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bpo-45711: Remove type and traceback from exc_info (GH-30122)

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* Do not PUSH/POP traceback or type to the stack as part of exc_info

* Remove exc_traceback and exc_type from _PyErr_StackItem

* Add to what's new, because this change breaks things like Cython
This commit is contained in:
Irit Katriel 2021-12-17 14:46:22 +00:00 • committed by GitHub
parent 62a0a2a25d
commit 396b58345f
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GPG key ID: 4AEE18F83AFDEB23
14 changed files with 228 additions and 389 deletions
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152
Lib/test/test_dis.py
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@ -310,33 +310,31 @@ dis_traceback = """\
>> 14 PUSH_EXC_INFO
%3d 16 LOAD_GLOBAL 0 (Exception)
18 JUMP_IF_NOT_EXC_MATCH 26 (to 52)
20 POP_TOP
22 STORE_FAST 0 (e)
24 POP_TOP
18 JUMP_IF_NOT_EXC_MATCH 24 (to 48)
20 STORE_FAST 0 (e)
%3d 26 LOAD_FAST 0 (e)
28 LOAD_ATTR 1 (__traceback__)
30 STORE_FAST 1 (tb)
32 POP_EXCEPT
34 LOAD_CONST 0 (None)
36 STORE_FAST 0 (e)
38 DELETE_FAST 0 (e)
%3d 22 LOAD_FAST 0 (e)
24 LOAD_ATTR 1 (__traceback__)
26 STORE_FAST 1 (tb)
28 POP_EXCEPT
30 LOAD_CONST 0 (None)
32 STORE_FAST 0 (e)
34 DELETE_FAST 0 (e)
%3d 40 LOAD_FAST 1 (tb)
42 RETURN_VALUE
>> 44 LOAD_CONST 0 (None)
46 STORE_FAST 0 (e)
48 DELETE_FAST 0 (e)
50 RERAISE 1
%3d 36 LOAD_FAST 1 (tb)
38 RETURN_VALUE
>> 40 LOAD_CONST 0 (None)
42 STORE_FAST 0 (e)
44 DELETE_FAST 0 (e)
46 RERAISE 1
%3d >> 52 RERAISE 0
>> 54 POP_EXCEPT_AND_RERAISE
%3d >> 48 RERAISE 0
>> 50 POP_EXCEPT_AND_RERAISE
ExceptionTable:
2 to 8 -> 14 [0]
14 to 24 -> 54 [3] lasti
26 to 30 -> 44 [3] lasti
44 to 52 -> 54 [3] lasti
14 to 20 -> 50 [1] lasti
22 to 26 -> 40 [1] lasti
40 to 48 -> 50 [1] lasti
""" % (TRACEBACK_CODE.co_firstlineno + 1,
TRACEBACK_CODE.co_firstlineno + 2,
TRACEBACK_CODE.co_firstlineno + 5,
@ -395,7 +393,7 @@ dis_tryfinally = """\
>> 22 POP_EXCEPT_AND_RERAISE
ExceptionTable:
2 to 2 -> 12 [0]
12 to 20 -> 22 [3] lasti
12 to 20 -> 22 [1] lasti
""" % (_tryfinally.__code__.co_firstlineno + 1,
_tryfinally.__code__.co_firstlineno + 2,
_tryfinally.__code__.co_firstlineno + 4,
@ -418,7 +416,7 @@ dis_tryfinallyconst = """\
22 RERAISE 0
>> 24 POP_EXCEPT_AND_RERAISE
ExceptionTable:
14 to 22 -> 24 [3] lasti
14 to 22 -> 24 [1] lasti
""" % (_tryfinallyconst.__code__.co_firstlineno + 1,
_tryfinallyconst.__code__.co_firstlineno + 2,
_tryfinallyconst.__code__.co_firstlineno + 4,
@ -864,7 +862,7 @@ Argument count: 0
Positional-only arguments: 0
Kw-only arguments: 0
Number of locals: 2
Stack size: 10
Stack size: 6
Flags: OPTIMIZED, NEWLOCALS, COROUTINE
Constants:
0: None
@ -1107,65 +1105,61 @@ expected_opinfo_jumpy = [
Instruction(opname='LOAD_CONST', opcode=100, arg=7, argval=0, argrepr='0', offset=108, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='BINARY_OP', opcode=122, arg=11, argval=11, argrepr='/', offset=110, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=112, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='JUMP_FORWARD', opcode=110, arg=14, argval=144, argrepr='to 144', offset=114, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='JUMP_FORWARD', opcode=110, arg=12, argval=140, argrepr='to 140', offset=114, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='PUSH_EXC_INFO', opcode=35, arg=None, argval=None, argrepr='', offset=116, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=2, argval='ZeroDivisionError', argrepr='ZeroDivisionError', offset=118, starts_line=22, is_jump_target=False, positions=None),
Instruction(opname='JUMP_IF_NOT_EXC_MATCH', opcode=121, arg=70, argval=140, argrepr='to 140', offset=120, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='JUMP_IF_NOT_EXC_MATCH', opcode=121, arg=68, argval=136, argrepr='to 136', offset=120, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=122, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=124, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=126, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=128, starts_line=23, is_jump_target=False, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=8, argval='Here we go, here we go, here we go...', argrepr="'Here we go, here we go, here we go...'", offset=130, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='CALL_NO_KW', opcode=169, arg=1, argval=1, argrepr='', offset=132, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=134, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_EXCEPT', opcode=89, arg=None, argval=None, argrepr='', offset=136, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='JUMP_FORWARD', opcode=110, arg=32, argval=204, argrepr='to 204', offset=138, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='RERAISE', opcode=119, arg=0, argval=0, argrepr='', offset=140, starts_line=22, is_jump_target=True, positions=None),
Instruction(opname='POP_EXCEPT_AND_RERAISE', opcode=37, arg=None, argval=None, argrepr='', offset=142, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='i', argrepr='i', offset=144, starts_line=25, is_jump_target=True, positions=None),
