mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-31 08:16:47 +00:00
2e4da5e4ab
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75493 91177308-0d34-0410-b5e6-96231b3b80d8
938 lines
35 KiB
C++
938 lines
35 KiB
C++
//===-- llvm/Target/TargetAsmInfo.h - Asm info ------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file contains a class to be used as the basis for target specific
|
|
// asm writers. This class primarily takes care of global printing constants,
|
|
// which are used in very similar ways across all targets.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_TARGET_ASM_INFO_H
|
|
#define LLVM_TARGET_ASM_INFO_H
|
|
|
|
#include "llvm/ADT/DenseMap.h"
|
|
#include "llvm/ADT/StringMap.h"
|
|
#include "llvm/Support/DataTypes.h"
|
|
#include <string>
|
|
|
|
namespace llvm {
|
|
// DWARF encoding query type
|
|
namespace DwarfEncoding {
|
|
enum Target {
|
|
Data = 0,
|
|
CodeLabels = 1,
|
|
Functions = 2
|
|
};
|
|
}
|
|
|
|
namespace SectionKind {
|
|
enum Kind {
|
|
Unknown = 0, ///< Custom section
|
|
Text, ///< Text section
|
|
Data, ///< Data section
|
|
DataRel, ///< Contains data that has relocations
|
|
DataRelLocal, ///< Contains data that has only local relocations
|
|
BSS, ///< BSS section
|
|
ROData, ///< Readonly data section
|
|
DataRelRO, ///< Contains data that is otherwise readonly
|
|
DataRelROLocal, ///< Contains r/o data with only local relocations
|
|
RODataMergeStr, ///< Readonly data section (mergeable strings)
|
|
RODataMergeConst, ///< Readonly data section (mergeable constants)
|
|
SmallData, ///< Small data section
|
|
SmallBSS, ///< Small bss section
|
|
SmallROData, ///< Small readonly section
|
|
ThreadData, ///< Initialized TLS data objects
|
|
ThreadBSS ///< Uninitialized TLS data objects
|
|
};
|
|
|
|
static inline bool isReadOnly(Kind K) {
|
|
return (K == SectionKind::ROData ||
|
|
K == SectionKind::RODataMergeConst ||
|
|
K == SectionKind::RODataMergeStr ||
|
|
K == SectionKind::SmallROData);
|
|
}
|
|
|
|
static inline bool isBSS(Kind K) {
|
|
return (K == SectionKind::BSS ||
|
|
K == SectionKind::SmallBSS);
|
|
}
|
|
}
|
|
|
|
namespace SectionFlags {
|
|
const unsigned Invalid = -1U;
|
|
const unsigned None = 0;
|
|
const unsigned Code = 1 << 0; ///< Section contains code
|
|
const unsigned Writeable = 1 << 1; ///< Section is writeable
|
|
const unsigned BSS = 1 << 2; ///< Section contains only zeroes
|
|
const unsigned Mergeable = 1 << 3; ///< Section contains mergeable data
|
|
const unsigned Strings = 1 << 4; ///< Section contains C-type strings
|
|
const unsigned TLS = 1 << 5; ///< Section contains thread-local data
|
|
const unsigned Debug = 1 << 6; ///< Section contains debug data
|
|
const unsigned Linkonce = 1 << 7; ///< Section is linkonce
|
|
const unsigned Small = 1 << 8; ///< Section is small
|
|
const unsigned TypeFlags = 0xFF;
|
|
// Some gap for future flags
|
|
const unsigned Named = 1 << 23; ///< Section is named
|
|
const unsigned EntitySize = 0xFF << 24; ///< Entity size for mergeable stuff
|
|
|
|
static inline unsigned getEntitySize(unsigned Flags) {
|
|
return (Flags >> 24) & 0xFF;
|
|
}
|
|
|
|
static inline unsigned setEntitySize(unsigned Flags, unsigned Size) {
|
|
return ((Flags & ~EntitySize) | ((Size & 0xFF) << 24));
|
|
}
|
|
|
|
struct KeyInfo {
|
|
static inline unsigned getEmptyKey() { return Invalid; }
|
|
static inline unsigned getTombstoneKey() { return Invalid - 1; }
|
|
static unsigned getHashValue(const unsigned &Key) { return Key; }
|
|
static bool isEqual(unsigned LHS, unsigned RHS) { return LHS == RHS; }
|
|
static bool isPod() { return true; }
|
|
};
|
|
|
|
typedef DenseMap<unsigned, std::string, KeyInfo> FlagsStringsMapType;
|
|
}
|
|
|
|
class TargetMachine;
|
|
class CallInst;
|
|
class GlobalValue;
|
|
class Type;
|
|
class Mangler;
|
|
|
|
class Section {
|
|
friend class TargetAsmInfo;
|
|
friend class StringMapEntry<Section>;
|
|
friend class StringMap<Section>;
|
|
|
|
std::string Name;
|
|
unsigned Flags;
|
|
explicit Section(unsigned F = SectionFlags::Invalid):Flags(F) { }
|
|
|
|
public:
|
|
|
|
bool isNamed() const { return Flags & SectionFlags::Named; }
|
|
unsigned getEntitySize() const { return (Flags >> 24) & 0xFF; }
|
|
|
|
const std::string& getName() const { return Name; }
|
|
unsigned getFlags() const { return Flags; }
|
|
};
|
|
|
|
/// TargetAsmInfo - This class is intended to be used as a base class for asm
|
|
/// properties and features specific to the target.
