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Once we start instrumenting globals, all addresses including those of string literals
that we pass to the operating system will start being tagged. Since we can't rely
on the operating system to be able to cope with these addresses, we need to untag
them before passing them to the operating system. This change introduces a macro
that does so and uses it everywhere it is needed.
Differential Revision: https://reviews.llvm.org/D65768
llvm-svn: 367938
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Summary:
It's a cross of calloc and realloc. Sanitizers implement calloc-like check for size
overflow.
Reviewers: vitalybuka, kcc
Subscribers: kubamracek, #sanitizers, llvm-commits
Tags: #sanitizers, #llvm
Differential Revision: https://reviews.llvm.org/D61108
llvm-svn: 359708
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NDK r19 includes a sysroot that can be used directly by the compiler
without creating a standalone toolchain, so we just need a handful
of flags to point Clang there.
Differential Revision: https://reviews.llvm.org/D57733
llvm-svn: 353139
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Check size limit before rounding up, otherwise malloc((size_t)-1)
would happily allocate 0 bytes.
Steal a nice test case from scudo.
llvm-svn: 341612
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