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Implement stack protectors as function attributes: "ssp" and "sspreq".

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59202 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2008-11-13 01:02:14 +00:00
parent 7fc610f073
commit e9e6bdf27f
7 changed files with 27 additions and 44 deletions
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lib/CodeGen/LLVMTargetMachine.cpp
+1 -15
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@@ -60,19 +60,6 @@ static cl::opt<cl::boolOrDefault>
EnableFastISelOption("fast-isel", cl::Hidden,
cl::desc("Enable the experimental \"fast\" instruction selector"));
// Enable stack protectors.
static cl::opt<SSP::StackProtectorLevel>
EnableStackProtector("enable-stack-protector",
cl::desc("Stack canary protection level: (default: off)"),
cl::init(SSP::OFF),
cl::values(clEnumValN(SSP::ALL, "all",
"All functions get stack protectors."),
clEnumValN(SSP::SOME, "some",
"Only functions requiring stack protectors get them."),
clEnumValN(SSP::OFF, "off",
"No functions get stack protectors."),
clEnumValEnd));
FileModel::Model
LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM,
raw_ostream &Out,
@@ -178,8 +165,7 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM, bool Fast) {
if (!Fast)
PM.add(createCodeGenPreparePass(getTargetLowering()));
if (EnableStackProtector != SSP::OFF)
PM.add(createStackProtectorPass(EnableStackProtector, getTargetLowering()));
PM.add(createStackProtectorPass(getTargetLowering()));
if (PrintISelInput)
PM.add(createPrintFunctionPass("\n\n"