1 files changed, 300 insertions, 0 deletions
diff --git a/bindings/go/llvm/target.go b/bindings/go/llvm/target.go
new file mode 100644
index 0000000..bd1d0f3
--- /dev/null
+++ b/bindings/go/llvm/target.go
@@ -0,0 +1,300 @@
+//===- 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
+}