|
|
class TargetAsmInfo {
|
|
private:
|
|
mutable StringMap<Section> Sections;
|
|
mutable SectionFlags::FlagsStringsMapType FlagsStrings;
|
|
protected:
|
|
/// TM - The current TargetMachine.
|
|
const TargetMachine &TM;
|
|
|
|
//===------------------------------------------------------------------===//
|
|
// Properties to be set by the target writer, used to configure asm printer.
|
|
//
|
|
|
|
/// TextSection - Section directive for standard text.
|
|
///
|
|
const Section *TextSection; // Defaults to ".text".
|
|
|
|
/// DataSection - Section directive for standard data.
|
|
///
|
|
const Section *DataSection; // Defaults to ".data".
|
|
|
|
/// BSSSection - Section directive for uninitialized data. Null if this
|
|
/// target doesn't support a BSS section.
|
|
///
|
|
const char *BSSSection; // Default to ".bss".
|
|
const Section *BSSSection_;
|
|
|
|
/// ReadOnlySection - This is the directive that is emitted to switch to a
|
|
/// read-only section for constant data (e.g. data declared const,
|
|
/// jump tables).
|
|
const Section *ReadOnlySection; // Defaults to NULL
|
|
|
|
/// SmallDataSection - This is the directive that is emitted to switch to a
|
|
/// small data section.
|
|
///
|
|
const Section *SmallDataSection; // Defaults to NULL
|
|
|
|
/// SmallBSSSection - This is the directive that is emitted to switch to a
|
|
/// small bss section.
|
|
///
|
|
const Section *SmallBSSSection; // Defaults to NULL
|
|
|
|
/// SmallRODataSection - This is the directive that is emitted to switch to
|
|
/// a small read-only data section.
|
|
///
|
|
const Section *SmallRODataSection; // Defaults to NULL
|
|
|
|
/// TLSDataSection - Section directive for Thread Local data.
|
|
///
|
|
const Section *TLSDataSection; // Defaults to ".tdata".
|
|
|
|
/// TLSBSSSection - Section directive for Thread Local uninitialized data.
|
|
/// Null if this target doesn't support a BSS section.
|
|
///
|
|
const Section *TLSBSSSection; // Defaults to ".tbss".
|
|
|
|
/// ZeroFillDirective - Directive for emitting a global to the ZeroFill
|
|
/// section on this target. Null if this target doesn't support zerofill.
|
|
const char *ZeroFillDirective; // Default is null.
|
|
|
|
/// NonexecutableStackDirective - Directive for declaring to the
|
|
/// linker and beyond that the emitted code does not require stack
|
|
/// memory to be executable.
|
|
const char *NonexecutableStackDirective; // Default is null.
|
|
|
|
/// NeedsSet - True if target asm treats expressions in data directives
|
|
/// as linktime-relocatable. For assembly-time computation, we need to
|
|
/// use a .set. Thus:
|
|
/// .set w, x-y
|
|
/// .long w
|
|
/// is computed at assembly time, while
|
|
/// .long x-y
|
|
/// is relocated if the relative locations of x and y change at linktime.
|
|
/// We want both these things in different places.
|
|
bool NeedsSet; // Defaults to false.
|
|
|
|
/// MaxInstLength - This is the maximum possible length of an instruction,
|
|
/// which is needed to compute the size of an inline asm.
|
|
unsigned MaxInstLength; // Defaults to 4.
|
|
|
|
/// PCSymbol - The symbol used to represent the current PC. Used in PC
|
|
/// relative expressions.
|
|
const char *PCSymbol; // Defaults to "$".
|
|
|
|
/// SeparatorChar - This character, if specified, is used to separate
|
|
/// instructions from each other when on the same line. This is used to
|
|
/// measure inline asm instructions.
|
|
char SeparatorChar; // Defaults to ';'
|
|
|
|
/// CommentColumn - This indicates the comment num (zero-based) at
|
|
/// which asm comments should be printed.
|
|
unsigned CommentColumn; // Defaults to 60
|
|
|
|
/// CommentString - This indicates the comment character used by the
|
|
/// assembler.
|
|
const char *CommentString; // Defaults to "#"
|
|
|
|
/// GlobalPrefix - If this is set to a non-empty string, it is prepended
|
|
/// onto all global symbols. This is often used for "_" or ".".
|
|
const char *GlobalPrefix; // Defaults to ""
|
|
|
|
/// PrivateGlobalPrefix - This prefix is used for globals like constant
|
|
/// pool entries that are completely private to the .s file and should not
|
|
/// have names in the .o file. This is often "." or "L".
|
|
const char *PrivateGlobalPrefix; // Defaults to "."
|
|
|
|
/// LessPrivateGlobalPrefix - This prefix is used for symbols that should
|
|
/// be passed through the assembler but be removed by the linker. This
|
|
/// is "l" on Darwin, currently used for some ObjC metadata.
