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This commit is contained in:
purplerain 2023-08-16 22:26:55 +00:00
commit 2c0afcbbf3
Signed by: purplerain
GPG key ID: F42C07F07E2E35B7
64331 changed files with 5339189 additions and 0 deletions
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17
devel/clang-tools-extra/patches/patch-lib_Target_X86_X86TargetMachine_cpp Normal file
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@ -0,0 +1,17 @@
Add a clang pass that identifies potential ROP gadgets and replaces ROP
friendly instructions with safe alternatives. This initial commit fixes
3 instruction forms that will lower to include a c3 (return) byte.
Additional problematic instructions can be fixed incrementally using
this framework.
Index: lib/Target/X86/X86TargetMachine.cpp
--- lib/Target/X86/X86TargetMachine.cpp.orig
+++ lib/Target/X86/X86TargetMachine.cpp
@@ -546,6 +546,7 @@ void X86PassConfig::addPreEmitPass() {
addPass(createX86EvexToVexInsts());
addPass(createX86DiscriminateMemOpsPass());
addPass(createX86InsertPrefetchPass());
+ addPass(createX86FixupGadgetsPass());
addPass(createX86InsertX87waitPass());
}