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GeezerVison is showing github.com — gh-142913: fix `_testinternalcapi` build failure due to undefined JIT symbols by cocolato · Pull Request #143949 · python/cpython

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@cocolato

@cocolato cocolato commented Jan 17, 2026 •
edited by bedevere-app Bot
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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:

  • _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.

  • Issue: Add test coverage for interpreter loop generator overridden insts #142913

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@cocolato
fix jit test cases
f3208af
@bedevere-app bedevere-app Bot mentioned this pull request Jan 17, 2026
Add test coverage for interpreter loop generator overridden insts #142913
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@bedevere-app bedevere-app Bot added the awaiting review label Jan 17, 2026
@cocolato 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
@kumaraditya303 kumaraditya303 added the skip news label Jan 17, 2026
@kumaraditya303
kumaraditya303 requested review from DinoV and mpage January 17, 2026 07:01
@cocolato cocolato mentioned this pull request Jan 17, 2026
gh-142913: Export JIT functions for _testinternalcapi #143958
Merged
@cocolato cocolato closed this Jan 17, 2026
@cocolato
cocolato deleted the fix_broken_test branch January 20, 2026 14:12
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@DinoV DinoV Awaiting requested review from DinoV
@mpage mpage Awaiting requested review from mpage

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2 participants

@cocolato @kumaraditya303
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