mirror of https://github.com/python/cpython
288 lines
16 KiB
C
288 lines
16 KiB
C
#ifndef Py_INTERNAL_MAGIC_NUMBER_H
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#define Py_INTERNAL_MAGIC_NUMBER_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef Py_BUILD_CORE
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# error "this header requires Py_BUILD_CORE define"
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#endif
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/*
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Magic number to reject .pyc files generated by other Python versions.
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It should change for each incompatible change to the bytecode.
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PYC_MAGIC_NUMBER must change whenever the bytecode emitted by the compiler may
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no longer be understood by older implementations of the eval loop (usually due
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to the addition of new opcodes).
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The value of CR and LF is incorporated so if you ever read or write
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a .pyc file in text mode the magic number will be wrong; also, the
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Apple MPW compiler swaps their values, botching string constants.
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There were a variety of old schemes for setting the magic number. Starting with
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Python 3.11, Python 3.n starts with magic number 2900+50n. Within each minor
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version, the magic number is incremented by 1 each time the file format changes.
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Known values:
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Python 1.5: 20121
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Python 1.5.1: 20121
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Python 1.5.2: 20121
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Python 1.6: 50428
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Python 2.0: 50823
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Python 2.0.1: 50823
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Python 2.1: 60202
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Python 2.1.1: 60202
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Python 2.1.2: 60202
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Python 2.2: 60717
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Python 2.3a0: 62011
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Python 2.3a0: 62021
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Python 2.3a0: 62011 (!)
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Python 2.4a0: 62041
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Python 2.4a3: 62051
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Python 2.4b1: 62061
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Python 2.5a0: 62071
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Python 2.5a0: 62081 (ast-branch)
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Python 2.5a0: 62091 (with)
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Python 2.5a0: 62092 (changed WITH_CLEANUP opcode)
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Python 2.5b3: 62101 (fix wrong code: for x, in ...)
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Python 2.5b3: 62111 (fix wrong code: x += yield)
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Python 2.5c1: 62121 (fix wrong lnotab with for loops and
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storing constants that should have been removed)
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Python 2.5c2: 62131 (fix wrong code: for x, in ... in listcomp/genexp)
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Python 2.6a0: 62151 (peephole optimizations and STORE_MAP opcode)
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Python 2.6a1: 62161 (WITH_CLEANUP optimization)
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Python 2.7a0: 62171 (optimize list comprehensions/change LIST_APPEND)
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Python 2.7a0: 62181 (optimize conditional branches:
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introduce POP_JUMP_IF_FALSE and POP_JUMP_IF_TRUE)
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Python 2.7a0 62191 (introduce SETUP_WITH)
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Python 2.7a0 62201 (introduce BUILD_SET)
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Python 2.7a0 62211 (introduce MAP_ADD and SET_ADD)
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Python 3000: 3000
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3010 (removed UNARY_CONVERT)
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3020 (added BUILD_SET)
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3030 (added keyword-only parameters)
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3040 (added signature annotations)
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3050 (print becomes a function)
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3060 (PEP 3115 metaclass syntax)
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3061 (string literals become unicode)
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3071 (PEP 3109 raise changes)
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3081 (PEP 3137 make __file__ and __name__ unicode)
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3091 (kill str8 interning)
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3101 (merge from 2.6a0, see 62151)
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3103 (__file__ points to source file)
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Python 3.0a4: 3111 (WITH_CLEANUP optimization).
