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Summary:
This CL adds a weak check for a Vtable prefix: for a well-formed
Vtable, we require the prefix to be within [-1<<20; 1<<20].
Practically, this solves most of the known cases when UBSan segfaults
without providing any useful diagnostics.
Reviewers: pcc
Subscribers: kubabrecka
Differential Revision: http://reviews.llvm.org/D19750
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@271560 91177308-0d34-0410-b5e6-96231b3b80d8
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Also includes execution tests for the feature.
Differential Revision: http://reviews.llvm.org/D10269
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@240111 91177308-0d34-0410-b5e6-96231b3b80d8
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Missed this one previously.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@172730 91177308-0d34-0410-b5e6-96231b3b80d8
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has got us to the wrong offset within an object.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@170423 91177308-0d34-0410-b5e6-96231b3b80d8
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pointing at the bad location and a snippet of nearby memory values. This is
strictly best-effort; reading these bytes to display the note could lead to a
seg fault, and that's explicitly OK.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@170415 91177308-0d34-0410-b5e6-96231b3b80d8
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bogus gcc warning. Take this opportunity to move the declaration to the header,
since it's part of the API of this file.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@166965 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@166660 91177308-0d34-0410-b5e6-96231b3b80d8
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