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2013-01-23Add the heuristic to differentiate SSPStrong from SSPRequired.Bill Wendling
The requirements of the strong heuristic are: * A Protector is required for functions which contain an array, regardless of type or length. * A Protector is required for functions which contain a structure/union which contains an array, regardless of type or length. Note, there is no limit to the depth of nesting. * A protector is required when the address of a local variable (i.e., stack based variable) is exposed. (E.g., such as through a local whose address is taken as part of the RHS of an assignment or a local whose address is taken as part of a function argument.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173231 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23Add the IR attribute 'sspstrong'.Bill Wendling
SSPStrong applies a heuristic to insert stack protectors in these situations: * A Protector is required for functions which contain an array, regardless of type or length. * A Protector is required for functions which contain a structure/union which contains an array, regardless of type or length. Note, there is no limit to the depth of nesting. * A protector is required when the address of a local variable (i.e., stack based variable) is exposed. (E.g., such as through a local whose address is taken as part of the RHS of an assignment or a local whose address is taken as part of a function argument.) This patch implements the SSPString attribute to be equivalent to SSPRequired. This will change in a subsequent patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173230 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-13Rename test since it's not linux-specific.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161792 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-06Remove mistakenly added test.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107641 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-06Fix up -fstack-protector on linux to use the segmentEric Christopher
registers. Split out testcases per architecture and os now. Patch from Nelson Elhage. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107640 91177308-0d34-0410-b5e6-96231b3b80d8