|
|
const char *LessPrivateGlobalPrefix; // Defaults to ""
|
|
|
|
/// JumpTableSpecialLabelPrefix - If not null, a extra (dead) label is
|
|
/// emitted before jump tables with the specified prefix.
|
|
const char *JumpTableSpecialLabelPrefix; // Default to null.
|
|
|
|
/// GlobalVarAddrPrefix/Suffix - If these are nonempty, these strings
|
|
/// will enclose any GlobalVariable (that isn't a function)
|
|
///
|
|
const char *GlobalVarAddrPrefix; // Defaults to ""
|
|
const char *GlobalVarAddrSuffix; // Defaults to ""
|
|
|
|
/// FunctionAddrPrefix/Suffix - If these are nonempty, these strings
|
|
/// will enclose any GlobalVariable that points to a function.
|
|
/// For example, this is used by the IA64 backend to materialize
|
|
/// function descriptors, by decorating the ".data8" object with the
|
|
/// @verbatim @fptr( ) @endverbatim
|
|
/// link-relocation operator.
|
|
///
|
|
const char *FunctionAddrPrefix; // Defaults to ""
|
|
const char *FunctionAddrSuffix; // Defaults to ""
|
|
|
|
/// PersonalityPrefix/Suffix - If these are nonempty, these strings will
|
|
/// enclose any personality function in the common frame section.
|
|
///
|
|
const char *PersonalityPrefix; // Defaults to ""
|
|
const char *PersonalitySuffix; // Defaults to ""
|
|
|
|
/// NeedsIndirectEncoding - If set, we need to set the indirect encoding bit
|
|
/// for EH in Dwarf.
|
|
///
|
|
bool NeedsIndirectEncoding; // Defaults to false
|
|
|
|
/// InlineAsmStart/End - If these are nonempty, they contain a directive to
|
|
/// emit before and after an inline assembly statement.
|
|
const char *InlineAsmStart; // Defaults to "#APP\n"
|
|
const char *InlineAsmEnd; // Defaults to "#NO_APP\n"
|
|
|
|
/// AssemblerDialect - Which dialect of an assembler variant to use.
|
|
unsigned AssemblerDialect; // Defaults to 0
|
|
|
|
/// StringConstantPrefix - Prefix for FEs to use when generating unnamed
|
|
/// constant strings. These names get run through the Mangler later; if
|
|
/// you want the Mangler not to add the GlobalPrefix as well,
|
|
/// use '\1' as the first character.
|
|
const char *StringConstantPrefix; // Defaults to ".str"
|
|
|
|
/// AllowQuotesInName - This is true if the assembler allows for complex
|
|
/// symbol names to be surrounded in quotes. This defaults to false.
|
|
bool AllowQuotesInName;
|
|
|
|
//===--- Data Emission Directives -------------------------------------===//
|
|
|
|
/// ZeroDirective - this should be set to the directive used to get some
|
|
/// number of zero bytes emitted to the current section. Common cases are
|
|
/// "\t.zero\t" and "\t.space\t". If this is set to null, the
|
|
/// Data*bitsDirective's will be used to emit zero bytes.
|
|
const char *ZeroDirective; // Defaults to "\t.zero\t"
|
|
const char *ZeroDirectiveSuffix; // Defaults to ""
|
|
|
|
/// AsciiDirective - This directive allows emission of an ascii string with
|
|
/// the standard C escape characters embedded into it.
|
|
const char *AsciiDirective; // Defaults to "\t.ascii\t"
|
|
|
|
/// AscizDirective - If not null, this allows for special handling of
|
|
/// zero terminated strings on this target. This is commonly supported as
|
|
/// ".asciz". If a target doesn't support this, it can be set to null.
|
|
const char *AscizDirective; // Defaults to "\t.asciz\t"
|
|
|
|
/// DataDirectives - These directives are used to output some unit of
|
|
/// integer data to the current section. If a data directive is set to
|
|
/// null, smaller data directives will be used to emit the large sizes.
|
|
const char *Data8bitsDirective; // Defaults to "\t.byte\t"
|
|
const char *Data16bitsDirective; // Defaults to "\t.short\t"
|
|
const char *Data32bitsDirective; // Defaults to "\t.long\t"
|
|
const char *Data64bitsDirective; // Defaults to "\t.quad\t"
|
|
|
|
/// getASDirective - Targets can override it to provide different data
|
|
/// directives for various sizes and non-default address spaces.
|
|
virtual const char *getASDirective(unsigned size,
|
|
unsigned AS) const {
|
|
assert(AS > 0 && "Dont know the directives for default addr space");
|
|
return NULL;
|
|
}
|
|
|
|
//===--- Alignment Information ----------------------------------------===//
|
|
|
|
/// AlignDirective - The directive used to emit round up to an alignment
|
|
/// boundary.
|
|
///
|
|
const char *AlignDirective; // Defaults to "\t.align\t"
|
|
|
|
/// AlignmentIsInBytes - If this is true (the default) then the asmprinter
|
|
/// emits ".align N" directives, where N is the number of bytes to align to.
|
|
/// Otherwise, it emits ".align log2(N)", e.g. 3 to align to an 8 byte
|
|
/// boundary.
