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| author | David Majnemer <david.majnemer@gmail.com> | 2022-09-16 18:59:15 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2022-09-16 19:39:48 +0000 |
| commit | 8a868d8859f9da23ee051848863045208c17ab47 (patch) | |
| tree | adb8c407c34b9587105b1ed162f025302c1c03d8 /llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp | |
| parent | e0bc76eb23f82bbe3abae9d17544d9cc515a5ca0 (diff) | |
| download | llvm-8a868d8859f9da23ee051848863045208c17ab47.zip llvm-8a868d8859f9da23ee051848863045208c17ab47.tar.gz llvm-8a868d8859f9da23ee051848863045208c17ab47.tar.bz2 | |
Revert "Revert "[clang, llvm] Add __declspec(safebuffers), support it in CodeView""
This reverts commit cd20a1828605887699579789b5433111d5bc0319 and adds a
"let Heading" to NoStackProtectorDocs.
Diffstat (limited to 'llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp index 16213af..a97eb9f 100644 --- a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp @@ -1498,8 +1498,16 @@ void CodeViewDebug::beginFunctionImpl(const MachineFunction *MF) { FPO |= FrameProcedureOptions::MarkedInline; if (GV.hasFnAttribute(Attribute::Naked)) FPO |= FrameProcedureOptions::Naked; - if (MFI.hasStackProtectorIndex()) + if (MFI.hasStackProtectorIndex()) { FPO |= FrameProcedureOptions::SecurityChecks; + if (GV.hasFnAttribute(Attribute::StackProtectStrong) || + GV.hasFnAttribute(Attribute::StackProtectReq)) { + FPO |= FrameProcedureOptions::StrictSecurityChecks; + } + } else if (!GV.hasStackProtectorFnAttr()) { + // __declspec(safebuffers) disables stack guards. + FPO |= FrameProcedureOptions::SafeBuffers; + } FPO |= FrameProcedureOptions(uint32_t(CurFn->EncodedLocalFramePtrReg) << 14U); FPO |= FrameProcedureOptions(uint32_t(CurFn->EncodedParamFramePtrReg) << 16U); if (Asm->TM.getOptLevel() != CodeGenOpt::None && |