1 //===-- PPCTargetAsmInfo.cpp - PPC asm properties ---------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the declarations of the DarwinTargetAsmInfo properties.
12 //===----------------------------------------------------------------------===//
14 #include "PPCTargetAsmInfo.h"
15 #include "PPCTargetMachine.h"
16 #include "llvm/Function.h"
19 PPCTargetAsmInfo::PPCTargetAsmInfo(const PPCTargetMachine &TM) {
20 bool isPPC64 = TM.getSubtargetImpl()->isPPC64();
22 ZeroDirective = "\t.space\t";
23 SetDirective = "\t.set";
24 Data64bitsDirective = isPPC64 ? "\t.quad\t" : 0;
25 AlignmentIsInBytes = false;
26 LCOMMDirective = "\t.lcomm\t";
27 InlineAsmStart = "# InlineAsm Start";
28 InlineAsmEnd = "# InlineAsm End";
29 AssemblerDialect = TM.getSubtargetImpl()->getAsmFlavor();
33 DarwinTargetAsmInfo::DarwinTargetAsmInfo(const PPCTargetMachine &TM)
34 : PPCTargetAsmInfo(TM)
39 PrivateGlobalPrefix = "L";
40 ConstantPoolSection = "\t.const\t";
41 JumpTableDataSection = ".const";
42 CStringSection = "\t.cstring";
43 FourByteConstantSection = "\t.literal4\n";
44 EightByteConstantSection = "\t.literal8\n";
45 ReadOnlySection = "\t.const\n";
46 if (TM.getRelocationModel() == Reloc::Static) {
47 StaticCtorsSection = ".constructor";
48 StaticDtorsSection = ".destructor";
50 StaticCtorsSection = ".mod_init_func";
51 StaticDtorsSection = ".mod_term_func";
53 UsedDirective = "\t.no_dead_strip\t";
54 WeakDefDirective = "\t.weak_definition ";
55 WeakRefDirective = "\t.weak_reference ";
56 HiddenDirective = "\t.private_extern\t";
57 SupportsExceptionHandling = true;
58 NeedsIndirectEncoding = true;
63 ".section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support";
64 DwarfExceptionSection = ".section __DATA,__gcc_except_tab";
65 GlobalEHDirective = "\t.globl\t";
66 SupportsWeakOmittedEHFrame = false;
68 DwarfAbbrevSection = ".section __DWARF,__debug_abbrev,regular,debug";
69 DwarfInfoSection = ".section __DWARF,__debug_info,regular,debug";
70 DwarfLineSection = ".section __DWARF,__debug_line,regular,debug";
71 DwarfFrameSection = ".section __DWARF,__debug_frame,regular,debug";
72 DwarfPubNamesSection = ".section __DWARF,__debug_pubnames,regular,debug";
73 DwarfPubTypesSection = ".section __DWARF,__debug_pubtypes,regular,debug";
74 DwarfStrSection = ".section __DWARF,__debug_str,regular,debug";
75 DwarfLocSection = ".section __DWARF,__debug_loc,regular,debug";
76 DwarfARangesSection = ".section __DWARF,__debug_aranges,regular,debug";
77 DwarfRangesSection = ".section __DWARF,__debug_ranges,regular,debug";
78 DwarfMacInfoSection = ".section __DWARF,__debug_macinfo,regular,debug";
80 // In non-PIC modes, emit a special label before jump tables so that the
81 // linker can perform more accurate dead code stripping.
82 if (TM.getRelocationModel() != Reloc::PIC_) {
83 // Emit a local label that is preserved until the linker runs.
84 JumpTableSpecialLabelPrefix = "l";
88 LinuxTargetAsmInfo::LinuxTargetAsmInfo(const PPCTargetMachine &TM)
89 : PPCTargetAsmInfo(TM)
93 PrivateGlobalPrefix = "";
94 ConstantPoolSection = "\t.section .rodata.cst4\t";
95 JumpTableDataSection = ".section .rodata.cst4";
96 CStringSection = "\t.section\t.rodata";
97 StaticCtorsSection = ".section\t.ctors,\"aw\",@progbits";
98 StaticDtorsSection = ".section\t.dtors,\"aw\",@progbits";
99 UsedDirective = "\t# .no_dead_strip\t";
100 WeakRefDirective = "\t.weak\t";
101 BSSSection = "\t.section\t\".sbss\",\"aw\",@nobits";
104 AbsoluteDebugSectionOffsets = true;
105 SupportsDebugInformation = true;
106 DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"\",@progbits";
107 DwarfInfoSection = "\t.section\t.debug_info,\"\",@progbits";
108 DwarfLineSection = "\t.section\t.debug_line,\"\",@progbits";
109 DwarfFrameSection = "\t.section\t.debug_frame,\"\",@progbits";
110 DwarfPubNamesSection ="\t.section\t.debug_pubnames,\"\",@progbits";
111 DwarfPubTypesSection ="\t.section\t.debug_pubtypes,\"\",@progbits";
112 DwarfStrSection = "\t.section\t.debug_str,\"\",@progbits";
113 DwarfLocSection = "\t.section\t.debug_loc,\"\",@progbits";
114 DwarfARangesSection = "\t.section\t.debug_aranges,\"\",@progbits";
115 DwarfRangesSection = "\t.section\t.debug_ranges,\"\",@progbits";
116 DwarfMacInfoSection = "\t.section\t.debug_macinfo,\"\",@progbits";
118 ReadOnlySection = "\t.section\t.rodata";
119 FourByteConstantSection = "\t.section\t.rodata.cst4,\"aM\",@progbits,4";
120 EightByteConstantSection = "\t.section\t.rodata.cst8,\"aM\",@progbits,8";
121 SixteenByteConstantSection = "\t.section\t.rodata.cst16,\"aM\",@progbits,16";
124 // Set up DWARF directives
125 HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
127 // Exceptions handling
128 if (!TM.getSubtargetImpl()->isPPC64())
129 SupportsExceptionHandling = true;
130 AbsoluteEHSectionOffsets = false;
131 DwarfEHFrameSection = "\t.section\t.eh_frame,\"aw\",@progbits";
132 DwarfExceptionSection = "\t.section\t.gcc_except_table,\"a\",@progbits";