|
|
bool AlignmentIsInBytes; // Defaults to true
|
|
|
|
/// TextAlignFillValue - If non-zero, this is used to fill the executable
|
|
/// space created as the result of a alignment directive.
|
|
unsigned TextAlignFillValue;
|
|
|
|
//===--- Section Switching Directives ---------------------------------===//
|
|
|
|
/// SwitchToSectionDirective - This is the directive used when we want to
|
|
/// emit a global to an arbitrary section. The section name is emited after
|
|
/// this.
|
|
const char *SwitchToSectionDirective; // Defaults to "\t.section\t"
|
|
|
|
/// TextSectionStartSuffix - This is printed after each start of section
|
|
/// directive for text sections.
|
|
const char *TextSectionStartSuffix; // Defaults to "".
|
|
|
|
/// DataSectionStartSuffix - This is printed after each start of section
|
|
/// directive for data sections.
|
|
const char *DataSectionStartSuffix; // Defaults to "".
|
|
|
|
/// SectionEndDirectiveSuffix - If non-null, the asm printer will close each
|
|
/// section with the section name and this suffix printed.
|
|
const char *SectionEndDirectiveSuffix;// Defaults to null.
|
|
|
|
/// ConstantPoolSection - This is the section that we SwitchToSection right
|
|
/// before emitting the constant pool for a function.
|
|
const char *ConstantPoolSection; // Defaults to "\t.section .rodata"
|
|
|
|
/// JumpTableDataSection - This is the section that we SwitchToSection right
|
|
/// before emitting the jump tables for a function when the relocation model
|
|
/// is not PIC.
|
|
const char *JumpTableDataSection; // Defaults to "\t.section .rodata"
|
|
|
|
/// JumpTableDirective - if non-null, the directive to emit before a jump
|
|
/// table.
|
|
const char *JumpTableDirective;
|
|
|
|
/// CStringSection - If not null, this allows for special handling of
|
|
/// cstring constants (null terminated string that does not contain any
|
|
/// other null bytes) on this target. This is commonly supported as
|
|
/// ".cstring".
|
|
const char *CStringSection; // Defaults to NULL
|
|
const Section *CStringSection_;
|
|
|
|
/// StaticCtorsSection - This is the directive that is emitted to switch to
|
|
/// a section to emit the static constructor list.
|
|
/// Defaults to "\t.section .ctors,\"aw\",@progbits".
|
|
const char *StaticCtorsSection;
|
|
|
|
/// StaticDtorsSection - This is the directive that is emitted to switch to
|
|
/// a section to emit the static destructor list.
|
|
/// Defaults to "\t.section .dtors,\"aw\",@progbits".
|
|
const char *StaticDtorsSection;
|
|
|
|
//===--- Global Variable Emission Directives --------------------------===//
|
|
|
|
/// GlobalDirective - This is the directive used to declare a global entity.
|
|
///
|
|
const char *GlobalDirective; // Defaults to NULL.
|
|
|
|
/// ExternDirective - This is the directive used to declare external
|
|
/// globals.
|
|
///
|
|
const char *ExternDirective; // Defaults to NULL.
|
|
|
|
/// SetDirective - This is the name of a directive that can be used to tell
|
|
/// the assembler to set the value of a variable to some expression.
|
|
const char *SetDirective; // Defaults to null.
|
|
|
|
/// LCOMMDirective - This is the name of a directive (if supported) that can
|
|
/// be used to efficiently declare a local (internal) block of zero
|
|
/// initialized data in the .bss/.data section. The syntax expected is:
|
|
/// @verbatim <LCOMMDirective> SYMBOLNAME LENGTHINBYTES, ALIGNMENT
|
|
/// @endverbatim
|
|
const char *LCOMMDirective; // Defaults to null.
|
|
|
|
const char *COMMDirective; // Defaults to "\t.comm\t".
|
|
|
|
/// COMMDirectiveTakesAlignment - True if COMMDirective take a third
|
|
/// argument that specifies the alignment of the declaration.
|
|
bool COMMDirectiveTakesAlignment; // Defaults to true.
|
|
|
|
/// HasDotTypeDotSizeDirective - True if the target has .type and .size
|
|
/// directives, this is true for most ELF targets.
|
|
bool HasDotTypeDotSizeDirective; // Defaults to true.
|
|
|
|
/// HasSingleParameterDotFile - True if the target has a single parameter
|
|
/// .file directive, this is true for ELF targets.
|
|
bool HasSingleParameterDotFile; // Defaults to true.
|
|
|
|
/// UsedDirective - This directive, if non-null, is used to declare a global
|
|
/// as being used somehow that the assembler can't see. This prevents dead
|
|
/// code elimination on some targets.
|
|
const char *UsedDirective; // Defaults to null.
|
|
|
|
/// WeakRefDirective - This directive, if non-null, is used to declare a
|
|
/// global as being a weak undefined symbol.
|
|
const char *WeakRefDirective; // Defaults to null.
|
|
|
|
/// WeakDefDirective - This directive, if non-null, is used to declare a
|
|
/// global as being a weak defined symbol.
|
|
const char *WeakDefDirective; // Defaults to null.
