mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-17 03:30:28 +00:00
301 lines
9.6 KiB
Go
301 lines
9.6 KiB
Go
|
//===- target.go - Bindings for target ------------------------------------===//
|
||
|
//
|
||
|
// The LLVM Compiler Infrastructure
|
||
|
//
|
||
|
// This file is distributed under the University of Illinois Open Source
|
||
|
// License. See LICENSE.TXT for details.
|
||
|
//
|
||
|
//===----------------------------------------------------------------------===//
|
||
|
//
|
||
|
// This file defines bindings for the target component.
|
||
|
//
|
||
|
//===----------------------------------------------------------------------===//
|
||
|
|
||
|
package llvm
|
||
|
|
||
|
/*
|
||
|
#include "llvm-c/Target.h"
|
||
|
#include "llvm-c/TargetMachine.h"
|
||
|
#include <stdlib.h>
|
||
|
*/
|
||
|
import "C"
|
||
|
import "unsafe"
|
||
|
import "errors"
|
||
|
|
||
|
type (
|
||
|
TargetData struct {
|
||
|
C C.LLVMTargetDataRef
|
||
|
}
|
||
|
Target struct {
|
||
|
C C.LLVMTargetRef
|
||
|
}
|
||
|
TargetMachine struct {
|
||
|
C C.LLVMTargetMachineRef
|
||
|
}
|
||
|
ByteOrdering C.enum_LLVMByteOrdering
|
||
|
RelocMode C.LLVMRelocMode
|
||
|
CodeGenOptLevel C.LLVMCodeGenOptLevel
|
||
|
CodeGenFileType C.LLVMCodeGenFileType
|
||
|
CodeModel C.LLVMCodeModel
|
||
|
)
|
||
|
|
||
|
const (
|
||
|
BigEndian ByteOrdering = C.LLVMBigEndian
|
||
|
LittleEndian ByteOrdering = C.LLVMLittleEndian
|
||
|
)
|
||
|
|
||
|
const (
|
||
|
RelocDefault RelocMode = C.LLVMRelocDefault
|
||
|
RelocStatic RelocMode = C.LLVMRelocStatic
|
||
|
RelocPIC RelocMode = C.LLVMRelocPIC
|
||
|
RelocDynamicNoPic RelocMode = C.LLVMRelocDynamicNoPic
|
||
|
)
|
||
|
|
||
|
const (
|
||
|
CodeGenLevelNone CodeGenOptLevel = C.LLVMCodeGenLevelNone
|
||
|
CodeGenLevelLess CodeGenOptLevel = C.LLVMCodeGenLevelLess
|
||
|
CodeGenLevelDefault CodeGenOptLevel = C.LLVMCodeGenLevelDefault
|
||
|
CodeGenLevelAggressive CodeGenOptLevel = C.LLVMCodeGenLevelAggressive
|
||
|
)
|
||
|
|
||
|
const (
|
||
|
CodeModelDefault CodeModel = C.LLVMCodeModelDefault
|
||
|
CodeModelJITDefault CodeModel = C.LLVMCodeModelJITDefault
|
||
|
CodeModelSmall CodeModel = C.LLVMCodeModelSmall
|
||
|
CodeModelKernel CodeModel = C.LLVMCodeModelKernel
|
||
|
CodeModelMedium CodeModel = C.LLVMCodeModelMedium
|
||
|
CodeModelLarge CodeModel = C.LLVMCodeModelLarge
|
||
|
)
|
||
|
|
||
|
const (
|
||
|
AssemblyFile CodeGenFileType = C.LLVMAssemblyFile
|
||
|
ObjectFile CodeGenFileType = C.LLVMObjectFile
|
||
|
)
|
||
|
|
||
|
// InitializeAllTargetInfos - The main program should call this function if it
|
||
|
// wants access to all available targets that LLVM is configured to support.
|
||
|
func InitializeAllTargetInfos() { C.LLVMInitializeAllTargetInfos() }
|
||
|
|
||
|
// InitializeAllTargets - The main program should call this function if it wants
|
||
|
// to link in all available targets that LLVM is configured to support.