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Python 3.0b1: 3131 (lexical exception stacking, including POP_EXCEPT
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#3021)
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Python 3.1a1: 3141 (optimize list, set and dict comprehensions:
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change LIST_APPEND and SET_ADD, add MAP_ADD #2183)
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Python 3.1a1: 3151 (optimize conditional branches:
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introduce POP_JUMP_IF_FALSE and POP_JUMP_IF_TRUE
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#4715)
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Python 3.2a1: 3160 (add SETUP_WITH #6101)
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Python 3.2a2: 3170 (add DUP_TOP_TWO, remove DUP_TOPX and ROT_FOUR #9225)
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Python 3.2a3 3180 (add DELETE_DEREF #4617)
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Python 3.3a1 3190 (__class__ super closure changed)
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Python 3.3a1 3200 (PEP 3155 __qualname__ added #13448)
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Python 3.3a1 3210 (added size modulo 2**32 to the pyc header #13645)
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Python 3.3a2 3220 (changed PEP 380 implementation #14230)
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Python 3.3a4 3230 (revert changes to implicit __class__ closure #14857)
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Python 3.4a1 3250 (evaluate positional default arguments before
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keyword-only defaults #16967)
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Python 3.4a1 3260 (add LOAD_CLASSDEREF; allow locals of class to override
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free vars #17853)
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Python 3.4a1 3270 (various tweaks to the __class__ closure #12370)
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Python 3.4a1 3280 (remove implicit class argument)
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Python 3.4a4 3290 (changes to __qualname__ computation #19301)
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Python 3.4a4 3300 (more changes to __qualname__ computation #19301)
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Python 3.4rc2 3310 (alter __qualname__ computation #20625)
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Python 3.5a1 3320 (PEP 465: Matrix multiplication operator #21176)
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Python 3.5b1 3330 (PEP 448: Additional Unpacking Generalizations #2292)
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Python 3.5b2 3340 (fix dictionary display evaluation order #11205)
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Python 3.5b3 3350 (add GET_YIELD_FROM_ITER opcode #24400)
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Python 3.5.2 3351 (fix BUILD_MAP_UNPACK_WITH_CALL opcode #27286)
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Python 3.6a0 3360 (add FORMAT_VALUE opcode #25483)
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Python 3.6a1 3361 (lineno delta of code.co_lnotab becomes signed #26107)
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Python 3.6a2 3370 (16 bit wordcode #26647)
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Python 3.6a2 3371 (add BUILD_CONST_KEY_MAP opcode #27140)
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Python 3.6a2 3372 (MAKE_FUNCTION simplification, remove MAKE_CLOSURE
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#27095)
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Python 3.6b1 3373 (add BUILD_STRING opcode #27078)
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Python 3.6b1 3375 (add SETUP_ANNOTATIONS and STORE_ANNOTATION opcodes
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#27985)
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Python 3.6b1 3376 (simplify CALL_FUNCTIONs & BUILD_MAP_UNPACK_WITH_CALL
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#27213)
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Python 3.6b1 3377 (set __class__ cell from type.__new__ #23722)
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Python 3.6b2 3378 (add BUILD_TUPLE_UNPACK_WITH_CALL #28257)
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Python 3.6rc1 3379 (more thorough __class__ validation #23722)
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Python 3.7a1 3390 (add LOAD_METHOD and CALL_METHOD opcodes #26110)
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Python 3.7a2 3391 (update GET_AITER #31709)
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Python 3.7a4 3392 (PEP 552: Deterministic pycs #31650)
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Python 3.7b1 3393 (remove STORE_ANNOTATION opcode #32550)
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Python 3.7b5 3394 (restored docstring as the first stmt in the body;
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this might affected the first line number #32911)
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Python 3.8a1 3400 (move frame block handling to compiler #17611)
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Python 3.8a1 3401 (add END_ASYNC_FOR #33041)
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Python 3.8a1 3410 (PEP570 Python Positional-Only Parameters #36540)
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Python 3.8b2 3411 (Reverse evaluation order of key: value in dict
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comprehensions #35224)
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Python 3.8b2 3412 (Swap the position of positional args and positional
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only args in ast.arguments #37593)
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Python 3.8b4 3413 (Fix "break" and "continue" in "finally" #37830)
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Python 3.9a0 3420 (add LOAD_ASSERTION_ERROR #34880)
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Python 3.9a0 3421 (simplified bytecode for with blocks #32949)
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Python 3.9a0 3422 (remove BEGIN_FINALLY, END_FINALLY, CALL_FINALLY, POP_FINALLY bytecodes #33387)
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Python 3.9a2 3423 (add IS_OP, CONTAINS_OP and JUMP_IF_NOT_EXC_MATCH bytecodes #39156)
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Python 3.9a2 3424 (simplify bytecodes for *value unpacking)
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Python 3.9a2 3425 (simplify bytecodes for **value unpacking)
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Python 3.10a1 3430 (Make 'annotations' future by default)
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Python 3.10a1 3431 (New line number table format -- PEP 626)
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Python 3.10a2 3432 (Function annotation for MAKE_FUNCTION is changed from dict to tuple bpo-42202)
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Python 3.10a2 3433 (RERAISE restores f_lasti if oparg != 0)
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Python 3.10a6 3434 (PEP 634: Structural Pattern Matching)
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Python 3.10a7 3435 Use instruction offsets (as opposed to byte offsets).
