From 114baee1fa017daefad2339c77b45b9ca3d79a41 Mon Sep 17 00:00:00 2001 From: Bill Wendling Date: Wed, 23 Jan 2013 06:41:41 +0000 Subject: Add the IR attribute 'sspstrong'. 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 --- lib/IR/Attributes.cpp | 3 +++ 1 file changed, 3 insertions(+) (limited to 'lib/IR') diff --git a/lib/IR/Attributes.cpp b/lib/IR/Attributes.cpp index 4bd2391..964a404 100644 --- a/lib/IR/Attributes.cpp +++ b/lib/IR/Attributes.cpp @@ -206,6 +206,8 @@ std::string Attribute::getAsString() const { Result += "ssp "; if (hasAttribute(Attribute::StackProtectReq)) Result += "sspreq "; + if (hasAttribute(Attribute::StackProtectStrong)) + Result += "sspstrong "; if (hasAttribute(Attribute::NoRedZone)) Result += "noredzone "; if (hasAttribute(Attribute::NoImplicitFloat)) @@ -487,6 +489,7 @@ uint64_t AttributeImpl::getAttrMask(Attribute::AttrKind Val) { case Attribute::AddressSafety: return 1ULL << 32; case Attribute::MinSize: return 1ULL << 33; case Attribute::NoDuplicate: return 1ULL << 34; + case Attribute::StackProtectStrong: return 1ULL << 35; } llvm_unreachable("Unsupported attribute type"); } -- cgit v1.1