1 //===-- PPCMCAsmInfo.cpp - PPC asm properties -----------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file contains the declarations of the MCAsmInfoDarwin properties. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "PPCMCAsmInfo.h" 15 #include "llvm/ADT/Triple.h" 16 17 using namespace llvm; 18 19 void PPCMCAsmInfoDarwin::anchor() { } 20 21 PPCMCAsmInfoDarwin::PPCMCAsmInfoDarwin(bool is64Bit, const Triple& T) { 22 if (is64Bit) { 23 PointerSize = CalleeSaveStackSlotSize = 8; 24 } 25 IsLittleEndian = false; 26 27 CommentString = ";"; 28 ExceptionsType = ExceptionHandling::DwarfCFI; 29 30 if (!is64Bit) 31 Data64bitsDirective = nullptr; // We can't emit a 64-bit unit in PPC32 mode. 32 33 AssemblerDialect = 1; // New-Style mnemonics. 34 SupportsDebugInformation= true; // Debug information. 35 36 // The installed assembler for OSX < 10.6 lacks some directives. 37 // FIXME: this should really be a check on the assembler characteristics 38 // rather than OS version 39 if (T.isMacOSX() && T.isMacOSXVersionLT(10, 6)) 40 HasWeakDefCanBeHiddenDirective = false; 41 42 UseIntegratedAssembler = true; 43 } 44 45 void PPCLinuxMCAsmInfo::anchor() { } 46 47 PPCLinuxMCAsmInfo::PPCLinuxMCAsmInfo(bool is64Bit, const Triple& T) { 48 if (is64Bit) { 49 PointerSize = CalleeSaveStackSlotSize = 8; 50 } 51 IsLittleEndian = T.getArch() == Triple::ppc64le; 52 53 // ".comm align is in bytes but .align is pow-2." 54 AlignmentIsInBytes = false; 55 56 CommentString = "#"; 57 58 // Uses '.section' before '.bss' directive 59 UsesELFSectionDirectiveForBSS = true; 60 61 // Debug Information 62 SupportsDebugInformation = true; 63 64 DollarIsPC = true; 65 66 // Set up DWARF directives 67 HasLEB128 = true; // Target asm supports leb128 directives (little-endian) 68 MinInstAlignment = 4; 69 70 // Exceptions handling 71 ExceptionsType = ExceptionHandling::DwarfCFI; 72 73 ZeroDirective = "\t.space\t"; 74 Data64bitsDirective = is64Bit ? "\t.quad\t" : nullptr; 75 AssemblerDialect = 1; // New-Style mnemonics. 76 77 if (T.getOS() == llvm::Triple::FreeBSD || 78 (T.getOS() == llvm::Triple::NetBSD && !is64Bit) || 79 (T.getOS() == llvm::Triple::OpenBSD && !is64Bit)) 80 UseIntegratedAssembler = true; 81 } 82 83