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Python 3.10b1 3436 (Add GEN_START bytecode #43683)
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Python 3.10b1 3437 (Undo making 'annotations' future by default - We like to dance among core devs!)
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Python 3.10b1 3438 Safer line number table handling.
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Python 3.10b1 3439 (Add ROT_N)
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Python 3.11a1 3450 Use exception table for unwinding ("zero cost" exception handling)
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Python 3.11a1 3451 (Add CALL_METHOD_KW)
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Python 3.11a1 3452 (drop nlocals from marshaled code objects)
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Python 3.11a1 3453 (add co_fastlocalnames and co_fastlocalkinds)
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Python 3.11a1 3454 (compute cell offsets relative to locals bpo-43693)
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Python 3.11a1 3455 (add MAKE_CELL bpo-43693)
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Python 3.11a1 3456 (interleave cell args bpo-43693)
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Python 3.11a1 3457 (Change localsplus to a bytes object bpo-43693)
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Python 3.11a1 3458 (imported objects now don't use LOAD_METHOD/CALL_METHOD)
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Python 3.11a1 3459 (PEP 657: add end line numbers and column offsets for instructions)
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Python 3.11a1 3460 (Add co_qualname field to PyCodeObject bpo-44530)
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Python 3.11a1 3461 (JUMP_ABSOLUTE must jump backwards)
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Python 3.11a2 3462 (bpo-44511: remove COPY_DICT_WITHOUT_KEYS, change
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MATCH_CLASS and MATCH_KEYS, and add COPY)
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Python 3.11a3 3463 (bpo-45711: JUMP_IF_NOT_EXC_MATCH no longer pops the
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active exception)
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Python 3.11a3 3464 (bpo-45636: Merge numeric BINARY_*INPLACE_* into
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BINARY_OP)
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Python 3.11a3 3465 (Add COPY_FREE_VARS opcode)
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Python 3.11a4 3466 (bpo-45292: PEP-654 except*)
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Python 3.11a4 3467 (Change CALL_xxx opcodes)
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Python 3.11a4 3468 (Add SEND opcode)
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Python 3.11a4 3469 (bpo-45711: remove type, traceback from exc_info)
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Python 3.11a4 3470 (bpo-46221: PREP_RERAISE_STAR no longer pushes lasti)
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Python 3.11a4 3471 (bpo-46202: remove pop POP_EXCEPT_AND_RERAISE)
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Python 3.11a4 3472 (bpo-46009: replace GEN_START with POP_TOP)
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Python 3.11a4 3473 (Add POP_JUMP_IF_NOT_NONE/POP_JUMP_IF_NONE opcodes)
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Python 3.11a4 3474 (Add RESUME opcode)
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Python 3.11a5 3475 (Add RETURN_GENERATOR opcode)
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Python 3.11a5 3476 (Add ASYNC_GEN_WRAP opcode)
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Python 3.11a5 3477 (Replace DUP_TOP/DUP_TOP_TWO with COPY and
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ROT_TWO/ROT_THREE/ROT_FOUR/ROT_N with SWAP)
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Python 3.11a5 3478 (New CALL opcodes)
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Python 3.11a5 3479 (Add PUSH_NULL opcode)
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Python 3.11a5 3480 (New CALL opcodes, second iteration)
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Python 3.11a5 3481 (Use inline cache for BINARY_OP)
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Python 3.11a5 3482 (Use inline caching for UNPACK_SEQUENCE and LOAD_GLOBAL)
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Python 3.11a5 3483 (Use inline caching for COMPARE_OP and BINARY_SUBSCR)
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Python 3.11a5 3484 (Use inline caching for LOAD_ATTR, LOAD_METHOD, and
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STORE_ATTR)
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Python 3.11a5 3485 (Add an oparg to GET_AWAITABLE)
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Python 3.11a6 3486 (Use inline caching for PRECALL and CALL)
