The fix in 949b5ec removed the Tier 2 interpreter loop from Modules/_testinternalcapi/interpreter.c, but test_cases.c.h is generated from Python/bytecodes.c and still contains the TRACE_RECORD and TRACE_END instructions which call:
_PyJit_translate_single_bytecode_to_trace()
_PyJit_TryInitializeTracing()
_PyJit_FinalizeTracing()
These functions are defined in Python/optimizer.c but are not exported (missing PyAPI_FUNC), causing link failures when building the shared library.
cocolato
changed the title
gh-142913: _testinternalcapi build failure due to undefined JIT symbols
gh-142913: fix _testinternalcapi build failure due to undefined JIT symbols
Jan 17, 2026
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Root cause:
The fix in 949b5ec removed the Tier 2 interpreter loop from Modules/_testinternalcapi/interpreter.c, but test_cases.c.h is generated from Python/bytecodes.c and still contains the TRACE_RECORD and TRACE_END instructions which call:
These functions are defined in Python/optimizer.c but are not exported (missing PyAPI_FUNC), causing link failures when building the shared library.