LLVM  10.0.0svn
MCAsmInfoELF.cpp
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1 //===- MCAsmInfoELF.cpp - ELF asm properties ------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file defines target asm properties related what form asm statements
10 // should take in general on ELF-based targets
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "llvm/MC/MCAsmInfoELF.h"
15 #include "llvm/BinaryFormat/ELF.h"
16 #include "llvm/MC/MCContext.h"
17 #include "llvm/MC/MCSectionELF.h"
18 
19 using namespace llvm;
20 
21 void MCAsmInfoELF::anchor() {}
22 
23 MCSection *MCAsmInfoELF::getNonexecutableStackSection(MCContext &Ctx) const {
25  return nullptr;
26  return Ctx.getELFSection(".note.GNU-stack", ELF::SHT_PROGBITS, 0);
27 }
28 
30  HasIdentDirective = true;
31  WeakRefDirective = "\t.weak\t";
32  PrivateGlobalPrefix = ".L";
33  PrivateLabelPrefix = ".L";
34 }
Instances of this class represent a uniqued identifier for a section in the current translation unit...
Definition: MCSection.h:39
StringRef PrivateLabelPrefix
This prefix is used for labels for basic blocks.
Definition: MCAsmInfo.h:132
This class represents lattice values for constants.
Definition: AllocatorList.h:23
bool UsesNonexecutableStackSection
Targets which have non-executable stacks by default can set this to false to disable the special sect...
Definition: MCAsmInfoELF.h:23
Context object for machine code objects.
Definition: MCContext.h:65
bool HasIdentDirective
True if the target has a .ident directive, this is true for ELF targets.
Definition: MCAsmInfo.h:291
const char * WeakRefDirective
This directive, if non-null, is used to declare a global as being a weak undefined symbol...
Definition: MCAsmInfo.h:306
MCSectionELF * getELFSection(const Twine &Section, unsigned Type, unsigned Flags)
Definition: MCContext.h:424
StringRef PrivateGlobalPrefix
This prefix is used for globals like constant pool entries that are completely private to the ...
Definition: MCAsmInfo.h:128