bug 21124 builtin____sprintf_chk warnings

[Sam Parker]

Hi,

 

Attached is a patch to address the issue raised in 
https://llvm.org/bugs/show_bug.cgi?id=21124 and allows clang to issue
memory overflow warnings for builtin___sprintf_chk in more situations
than g++ does. It handles integer literals with their format specifiers
and flags as well as string literals, const char* references and
floating point literals if hex formatting is selected.

 

Cheers,

Sam

 

Sam Parker

Graduate Compiler Engineer

ARM Ltd, Cambridge

 

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