d157a9bc8b
Summary: A new function pass (Transforms/CFGuard/CFGuard.cpp) inserts CFGuard checks on indirect function calls, using either the check mechanism (X86, ARM, AArch64) or or the dispatch mechanism (X86-64). The check mechanism requires a new calling convention for the supported targets. The dispatch mechanism adds the target as an operand bundle, which is processed by SelectionDAG. Another pass (CodeGen/CFGuardLongjmp.cpp) identifies and emits valid longjmp targets, as required by /guard:cf. This feature is enabled using the `cfguard` CC1 option. Reviewers: thakis, rnk, theraven, pcc Subscribers: ychen, hans, metalcanine, dmajor, tomrittervg, alex, mehdi_amini, mgorny, javed.absar, kristof.beyls, hiraditya, steven_wu, dexonsmith, cfe-commits, llvm-commits Tags: #clang, #llvm Differential Revision: https://reviews.llvm.org/D65761
54 lines
2.4 KiB
C++
54 lines
2.4 KiB
C++
//=== ARMCallingConv.h - ARM Custom Calling Convention Routines -*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the entry points for ARM calling convention analysis.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_ARM_ARMCALLINGCONV_H
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#define LLVM_LIB_TARGET_ARM_ARMCALLINGCONV_H
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#include "llvm/CodeGen/CallingConvLower.h"
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namespace llvm {
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bool CC_ARM_AAPCS(unsigned ValNo, MVT ValVT, MVT LocVT,
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CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags,
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CCState &State);
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bool CC_ARM_AAPCS_VFP(unsigned ValNo, MVT ValVT, MVT LocVT,
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CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags,
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CCState &State);
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bool CC_ARM_APCS(unsigned ValNo, MVT ValVT, MVT LocVT,
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CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags,
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CCState &State);
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bool CC_ARM_APCS_GHC(unsigned ValNo, MVT ValVT, MVT LocVT,
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CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags,
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CCState &State);
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bool FastCC_ARM_APCS(unsigned ValNo, MVT ValVT, MVT LocVT,
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CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags,
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CCState &State);
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bool CC_ARM_Win32_CFGuard_Check(unsigned ValNo, MVT ValVT, MVT LocVT,
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CCValAssign::LocInfo LocInfo,
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ISD::ArgFlagsTy ArgFlags, CCState &State);
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bool RetCC_ARM_AAPCS(unsigned ValNo, MVT ValVT, MVT LocVT,
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CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags,
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CCState &State);
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bool RetCC_ARM_AAPCS_VFP(unsigned ValNo, MVT ValVT, MVT LocVT,
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CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags,
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CCState &State);
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bool RetCC_ARM_APCS(unsigned ValNo, MVT ValVT, MVT LocVT,
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CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags,
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CCState &State);
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bool RetFastCC_ARM_APCS(unsigned ValNo, MVT ValVT, MVT LocVT,
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CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags,
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CCState &State);
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} // namespace llvm
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#endif
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