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Python 3.11a6 3487 (Remove the adaptive "oparg counter" mechanism)
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Python 3.11a6 3488 (LOAD_GLOBAL can push additional NULL)
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Python 3.11a6 3489 (Add JUMP_BACKWARD, remove JUMP_ABSOLUTE)
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Python 3.11a6 3490 (remove JUMP_IF_NOT_EXC_MATCH, add CHECK_EXC_MATCH)
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Python 3.11a6 3491 (remove JUMP_IF_NOT_EG_MATCH, add CHECK_EG_MATCH,
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add JUMP_BACKWARD_NO_INTERRUPT, make JUMP_NO_INTERRUPT virtual)
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Python 3.11a7 3492 (make POP_JUMP_IF_NONE/NOT_NONE/TRUE/FALSE relative)
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Python 3.11a7 3493 (Make JUMP_IF_TRUE_OR_POP/JUMP_IF_FALSE_OR_POP relative)
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Python 3.11a7 3494 (New location info table)
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Python 3.11b4 3495 (Set line number of module's RESUME instr to 0 per PEP 626)
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Python 3.12a1 3500 (Remove PRECALL opcode)
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Python 3.12a1 3501 (YIELD_VALUE oparg == stack_depth)
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Python 3.12a1 3502 (LOAD_FAST_CHECK, no NULL-check in LOAD_FAST)
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Python 3.12a1 3503 (Shrink LOAD_METHOD cache)
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Python 3.12a1 3504 (Merge LOAD_METHOD back into LOAD_ATTR)
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Python 3.12a1 3505 (Specialization/Cache for FOR_ITER)
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Python 3.12a1 3506 (Add BINARY_SLICE and STORE_SLICE instructions)
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Python 3.12a1 3507 (Set lineno of module's RESUME to 0)
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Python 3.12a1 3508 (Add CLEANUP_THROW)
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Python 3.12a1 3509 (Conditional jumps only jump forward)
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Python 3.12a2 3510 (FOR_ITER leaves iterator on the stack)
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Python 3.12a2 3511 (Add STOPITERATION_ERROR instruction)
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Python 3.12a2 3512 (Remove all unused consts from code objects)
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Python 3.12a4 3513 (Add CALL_INTRINSIC_1 instruction, removed STOPITERATION_ERROR, PRINT_EXPR, IMPORT_STAR)
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Python 3.12a4 3514 (Remove ASYNC_GEN_WRAP, LIST_TO_TUPLE, and UNARY_POSITIVE)
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Python 3.12a5 3515 (Embed jump mask in COMPARE_OP oparg)
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Python 3.12a5 3516 (Add COMPARE_AND_BRANCH instruction)
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Python 3.12a5 3517 (Change YIELD_VALUE oparg to exception block depth)
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Python 3.12a6 3518 (Add RETURN_CONST instruction)
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Python 3.12a6 3519 (Modify SEND instruction)
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Python 3.12a6 3520 (Remove PREP_RERAISE_STAR, add CALL_INTRINSIC_2)
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Python 3.12a7 3521 (Shrink the LOAD_GLOBAL caches)
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Python 3.12a7 3522 (Removed JUMP_IF_FALSE_OR_POP/JUMP_IF_TRUE_OR_POP)
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Python 3.12a7 3523 (Convert COMPARE_AND_BRANCH back to COMPARE_OP)
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Python 3.12a7 3524 (Shrink the BINARY_SUBSCR caches)
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Python 3.12b1 3525 (Shrink the CALL caches)
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Python 3.12b1 3526 (Add instrumentation support)
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Python 3.12b1 3527 (Add LOAD_SUPER_ATTR)
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Python 3.12b1 3528 (Add LOAD_SUPER_ATTR_METHOD specialization)
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Python 3.12b1 3529 (Inline list/dict/set comprehensions)
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Python 3.12b1 3530 (Shrink the LOAD_SUPER_ATTR caches)
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Python 3.12b1 3531 (Add PEP 695 changes)
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Python 3.13a1 3550 (Plugin optimizer support)
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Python 3.13a1 3551 (Compact superinstructions)
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Python 3.13a1 3552 (Remove LOAD_FAST__LOAD_CONST and LOAD_CONST__LOAD_FAST)