|
|
|
|
/// HiddenDirective - This directive, if non-null, is used to declare a
|
|
/// global or function as having hidden visibility.
|
|
const char *HiddenDirective; // Defaults to "\t.hidden\t".
|
|
|
|
/// ProtectedDirective - This directive, if non-null, is used to declare a
|
|
/// global or function as having protected visibility.
|
|
const char *ProtectedDirective; // Defaults to "\t.protected\t".
|
|
|
|
//===--- Dwarf Emission Directives -----------------------------------===//
|
|
|
|
/// AbsoluteDebugSectionOffsets - True if we should emit abolute section
|
|
/// offsets for debug information. Defaults to false.
|
|
bool AbsoluteDebugSectionOffsets;
|
|
|
|
/// AbsoluteEHSectionOffsets - True if we should emit abolute section
|
|
/// offsets for EH information. Defaults to false.
|
|
bool AbsoluteEHSectionOffsets;
|
|
|
|
/// HasLEB128 - True if target asm supports leb128 directives.
|
|
///
|
|
bool HasLEB128; // Defaults to false.
|
|
|
|
/// hasDotLocAndDotFile - True if target asm supports .loc and .file
|
|
/// directives for emitting debugging information.
|
|
///
|
|
bool HasDotLocAndDotFile; // Defaults to false.
|
|
|
|
/// SupportsDebugInformation - True if target supports emission of debugging
|
|
/// information.
|
|
bool SupportsDebugInformation;
|
|
|
|
/// SupportsExceptionHandling - True if target supports
|
|
/// exception handling.
|
|
///
|
|
bool SupportsExceptionHandling; // Defaults to false.
|
|
|
|
/// RequiresFrameSection - true if the Dwarf2 output needs a frame section
|
|
///
|
|
bool DwarfRequiresFrameSection; // Defaults to true.
|
|
|
|
/// DwarfUsesInlineInfoSection - True if DwarfDebugInlineSection is used to
|
|
/// encode inline subroutine information.
|
|
bool DwarfUsesInlineInfoSection; // Defaults to false.
|
|
|
|
/// NonLocalEHFrameLabel - If set, the EH_frame label needs to be non-local.
|
|
///
|
|
bool NonLocalEHFrameLabel; // Defaults to false.
|
|
|
|
/// GlobalEHDirective - This is the directive used to make exception frame
|
|
/// tables globally visible.
|
|
///
|
|
const char *GlobalEHDirective; // Defaults to NULL.
|
|
|
|
/// SupportsWeakEmptyEHFrame - True if target assembler and linker will
|
|
/// handle a weak_definition of constant 0 for an omitted EH frame.
|
|
bool SupportsWeakOmittedEHFrame; // Defaults to true.
|
|
|
|
/// DwarfSectionOffsetDirective - Special section offset directive.
|
|
const char* DwarfSectionOffsetDirective; // Defaults to NULL
|
|
|
|
/// DwarfAbbrevSection - Section directive for Dwarf abbrev.
|
|
///
|
|
const char *DwarfAbbrevSection; // Defaults to ".debug_abbrev".
|
|
|
|
/// DwarfInfoSection - Section directive for Dwarf info.
|
|
///
|
|
const char *DwarfInfoSection; // Defaults to ".debug_info".
|
|
|
|
/// DwarfLineSection - Section directive for Dwarf info.
|
|
///
|
|
const char *DwarfLineSection; // Defaults to ".debug_line".
|
|
|
|
/// DwarfFrameSection - Section directive for Dwarf info.
|
|
///
|
|
const char *DwarfFrameSection; // Defaults to ".debug_frame".
|
|
|
|
/// DwarfPubNamesSection - Section directive for Dwarf info.
|
|
///
|
|
const char *DwarfPubNamesSection; // Defaults to ".debug_pubnames".
|
|
|
|
/// DwarfPubTypesSection - Section directive for Dwarf info.
|
|
///
|
|
const char *DwarfPubTypesSection; // Defaults to ".debug_pubtypes".
|
|
|
|
/// DwarfDebugInlineSection - Section directive for inline info.
|
|
///
|
|
const char *DwarfDebugInlineSection; // Defaults to ".debug_inlined"
|
|
|
|
/// DwarfStrSection - Section directive for Dwarf info.
|
|
///
|
|
const char *DwarfStrSection; // Defaults to ".debug_str".
|
|
|
|
/// DwarfLocSection - Section directive for Dwarf info.
|
|
///
|
|
const char *DwarfLocSection; // Defaults to ".debug_loc".
|
|
|
|
/// DwarfARangesSection - Section directive for Dwarf info.
|
|
///
|
|
const char *DwarfARangesSection; // Defaults to ".debug_aranges".
|
|
|
|
/// DwarfRangesSection - Section directive for Dwarf info.
|
|
///
|
|
const char *DwarfRangesSection; // Defaults to ".debug_ranges".
|
|
|
|
/// DwarfMacroInfoSection - Section directive for DWARF macro info.
|
|
///
|
|
const char *DwarfMacroInfoSection; // Defaults to ".debug_macinfo".
|
|
|
|
/// DwarfEHFrameSection - Section directive for Exception frames.