Instruction(opname='BEFORE_WITH', opcode=53, arg=None, argval=None, argrepr='', offset=146, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='STORE_FAST', opcode=125, arg=1, argval='dodgy', argrepr='dodgy', offset=148, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=150, starts_line=26, is_jump_target=False, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=9, argval='Never reach this', argrepr="'Never reach this'", offset=152, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='CALL_NO_KW', opcode=169, arg=1, argval=1, argrepr='', offset=154, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=156, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=0, argval=None, argrepr='None', offset=158, starts_line=25, is_jump_target=False, positions=None),
Instruction(opname='DUP_TOP', opcode=4, arg=None, argval=None, argrepr='', offset=160, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='DUP_TOP', opcode=4, arg=None, argval=None, argrepr='', offset=162, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='CALL_NO_KW', opcode=169, arg=3, argval=3, argrepr='', offset=164, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=166, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='JUMP_FORWARD', opcode=110, arg=11, argval=192, argrepr='to 192', offset=168, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='PUSH_EXC_INFO', opcode=35, arg=None, argval=None, argrepr='', offset=170, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='WITH_EXCEPT_START', opcode=49, arg=None, argval=None, argrepr='', offset=172, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_JUMP_IF_TRUE', opcode=115, arg=90, argval=180, argrepr='to 180', offset=174, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='RERAISE', opcode=119, arg=4, argval=4, argrepr='', offset=176, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_EXCEPT_AND_RERAISE', opcode=37, arg=None, argval=None, argrepr='', offset=178, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=180, starts_line=None, is_jump_target=True, positions=None),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=124, starts_line=23, is_jump_target=False, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=8, argval='Here we go, here we go, here we go...', argrepr="'Here we go, here we go, here we go...'", offset=126, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='CALL_NO_KW', opcode=169, arg=1, argval=1, argrepr='', offset=128, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=130, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_EXCEPT', opcode=89, arg=None, argval=None, argrepr='', offset=132, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='JUMP_FORWARD', opcode=110, arg=30, argval=196, argrepr='to 196', offset=134, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='RERAISE', opcode=119, arg=0, argval=0, argrepr='', offset=136, starts_line=22, is_jump_target=True, positions=None),
Instruction(opname='POP_EXCEPT_AND_RERAISE', opcode=37, arg=None, argval=None, argrepr='', offset=138, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='i', argrepr='i', offset=140, starts_line=25, is_jump_target=True, positions=None),
Instruction(opname='BEFORE_WITH', opcode=53, arg=None, argval=None, argrepr='', offset=142, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='STORE_FAST', opcode=125, arg=1, argval='dodgy', argrepr='dodgy', offset=144, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=146, starts_line=26, is_jump_target=False, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=9, argval='Never reach this', argrepr="'Never reach this'", offset=148, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='CALL_NO_KW', opcode=169, arg=1, argval=1, argrepr='', offset=150, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=152, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=0, argval=None, argrepr='None', offset=154, starts_line=25, is_jump_target=False, positions=None),
Instruction(opname='DUP_TOP', opcode=4, arg=None, argval=None, argrepr='', offset=156, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='DUP_TOP', opcode=4, arg=None, argval=None, argrepr='', offset=158, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='CALL_NO_KW', opcode=169, arg=3, argval=3, argrepr='', offset=160, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=162, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='JUMP_FORWARD', opcode=110, arg=9, argval=184, argrepr='to 184', offset=164, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='PUSH_EXC_INFO', opcode=35, arg=None, argval=None, argrepr='', offset=166, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='WITH_EXCEPT_START', opcode=49, arg=None, argval=None, argrepr='', offset=168, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_JUMP_IF_TRUE', opcode=115, arg=88, argval=176, argrepr='to 176', offset=170, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='RERAISE', opcode=119, arg=2, argval=2, argrepr='', offset=172, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_EXCEPT_AND_RERAISE', opcode=37, arg=None, argval=None, argrepr='', offset=174, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=176, starts_line=None, is_jump_target=True, positions=None),
