_str"
else:
obj_type = "mp_type_bytes"
print(
'static const mp_obj_str_t %s = {{&%s}, %u, %u, (const byte*)"%s"};'
% (
obj_name,
obj_type,
qstrutil.compute_hash(obj, config.MICROPY_QSTR_BYTES_IN_HASH),
len(obj),
"".join(("\\x%02x" % b) for b in obj),
)
)
const_str_content += len(obj)
const_obj_content += 4 * 4
return "MP_ROM_PTR(&%s)" % obj_name
elif is_int_type(obj):
if mp_small_int_fits(obj):
# Encode directly as a small integer object.
return "MP_ROM_INT(%d)" % obj
elif config.MICROPY_LONGINT_IMPL == config.MICROPY_LONGINT_IMPL_NONE:
raise FreezeError(self, "target does not support long int")
elif config.MICROPY_LONGINT_IMPL == config.MICROPY_LONGINT_IMPL_LONGLONG:
print("static const mp_obj_int_t %s = {{&mp_type_int}, %d};" % (obj_name, obj))
return "MP_ROM_PTR(&%s)" % obj_name
elif config.MICROPY_LONGINT_IMPL == config.MICROPY_LONGINT_IMPL_MPZ:
neg = 0
if obj < 0:
obj = -obj
neg = 1
bits_per_dig = config.MPZ_DIG_SIZE
digs = []
z = obj
while z:
digs.append(z & ((1 << bits_per_dig) - 1))
z >>= bits_per_dig
ndigs = len(digs)
digs = ",".join(("%#x" % d) for d in digs)
print(
"static const mp_obj_int_t %s = {{&mp_type_int}, "
"{.neg=%u, .fixed_dig=1, .alloc=%u, .len=%u, .dig=(uint%u_t*)(const uint%u_t[]){%s}}};"
% (obj_name, neg, ndigs, ndigs, bits_per_dig, bits_per_dig, digs)
)
const_int_content += (digs.count(",") + 1) * bits_per_dig // 8
const_obj_content += 4 * 4
return "MP_ROM_PTR(&%s)" % obj_name
elif isinstance(obj, float):
macro_name = "%s_macro" % obj_name
print(
"#if MICROPY_OBJ_REPR == MICROPY_OBJ_REPR_A || MICROPY_OBJ_REPR == MICROPY_OBJ_REPR_B"
)
print(
"static const mp_obj_float_t %s = {{&mp_type_float}, (mp_float_t)%.16g};"
% (obj_name, obj)
)
print("#define %s MP_ROM_PTR(&%s)" % (macro_name, obj_name))
print("#elif MICROPY_OBJ_REPR == MICROPY_OBJ_REPR_C")
n = struct.unpack("<I", struct.pack("<f", obj))[0]
n = ((n & ~0x3) | 2) + 0x80800000
print("#define %s ((mp_rom_obj_t)(0x%08x))" % (macro_name, n))
print("#elif MICROPY_OBJ_REPR == MICROPY_OBJ_REPR_D")
n = struct.unpack("<Q", struct.pack("<d", obj))[0]
n += 0x8004000000000000
print("#define %s ((mp_rom_obj_t)(0x%016x))" % (macro_name, n))
print("#endif")
const_obj_content += 3 * 4
return macro_name
elif isinstance(obj, complex):
print(
"static const mp_obj_complex_t %s = {{&mp_type_complex}, (mp_float_t)%.16g, (mp_float_t)%.16g};"
% (obj_name, obj.real, obj.imag)
)
return "MP_ROM_PTR(&%s)" % obj_name
elif type(obj) is tuple:
if len(obj) == 0:
return "MP_ROM_PTR(&mp_const_empty_tuple_obj)"
else:
obj_refs = []
for i, sub_obj in enumerate(obj):
sub_obj_name = "%s_%u" % (obj_name, i)
obj_refs.append(self.freeze_constant_obj(sub_obj_name, sub_obj))
print(
"static const mp_rom_obj_tuple_t %s = {{&mp_type_tuple}, %d, {"
% (obj_name, len(obj))
)
for ref in obj_refs:
print(" %s," % ref)
print("}};")
return "MP_ROM_PTR(&%s)" % obj_name
else:
raise FreezeError(self, "freezing of object %r is not implemented" % (obj,))
def freeze_constants(self):
if len(self.qstr_table):
print(
"static const qstr_short_t const_qstr_table_data_%s[%u] = {"
% (self.escaped_name, len(self.qstr_table))
)
for q in self.qstr_table:
print(" %s," % q.qstr_id)
print("};")
if not len(self.obj_table):
return
# generate constant objects
print()
print("// constants")
obj_refs = []
for i, obj in enumerate(self.obj_table):
obj_name = "const_obj_%s_%u" % (self.escaped_name, i)
obj_refs.append(self.freeze_constant_obj(obj_name, obj))
# generate constant table
print()
print("// constant table")
print(
"static const mp_rom_obj_t const_obj_table_data_%s[%u] = {"
% (self.escaped_name, len(self.obj_table))
)
for ref in obj_refs:
print(" %s," % ref)
print("};")
global const_table_ptr_content
const_table_ptr_content += len(self.obj_table)
class RawCode(object):
# a set of all escaped names, to make sure they are unique
escaped_names = set()