|
|
///
|
|
const char *DwarfEHFrameSection; // Defaults to ".eh_frame".
|
|
|
|
/// DwarfExceptionSection - Section directive for Exception table.
|
|
///
|
|
const char *DwarfExceptionSection; // Defaults to ".gcc_except_table".
|
|
|
|
//===--- CBE Asm Translation Table -----------------------------------===//
|
|
|
|
const char *const *AsmTransCBE; // Defaults to empty
|
|
|
|
public:
|
|
explicit TargetAsmInfo(const TargetMachine &TM);
|
|
virtual ~TargetAsmInfo();
|
|
|
|
const Section* getNamedSection(const char *Name,
|
|
unsigned Flags = SectionFlags::None,
|
|
bool Override = false) const;
|
|
const Section* getUnnamedSection(const char *Directive,
|
|
unsigned Flags = SectionFlags::None,
|
|
bool Override = false) const;
|
|
|
|
/// Measure the specified inline asm to determine an approximation of its
|
|
/// length.
|
|
virtual unsigned getInlineAsmLength(const char *Str) const;
|
|
|
|
/// ExpandInlineAsm - This hook allows the target to expand an inline asm
|
|
/// call to be explicit llvm code if it wants to. This is useful for
|
|
/// turning simple inline asms into LLVM intrinsics, which gives the
|
|
/// compiler more information about the behavior of the code.
|
|
virtual bool ExpandInlineAsm(CallInst *CI) const {
|
|
return false;
|
|
}
|
|
|
|
/// emitUsedDirectiveFor - This hook allows targets to selectively decide
|
|
/// not to emit the UsedDirective for some symbols in llvm.used.
|
|
virtual bool emitUsedDirectiveFor(const GlobalValue *GV,
|
|
Mangler *Mang) const {
|
|
return (GV!=0);
|
|
}
|
|
|
|
/// PreferredEHDataFormat - This hook allows the target to select data
|
|
/// format used for encoding pointers in exception handling data. Reason is
|
|
/// 0 for data, 1 for code labels, 2 for function pointers. Global is true
|
|
/// if the symbol can be relocated.
|
|
virtual unsigned PreferredEHDataFormat(DwarfEncoding::Target Reason,
|
|
bool Global) const;
|
|
|
|
/// SectionKindForGlobal - This hook allows the target to select proper
|
|
/// section kind used for global emission.
|
|
virtual SectionKind::Kind
|
|
SectionKindForGlobal(const GlobalValue *GV) const;
|
|
|
|
/// RelocBehaviour - Describes how relocations should be treated when
|
|
/// selecting sections. Reloc::Global bit should be set if global
|
|
/// relocations should force object to be placed in read-write
|
|
/// sections. Reloc::Local bit should be set if local relocations should
|
|
/// force object to be placed in read-write sections.
|
|
virtual unsigned RelocBehaviour() const;
|
|
|
|
/// SectionFlagsForGlobal - This hook allows the target to select proper
|
|
/// section flags either for given global or for section.
|
|
virtual unsigned
|
|
SectionFlagsForGlobal(const GlobalValue *GV = NULL,
|
|
const char* name = NULL) const;
|
|
|
|
/// SectionForGlobal - This hooks returns proper section name for given
|
|
/// global with all necessary flags and marks.
|
|
virtual const Section* SectionForGlobal(const GlobalValue *GV) const;
|
|
|
|
// Helper methods for SectionForGlobal
|
|
virtual std::string UniqueSectionForGlobal(const GlobalValue* GV,
|
|
SectionKind::Kind kind) const;
|
|
|
|
const std::string& getSectionFlags(unsigned Flags) const;
|
|
virtual std::string printSectionFlags(unsigned flags) const { return ""; }
|
|
|
|
virtual const Section* SelectSectionForGlobal(const GlobalValue *GV) const;
|
|
|
|
virtual const Section* SelectSectionForMachineConst(const Type *Ty) const;
|
|
|
|
/// getSLEB128Size - Compute the number of bytes required for a signed
|
|
/// leb128 value.
|
|
|
|
static unsigned getSLEB128Size(int Value);
|
|
|
|
/// getULEB128Size - Compute the number of bytes required for an unsigned
|
|
/// leb128 value.
|
|
|
|
static unsigned getULEB128Size(unsigned Value);
|
|
|
|
// Data directive accessors
|
|
//
|
|
const char *getData8bitsDirective(unsigned AS = 0) const {
|
|
return AS == 0 ? Data8bitsDirective : getASDirective(8, AS);
|
|
}
|
|
const char *getData16bitsDirective(unsigned AS = 0) const {
|
|
return AS == 0 ? Data16bitsDirective : getASDirective(16, AS);
|
|
}
|
|
const char *getData32bitsDirective(unsigned AS = 0) const {
|
|
return AS == 0 ? Data32bitsDirective : getASDirective(32, AS);
|
|
}
|
|
const char *getData64bitsDirective(unsigned AS = 0) const {
|
|
return AS == 0 ? Data64bitsDirective : getASDirective(64, AS);
|
|
}
|
|
|
|
|
|
// Accessors.
