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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[BOLT] [3.12] Python 3.12.7 --enable bolt option not working","articleBody":"# Bug report\n\n### Bug description:\n\nHi together,\n\nAfter updating llvm-bolt to 19.1.0 it is not possible to use the --enable-bolt function anymore.\nFollowing can be found in the log:\n```\nBOLT-INFO: 0 out of 5950 functions in the binary (0.0%) have non-empty execution profile\nBOLT-INSTRUMENTER: Number of indirect call site descriptors: 7119\nBOLT-INSTRUMENTER: Number of indirect call target descriptors: 5874\nBOLT-INSTRUMENTER: Number of function descriptors: 5874\nBOLT-INSTRUMENTER: Number of branch counters: 78400\nBOLT-INSTRUMENTER: Number of ST leaf node counters: 40936\nBOLT-INSTRUMENTER: Number of direct call counters: 0\nBOLT-INSTRUMENTER: Total number of counters: 119336\nBOLT-INSTRUMENTER: Total size of counters: 954688 bytes (static alloc memory)\nBOLT-INSTRUMENTER: Total size of string table emitted: 133862 bytes in file\nBOLT-INSTRUMENTER: Total size of descriptors: 7642344 bytes in file\nBOLT-INSTRUMENTER: Profile will be saved to file /tmp/pkg/src/Python-3.12.7/libpython3.12.so.1.0.bolt\nBOLT-INFO: 65850 instructions were shortened\nBOLT-INFO: removed 134 empty blocks\nBOLT-INFO: UCE removed 1155 blocks and 71042 bytes of code\nBOLT-INFO: padding code to 0xe00000 to accommodate hot text\nBOLT-INFO: output linked against instrumentation runtime library, lib entry point is 0xf90930\nBOLT-INFO: clear procedure is 0xf8c380\nBOLT-INFO: patched build-id (flipped last bit)\nBOLT-INFO: setting __bolt_runtime_start to 0xf908e0\nBOLT-INFO: setting __bolt_runtime_fini to 0xf90930\nBOLT-INFO: setting __hot_start to 0x800000\nBOLT-INFO: setting __hot_end to 0xdf7438\nBOLT-ERROR: unable to get new address corresponding to input address 0x1a6e11 in function sre_ucs1_match/1. Consider adding this function to --skip-funcs=...\nmake[1]: *** [Makefile:856: profile-bolt-stamp] Error 1\nmake[1]: Leaving directory '/tmp/pkg/src/Python-3.12.7'\nmake: *** [Makefile:885: bolt-opt] Error 2\n==\u003e ERROR: A failure occurred in build().\n``` \n\n\nso, it appears to fail at the instrumentation and suggest to add `--skip-funcs=sre_ucs1_match/*`.\n\n### CPython versions tested on:\n\n3.12\n\n### Operating systems tested on:\n\nLinux","author":{"url":"https://github.com/ptr1337","@type":"Person","name":"ptr1337"},"datePublished":"2024-10-03T18:33:35.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":17},"url":"https://github.com/124948/cpython/issues/124948"}