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untangle a TargetAsmInfo hack where ELFTargetAsmInfo would create a

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'unnamed' bss section, but some impls would want a named one.  Since
they don't have consistent behavior, just make each target do their
own thing, instead of doing something "sortof common" then having
targets change immutable objects later.

llvm-svn: 77165
This commit is contained in:
Chris Lattner 2009-07-26 19:23:28 +00:00
parent d555fec28c
commit 0f4d60ca90
16 changed files with 36 additions and 51 deletions
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2
include/llvm/Target/ELFTargetAsmInfo.h
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@ -23,7 +23,7 @@ namespace llvm {
class Type;
struct ELFTargetAsmInfo: public TargetAsmInfo {
explicit ELFTargetAsmInfo(const TargetMachine &TM);
ELFTargetAsmInfo(const TargetMachine &TM);
/// getSectionForMergeableConstant - Given a mergeable constant with the
/// specified size and relocation information, return a section that it

7
include/llvm/Target/TargetAsmInfo.h
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@ -254,7 +254,6 @@ namespace llvm {
explicit Section(unsigned F = SectionFlags::Invalid) : Flags(F) { }
public:
unsigned getEntitySize() const { return (Flags >> 24) & 0xFF; }
const std::string &getName() const { return Name; }
@ -679,11 +678,9 @@ namespace llvm {
virtual ~TargetAsmInfo();
const Section* getNamedSection(const char *Name,
unsigned Flags = SectionFlags::None,
bool Override = false) const;
unsigned Flags = SectionFlags::None) const;
const Section* getUnnamedSection(const char *Directive,
unsigned Flags = SectionFlags::None,
bool Override = false) const;
unsigned Flags = SectionFlags::None) const;
/// Measure the specified inline asm to determine an approximation of its
/// length.

3
lib/Target/ARM/ARMTargetAsmInfo.cpp
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@ -59,6 +59,9 @@ ARMELFTargetAsmInfo::ARMELFTargetAsmInfo(const ARMBaseTargetMachine &TM):
ARMTargetAsmInfo<ELFTargetAsmInfo>(TM) {
Subtarget = &TM.getSubtarget<ARMSubtarget>();
BSSSection_ = getUnnamedSection("\t.bss",
SectionFlags::Writable | SectionFlags::BSS);
NeedsSet = false;
HasLEB128 = true;
AbsoluteDebugSectionOffsets = true;

3
lib/Target/CellSPU/SPUTargetAsmInfo.cpp
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@ -36,8 +36,7 @@ SPULinuxTargetAsmInfo::SPULinuxTargetAsmInfo(const SPUTargetMachine &TM) :
// BSS section needs to be emitted as ".section"
BSSSection = "\t.section\t.bss";
BSSSection_ = getUnnamedSection("\t.section\t.bss",
SectionFlags::Writable | SectionFlags::BSS,
true);
SectionFlags::Writable | SectionFlags::BSS);
SupportsDebugInformation = true;
NeedsSet = true;

5
lib/Target/ELFTargetAsmInfo.cpp
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@ -22,14 +22,13 @@
#include "llvm/Target/ELFTargetAsmInfo.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetData.h"
using namespace llvm;
ELFTargetAsmInfo::ELFTargetAsmInfo(const TargetMachine &TM)
: TargetAsmInfo(TM) {
BSSSection_ = getUnnamedSection("\t.bss",
SectionFlags::Writable | SectionFlags::BSS);
BSSSection_ = getUnnamedSection("\t.bss",
SectionFlags::Writable | SectionFlags::BSS);
ReadOnlySection = getNamedSection("\t.rodata", SectionFlags::None);
TLSDataSection = getNamedSection("\t.tdata",
SectionFlags::Writable | SectionFlags::TLS);