# convert code kind number to string
code_kind_str = {
MP_CODE_BYTECODE: "MP_CODE_BYTECODE",
MP_CODE_NATIVE_PY: "MP_CODE_NATIVE_PY",
MP_CODE_NATIVE_VIPER: "MP_CODE_NATIVE_VIPER",
MP_CODE_NATIVE_ASM: "MP_CODE_NATIVE_ASM",
}
def __init__(self, parent_name, qstr_table, fun_data, prelude_offset, code_kind):
self.qstr_table = qstr_table
self.fun_data = fun_data
self.prelude_offset = prelude_offset
self.code_kind = code_kind
if code_kind in (MP_CODE_BYTECODE, MP_CODE_NATIVE_PY):
(
self.offset_prelude_size,
self.offset_source_info,
self.offset_line_info,
self.offset_closure_info,
self.offset_opcodes,
self.prelude_signature,
self.prelude_size,
self.names,
) = extract_prelude(self.fun_data, prelude_offset)
self.scope_flags = self.prelude_signature[2]
self.n_pos_args = self.prelude_signature[3]
self.simple_name = self.qstr_table[self.names[0]]
else:
self.simple_name = self.qstr_table[0]
escaped_name = parent_name + "_" + self.simple_name.qstr_esc
# make sure the escaped name is unique
i = 2
unique_escaped_name = escaped_name
while unique_escaped_name in self.escaped_names:
unique_escaped_name = escaped_name + str(i)
i += 1
self.escaped_names.add(unique_escaped_name)
self.escaped_name = unique_escaped_name
def disassemble_children(self):
print(" children:", [rc.simple_name.str for rc in self.children])
for rc in self.children:
rc.disassemble()
def freeze_children(self, prelude_ptr=None):
# Freeze children and generate table of children.
if len(self.children):
for rc in self.children:
print("// child of %s" % self.escaped_name)
rc.freeze()
print()
print("static const mp_raw_code_t *const children_%s[] = {" % self.escaped_name)
for rc in self.children:
print(" (const mp_raw_code_t *)&proto_fun_%s," % rc.escaped_name)
if prelude_ptr:
print(" (void *)%s," % prelude_ptr)
print("};")
print()
def freeze_raw_code(self, prelude_ptr=None, type_sig=0):
# Generate mp_raw_code_t.
if self.code_kind == MP_CODE_NATIVE_ASM:
raw_code_type = "mp_raw_code_t"
else:
raw_code_type = "mp_raw_code_truncated_t"
empty_children = len(self.children) == 0 and prelude_ptr is None
generate_minimal = self.code_kind == MP_CODE_BYTECODE and empty_children
if generate_minimal:
print("#if MICROPY_PERSISTENT_CODE_SAVE")
print("static const %s proto_fun_%s = {" % (raw_code_type, self.escaped_name))
print(" .proto_fun_indicator[0] = MP_PROTO_FUN_INDICATOR_RAW_CODE_0,")
print(" .proto_fun_indicator[1] = MP_PROTO_FUN_INDICATOR_RAW_CODE_1,")
print(" .kind = %s," % RawCode.code_kind_str[self.code_kind])
print(" .is_generator = %d," % bool(self.scope_flags & MP_SCOPE_FLAG_GENERATOR))
print(" .fun_data = fun_data_%s," % self.escaped_name)
if len(self.children):
print(" .children = (void *)&children_%s," % self.escaped_name)
elif prelude_ptr:
print(" .children = (void *)%s," % prelude_ptr)
else:
print(" .children = NULL,")
print(" #if MICROPY_PERSISTENT_CODE_SAVE")
print(" .fun_data_len = %u," % len(self.fun_data))
print(" .n_children = %u," % len(self.children))
print(" #if MICROPY_EMIT_MACHINE_CODE")
print(" .prelude_offset = %u," % self.prelude_offset)
print(" #endif")
if self.code_kind == MP_CODE_BYTECODE:
print(" #if MICROPY_PY_SYS_SETTRACE")
print(" .line_of_definition = %u," % 0) # TODO
print(" .prelude = {")
print(" .n_state = %u," % self.prelude_signature[0])
print(" .n_exc_stack = %u," % self.prelude_signature[1])
print(" .scope_flags = %u," % self.prelude_signature[2])
print(" .n_pos_args = %u," % self.prelude_signature[3])
print(" .n_kwonly_args = %u," % self.prelude_signature[4])
print(" .n_def_pos_args = %u," % self.prelude_signature[5])
print(" .qstr_block_name_idx = %u," % self.names[0])
print(
" .line_info = fun_data_%s + %u,"
% (self.escaped_name, self.offset_line_info)
)
print(
" .line_info_top = fun_data_%s + %u,"
% (self.escaped_name, self.offset_closure_info)
)
print(
