mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 03:02:36 +01:00
d090368b0c
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
27 lines
854 B
C++
27 lines
854 B
C++
//===-- CFGuard.h - CFGuard Transformations ---------------------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===---------------------------------------------------------------------===//
|
|
// Windows Control Flow Guard passes (/guard:cf).
|
|
//===---------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_TRANSFORMS_CFGUARD_H
|
|
#define LLVM_TRANSFORMS_CFGUARD_H
|
|
|
|
namespace llvm {
|
|
|
|
class FunctionPass;
|
|
|
|
/// Insert Control FLow Guard checks on indirect function calls.
|
|
FunctionPass *createCFGuardCheckPass();
|
|
|
|
/// Insert Control FLow Guard dispatches on indirect function calls.
|
|
FunctionPass *createCFGuardDispatchPass();
|
|
|
|
} // namespace llvm
|
|
|
|
#endif
|