7
lib/Target/MSP430/MSP430TargetAsmInfo.cpp
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@ -12,11 +12,12 @@
//===----------------------------------------------------------------------===//
#include "MSP430TargetAsmInfo.h"
#include "MSP430TargetMachine.h"
using namespace llvm;
MSP430TargetAsmInfo::MSP430TargetAsmInfo(const MSP430TargetMachine &TM)
MSP430TargetAsmInfo::MSP430TargetAsmInfo(const TargetMachine &TM)
: ELFTargetAsmInfo(TM) {
AlignmentIsInBytes = false;
BSSSection_ = getUnnamedSection("\t.bss",
SectionFlags::Writable | SectionFlags::BSS);
}

7
lib/Target/MSP430/MSP430TargetAsmInfo.h
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@ -14,16 +14,11 @@
#ifndef MSP430TARGETASMINFO_H
#define MSP430TARGETASMINFO_H
#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/Target/ELFTargetAsmInfo.h"
namespace llvm {
// Forward declaration.
class MSP430TargetMachine;
struct MSP430TargetAsmInfo : public ELFTargetAsmInfo {
explicit MSP430TargetAsmInfo(const MSP430TargetMachine &TM);
explicit MSP430TargetAsmInfo(const TargetMachine &TM);
};
} // namespace llvm

5
lib/Target/Mips/MipsTargetAsmInfo.cpp
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@ -13,8 +13,6 @@
#include "MipsTargetAsmInfo.h"
#include "MipsTargetMachine.h"
#include "llvm/GlobalVariable.h"
using namespace llvm;
MipsTargetAsmInfo::MipsTargetAsmInfo(const MipsTargetMachine &TM)
@ -32,6 +30,9 @@ MipsTargetAsmInfo::MipsTargetAsmInfo(const MipsTargetMachine &TM)
BSSSection = "\t.section\t.bss";
CStringSection = ".rodata.str";
BSSSection_ = getUnnamedSection("\t.bss",
SectionFlags::Writable | SectionFlags::BSS);
if (!TM.getSubtarget<MipsSubtarget>().hasABICall())
JumpTableDirective = "\t.word\t";
else

9
lib/Target/Mips/MipsTargetAsmInfo.h
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@ -14,23 +14,14 @@
#ifndef MIPSTARGETASMINFO_H
#define MIPSTARGETASMINFO_H
#include "MipsSubtarget.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/ELFTargetAsmInfo.h"
namespace llvm {
// Forward declaration.
class GlobalValue;
class MipsTargetMachine;
struct MipsTargetAsmInfo : public ELFTargetAsmInfo {
explicit MipsTargetAsmInfo(const MipsTargetMachine &TM);
private:
const MipsSubtarget *Subtarget;
};
} // namespace llvm

11
lib/Target/PowerPC/PPCTargetAsmInfo.cpp
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@ -50,13 +50,11 @@ PPCDarwinTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
}
const char *
PPCDarwinTargetAsmInfo::getEHGlobalPrefix() const
{
PPCDarwinTargetAsmInfo::getEHGlobalPrefix() const {
const PPCSubtarget* Subtarget = &TM.getSubtarget<PPCSubtarget>();
if (Subtarget->getDarwinVers() > 9)
return PrivateGlobalPrefix;
else
return "";
return "";
}
PPCLinuxTargetAsmInfo::PPCLinuxTargetAsmInfo(const PPCTargetMachine &TM) :
@ -74,9 +72,8 @@ PPCLinuxTargetAsmInfo::PPCLinuxTargetAsmInfo(const PPCTargetMachine &TM) :
BSSSection = "\t.section\t\".sbss\",\"aw\",@nobits";
// PPC/Linux normally uses named section for BSS.
BSSSection_ = getNamedSection("\t.bss",
SectionFlags::Writable | SectionFlags::BSS,
/* Override */ true);
BSSSection_ = getNamedSection("\t.bss",
SectionFlags::Writable | SectionFlags::BSS);
// Debug Information
AbsoluteDebugSectionOffsets = true;