" .opcodes = fun_data_%s + %u," % (self.escaped_name, self.offset_opcodes)
)
print(" },")
print(" #endif")
print(" #endif")
if self.code_kind == MP_CODE_NATIVE_ASM:
print(" .asm_n_pos_args = %u," % self.n_pos_args)
print(" .asm_type_sig = %u," % type_sig)
print("};")
if generate_minimal:
print("#else")
print("#define proto_fun_%s fun_data_%s[0]" % (self.escaped_name, self.escaped_name))
print("#endif")
global raw_code_count, raw_code_content
raw_code_count += 1
raw_code_content += 4 * 4
class RawCodeBytecode(RawCode):
def __init__(self, parent_name, qstr_table, obj_table, fun_data):
self.obj_table = obj_table
super(RawCodeBytecode, self).__init__(
parent_name, qstr_table, fun_data, 0, MP_CODE_BYTECODE
)
def disassemble(self):
bc = self.fun_data
print("simple_name:", self.simple_name.str)
print(" raw bytecode:", len(bc), hexlify_to_str(bc))
print(" prelude:", self.prelude_signature)
print(" args:", [self.qstr_table[i].str for i in self.names[1:]])
print(" line info:", hexlify_to_str(bc[self.offset_line_info : self.offset_opcodes]))
ip = self.offset_opcodes
while ip < len(bc):
fmt, sz, arg, _ = mp_opcode_decode(bc, ip)
if bc[ip] == Opcode.MP_BC_LOAD_CONST_OBJ:
arg = repr(self.obj_table[arg])
if fmt == MP_BC_FORMAT_QSTR:
arg = self.qstr_table[arg].str
elif fmt in (MP_BC_FORMAT_VAR_UINT, MP_BC_FORMAT_OFFSET):
pass
else:
arg = ""
print(
" %-11s %s %s" % (hexlify_to_str(bc[ip : ip + sz]), Opcode.mapping[bc[ip]], arg)
)
ip += sz
self.disassemble_children()
def freeze(self):
# generate bytecode data
bc = self.fun_data
print(
"// frozen bytecode for file %s, scope %s"
% (self.qstr_table[0].str, self.escaped_name)
)
print("static const byte fun_data_%s[%u] = {" % (self.escaped_name, len(bc)))
print(" ", end="")
for b in bc[: self.offset_source_info]:
print("0x%02x," % b, end="")
print(" // prelude")
print(" ", end="")
for b in bc[self.offset_source_info : self.offset_line_info]:
print("0x%02x," % b, end="")
print(" // names: %s" % ", ".join(self.qstr_table[i].str for i in self.names))
print(" ", end="")
for b in bc[self.offset_line_info : self.offset_opcodes]:
print("0x%02x," % b, end="")
print(" // code info")
ip = self.offset_opcodes
while ip < len(bc):
fmt, sz, arg, _ = mp_opcode_decode(bc, ip)
opcode_name = Opcode.mapping[bc[ip]]
if fmt == MP_BC_FORMAT_QSTR:
opcode_name += " " + repr(self.qstr_table[arg].str)
elif fmt in (MP_BC_FORMAT_VAR_UINT, MP_BC_FORMAT_OFFSET):
opcode_name += " %u" % arg
print(
" %s, // %s" % (",".join("0x%02x" % b for b in bc[ip : ip + sz]), opcode_name)
)
ip += sz
print("};")
self.freeze_children()
self.freeze_raw_code()
global bc_content
bc_content += len(bc)
class RawCodeNative(RawCode):
def __init__(
self,
parent_name,
qstr_table,
kind,
fun_data,
prelude_offset,
scope_flags,
n_pos_args,
type_sig,
):
super(RawCodeNative, self).__init__(
parent_name, qstr_table, fun_data, prelude_offset, kind
)
if kind in (MP_CODE_NATIVE_VIPER, MP_CODE_NATIVE_ASM):
self.scope_flags = scope_flags
self.n_pos_args = n_pos_args
self.type_sig = type_sig
if config.native_arch in (
MP_NATIVE_ARCH_X86,
MP_NATIVE_ARCH_X64,
MP_NATIVE_ARCH_XTENSA,
MP_NATIVE_ARCH_XTENSAWIN,
):
self.fun_data_attributes = '__attribute__((section(".text,\\"ax\\",@progbits # ")))'
else:
self.fun_data_attributes = '__attribute__((section(".text,\\"ax\\",%progbits @ ")))'
# Allow single-byte alignment by default for x86/x64.
# ARM needs word alignment, ARM Thumb needs halfword, due to instruction size.
# Xtensa needs word alignment due to the 32-bit constant table embedded in the code.
if config.native_arch in (
MP_NATIVE_ARCH_ARMV6,
MP_NATIVE_ARCH_XTENSA,
MP_NATIVE_ARCH_XTENSAWIN,
):
# ARMV6 or Xtensa -- four byte align.
self.fun_data_attributes += " __attribute__ ((aligned (4)))"
elif (
MP_NATIVE_ARCH_ARMV6M <= config.native_arch <= MP_NATIVE_ARCH_ARMV7EMDP
) or config.native_arch == MP_NATIVE_ARCH_RV32IMC:
