SecBSD's official ports repository

2023-08-16 22:26:55 +00:00 · 2023-08-16 22:26:55 +00:00 · 2c0afcbbf3
commit 2c0afcbbf3
64331 changed files with 5339189 additions and 0 deletions
--- a/devel/llvm/patches/patch-lib_Target_AArch64_AArch64AsmPrinter_cpp
+++ b/devel/llvm/patches/patch-lib_Target_AArch64_AArch64AsmPrinter_cpp
@ -0,0 +1,25 @@
+Add retguard for arm64.
+
+Index: lib/Target/AArch64/AArch64AsmPrinter.cpp
+--- lib/Target/AArch64/AArch64AsmPrinter.cpp.orig
+++ lib/Target/AArch64/AArch64AsmPrinter.cpp
+@@ -1488,6 +1488,19 @@ void AArch64AsmPrinter::emitInstruction(const MachineI
+   case AArch64::SEH_EpilogEnd:
+     TS->emitARM64WinCFIEpilogEnd();
+     return;
+
+  case AArch64::RETGUARD_JMP_TRAP:
+    {
+    MCSymbol *RGSuccSym = OutContext.createTempSymbol();
+    /* Compare and branch */
+    EmitToStreamer(*OutStreamer, MCInstBuilder(AArch64::CBZX)
+        .addReg(MI->getOperand(0).getReg())
+        .addExpr(MCSymbolRefExpr::create(RGSuccSym, OutContext)));
+    EmitToStreamer(*OutStreamer, MCInstBuilder(AArch64::BRK).addImm(1));
+    OutStreamer->emitLabel(RGSuccSym);
+    return;
+    }
+
+   }
+ 
+   // Finally, do the automated lowerings for everything else.