22556065de667f8c5b2f85abb0603ddeac62f436
1 //===-- ARMMCAsmInfo.cpp - ARM 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 ARMMCAsmInfo properties.
11 //
12 //===----------------------------------------------------------------------===//
14 #include "ARMMCAsmInfo.h"
15 #include "llvm/Support/CommandLine.h"
16 #include "llvm/ADT/Triple.h"
18 using namespace llvm;
20 void ARMMCAsmInfoDarwin::anchor() { }
22 ARMMCAsmInfoDarwin::ARMMCAsmInfoDarwin(StringRef TT) {
23 Triple TheTriple(TT);
24 if ((TheTriple.getArch() == Triple::armeb) ||
25 (TheTriple.getArch() == Triple::thumbeb))
26 IsLittleEndian = false;
28 Data64bitsDirective = nullptr;
29 CommentString = "@";
30 Code16Directive = ".code\t16";
31 Code32Directive = ".code\t32";
32 UseDataRegionDirectives = true;
34 SupportsDebugInformation = true;
36 // Exceptions handling
37 ExceptionsType = ExceptionHandling::SjLj;
39 UseIntegratedAssembler = true;
40 }
42 void ARMELFMCAsmInfo::anchor() { }
44 ARMELFMCAsmInfo::ARMELFMCAsmInfo(StringRef TT) {
45 Triple TheTriple(TT);
46 if ((TheTriple.getArch() == Triple::armeb) ||
47 (TheTriple.getArch() == Triple::thumbeb))
48 IsLittleEndian = false;
50 // ".comm align is in bytes but .align is pow-2."
51 AlignmentIsInBytes = false;
53 Data64bitsDirective = nullptr;
54 CommentString = "@";
55 Code16Directive = ".code\t16";
56 Code32Directive = ".code\t32";
58 SupportsDebugInformation = true;
60 // Exceptions handling
61 switch (TheTriple.getOS()) {
62 case Triple::NetBSD:
63 ExceptionsType = ExceptionHandling::DwarfCFI;
64 break;
65 default:
66 ExceptionsType = ExceptionHandling::ARM;
67 break;
68 }
70 // foo(plt) instead of foo@plt
71 UseParensForSymbolVariant = true;
73 UseIntegratedAssembler = true;
74 }
76 void ARMELFMCAsmInfo::setUseIntegratedAssembler(bool Value) {
77 UseIntegratedAssembler = Value;
78 if (!UseIntegratedAssembler) {
79 // gas doesn't handle VFP register names in cfi directives,
80 // so don't use register names with external assembler.
81 // See https://sourceware.org/bugzilla/show_bug.cgi?id=16694
82 DwarfRegNumForCFI = true;
83 }
84 }
86 void ARMCOFFMCAsmInfoMicrosoft::anchor() { }
88 ARMCOFFMCAsmInfoMicrosoft::ARMCOFFMCAsmInfoMicrosoft() {
89 AlignmentIsInBytes = false;
91 PrivateGlobalPrefix = "$M";
92 PrivateLabelPrefix = "$M";
93 }
95 void ARMCOFFMCAsmInfoGNU::anchor() { }
97 ARMCOFFMCAsmInfoGNU::ARMCOFFMCAsmInfoGNU() {
98 AlignmentIsInBytes = false;
99 HasSingleParameterDotFile = true;
101 CommentString = "@";
102 Code16Directive = ".code\t16";
103 Code32Directive = ".code\t32";
104 PrivateGlobalPrefix = ".L";
105 PrivateLabelPrefix = ".L";
107 SupportsDebugInformation = true;
108 ExceptionsType = ExceptionHandling::None;
109 UseParensForSymbolVariant = true;
111 UseIntegratedAssembler = false;
112 DwarfRegNumForCFI = true;
113 }