# ARMVxxM or RV32IMC -- two byte align.
self.fun_data_attributes += " __attribute__ ((aligned (2)))"
def disassemble(self):
fun_data = self.fun_data
print("simple_name:", self.simple_name.str)
print(
" raw data:",
len(fun_data),
hexlify_to_str(fun_data[:32]),
"..." if len(fun_data) > 32 else "",
)
if self.code_kind != MP_CODE_NATIVE_PY:
return
print(" prelude:", self.prelude_signature)
print(" args:", [self.qstr_table[i].str for i in self.names[1:]])
print(" line info:", fun_data[self.offset_line_info : self.offset_opcodes])
ip = 0
while ip < self.prelude_offset:
sz = 16
print(" ", hexlify_to_str(fun_data[ip : min(ip + sz, self.prelude_offset)]))
ip += sz
self.disassemble_children()
def freeze(self):
if self.scope_flags & ~0x0F:
raise FreezeError("unable to freeze code with relocations")
# generate native code data
print()
print(
"// frozen native code for file %s, scope %s"
% (self.qstr_table[0].str, self.escaped_name)
)
print(
"static const byte fun_data_%s[%u] %s = {"
% (self.escaped_name, len(self.fun_data), self.fun_data_attributes)
)
i_top = len(self.fun_data)
i = 0
while i < i_top:
# copy machine code (max 16 bytes)
i16 = min(i + 16, i_top)
print(" ", end="")
for ii in range(i, i16):
print(" 0x%02x," % self.fun_data[ii], end="")
print()
i = i16
print("};")
prelude_ptr = None
if self.code_kind == MP_CODE_NATIVE_PY:
prelude_ptr = "fun_data_%s_prelude_macro" % self.escaped_name
print("#if MICROPY_EMIT_NATIVE_PRELUDE_SEPARATE_FROM_MACHINE_CODE")
n = len(self.fun_data) - self.prelude_offset
print("static const byte fun_data_%s_prelude[%u] = {" % (self.escaped_name, n), end="")
for i in range(n):
print(" 0x%02x," % self.fun_data[self.prelude_offset + i], end="")
print("};")
print("#define %s &fun_data_%s_prelude[0]" % (prelude_ptr, self.escaped_name))
print("#else")
print(
"#define %s &fun_data_%s[%u]"
% (prelude_ptr, self.escaped_name, self.prelude_offset)
)
print("#endif")
self.freeze_children(prelude_ptr)
self.freeze_raw_code(prelude_ptr, self.type_sig)
class MPYSegment:
META = 0
QSTR = 1
OBJ = 2
CODE = 3
def __init__(self, kind, name, start, end):
self.kind = kind
self.name = name
self.start = start
self.end = end
class MPYReader:
def __init__(self, filename, fileobj):
self.filename = filename
self.fileobj = fileobj
def tell(self):
return self.fileobj.tell()
def read_byte(self):
return bytes_cons(self.fileobj.read(1))[0]
def read_bytes(self, n):
return bytes_cons(self.fileobj.read(n))
def read_uint(self):
i = 0
while True:
b = self.read_byte()
i = (i << 7) | (b & 0x7F)
if b & 0x80 == 0:
break
return i
def read_qstr(reader, segments):
start_pos = reader.tell()
ln = reader.read_uint()
if ln & 1:
# static qstr
q = global_qstrs.get_by_index(ln >> 1)
segments.append(MPYSegment(MPYSegment.META, q.str, start_pos, start_pos))
return q
ln >>= 1
start_pos = reader.tell()
data = str_cons(reader.read_bytes(ln), "utf8")
reader.read_byte() # read and discard null terminator
segments.append(MPYSegment(MPYSegment.QSTR, data, start_pos, reader.tell()))
return global_qstrs.add(data)
def read_obj(reader, segments):
obj_type = reader.read_byte()
if obj_type == MP_PERSISTENT_OBJ_FUN_TABLE:
return MPFunTable()
elif obj_type == MP_PERSISTENT_OBJ_NONE:
return None
elif obj_type == MP_PERSISTENT_OBJ_FALSE:
return False
elif obj_type == MP_PERSISTENT_OBJ_TRUE:
return True
elif obj_type == MP_PERSISTENT_OBJ_ELLIPSIS:
return Ellipsis
elif obj_type == MP_PERSISTENT_OBJ_TUPLE:
ln = reader.read_uint()
return tuple(read_obj(reader, segments) for _ in range(ln))
else:
ln = reader.read_uint()
start_pos = reader.tell()
buf = reader.read_bytes(ln)
if obj_type in (MP_PERSISTENT_OBJ_STR, MP_PERSISTENT_OBJ_BYTES):
reader.read_byte() # read and discard null terminator
if obj_type == MP_PERSISTENT_OBJ_STR:
obj = str_cons(buf, "utf8")
if len(obj) < PERSISTENT_STR_INTERN_THRESHOLD:
if not global_qstrs.find_by_str(obj):
global_qstrs.add(obj)
elif obj_type == MP_PERSISTENT_OBJ_BYTES:
obj = buf
elif obj_type == MP_PERSISTENT_OBJ_INT:
obj = int(str_cons(buf, "ascii"), 10)
elif obj_type == MP_PERSISTENT_OBJ_FLOAT:
obj = float(str_cons(buf, "ascii"))
elif obj_type == MP_PERSISTENT_OBJ_COMPLEX:
obj = complex(str_cons(buf, "ascii"))
else:
raise MPYReadError(reader.filename, "corrupt .mpy file")
segments.append(MPYSegment(MPYSegment.OBJ, obj, start_pos, reader.tell()))
return obj
def read_raw_code(reader, parent_name, qstr_table, obj_table, segments):
