75c7843086
Most patch merges inspired from patrick's work on base-clang. Consumer ports fixed/marked BROKEN as discussed with bcallah@ and rsadowski@. powerpc tests and PLIST fixes from cwen@, thanks! rust-1.36 tests by semarie@
32 lines
1.4 KiB
Plaintext
32 lines
1.4 KiB
Plaintext
$OpenBSD: patch-include_llvm_CodeGen_AsmPrinter_h,v 1.5 2019/07/06 15:06:36 jca Exp $
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Use int3 trap padding between functions instead of trapsleds with a leading jump.
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Index: include/llvm/CodeGen/AsmPrinter.h
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--- include/llvm/CodeGen/AsmPrinter.h.orig
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+++ include/llvm/CodeGen/AsmPrinter.h
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@@ -348,6 +348,11 @@ class AsmPrinter : public MachineFunctionPass { (publi
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/// correctness.
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void EmitAlignment(unsigned NumBits, const GlobalObject *GV = nullptr) const;
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+ /// Emit an alignment directive to the specified power of two boundary,
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+ /// like EmitAlignment, but call EmitTrapToAlignment to fill with
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+ /// trap instructions instead of NOPs.
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+ void EmitTrapAlignment(unsigned NumBits, const GlobalObject *GO = nullptr) const;
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+
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/// Lower the specified LLVM Constant to an MCExpr.
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virtual const MCExpr *lowerConstant(const Constant *CV);
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@@ -408,6 +413,11 @@ class AsmPrinter : public MachineFunctionPass { (publi
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virtual void EmitInstruction(const MachineInstr *) {
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llvm_unreachable("EmitInstruction not implemented");
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}
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+
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+ /// Emit an alignment directive to the specified power
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+ /// of two boundary, but use Trap instructions for alignment
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+ /// sections that should never be executed.
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+ virtual void EmitTrapToAlignment(unsigned NumBits) const;
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/// Return the symbol for the specified constant pool entry.
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virtual MCSymbol *GetCPISymbol(unsigned CPID) const;
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