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GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython (GH-103083)

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* The majority of the monitoring code is in instrumentation.c

* The new instrumentation bytecodes are in bytecodes.c

* legacy_tracing.c adapts the new API to the old sys.setrace and sys.setprofile APIs
This commit is contained in:
Mark Shannon 2023-04-12 12:04:55 +01:00 • committed by GitHub
parent dce2d38cb0
commit 411b169281
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44 changed files with 6029 additions and 1625 deletions
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27
Lib/opcode.py
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@ -83,6 +83,7 @@ def pseudo_op(name, op, real_ops):
def_op('INTERPRETER_EXIT', 3)
def_op('END_FOR', 4)
def_op('END_SEND', 5)
def_op('NOP', 9)
@ -91,6 +92,10 @@ def pseudo_op(name, op, real_ops):
def_op('UNARY_INVERT', 15)
# We reserve 17 as it is the initial value for the specializing counter
# This helps us catch cases where we attempt to execute a cache.
def_op('RESERVED', 17)
def_op('BINARY_SUBSCR', 25)
def_op('BINARY_SLICE', 26)
def_op('STORE_SLICE', 27)
@ -221,6 +226,28 @@ def pseudo_op(name, op, real_ops):
def_op('CALL_INTRINSIC_1', 173)
def_op('CALL_INTRINSIC_2', 174)
# Instrumented instructions
MIN_INSTRUMENTED_OPCODE = 238
def_op('INSTRUMENTED_POP_JUMP_IF_NONE', 238)
def_op('INSTRUMENTED_POP_JUMP_IF_NOT_NONE', 239)
def_op('INSTRUMENTED_RESUME', 240)
def_op('INSTRUMENTED_CALL', 241)
def_op('INSTRUMENTED_RETURN_VALUE', 242)
def_op('INSTRUMENTED_YIELD_VALUE', 243)
def_op('INSTRUMENTED_CALL_FUNCTION_EX', 244)
def_op('INSTRUMENTED_JUMP_FORWARD', 245)
def_op('INSTRUMENTED_JUMP_BACKWARD', 246)
def_op('INSTRUMENTED_RETURN_CONST', 247)
def_op('INSTRUMENTED_FOR_ITER', 248)
def_op('INSTRUMENTED_POP_JUMP_IF_FALSE', 249)
def_op('INSTRUMENTED_POP_JUMP_IF_TRUE', 250)
def_op('INSTRUMENTED_END_FOR', 251)
def_op('INSTRUMENTED_END_SEND', 252)
def_op('INSTRUMENTED_INSTRUCTION', 253)
def_op('INSTRUMENTED_LINE', 254)
# 255 is reserved
hasarg.extend([op for op in opmap.values() if op >= HAVE_ARGUMENT])
MIN_PSEUDO_OPCODE = 256