|
|
//
|
|
const Section *getTextSection() const {
|
|
return TextSection;
|
|
}
|
|
const Section *getDataSection() const {
|
|
return DataSection;
|
|
}
|
|
const char *getBSSSection() const {
|
|
return BSSSection;
|
|
}
|
|
const Section *getBSSSection_() const {
|
|
return BSSSection_;
|
|
}
|
|
const Section *getReadOnlySection() const {
|
|
return ReadOnlySection;
|
|
}
|
|
const Section *getSmallDataSection() const {
|
|
return SmallDataSection;
|
|
}
|
|
const Section *getSmallBSSSection() const {
|
|
return SmallBSSSection;
|
|
}
|
|
const Section *getSmallRODataSection() const {
|
|
return SmallRODataSection;
|
|
}
|
|
const Section *getTLSDataSection() const {
|
|
return TLSDataSection;
|
|
}
|
|
const Section *getTLSBSSSection() const {
|
|
return TLSBSSSection;
|
|
}
|
|
const char *getZeroFillDirective() const {
|
|
return ZeroFillDirective;
|
|
}
|
|
const char *getNonexecutableStackDirective() const {
|
|
return NonexecutableStackDirective;
|
|
}
|
|
bool needsSet() const {
|
|
return NeedsSet;
|
|
}
|
|
const char *getPCSymbol() const {
|
|
return PCSymbol;
|
|
}
|
|
char getSeparatorChar() const {
|
|
return SeparatorChar;
|
|
}
|
|
unsigned getCommentColumn() const {
|
|
return CommentColumn;
|
|
}
|
|
const char *getCommentString() const {
|
|
return CommentString;
|
|
}
|
|
const char *getGlobalPrefix() const {
|
|
return GlobalPrefix;
|
|
}
|
|
const char *getPrivateGlobalPrefix() const {
|
|
return PrivateGlobalPrefix;
|
|
}
|
|
/// EHGlobalPrefix - Prefix for EH_frame and the .eh symbols.
|
|
/// This is normally PrivateGlobalPrefix, but some targets want
|
|
/// these symbols to be visible.
|
|
virtual const char *getEHGlobalPrefix() const {
|
|
return PrivateGlobalPrefix;
|
|
}
|
|
const char *getLessPrivateGlobalPrefix() const {
|
|
return LessPrivateGlobalPrefix;
|
|
}
|
|
const char *getJumpTableSpecialLabelPrefix() const {
|
|
return JumpTableSpecialLabelPrefix;
|
|
}
|
|
const char *getGlobalVarAddrPrefix() const {
|
|
return GlobalVarAddrPrefix;
|
|
}
|
|
const char *getGlobalVarAddrSuffix() const {
|
|
return GlobalVarAddrSuffix;
|
|
}
|
|
const char *getFunctionAddrPrefix() const {
|
|
return FunctionAddrPrefix;
|
|
}
|
|
const char *getFunctionAddrSuffix() const {
|
|
return FunctionAddrSuffix;
|
|
}
|
|
const char *getPersonalityPrefix() const {
|
|
return PersonalityPrefix;
|
|
}
|
|
const char *getPersonalitySuffix() const {
|
|
return PersonalitySuffix;
|
|
}
|
|
bool getNeedsIndirectEncoding() const {
|
|
return NeedsIndirectEncoding;
|
|
}
|
|
const char *getInlineAsmStart() const {
|
|
return InlineAsmStart;
|
|
}
|
|
const char *getInlineAsmEnd() const {
|
|
return InlineAsmEnd;
|
|
}
|
|
unsigned getAssemblerDialect() const {
|
|
return AssemblerDialect;
|
|
}
|
|
const char *getStringConstantPrefix() const {
|
|
return StringConstantPrefix;
|
|
}
|
|
bool doesAllowQuotesInName() const {
|
|
return AllowQuotesInName;
|
|
}
|
|
const char *getZeroDirective() const {
|
|
return ZeroDirective;
|
|
}
|
|
const char *getZeroDirectiveSuffix() const {
|
|
return ZeroDirectiveSuffix;
|
|
}
|
|
const char *getAsciiDirective() const {
|
|
return AsciiDirective;
|
|
}
|
|
const char *getAscizDirective() const {
|
|
return AscizDirective;
|
|
}
|
|
const char *getJumpTableDirective() const {
|
|
return JumpTableDirective;
|
|
}
|
|
const char *getAlignDirective() const {
|
|
return AlignDirective;
|
|
}
|
|
bool getAlignmentIsInBytes() const {
|
|
return AlignmentIsInBytes;
|
|
}
|
|
unsigned getTextAlignFillValue() const {
|
|
return TextAlignFillValue;
|
|
}
|
|
const char *getSwitchToSectionDirective() const {
|
|
return SwitchToSectionDirective;
|
|
}
|
|
const char *getTextSectionStartSuffix() const {
|
|
return TextSectionStartSuffix;
|
|
}
|
|
const char *getDataSectionStartSuffix() const {
|
|
return DataSectionStartSuffix;
|
|
}
|
|
const char *getSectionEndDirectiveSuffix() const {
|
|
return SectionEndDirectiveSuffix;