|
||
|
func InitializeAllTargets() { C.LLVMInitializeAllTargets() }
|
||
|
|
||
|
func InitializeAllTargetMCs() { C.LLVMInitializeAllTargetMCs() }
|
||
|
|
||
|
func InitializeAllAsmParsers() { C.LLVMInitializeAllAsmParsers() }
|
||
|
|
||
|
func InitializeAllAsmPrinters() { C.LLVMInitializeAllAsmPrinters() }
|
||
|
|
||
|
var initializeNativeTargetError = errors.New("Failed to initialize native target")
|
||
|
|
||
|
// InitializeNativeTarget - The main program should call this function to
|
||
|
// initialize the native target corresponding to the host. This is useful
|
||
|
// for JIT applications to ensure that the target gets linked in correctly.
|
||
|
func InitializeNativeTarget() error {
|
||
|
fail := C.LLVMInitializeNativeTarget()
|
||
|
if fail != 0 {
|
||
|
return initializeNativeTargetError
|
||
|
}
|
||
|
return nil
|
||
|
}
|
||
|
|
||
|
func InitializeNativeAsmPrinter() error {
|
||
|
fail := C.LLVMInitializeNativeAsmPrinter()
|
||
|
if fail != 0 {
|
||
|
return initializeNativeTargetError
|
||
|
}
|
||
|
return nil
|
||
|
}
|
||
|
|
||
|
//-------------------------------------------------------------------------
|
||
|
// llvm.TargetData
|
||
|
//-------------------------------------------------------------------------
|
||
|
|
||
|
// Creates target data from a target layout string.
|
||
|
// See the constructor llvm::TargetData::TargetData.
|
||
|
func NewTargetData(rep string) (td TargetData) {
|
||
|
crep := C.CString(rep)
|
||
|
defer C.free(unsafe.Pointer(crep))
|
||
|
td.C = C.LLVMCreateTargetData(crep)
|
||
|
return
|
||
|
}
|
||
|
|
||
|
// Adds target data information to a pass manager. This does not take ownership
|
||
|
// of the target data.
|
||
|
// See the method llvm::PassManagerBase::add.
|
||
|
func (pm PassManager) Add(td TargetData) {
|
||
|
C.LLVMAddTargetData(td.C, pm.C)
|
||
|
}
|
||
|
|
||
|
// Converts target data to a target layout string. The string must be disposed
|
||
|
// with LLVMDisposeMessage.
|
||
|
// See the constructor llvm::TargetData::TargetData.
|
||
|
func (td TargetData) String() (s string) {
|
||
|
cmsg := C.LLVMCopyStringRepOfTargetData(td.C)
|
||
|
s = C.GoString(cmsg)
|
||
|
C.LLVMDisposeMessage(cmsg)
|
||
|
return
|
||
|
}
|
||
|
|
||
|
// Returns the byte order of a target, either BigEndian or LittleEndian.
|
||
|
// See the method llvm::TargetData::isLittleEndian.
|
||
|
func (td TargetData) ByteOrder() ByteOrdering { return ByteOrdering(C.LLVMByteOrder(td.C)) }
|
||
|
|
||
|
// Returns the pointer size in bytes for a target.
|
||
|
// See the method llvm::TargetData::getPointerSize.
|
||
|
func (td TargetData) PointerSize() int { return int(C.LLVMPointerSize(td.C)) }
|
||
|
|
||
|
// Returns the integer type that is the same size as a pointer on a target.
|
||
|
// See the method llvm::TargetData::getIntPtrType.
|
||
|
func (td TargetData) IntPtrType() (t Type) { t.C = C.LLVMIntPtrType(td.C); return }
|
||
|
|
||
|
// Computes the size of a type in bytes for a target.
|
||
|
// See the method llvm::TargetData::getTypeSizeInBits.
