[dev.cc] runtime: convert header files to Go

The conversion was done with an automated tool and then
modified only as necessary to make it compile and run.

[This CL is part of the removal of C code from package runtime.
See golang.org/s/dev.cc for an overview.]

LGTM=r
R=r, austin
CC=dvyukov, golang-codereviews, iant, khr
https://golang.org/cl/167550043

src/runtime/chan.h

-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-#define	MAXALIGN	8
-
-typedef	struct	WaitQ	WaitQ;
-typedef	struct	Select	Select;
-typedef	struct	Scase	Scase;
-
-struct	WaitQ
-{
-	SudoG*	first;
-	SudoG*	last;
-};
-
-struct	Hchan
-{
-	uintgo	qcount;			// total data in the q
-	uintgo	dataqsiz;		// size of the circular q
-	byte*	buf;
-	uint16	elemsize;
-	uint32	closed;
-	Type*	elemtype;		// element type
-	uintgo	sendx;			// send index
-	uintgo	recvx;			// receive index
-	WaitQ	recvq;			// list of recv waiters
-	WaitQ	sendq;			// list of send waiters
-	Mutex	lock;
-};
-
-// Buffer follows Hchan immediately in memory.
-// chanbuf(c, i) is pointer to the i'th slot in the buffer.
-#define chanbuf(c, i) ((byte*)((c)->buf)+(uintptr)(c)->elemsize*(i))
-
-enum
-{
-	debug = 0,
-
-	// Scase.kind
-	CaseRecv,
-	CaseSend,
-	CaseDefault,
-};
-
-// Known to compiler.
-// Changes here must also be made in src/cmd/gc/select.c's selecttype.
-struct	Scase
-{
-	void*	elem;			// data element
-	Hchan*	chan;			// chan
-	uintptr	pc;			// return pc
-	uint16	kind;
-	uint16	so;			// vararg of selected bool
-	bool*	receivedp;		// pointer to received bool (recv2)
-	int64	releasetime;
-};
-
-// Known to compiler.
-// Changes here must also be made in src/cmd/gc/select.c's selecttype.
-struct	Select
-{
-	uint16	tcase;			// total count of scase[]
-	uint16	ncase;			// currently filled scase[]
-	uint16*	pollorder;		// case poll order
-	Hchan**	lockorder;		// channel lock order
-	Scase	scase[1];		// one per case (in order of appearance)
-};

src/runtime/chan1.go

+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime
+
+import "unsafe"
+
+//#define	MAXALIGN	8
+
+type waitq struct {
+	first *sudog
+	last  *sudog
+}
+
+type hchan struct {
+	qcount   uint // total data in the q
+	dataqsiz uint // size of the circular q
+	buf      *byte
+	elemsize uint16
+	closed   uint32
+	elemtype *_type // element type
+	sendx    uint   // send index
+	recvx    uint   // receive index
+	recvq    waitq  // list of recv waiters
+	sendq    waitq  // list of send waiters
+	lock     mutex
+}
+
+// Buffer follows Hchan immediately in memory.
+// chanbuf(c, i) is pointer to the i'th slot in the buffer.
+// #define chanbuf(c, i) ((byte*)((c)->buf)+(uintptr)(c)->elemsize*(i))
+
+const (
+	// scase.kind
+	_CaseRecv = iota
+	_CaseSend
+	_CaseDefault
+)
+
+// Known to compiler.
+// Changes here must also be made in src/cmd/gc/select.c's selecttype.
+type scase struct {
+	elem        unsafe.Pointer // data element
+	_chan       *hchan         // chan
+	pc          uintptr        // return pc
+	kind        uint16
+	so          uint16 // vararg of selected bool
+	receivedp   *bool  // pointer to received bool (recv2)
+	releasetime int64
+}
+
+// Known to compiler.
+// Changes here must also be made in src/cmd/gc/select.c's selecttype.
+type _select struct {
+	tcase     uint16   // total count of scase[]
+	ncase     uint16   // currently filled scase[]
+	pollorder *uint16  // case poll order
+	lockorder **hchan  // channel lock order
+	scase     [1]scase // one per case (in order of appearance)
+}

src/runtime/funcdata.h

@@ -3,9 +3,10 @@
 // license that can be found in the LICENSE file.
 
