It seems you are missing interceptors for wcstof, wcstod, and wcstold as well.
Could this be responsible for PR21579 as well? http://llvm.org/bugs/show_bug.cgi?id=21579 /Eric On Tue, Nov 18, 2014 at 2:44 AM, Evgeniy Stepanov <[email protected]> wrote: > We are missing interceptors for: wcstol, wcstoul, wcstoll, wcstoull. > > On Mon Nov 17 2014 at 11:02:13 PM Kostya Serebryany <[email protected]> > wrote: > >> if msan does not see what's goign on inside libc we need to teach it -- >> it already has a bunch of libc interceptors, but clearly not all. >> Do you know what libc function is called here? >> Or how to reproduce the reports you've been seeing? >> >> On Fri, Nov 14, 2014 at 2:23 PM, Eric Fiselier <[email protected]> wrote: >> >>> Author: ericwf >>> Date: Fri Nov 14 16:23:57 2014 >>> New Revision: 222052 >>> >>> URL: http://llvm.org/viewvc/llvm-project?rev=222052&view=rev >>> Log: >>> Initialize pointer in string conversion helpers to prevent MSAN >>> diagnostic. >>> >>> Since the initialization of the pointer happens across the libc library >>> boundry >>> MSAN will not know the pointer was initialized. This fixes MSAN failures >>> in >>> test/strings/string.conversions. >>> >>> Modified: >>> libcxx/trunk/src/string.cpp >>> >>> Modified: libcxx/trunk/src/string.cpp >>> URL: >>> http://llvm.org/viewvc/llvm-project/libcxx/trunk/src/string.cpp?rev=222052&r1=222051&r2=222052&view=diff >>> >>> ============================================================================== >>> --- libcxx/trunk/src/string.cpp (original) >>> +++ libcxx/trunk/src/string.cpp Fri Nov 14 16:23:57 2014 >>> @@ -63,7 +63,7 @@ inline >>> V >>> as_integer_helper(const string& func, const S& str, size_t* idx, int >>> base, F f) >>> { >>> - typename S::value_type* ptr; >>> + typename S::value_type* ptr = nullptr; >>> const typename S::value_type* const p = str.c_str(); >>> typename remove_reference<decltype(errno)>::type errno_save = errno; >>> errno = 0; >>> @@ -180,7 +180,7 @@ inline >>> V >>> as_float_helper(const string& func, const S& str, size_t* idx, F f ) >>> { >>> - typename S::value_type* ptr; >>> + typename S::value_type* ptr = nullptr; >>> const typename S::value_type* const p = str.c_str(); >>> typename remove_reference<decltype(errno)>::type errno_save = errno; >>> errno = 0; >>> >>> >>> _______________________________________________ >>> cfe-commits mailing list >>> [email protected] >>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits >>> >> >>
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