|
||
|
func (td TargetData) TypeSizeInBits(t Type) uint64 {
|
||
|
return uint64(C.LLVMSizeOfTypeInBits(td.C, t.C))
|
||
|
}
|
||
|
|
||
|
// Computes the storage size of a type in bytes for a target.
|
||
|
// See the method llvm::TargetData::getTypeStoreSize.
|
||
|
func (td TargetData) TypeStoreSize(t Type) uint64 {
|
||
|
return uint64(C.LLVMStoreSizeOfType(td.C, t.C))
|
||
|
}
|
||
|
|
||
|
// Computes the ABI size of a type in bytes for a target.
|
||
|
// See the method llvm::TargetData::getTypeAllocSize.
|
||
|
func (td TargetData) TypeAllocSize(t Type) uint64 {
|
||
|
return uint64(C.LLVMABISizeOfType(td.C, t.C))
|
||
|
}
|
||
|
|
||
|
// Computes the ABI alignment of a type in bytes for a target.
|
||
|
// See the method llvm::TargetData::getABITypeAlignment.
|
||
|
func (td TargetData) ABITypeAlignment(t Type) int {
|
||
|
return int(C.LLVMABIAlignmentOfType(td.C, t.C))
|
||
|
}
|
||
|
|
||
|
// Computes the call frame alignment of a type in bytes for a target.
|
||
|
// See the method llvm::TargetData::getCallFrameTypeAlignment.
|
||
|
func (td TargetData) CallFrameTypeAlignment(t Type) int {
|
||
|
return int(C.LLVMCallFrameAlignmentOfType(td.C, t.C))
|
||
|
}
|
||
|
|
||
|
// Computes the preferred alignment of a type in bytes for a target.
|
||
|
// See the method llvm::TargetData::getPrefTypeAlignment.
|
||
|
func (td TargetData) PrefTypeAlignment(t Type) int {
|
||
|
return int(C.LLVMPreferredAlignmentOfType(td.C, t.C))
|
||
|
}
|
||
|
|
||
|
// Computes the preferred alignment of a global variable in bytes for a target.
|
||
|
// See the method llvm::TargetData::getPreferredAlignment.
|
||
|
func (td TargetData) PreferredAlignment(g Value) int {
|
||
|
return int(C.LLVMPreferredAlignmentOfGlobal(td.C, g.C))
|
||
|
}
|
||
|
|
||
|
// Computes the structure element that contains the byte offset for a target.
|
||
|
// See the method llvm::StructLayout::getElementContainingOffset.
|
||
|
func (td TargetData) ElementContainingOffset(t Type, offset uint64) int {
|
||
|
return int(C.LLVMElementAtOffset(td.C, t.C, C.ulonglong(offset)))
|
||
|
}
|
||
|
|
||
|
// Computes the byte offset of the indexed struct element for a target.
|
||
|
// See the method llvm::StructLayout::getElementOffset.
|
||
|
func (td TargetData) ElementOffset(t Type, element int) uint64 {
|
||
|
return uint64(C.LLVMOffsetOfElement(td.C, t.C, C.unsigned(element)))
|
||
|
}
|
||
|
|
||
|
// Deallocates a TargetData.
|
||
|
// See the destructor llvm::TargetData::~TargetData.