|
|
}
|
|
const char *getConstantPoolSection() const {
|
|
return ConstantPoolSection;
|
|
}
|
|
const char *getJumpTableDataSection() const {
|
|
return JumpTableDataSection;
|
|
}
|
|
const char *getCStringSection() const {
|
|
return CStringSection;
|
|
}
|
|
const Section *getCStringSection_() const {
|
|
return CStringSection_;
|
|
}
|
|
const char *getStaticCtorsSection() const {
|
|
return StaticCtorsSection;
|
|
}
|
|
const char *getStaticDtorsSection() const {
|
|
return StaticDtorsSection;
|
|
}
|
|
const char *getGlobalDirective() const {
|
|
return GlobalDirective;
|
|
}
|
|
const char *getExternDirective() const {
|
|
return ExternDirective;
|
|
}
|
|
const char *getSetDirective() const {
|
|
return SetDirective;
|
|
}
|
|
const char *getLCOMMDirective() const {
|
|
return LCOMMDirective;
|
|
}
|
|
const char *getCOMMDirective() const {
|
|
return COMMDirective;
|
|
}
|
|
bool getCOMMDirectiveTakesAlignment() const {
|
|
return COMMDirectiveTakesAlignment;
|
|
}
|
|
bool hasDotTypeDotSizeDirective() const {
|
|
return HasDotTypeDotSizeDirective;
|
|
}
|
|
bool hasSingleParameterDotFile() const {
|
|
return HasSingleParameterDotFile;
|
|
}
|
|
const char *getUsedDirective() const {
|
|
return UsedDirective;
|
|
}
|
|
const char *getWeakRefDirective() const {
|
|
return WeakRefDirective;
|
|
}
|
|
const char *getWeakDefDirective() const {
|
|
return WeakDefDirective;
|
|
}
|
|
const char *getHiddenDirective() const {
|
|
return HiddenDirective;
|
|
}
|
|
const char *getProtectedDirective() const {
|
|
return ProtectedDirective;
|
|
}
|
|
bool isAbsoluteDebugSectionOffsets() const {
|
|
return AbsoluteDebugSectionOffsets;
|
|
}
|
|
bool isAbsoluteEHSectionOffsets() const {
|
|
return AbsoluteEHSectionOffsets;
|
|
}
|
|
bool hasLEB128() const {
|
|
return HasLEB128;
|
|
}
|
|
bool hasDotLocAndDotFile() const {
|
|
return HasDotLocAndDotFile;
|
|
}
|
|
bool doesSupportDebugInformation() const {
|
|
return SupportsDebugInformation;
|
|
}
|
|
bool doesSupportExceptionHandling() const {
|
|
return SupportsExceptionHandling;
|
|
}
|
|
bool doesDwarfRequireFrameSection() const {
|
|
return DwarfRequiresFrameSection;
|
|
}
|
|
bool doesDwarfUsesInlineInfoSection() const {
|
|
return DwarfUsesInlineInfoSection;
|
|
}
|
|
bool doesRequireNonLocalEHFrameLabel() const {
|
|
return NonLocalEHFrameLabel;
|
|
}
|
|
const char *getGlobalEHDirective() const {
|
|
return GlobalEHDirective;
|
|
}
|
|
bool getSupportsWeakOmittedEHFrame() const {
|
|
return SupportsWeakOmittedEHFrame;
|
|
}
|
|
const char *getDwarfSectionOffsetDirective() const {
|
|
return DwarfSectionOffsetDirective;
|
|
}
|
|
const char *getDwarfAbbrevSection() const {
|
|
return DwarfAbbrevSection;
|
|
}
|
|
const char *getDwarfInfoSection() const {
|
|
return DwarfInfoSection;
|
|
}
|
|
const char *getDwarfLineSection() const {
|
|
return DwarfLineSection;
|
|
}
|
|
const char *getDwarfFrameSection() const {
|
|
return DwarfFrameSection;
|
|
}
|
|
const char *getDwarfPubNamesSection() const {
|
|
return DwarfPubNamesSection;
|
|
}
|
|
const char *getDwarfPubTypesSection() const {
|
|
return DwarfPubTypesSection;
|
|
}
|
|
const char *getDwarfDebugInlineSection() const {
|
|
return DwarfDebugInlineSection;
|
|
}
|
|
const char *getDwarfStrSection() const {
|
|
return DwarfStrSection;
|
|
}
|
|
const char *getDwarfLocSection() const {
|
|
return DwarfLocSection;
|
|
}
|
|
const char *getDwarfARangesSection() const {
|
|
return DwarfARangesSection;
|
|
}
|
|
const char *getDwarfRangesSection() const {
|
|
return DwarfRangesSection;
|
|
}
|
|
const char *getDwarfMacroInfoSection() const {
|
|
return DwarfMacroInfoSection;
|
|
}
|
|
const char *getDwarfEHFrameSection() const {
|
|
return DwarfEHFrameSection;
|
|
}
|
|
const char *getDwarfExceptionSection() const {
|
|
return DwarfExceptionSection;
|
|
}
|
|
const char *const *getAsmCBE() const {
|
|
return AsmTransCBE;
|
|
}
|
|
};
|
|
}
|
|
|
|
#endif
|