# Read raw code header.
kind_len = reader.read_uint()
kind = (kind_len & 3) + MP_CODE_BYTECODE
has_children = (kind_len >> 2) & 1
fun_data_len = kind_len >> 3
# Read the body of the raw code.
file_offset = reader.tell()
fun_data = reader.read_bytes(fun_data_len)
segments_len = len(segments)
if kind == MP_CODE_BYTECODE:
# Create bytecode raw code.
rc = RawCodeBytecode(parent_name, qstr_table, obj_table, fun_data)
else:
# Create native raw code.
native_scope_flags = 0
native_n_pos_args = 0
native_type_sig = 0
if kind == MP_CODE_NATIVE_PY:
prelude_offset = reader.read_uint()
else:
prelude_offset = 0
native_scope_flags = reader.read_uint()
if kind == MP_CODE_NATIVE_VIPER:
# Read any additional sections for native viper.
if native_scope_flags & MP_SCOPE_FLAG_VIPERRODATA:
rodata_size = reader.read_uint()
if native_scope_flags & MP_SCOPE_FLAG_VIPERBSS:
reader.read_uint() # bss_size
if native_scope_flags & MP_SCOPE_FLAG_VIPERRODATA:
reader.read_bytes(rodata_size)
if native_scope_flags & MP_SCOPE_FLAG_VIPERRELOC:
while True:
op = reader.read_byte()
if op == 0xFF:
break
if op & 1:
reader.read_uint() # addr
op >>= 1
if op <= 5 and op & 1:
reader.read_uint() # n
else:
assert kind == MP_CODE_NATIVE_ASM
native_n_pos_args = reader.read_uint()
native_type_sig = reader.read_uint()
rc = RawCodeNative(
parent_name,
qstr_table,
kind,
fun_data,
prelude_offset,
native_scope_flags,
native_n_pos_args,
native_type_sig,
)
# Add a segment for the raw code data.
segments.insert(
segments_len,
MPYSegment(MPYSegment.CODE, rc.simple_name.str, file_offset, file_offset + fun_data_len),
)
# Read children, if there are any.
rc.children = []
if has_children:
# Make a pretty parent name (otherwise all identifiers will include _lt_module_gt_).
if not rc.escaped_name.endswith("_lt_module_gt_"):
parent_name = rc.escaped_name
# Read all the child raw codes.
n_children = reader.read_uint()
for _ in range(n_children):
rc.children.append(read_raw_code(reader, parent_name, qstr_table, obj_table, segments))
return rc
def read_mpy(filename):
with open(filename, "rb") as fileobj:
reader = MPYReader(filename, fileobj)
segments = []
# Read and verify the header.
header = reader.read_bytes(4)
if header[0] != ord("M"):
raise MPYReadError(filename, "not a valid .mpy file")
if header[1] != config.MPY_VERSION:
raise MPYReadError(filename, "incompatible .mpy version")
feature_byte = header[2]
mpy_native_arch = feature_byte >> 2
if mpy_native_arch != MP_NATIVE_ARCH_NONE:
mpy_sub_version = feature_byte & 3
if mpy_sub_version != config.MPY_SUB_VERSION:
raise MPYReadError(filename, "incompatible .mpy sub-version")
if config.native_arch == MP_NATIVE_ARCH_NONE:
config.native_arch = mpy_native_arch
elif config.native_arch != mpy_native_arch:
raise MPYReadError(filename, "native architecture mismatch")
config.mp_small_int_bits = header[3]
# Read number of qstrs, and number of objects.
n_qstr = reader.read_uint()
n_obj = reader.read_uint()
# Read qstrs and construct qstr table.
qstr_table_file_offset = reader.tell()
qstr_table = []
for i in range(n_qstr):
qstr_table.append(read_qstr(reader, segments))
# Read objects and construct object table.
obj_table_file_offset = reader.tell()
obj_table = []
for i in range(n_obj):
obj_table.append(read_obj(reader, segments))
# Compute the compiled-module escaped name.
cm_escaped_name = qstr_table[0].str.replace("/", "_")[:-3]
# Read the outer raw code, which will in turn read all its children.
raw_code_file_offset = reader.tell()
raw_code = read_raw_code(reader, cm_escaped_name, qstr_table, obj_table, segments)
# Create the outer-level compiled module representing the whole .mpy file.
return CompiledModule(
filename,
segments,
header,
qstr_table,
obj_table,
raw_code,
qstr_table_file_offset,
obj_table_file_offset,
raw_code_file_offset,
cm_escaped_name,
)
def hexdump_mpy(compiled_modules):
for cm in compiled_modules:
cm.hexdump()
def disassemble_mpy(compiled_modules):
for cm in compiled_modules:
cm.disassemble()
def freeze_mpy(firmware_qstr_idents, compiled_modules):
# add to qstrs
new = {}
for q in global_qstrs.qstrs:
# don't add duplicates that are already in the firmware
if q is None or q.qstr_esc in firmware_qstr_idents or q.qstr_esc in new:
continue
new[q.qstr_esc] = (len(new), q.qstr_esc, q.str, bytes_cons(q.str, "utf8"))