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Python 3.13a1 3553 (Add SET_FUNCTION_ATTRIBUTE)
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Python 3.13a1 3554 (more efficient bytecodes for f-strings)
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Python 3.13a1 3555 (generate specialized opcodes metadata from bytecodes.c)
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Python 3.13a1 3556 (Convert LOAD_CLOSURE to a pseudo-op)
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Python 3.13a1 3557 (Make the conversion to boolean in jumps explicit)
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Python 3.13a1 3558 (Reorder the stack items for CALL)
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Python 3.13a1 3559 (Generate opcode IDs from bytecodes.c)
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Python 3.13a1 3560 (Add RESUME_CHECK instruction)
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Python 3.13a1 3561 (Add cache entry to branch instructions)
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Python 3.13a1 3562 (Assign opcode IDs for internal ops in separate range)
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Python 3.13a1 3563 (Add CALL_KW and remove KW_NAMES)
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Python 3.13a1 3564 (Removed oparg from YIELD_VALUE, changed oparg values of RESUME)
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Python 3.13a1 3565 (Oparg of YIELD_VALUE indicates whether it is in a yield-from)
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Python 3.13a1 3566 (Emit JUMP_NO_INTERRUPT instead of JUMP for non-loop no-lineno cases)
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Python 3.13a1 3567 (Reimplement line number propagation by the compiler)
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Python 3.13a1 3568 (Change semantics of END_FOR)
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Python 3.13a5 3569 (Specialize CONTAINS_OP)
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Python 3.13a6 3570 (Add __firstlineno__ class attribute)
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Python 3.13b1 3571 (Fix miscompilation of private names in generic classes)
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Python 3.14a1 3600 (Add LOAD_COMMON_CONSTANT)
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Python 3.14a1 3601 (Fix miscompilation of private names in generic classes)
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Python 3.14a1 3602 (Add LOAD_SPECIAL. Remove BEFORE_WITH and BEFORE_ASYNC_WITH)
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Python 3.14a1 3603 (Remove BUILD_CONST_KEY_MAP)
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Python 3.14a1 3604 (Do not duplicate test at end of while statements)
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Python 3.14a1 3605 (Move ENTER_EXECUTOR to opcode 255)
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Python 3.14a1 3606 (Specialize CALL_KW)
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Python 3.14a1 3607 (Add pseudo instructions JUMP_IF_TRUE/FALSE)
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Python 3.14a1 3608 (Add support for slices)
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Python 3.14a2 3609 (Add LOAD_SMALL_INT and LOAD_CONST_IMMORTAL instructions, remove RETURN_CONST)
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Python 3.15 will start with 3650
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Please don't copy-paste the same pre-release tag for new entries above!!!
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You should always use the *upcoming* tag. For example, if 3.12a6 came out
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a week ago, I should put "Python 3.12a7" next to my new magic number.
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Whenever PYC_MAGIC_NUMBER is changed, the ranges in the magic_values array in
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PC/launcher.c must also be updated.
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*/
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#define PYC_MAGIC_NUMBER 3609
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/* This is equivalent to converting PYC_MAGIC_NUMBER to 2 bytes
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(little-endian) and then appending b'\r\n'. */
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#define PYC_MAGIC_NUMBER_TOKEN \
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((uint32_t)PYC_MAGIC_NUMBER | ((uint32_t)'\r' << 16) | ((uint32_t)'\n' << 24))
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#ifdef __cplusplus
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}
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#endif
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#endif // !Py_INTERNAL_MAGIC_NUMBER_H
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