 // This file defines the IDs for PCDATA and FUNCDATA instructions
-// in Go binaries. It is included by both C and assembly, so it must
-// be written using #defines. It is included by the runtime package
-// as well as the compilers.
+// in Go binaries. It is included by assembly sources, so it must
+// be written using #defines.
+//
+// The Go compiler also #includes this file, for now.
 //
 // symtab.go also contains a copy of these constants.
 
@@ -50,8 +51,7 @@
 
 /*c2go
 enum {
-	PCDATA_ArgSize = 0,
-	PCDATA_StackMapIndex = 1,
+	PCDATA_StackMapIndex = 0,
 	FUNCDATA_ArgsPointerMaps = 0,
 	FUNCDATA_LocalsPointerMaps = 1,
 	FUNCDATA_DeadValueMaps = 2,

src/runtime/type.go

+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Runtime _type representation.
+
+package runtime
+
+import "unsafe"
+
+// Needs to be in sync with ../../cmd/ld/decodesym.c:/^commonsize and pkg/reflect/type.go:/type.
+type _type struct {
+	size       uintptr
+	hash       uint32
+	_unused    uint8
+	align      uint8
+	fieldalign uint8
+	kind       uint8
+	alg        unsafe.Pointer
+	// gc stores _type info required for garbage collector.
+	// If (kind&KindGCProg)==0, then gc[0] points at sparse GC bitmap
+	// (no indirection), 4 bits per word.
+	// If (kind&KindGCProg)!=0, then gc[1] points to a compiler-generated
+	// read-only GC program; and gc[0] points to BSS space for sparse GC bitmap.
+	// For huge _types (>MaxGCMask), runtime unrolls the program directly into
+	// GC bitmap and gc[0] is not used. For moderately-sized _types, runtime
+	// unrolls the program into gc[0] space on first use. The first byte of gc[0]
+	// (gc[0][0]) contains 'unroll' flag saying whether the program is already
+	// unrolled into gc[0] or not.
+	gc      [2]uintptr
+	_string *string
+	x       *uncommontype
+	ptrto   *_type
+	zero    *byte // ptr to the zero value for this _type
+}
+
+type method struct {
+	name    *string
+	pkgpath *string
+	mtyp    *_type
+	typ     *_type
+	ifn     unsafe.Pointer
+	tfn     unsafe.Pointer
+}
+
+type uncommontype struct {
+	name    *string
+	pkgpath *string
+	mhdr    []method
+	m       [0]method
+}
+
+type imethod struct {
+	name    *string
+	pkgpath *string
+	_type   *_type
+}
+
+type interfacetype struct {
+	typ  _type
+	mhdr []imethod
+	m    [0]imethod
+}
+
+type maptype struct {
+	typ           _type
+	key           *_type
+	elem          *_type
+	bucket        *_type // internal _type representing a hash bucket
+	hmap          *_type // internal _type representing a hmap
+	keysize       uint8  // size of key slot
+	indirectkey   bool   // store ptr to key instead of key itself
+	valuesize     uint8  // size of value slot
+	indirectvalue bool   // store ptr to value instead of value itself
+	bucketsize    uint16 // size of bucket
+}
+
+type chantype struct {
+	typ  _type
+	elem *_type
+	dir  uintptr
+}
+
+type slicetype struct {
+	typ  _type
+	elem *_type
+}
+
+type functype struct {
+	typ       _type
+	dotdotdot bool
+	in        slice
+	out       slice
+}
+
+type ptrtype struct {
+	typ  _type
+	elem *_type
+}