# Sort by string value (because this is a sorted pool).
new = sorted(new.values(), key=lambda x: x[2])
print('#include "py/mpconfig.h"')
print('#include "py/objint.h"')
print('#include "py/objstr.h"')
print('#include "py/emitglue.h"')
print('#include "py/nativeglue.h"')
print()
print("#if MICROPY_LONGINT_IMPL != %u" % config.MICROPY_LONGINT_IMPL)
print('#error "incompatible MICROPY_LONGINT_IMPL"')
print("#endif")
print()
if config.MICROPY_LONGINT_IMPL == config.MICROPY_LONGINT_IMPL_MPZ:
print("#if MPZ_DIG_SIZE != %u" % config.MPZ_DIG_SIZE)
print('#error "incompatible MPZ_DIG_SIZE"')
print("#endif")
print()
print("#if MICROPY_PY_BUILTINS_FLOAT")
print("typedef struct _mp_obj_float_t {")
print(" mp_obj_base_t base;")
print(" mp_float_t value;")
print("} mp_obj_float_t;")
print("#endif")
print()
print("#if MICROPY_PY_BUILTINS_COMPLEX")
print("typedef struct _mp_obj_complex_t {")
print(" mp_obj_base_t base;")
print(" mp_float_t real;")
print(" mp_float_t imag;")
print("} mp_obj_complex_t;")
print("#endif")
print()
if len(new) > 0:
print("enum {")
for i in range(len(new)):
if i == 0:
print(" MP_QSTR_%s = MP_QSTRnumber_of," % new[i][1])
else:
print(" MP_QSTR_%s," % new[i][1])
print("};")
# As in qstr.c, set so that the first dynamically allocated pool is twice this size; must be <= the len
qstr_pool_alloc = min(len(new), 10)
global \
bc_content, \
const_str_content, \
const_int_content, \
const_obj_content, \
const_table_qstr_content, \
const_table_ptr_content, \
raw_code_count, \
raw_code_content
qstr_content = 0
bc_content = 0
const_str_content = 0
const_int_content = 0
const_obj_content = 0
const_table_qstr_content = 0
const_table_ptr_content = 0
raw_code_count = 0
raw_code_content = 0
if config.MICROPY_QSTR_BYTES_IN_HASH:
print()
print("const qstr_hash_t mp_qstr_frozen_const_hashes[] = {")
for _, _, _, qbytes in new:
qhash = qstrutil.compute_hash(qbytes, config.MICROPY_QSTR_BYTES_IN_HASH)
print(" %d," % qhash)
qstr_content += config.MICROPY_QSTR_BYTES_IN_HASH
print("};")
print()
print("const qstr_len_t mp_qstr_frozen_const_lengths[] = {")
for _, _, _, qbytes in new:
print(" %d," % len(qbytes))
qstr_content += config.MICROPY_QSTR_BYTES_IN_LEN
qstr_content += len(qbytes) + 1 # include NUL
print("};")
print()
print("extern const qstr_pool_t mp_qstr_const_pool;")
print("const qstr_pool_t mp_qstr_frozen_const_pool = {")
print(" &mp_qstr_const_pool, // previous pool")
print(" MP_QSTRnumber_of, // previous pool size")
print(" true, // is_sorted")
print(" %u, // allocated entries" % qstr_pool_alloc)
print(" %u, // used entries" % len(new))
if config.MICROPY_QSTR_BYTES_IN_HASH:
print(" (qstr_hash_t *)mp_qstr_frozen_const_hashes,")
print(" (qstr_len_t *)mp_qstr_frozen_const_lengths,")
print(" {")
for _, _, qstr, qbytes in new:
print(' "%s",' % qstrutil.escape_bytes(qstr, qbytes))
print(" },")
print("};")
# Freeze all modules.
for idx, cm in enumerate(compiled_modules):
cm.freeze(idx)
# Print separator, separating individual modules from global data structures.
print()
print("/" * 80)
print("// collection of all frozen modules")
# Define the string of frozen module names.
print()
print("const char mp_frozen_names[] = {")
print(" #ifdef MP_FROZEN_STR_NAMES")
# makemanifest.py might also include some frozen string content.
print(" MP_FROZEN_STR_NAMES")
print(" #endif")
mp_frozen_mpy_names_content = 1
for cm in compiled_modules:
module_name = cm.source_file.str
print(' "%s\\0"' % module_name)
mp_frozen_mpy_names_content += len(cm.source_file.str) + 1
print(' "\\0"')
print("};")
# Define the array of pointers to frozen module content.
print()
print("const mp_frozen_module_t *const mp_frozen_mpy_content[] = {")
for cm in compiled_modules:
print(" &frozen_module_%s," % cm.escaped_name)
print("};")
mp_frozen_mpy_content_size = len(compiled_modules * 4)
