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7b52d90c9e
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(); llvm-svn: 81991
59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
//===-- PPCMCAsmInfo.cpp - PPC 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 contains the declarations of the MCAsmInfoDarwin properties.
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//
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//===----------------------------------------------------------------------===//
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#include "PPCMCAsmInfo.h"
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using namespace llvm;
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PPCMCAsmInfoDarwin::PPCMCAsmInfoDarwin(bool is64Bit) {
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PCSymbol = ".";
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CommentString = ";";
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ExceptionsType = ExceptionHandling::Dwarf;
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if (!is64Bit)
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Data64bitsDirective = 0; // We can't emit a 64-bit unit in PPC32 mode.
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AssemblerDialect = 1; // New-Style mnemonics.
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}
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PPCLinuxMCAsmInfo::PPCLinuxMCAsmInfo(bool is64Bit) {
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CommentString = "#";
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GlobalPrefix = "";
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PrivateGlobalPrefix = ".L";
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UsedDirective = "\t# .no_dead_strip\t";
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WeakRefDirective = "\t.weak\t";
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// Uses '.section' before '.bss' directive
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UsesELFSectionDirectiveForBSS = true;
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// Debug Information
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AbsoluteDebugSectionOffsets = true;
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SupportsDebugInformation = true;
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PCSymbol = ".";
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// Set up DWARF directives
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HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
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// Exceptions handling
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if (!is64Bit)
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ExceptionsType = ExceptionHandling::Dwarf;
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AbsoluteEHSectionOffsets = false;
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ZeroDirective = "\t.space\t";
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SetDirective = "\t.set";
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Data64bitsDirective = is64Bit ? "\t.quad\t" : 0;
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AlignmentIsInBytes = false;
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LCOMMDirective = "\t.lcomm\t";
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AssemblerDialect = 0; // Old-Style mnemonics.
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}
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