9
lib/Target/Sparc/SparcTargetAsmInfo.cpp
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@ -15,8 +15,8 @@
#include "llvm/ADT/SmallVector.h"
using namespace llvm;
SparcELFTargetAsmInfo::SparcELFTargetAsmInfo(const TargetMachine &TM):
ELFTargetAsmInfo(TM) {
SparcELFTargetAsmInfo::SparcELFTargetAsmInfo(const TargetMachine &TM)
: ELFTargetAsmInfo(TM) {
Data16bitsDirective = "\t.half\t";
Data32bitsDirective = "\t.word\t";
Data64bitsDirective = 0; // .xword is only supported by V9.
@ -27,9 +27,8 @@ SparcELFTargetAsmInfo::SparcELFTargetAsmInfo(const TargetMachine &TM):
CStringSection=".rodata.str";
// Sparc normally uses named section for BSS.
BSSSection_ = getNamedSection("\t.bss",
SectionFlags::Writable | SectionFlags::BSS,
/* Override */ true);
BSSSection_ = getNamedSection("\t.bss",
SectionFlags::Writable | SectionFlags::BSS);
}

1
lib/Target/Sparc/SparcTargetAsmInfo.h
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@ -14,7 +14,6 @@
#ifndef SPARCTARGETASMINFO_H
#define SPARCTARGETASMINFO_H
#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/Target/ELFTargetAsmInfo.h"
namespace llvm {

3
lib/Target/SystemZ/SystemZTargetAsmInfo.cpp
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@ -27,4 +27,7 @@ SystemZTargetAsmInfo::SystemZTargetAsmInfo(const SystemZTargetMachine &TM)
PCSymbol = ".";
NonexecutableStackDirective = "\t.section\t.note.GNU-stack,\"\",@progbits";
BSSSection_ = getUnnamedSection("\t.bss",
SectionFlags::Writable | SectionFlags::BSS);
}

1
lib/Target/SystemZ/SystemZTargetAsmInfo.h
View File

@ -14,7 +14,6 @@
#ifndef SystemZTARGETASMINFO_H
#define SystemZTARGETASMINFO_H
#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/Target/ELFTargetAsmInfo.h"
namespace llvm {

11
lib/Target/TargetAsmInfo.cpp
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@ -389,12 +389,12 @@ TargetAsmInfo::getSectionForMergeableConstant(SectionKind Kind) const {
}
const Section *TargetAsmInfo::getNamedSection(const char *Name, unsigned Flags,
bool Override) const {
const Section *TargetAsmInfo::getNamedSection(const char *Name,
unsigned Flags) const {
Section &S = Sections[Name];
// This is newly-created section, set it up properly.
if (S.Flags == SectionFlags::Invalid || Override) {
if (S.Name.empty()) {
S.Flags = Flags | SectionFlags::Named;
S.Name = Name;
}
@ -403,12 +403,11 @@ const Section *TargetAsmInfo::getNamedSection(const char *Name, unsigned Flags,
}
const Section*
TargetAsmInfo::getUnnamedSection(const char *Directive, unsigned Flags,
bool Override) const {
TargetAsmInfo::getUnnamedSection(const char *Directive, unsigned Flags) const {
Section& S = Sections[Directive];
// This is newly-created section, set it up properly.
if (S.Flags == SectionFlags::Invalid || Override) {
if (S.Name.empty()) {
S.Flags = Flags & ~SectionFlags::Named;
S.Name = Directive;
}

3
lib/Target/X86/X86TargetAsmInfo.cpp
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@ -128,6 +128,9 @@ X86ELFTargetAsmInfo::X86ELFTargetAsmInfo(const X86TargetMachine &TM):
// Set up DWARF directives
HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
BSSSection_ = getUnnamedSection("\t.bss",
SectionFlags::Writable | SectionFlags::BSS);
// Debug Information
AbsoluteDebugSectionOffsets = true;
SupportsDebugInformation = true;