# If a port defines MICROPY_FROZEN_LIST_ITEM then list all modules wrapped in that macro.
print()
print("#ifdef MICROPY_FROZEN_LIST_ITEM")
for cm in compiled_modules:
module_name = cm.source_file.str
if module_name.endswith("/__init__.py"):
short_name = module_name[: -len("/__init__.py")]
else:
short_name = module_name[: -len(".py")]
print('MICROPY_FROZEN_LIST_ITEM("%s", "%s")' % (short_name, module_name))
print("#endif")
print()
print("/*")
print("byte sizes:")
print("qstr content: %d unique, %d bytes" % (len(new), qstr_content))
print("bc content: %d" % bc_content)
print("const str content: %d" % const_str_content)
print("const int content: %d" % const_int_content)
print("const obj content: %d" % const_obj_content)
print(
"const table qstr content: %d entries, %d bytes"
% (const_table_qstr_content, const_table_qstr_content * 4)
)
print(
"const table ptr content: %d entries, %d bytes"
% (const_table_ptr_content, const_table_ptr_content * 4)
)
print("raw code content: %d * 4 = %d" % (raw_code_count, raw_code_content))
print("mp_frozen_mpy_names_content: %d" % mp_frozen_mpy_names_content)
print("mp_frozen_mpy_content_size: %d" % mp_frozen_mpy_content_size)
print(
"total: %d"
% (
qstr_content
+ bc_content
+ const_str_content
+ const_int_content
+ const_obj_content
+ const_table_qstr_content * 4
+ const_table_ptr_content * 4
+ raw_code_content
+ mp_frozen_mpy_names_content
+ mp_frozen_mpy_content_size
)
)
print("*/")
def adjust_bytecode_qstr_obj_indices(bytecode_in, qstr_table_base, obj_table_base):
# Expand bytcode to a list of opcodes.
opcodes = []
labels = {}
ip = 0
while ip < len(bytecode_in):
fmt, sz, arg, extra_arg = mp_opcode_decode(bytecode_in, ip)
opcode = Opcode(ip, fmt, bytecode_in[ip], arg, extra_arg)
labels[ip] = opcode
opcodes.append(opcode)
ip += sz
if fmt == MP_BC_FORMAT_OFFSET:
opcode.arg += ip
# Link jump opcodes to their destination.
for opcode in opcodes:
if opcode.fmt == MP_BC_FORMAT_OFFSET:
opcode.target = labels[opcode.arg]
# Adjust bytcode as required.
for opcode in opcodes:
if opcode.fmt == MP_BC_FORMAT_QSTR:
opcode.arg += qstr_table_base
elif opcode.opcode_byte == Opcode.MP_BC_LOAD_CONST_OBJ:
opcode.arg += obj_table_base
# Write out new bytecode.
offset_changed = True
while offset_changed:
offset_changed = False
overflow = False
bytecode_out = b""
for opcode in opcodes:
ip = len(bytecode_out)
if opcode.offset != ip:
offset_changed = True
opcode.offset = ip
opcode_overflow, encoded_opcode = mp_opcode_encode(opcode)
if opcode_overflow:
overflow = True
bytecode_out += encoded_opcode
if overflow:
raise Exception("bytecode overflow")
return bytecode_out
def rewrite_raw_code(rc, qstr_table_base, obj_table_base):
if rc.code_kind != MP_CODE_BYTECODE:
raise Exception("can only rewrite bytecode")
source_info = bytearray()
for arg in rc.names:
source_info.extend(mp_encode_uint(qstr_table_base + arg))
closure_info = rc.fun_data[rc.offset_closure_info : rc.offset_opcodes]
bytecode_in = memoryview(rc.fun_data)[rc.offset_opcodes :]
bytecode_out = adjust_bytecode_qstr_obj_indices(bytecode_in, qstr_table_base, obj_table_base)
prelude_signature = rc.fun_data[: rc.offset_prelude_size]
prelude_size = encode_prelude_size(len(source_info), len(closure_info))
fun_data = prelude_signature + prelude_size + source_info + closure_info + bytecode_out
output = mp_encode_uint(len(fun_data) << 3 | bool(len(rc.children)) << 2)
output += fun_data
if rc.children:
output += mp_encode_uint(len(rc.children))
for child in rc.children:
output += rewrite_raw_code(child, qstr_table_base, obj_table_base)
return output
def merge_mpy(compiled_modules, output_file):
merged_mpy = bytearray()
if len(compiled_modules) == 1:
with open(compiled_modules[0].mpy_source_file, "rb") as f:
merged_mpy.extend(f.read())
else:
main_cm_idx = None
for idx, cm in enumerate(compiled_modules):
feature_byte = cm.header[2]
mpy_native_arch = feature_byte >> 2
if mpy_native_arch:
# Must use qstr_table and obj_table from this raw_code
if main_cm_idx is not None:
raise Exception("can't merge files when more than one contains native code")
main_cm_idx = idx
if main_cm_idx is not None:
# Shift main_cm to front of list.
compiled_modules.insert(0, compiled_modules.pop(main_cm_idx))
header = bytearray(4)
header[0] = ord("M")
header[1] = config.MPY_VERSION
header[2] = config.native_arch << 2 | config.MPY_SUB_VERSION if config.native_arch else 0
header[3] = config.mp_small_int_bits
merged_mpy.extend(header)
n_qstr = 0
n_obj = 0
for cm in compiled_modules:
n_qstr += len(cm.qstr_table)
n_obj += len(cm.obj_table)
merged_mpy.extend(mp_encode_uint(n_qstr))
merged_mpy.extend(mp_encode_uint(n_obj))