|
||
|
func (td TargetData) Dispose() { C.LLVMDisposeTargetData(td.C) }
|
||
|
|
||
|
//-------------------------------------------------------------------------
|
||
|
// llvm.Target
|
||
|
//-------------------------------------------------------------------------
|
||
|
|
||
|
func FirstTarget() Target {
|
||
|
return Target{C.LLVMGetFirstTarget()}
|
||
|
}
|
||
|
|
||
|
func (t Target) NextTarget() Target {
|
||
|
return Target{C.LLVMGetNextTarget(t.C)}
|
||
|
}
|
||
|
|
||
|
func GetTargetFromTriple(triple string) (t Target, err error) {
|
||
|
var errstr *C.char
|
||
|
ctriple := C.CString(triple)
|
||
|
defer C.free(unsafe.Pointer(ctriple))
|
||
|
fail := C.LLVMGetTargetFromTriple(ctriple, &t.C, &errstr)
|
||
|
if fail != 0 {
|
||
|
err = errors.New(C.GoString(errstr))
|
||
|
C.free(unsafe.Pointer(errstr))
|
||
|
}
|
||
|
return
|
||
|
}
|
||
|
|
||
|
func (t Target) Name() string {
|
||
|
return C.GoString(C.LLVMGetTargetName(t.C))
|
||
|
}
|
||
|
|
||
|
func (t Target) Description() string {
|
||
|
return C.GoString(C.LLVMGetTargetDescription(t.C))
|
||
|
}
|
||
|
|
||
|
//-------------------------------------------------------------------------
|
||
|
// llvm.TargetMachine
|
||
|
//-------------------------------------------------------------------------
|
||
|
|
||
|
// CreateTargetMachine creates a new TargetMachine.
|
||
|
func (t Target) CreateTargetMachine(Triple string, CPU string, Features string,
|
||
|
Level CodeGenOptLevel, Reloc RelocMode,
|
||
|
CodeModel CodeModel) (tm TargetMachine) {
|
||
|
cTriple := C.CString(Triple)
|
||
|
defer C.free(unsafe.Pointer(cTriple))
|
||
|
cCPU := C.CString(CPU)
|
||
|
defer C.free(unsafe.Pointer(cCPU))
|
||
|
cFeatures := C.CString(Features)
|
||
|
defer C.free(unsafe.Pointer(cFeatures))
|
||
|
tm.C = C.LLVMCreateTargetMachine(t.C, cTriple, cCPU, cFeatures,
|
||
|
C.LLVMCodeGenOptLevel(Level),
|
||
|
C.LLVMRelocMode(Reloc),
|
||
|
C.LLVMCodeModel(CodeModel))
|
||
|
return
|
||
|
}
|
||
|
|
||
|
// Triple returns the triple describing the machine (arch-vendor-os).
|
||
|
func (tm TargetMachine) Triple() string {
|
||
|
cstr := C.LLVMGetTargetMachineTriple(tm.C)
|
||
|
return C.GoString(cstr)
|
||
|
}
|
||
|
|
||
|
// TargetData returns the TargetData for the machine.
|
||
|
func (tm TargetMachine) TargetData() TargetData {
|
||
|
return TargetData{C.LLVMGetTargetMachineData(tm.C)}
|
||
|
}
|
||
|
|
||
|
func (tm TargetMachine) EmitToMemoryBuffer(m Module, ft CodeGenFileType) (MemoryBuffer, error) {
|
||
|
var errstr *C.char
|
||
|
var mb MemoryBuffer
|
||
|
fail := C.LLVMTargetMachineEmitToMemoryBuffer(tm.C, m.C, C.LLVMCodeGenFileType(ft), &errstr, &mb.C)
|
||
|
if fail != 0 {
|
||
|
err := errors.New(C.GoString(errstr))
|
||
|
C.free(unsafe.Pointer(errstr))
|
||
|
return MemoryBuffer{}, err
|
||
|
}
|
||
|
return mb, nil
|
||
|
}
|
||
|
|
||
|
func (tm TargetMachine) AddAnalysisPasses(pm PassManager) {
|
||
|
C.LLVMAddAnalysisPasses(tm.C, pm.C)
|
||
|
}
|
||
|
|
||
|
// Dispose releases resources related to the TargetMachine.
|
||
|
func (tm TargetMachine) Dispose() {
|
||
|
C.LLVMDisposeTargetMachine(tm.C)
|
||
|
}
|
||
|
|
||
|
func DefaultTargetTriple() (triple string) {
|
||
|
cTriple := C.LLVMGetDefaultTargetTriple()
|
||
|
defer C.free(unsafe.Pointer(cTriple))
|
||
|
triple = C.GoString(cTriple)
|
||
|
return
|
||
|
}
|