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https://github.com/c64scene-ar/llvm-6502.git
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8c6ed05157
Eliminate the PersonalityPrefix/Suffix & NeedsIndirectEncoding fields from MAI: they aren't part of the asm syntax, they are related to the structure of the object file. To replace their functionality, add a new TLOF::getSymbolForDwarfGlobalReference method which asks targets to decide how to reference a global from EH in a pc-relative way. The default implementation just returns the symbol. The default darwin implementation references the symbol through an indirect $non_lazy_ptr stub. The bizarro x86-64 darwin specialization handles the weird "foo@GOTPCREL+4" hack. DwarfException.cpp now uses this to emit the reference to the symbol in the right way, and this also eliminates another horrible hack from DwarfException.cpp: - if (strcmp(MAI->getPersonalitySuffix(), "+4@GOTPCREL")) - O << "-" << MAI->getPCSymbol(); git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81991 91177308-0d34-0410-b5e6-96231b3b80d8
53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
//===-- MCAsmInfoDarwin.cpp - Darwin asm properties -------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines target asm properties related what form asm statements
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// should take in general on Darwin-based targets
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/MC/MCAsmInfoDarwin.h"
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using namespace llvm;
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MCAsmInfoDarwin::MCAsmInfoDarwin() {
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// Common settings for all Darwin targets.
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// Syntax:
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GlobalPrefix = "_";
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PrivateGlobalPrefix = "L";
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LinkerPrivateGlobalPrefix = "l";
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NeedsSet = true;
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AllowQuotesInName = true;
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HasSingleParameterDotFile = false;
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AlignmentIsInBytes = false;
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InlineAsmStart = " InlineAsm Start";
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InlineAsmEnd = " InlineAsm End";
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// Directives:
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WeakDefDirective = "\t.weak_definition ";
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WeakRefDirective = "\t.weak_reference ";
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HiddenDirective = "\t.private_extern ";
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LCOMMDirective = "\t.lcomm\t";
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ZeroDirective = "\t.space\t"; // ".space N" emits N zeros.
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ZeroFillDirective = "\t.zerofill\t"; // Uses .zerofill
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SetDirective = "\t.set";
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ProtectedDirective = "\t.globl\t";
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HasDotTypeDotSizeDirective = false;
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UsedDirective = "\t.no_dead_strip\t";
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// _foo.eh symbols are currently always exported so that the linker knows
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// about them. This is not necessary on 10.6 and later, but it
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// doesn't hurt anything.
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// FIXME: I need to get this from Triple.
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Is_EHSymbolPrivate = false;
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GlobalEHDirective = "\t.globl\t";
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SupportsWeakOmittedEHFrame = false;
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}
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