# Copy verbatim the qstr and object tables from all compiled modules.
def copy_section(file, offset, offset2):
with open(file, "rb") as f:
f.seek(offset)
merged_mpy.extend(f.read(offset2 - offset))
for cm in compiled_modules:
copy_section(cm.mpy_source_file, cm.qstr_table_file_offset, cm.obj_table_file_offset)
for cm in compiled_modules:
copy_section(cm.mpy_source_file, cm.obj_table_file_offset, cm.raw_code_file_offset)
bytecode = bytearray()
bytecode.append(0b00000000) # prelude signature
bytecode.append(0b00000010) # prelude size (n_info=1, n_cell=0)
bytecode.extend(b"\x00") # simple_name: qstr index 0 (will use source filename)
for idx in range(len(compiled_modules)):
bytecode.append(Opcode.MP_BC_MAKE_FUNCTION)
bytecode.extend(mp_encode_uint(idx)) # index of raw code
bytecode.append(Opcode.MP_BC_CALL_FUNCTION)
bytecode.append(0) # 0 arguments
bytecode.append(Opcode.MP_BC_POP_TOP)
bytecode.append(Opcode.MP_BC_LOAD_CONST_NONE)
bytecode.append(Opcode.MP_BC_RETURN_VALUE)
merged_mpy.extend(mp_encode_uint(len(bytecode) << 3 | 1 << 2)) # length, has_children
merged_mpy.extend(bytecode)
merged_mpy.extend(mp_encode_uint(len(compiled_modules))) # n_children
qstr_table_base = 0
obj_table_base = 0
for cm in compiled_modules:
if qstr_table_base == 0 and obj_table_base == 0:
with open(cm.mpy_source_file, "rb") as f:
f.seek(cm.raw_code_file_offset)
merged_mpy.extend(f.read())
else:
merged_mpy.extend(rewrite_raw_code(cm.raw_code, qstr_table_base, obj_table_base))
qstr_table_base += len(cm.qstr_table)
obj_table_base += len(cm.obj_table)
if output_file is None:
sys.stdout.buffer.write(merged_mpy)
else:
with open(output_file, "wb") as f:
f.write(merged_mpy)
def main():
global global_qstrs
import argparse
cmd_parser = argparse.ArgumentParser(description="A tool to work with MicroPython .mpy files.")
cmd_parser.add_argument(
"-x", "--hexdump", action="store_true", help="output an annotated hex dump of files"
)
cmd_parser.add_argument(
"-d", "--disassemble", action="store_true", help="output disassembled contents of files"
)
cmd_parser.add_argument("-f", "--freeze", action="store_true", help="freeze files")
cmd_parser.add_argument(
"--merge", action="store_true", help="merge multiple .mpy files into one"
)
cmd_parser.add_argument("-q", "--qstr-header", help="qstr header file to freeze against")
cmd_parser.add_argument(
"-mlongint-impl",
choices=["none", "longlong", "mpz"],
default="mpz",
help="long-int implementation used by target (default mpz)",
)
cmd_parser.add_argument(
"-mmpz-dig-size",
metavar="N",
type=int,
default=16,
help="mpz digit size used by target (default 16)",
)
cmd_parser.add_argument("-o", "--output", default=None, help="output file")
cmd_parser.add_argument("files", nargs="+", help="input .mpy files")
args = cmd_parser.parse_args()
# set config values relevant to target machine
config.MICROPY_LONGINT_IMPL = {
"none": config.MICROPY_LONGINT_IMPL_NONE,
"longlong": config.MICROPY_LONGINT_IMPL_LONGLONG,
"mpz": config.MICROPY_LONGINT_IMPL_MPZ,
}[args.mlongint_impl]
config.MPZ_DIG_SIZE = args.mmpz_dig_size
config.native_arch = MP_NATIVE_ARCH_NONE
# set config values for qstrs, and get the existing base set of qstrs
# already in the firmware
if args.qstr_header:
qcfgs, extra_qstrs = qstrutil.parse_input_headers([args.qstr_header])
firmware_qstr_idents = set(qstrutil.static_qstr_list_ident) | set(extra_qstrs.keys())
config.MICROPY_QSTR_BYTES_IN_LEN = int(qcfgs["BYTES_IN_LEN"])
config.MICROPY_QSTR_BYTES_IN_HASH = int(qcfgs["BYTES_IN_HASH"])
else:
config.MICROPY_QSTR_BYTES_IN_LEN = 1
config.MICROPY_QSTR_BYTES_IN_HASH = 1
firmware_qstr_idents = set(qstrutil.static_qstr_list_ident)
# Create initial list of global qstrs.
global_qstrs = GlobalQStrList()
# Load all .mpy files.
try:
compiled_modules = [read_mpy(file) for file in args.files]
except MPYReadError as er:
print(er, file=sys.stderr)
sys.exit(1)
if args.hexdump:
hexdump_mpy(compiled_modules)
if args.disassemble:
if args.hexdump:
print()
disassemble_mpy(compiled_modules)
if args.freeze:
try:
freeze_mpy(firmware_qstr_idents, compiled_modules)
except FreezeError as er:
print(er, file=sys.stderr)
sys.exit(1)
if args.merge:
merge_mpy(compiled_modules, args.output)
if __name__ == "__main__":
main()