8000 Disable getc_unlocked() with MemorySanitizer. (GH-10499) · python/cpython@e6c77d8 · GitHub
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Commit e6c77d8

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gpsheadgpshead
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Disable getc_unlocked() with MemorySanitizer. (GH-10499)
clang's MemorySanitizer understand getc() but does not understand getc_unlocked(). Workaround: Don't use it on msan builds.
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‎Objects/fileobject.c

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -3,7 +3,8 @@
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#define PY_SSIZE_T_CLEAN
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#include "Python.h"
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6-
#ifdef HAVE_GETC_UNLOCKED
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#if defined(HAVE_GETC_UNLOCKED) && !defined(MEMORY_SANITIZER)
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/* clang MemorySanitizer doesn't yet understand getc_unlocked. */
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#define GETC(f) getc_unlocked(f)
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#define FLOCKFILE(f) flockfile(f)
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#define FUNLOCKFILE(f) funlockfile(f)

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