diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2017-06-16 21:03:24 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2017-06-16 21:03:24 +0000 |
| commit | 7c7aba6e5fef47a01a136be655b0a92cfd7090f6 (patch) | |
| tree | 99ec531924f6078534b100ab9d7696abce848099 /lib/Transforms/IPO/CrossDSOCFI.cpp | |
| parent | 7ab83427af0f77b59941ceba41d509d7d097b065 (diff) | |
Notes
Diffstat (limited to 'lib/Transforms/IPO/CrossDSOCFI.cpp')
| -rw-r--r-- | lib/Transforms/IPO/CrossDSOCFI.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Transforms/IPO/CrossDSOCFI.cpp b/lib/Transforms/IPO/CrossDSOCFI.cpp index 1b111de06157..d94aa5da8560 100644 --- a/lib/Transforms/IPO/CrossDSOCFI.cpp +++ b/lib/Transforms/IPO/CrossDSOCFI.cpp @@ -95,6 +95,17 @@ void CrossDSOCFI::buildCFICheck(Module &M) { } } + NamedMDNode *CfiFunctionsMD = M.getNamedMetadata("cfi.functions"); + if (CfiFunctionsMD) { + for (auto Func : CfiFunctionsMD->operands()) { + assert(Func->getNumOperands() >= 2); + for (unsigned I = 2; I < Func->getNumOperands(); ++I) + if (ConstantInt *TypeId = + extractNumericTypeId(cast<MDNode>(Func->getOperand(I).get()))) + TypeIds.insert(TypeId->getZExtValue()); + } + } + LLVMContext &Ctx = M.getContext(); Constant *C = M.getOrInsertFunction( "__cfi_check", Type::getVoidTy(Ctx), Type::getInt64Ty(Ctx), |