http://llvm.org/bugs/show_bug.cgi?id=16362
Bug ID: 16362
Summary: ASan: Method to bypass memcpy-param-overlap and other
string function checks
Product: compiler-rt
Version: unspecified
Hardware: Macintosh
OS: MacOS X
Status: NEW
Severity: enhancement
Priority: P
Component: compiler-rt
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
memmove == memcpy on Darwin, so calls to memmove with overlapping ranges are
flagged as errors, even though it is not technically “undefined” behavior, it’s
just unadvertised.
It would be nice to have a way to bypass specific string functions at runtime
rather than turn off a whole class of checks, especially on Darwin, where
memcpy is implemented as memmove.
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