Instruction(opname='POP_EXCEPT', opcode=89, arg=None, argval=None, argrepr='', offset=178, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=180, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=182, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=184, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_EXCEPT', opcode=89, arg=None, argval=None, argrepr='', offset=186, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=188, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=184, starts_line=28, is_jump_target=True, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=10, argval="OK, now we're done", argrepr='"OK, now we\'re done"', offset=186, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='CALL_NO_KW', opcode=169, arg=1, argval=1, argrepr='', offset=188, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=190, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=192, starts_line=28, is_jump_target=True, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=10, argval="OK, now we're done", argrepr='"OK, now we\'re done"', offset=194, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='CALL_NO_KW', opcode=169, arg=1, argval=1, argrepr='', offset=196, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=198, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=0, argval=None, argrepr='None', offset=200, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='RETURN_VALUE', opcode=83, arg=None, argval=None, argrepr='', offset=202, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='NOP', opcode=9, arg=None, argval=None, argrepr='', offset=204, starts_line=23, is_jump_target=True, positions=None),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=206, starts_line=28, is_jump_target=False, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=10, argval="OK, now we're done", argrepr='"OK, now we\'re done"', offset=208, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='CALL_NO_KW', opcode=169, arg=1, argval=1, argrepr='', offset=210, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=212, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=0, argval=None, argrepr='None', offset=214, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='RETURN_VALUE', opcode=83, arg=None, argval=None, argrepr='', offset=216, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='PUSH_EXC_INFO', opcode=35, arg=None, argval=None, argrepr='', offset=218, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=220, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=10, argval="OK, now we're done", argrepr='"OK, now we\'re done"', offset=222, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='CALL_NO_KW', opcode=169, arg=1, argval=1, argrepr='', offset=224, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=226, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='RERAISE', opcode=119, arg=0, argval=0, argrepr='', offset=228, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_EXCEPT_AND_RERAISE', opcode=37, arg=None, argval=None, argrepr='', offset=230, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=0, argval=None, argrepr='None', offset=192, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='RETURN_VALUE', opcode=83, arg=None, argval=None, argrepr='', offset=194, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='NOP', opcode=9, arg=None, argval=None, argrepr='', offset=196, starts_line=23, is_jump_target=True, positions=None),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=198, starts_line=28, is_jump_target=False, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=10, argval="OK, now we're done", argrepr='"OK, now we\'re done"', offset=200, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='CALL_NO_KW', opcode=169, arg=1, argval=1, argrepr='', offset=202, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=204, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=0, argval=None, argrepr='None', offset=206, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='RETURN_VALUE', opcode=83, arg=None, argval=None, argrepr='', offset=208, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='PUSH_EXC_INFO', opcode=35, arg=None, argval=None, argrepr='', offset=210, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=212, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='LOAD_CONST', opcode=100, arg=10, argval="OK, now we're done", argrepr='"OK, now we\'re done"', offset=214, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='CALL_NO_KW', opcode=169, arg=1, argval=1, argrepr='', offset=216, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=218, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='RERAISE', opcode=119, arg=0, argval=0, argrepr='', offset=220, starts_line=None, is_jump_target=False, positions=None),
Instruction(opname='POP_EXCEPT_AND_RERAISE', opcode=37, arg=None, argval=None, argrepr='', offset=222, starts_line=None, is_jump_target=False, positions=None),
]
# One last piece of inspect fodder to check the default line number handling