src/runtime/type.h

-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Runtime type representation.
-
-typedef struct Type Type;
-typedef struct UncommonType UncommonType;
-typedef struct InterfaceType InterfaceType;
-typedef struct Method Method;
-typedef struct IMethod IMethod;
-typedef struct SliceType SliceType;
-typedef struct FuncType FuncType;
-
-// Needs to be in sync with ../../cmd/ld/decodesym.c:/^commonsize and pkg/reflect/type.go:/type.
-struct Type
-{
-	uintptr size;
-	uint32 hash;
-	uint8 _unused;
-	uint8 align;
-	uint8 fieldAlign;
-	uint8 kind;
-	void* alg;
-	// gc stores type info required for garbage collector.
-	// If (kind&KindGCProg)==0, then gc[0] points at sparse GC bitmap
-	// (no indirection), 4 bits per word.
-	// If (kind&KindGCProg)!=0, then gc[1] points to a compiler-generated
-	// read-only GC program; and gc[0] points to BSS space for sparse GC bitmap.
-	// For huge types (>MaxGCMask), runtime unrolls the program directly into
-	// GC bitmap and gc[0] is not used. For moderately-sized types, runtime
-	// unrolls the program into gc[0] space on first use. The first byte of gc[0]
-	// (gc[0][0]) contains 'unroll' flag saying whether the program is already
-	// unrolled into gc[0] or not.
-	uintptr gc[2];
-	String *string;
-	UncommonType *x;
-	Type *ptrto;
-	byte *zero;  // ptr to the zero value for this type
-};
-
-struct Method
-{
-	String *name;
-	String *pkgPath;
-	Type	*mtyp;
-	Type *typ;
-	void (*ifn)(void);
-	void (*tfn)(void);
-};
-
-struct UncommonType
-{
-	String *name;
-	String *pkgPath;
-	Slice mhdr;
-	Method m[];
-};
-
-struct IMethod
-{
-	String *name;
-	String *pkgPath;
-	Type *type;
-};
-
-struct InterfaceType
-{
-	Type  typ;
-	Slice mhdr;
-	IMethod m[];
-};
-
-struct MapType
-{
-	Type typ;
-	Type *key;
-	Type *elem;
-	Type *bucket;		// internal type representing a hash bucket
-	Type *hmap;		// internal type representing a Hmap
-	uint8 keysize;		// size of key slot
-	bool indirectkey;	// store ptr to key instead of key itself
-	uint8 valuesize;	// size of value slot
-	bool indirectvalue;	// store ptr to value instead of value itself
-	uint16 bucketsize;	// size of bucket
-};
-
-struct ChanType
-{
-	Type typ;
-	Type *elem;
-	uintptr dir;
-};
-
-struct SliceType
-{
-	Type typ;
-	Type *elem;
-};
-
-struct FuncType
-{
-	Type typ;
-	bool dotdotdot;
-	Slice in;
-	Slice out;
-};
-
-struct PtrType
-{
-	Type typ;
-	Type *elem;
-};

src/runtime/typekind.h

@@ -2,6 +2,9 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// Must match runtime and reflect.
+// Included by cmd/gc.
+
 enum {
 	KindBool = 1,
 	KindInt,
@@ -30,9 +33,8 @@ enum {
 	KindStruct,
 	KindUnsafePointer,
 
-	KindDirectIface = 1<<5,
-	KindGCProg = 1<<6,	// Type.gc points to GC program
-	KindNoPointers = 1<<7,
-	KindMask = (1<<5)-1,
+	KindDirectIface = 1 << 5,
+	KindGCProg      = 1 << 6, // Type.gc points to GC program
+	KindNoPointers  = 1 << 7,
+	KindMask        = (1 << 5) - 1,
 };
-

src/runtime/typekind1.go

+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime
+
+const (
+	_KindBool = 1 + iota
+	_KindInt
+	_KindInt8
+	_KindInt16
+	_KindInt32
+	_KindInt64
+	_KindUint
+	_KindUint8
+	_KindUint16
+	_KindUint32
+	_KindUint64
+	_KindUintptr
+	_KindFloat32
+	_KindFloat64
+	_KindComplex64
+	_KindComplex128
+	_KindArray
+	_KindChan
+	_KindFunc
+	_KindInterface
+	_KindMap
+	_KindPtr
+	_KindSlice
+	_KindString
+	_KindStruct
+	_KindUnsafePointer
+
+	_KindDirectIface = 1 << 5
+	_KindGCProg      = 1 << 6 // Type.gc points to GC program
+	_KindNoPointers  = 1 << 7
+	_KindMask        = (1 << 5) - 1
+)