/* * mips/jit.h * Common MIPS JIT configuration information. * * Copyright (c) 1996, 1997 *      Transvirtual Technologies, Inc.  All rights reserved. * * Copyright (c) 2003 *	Kaffe.org contributors, see ChangeLogs for details.  All rights reserved. * * See the file "license.terms" for information on usage and redistribution * of this file. * * Written by Christian Krusel <chrkr@uni-paderborn.de>, 1997. * Modified by Michael Chen <mikey@hydra.stanford.edu>, 1998. * last changed 2.15.98 */#ifndef __mips_jit_h#define __mips_jit_h#if defined (_MIPS_SIM) && (_MIPS_SIM != _MIPS_SIM_ABI32)#error "Calling convention other than o32 not supported"#endif/**//* Exception handling information. *//**//* Structure of exception frame on stack */typedef struct _exceptionFrame {	char*	return_frame;	char*	return_pc;} exceptionFrame;extern void __mipsGetNextFrame(struct _exceptionFrame*);#define	STACK_NEXT_FRAME(F)	__mipsGetNextFrame(F)#define	FIRSTFRAME(F,O)		(F).return_frame = 0; \				__mipsGetNextFrame(&F)#define	NEXTFRAME(F)		((F)->return_frame)#define	PCFRAME(F)		((F)->return_pc)#define	FPFRAME(F)		((F)->return_frame)/* Extract the object argument from given frame */#define FRAMEOBJECT(obj, f, einfo)					\	(obj) = (*(Hjava_lang_Object**)(f))/**//* Method dispatch.  *//**/#define HAVE_TRAMPOLINE/* The layout of this struct is know by inline assembly.  */typedef struct _methodTrampoline {	unsigned code[5];	struct _methods *meth;	void** where;	unsigned pad[1];} methodTrampoline;extern void mips_do_fixup_trampoline(void);/* We must construct jump address since jal can not hold absolute address */#define FILL_IN_TRAMPOLINE(t,m,w)					\	do {								\		uint32 pc = (unsigned int)mips_do_fixup_trampoline;	\		(t)->code[0] = 0x001f1021;	/* addu $2,$31,$0 */	\		(t)->code[1] = 0x3c190000 | (pc >> 16);	/* lui $25,addr(high) */ \		(t)->code[2] = 0x37390000 | (pc & 0xffff);/* ori $25,$25,addr(low) */ \		(t)->code[3] = 0x0320f809;	/* jalr $31,$25 */		\		(t)->code[4] = 0x00000000;	/* nop */		\		(t)->meth = (m);					\		(t)->where = (w);					\	} while (0)#define FIXUP_TRAMPOLINE_DECL	Method *_meth, void* _where#define FIXUP_TRAMPOLINE_INIT	meth = _meth; where = _where;/**//* Register management information. *//**/#define	RIL	(Rint|Rref)#define	RFD	(Rfloat|Rdouble)#define	RG	(Rglobal|Rnosaveoncall)/* Define the register set, bereits an mips angepasst*/#define	REGISTER_SET							\	{ /* i0 */	0, 0, Reserved,		0, 0, 0   },		\	{ /* i1 */	0, 0, Reserved,		0, 0, 1   },		\	{ /* i2 */	0, 0, RIL|Reserved,	0, 0, 2   },		\	{ /* i3 */	0, 0, RIL|Reserved,	0, 0, 3   },		\	{ /* i4 */	0, 0, RIL,		0, 0, 4   },		\	{ /* i5 */	0, 0, RIL,		0, 0, 5   },		\	{ /* i6 */	0, 0, RIL,		0, 0, 6   },		\	{ /* i7 */	0, 0, RIL,		0, 0, 7   },		\	{ /* i8 */	0, 0, RIL,		0, 0, 8   },		\	{ /* i9 */	0, 0, RIL,		0, 0, 9   },		\	{ /* i10 */	0, 0, RIL,		0, 0, 10   },		\	{ /* i11 */	0, 0, RIL,		0, 0, 11   },		\	{ /* i12 */	0, 0, RIL,		0, 0, 12   },		\	{ /* i13 */	0, 0, RIL,		0, 0, 13   },		\	{ /* i14 */	0, 0, RIL,		0, 0, 14   },		\	{ /* i15 */	0, 0, RIL,		0, 0, 15   },		\	{ /* i16 */	0, 0, RIL,		RG, 0, 16   },\	{ /* i17 */	0, 0, RIL,		RG, 0, 17   },\	{ /* i18 */	0, 0, RIL,		RG, 0, 18   },\	{ /* i19 */	0, 0, RIL,		RG, 0, 19   },\	{ /* i20 */	0, 0, RIL,		RG, 0, 20   },\	{ /* i21 */	0, 0, RIL,		RG, 0, 21   },\	{ /* i22 */	0, 0, RIL,		RG, 0, 22   },\	{ /* i23 */	0, 0, RIL,		RG, 0, 23   },\	{ /* i24 */	0, 0, RIL,		0, 0, 24   },		\	{ /* i25 */	0, 0, RIL,		0, 0, 25   },		\	{ /* i26 */	0, 0, Reserved,		0, 0, 26   },		\	{ /* i27 */	0, 0, Reserved,		0, 0, 27   },		\	{ /* i28/gp */	0, 0, Reserved,		0, 0, 28   },\	{ /* i29 */	0, 0, Reserved, 	Rnosaveoncall, 0, 29   },\	{ /* i30 */	0, 0, Reserved,		Rnosaveoncall, 0, 30   },\	{ /* i31 */	0, 0, Reserved,		Rnosaveoncall, 0, 31   },\	{ /* f0 */	0, 0, RFD|Reserved,	0, 0, 0   },		\	{ /* f1 */	0, 0, Reserved,		0, 0, 1   },		\	{ /* f2 */	0, 0, Reserved,		0, 0, 2   },		\	{ /* f3 */	0, 0, Reserved,		0, 0, 3   },		\	{ /* f4 */	0, 0, RFD,		0, 0, 4   },		\	{ /* f5 */	0, 0, Reserved,		0, 0, 5   },		\	{ /* f6 */	0, 0, RFD,		0, 0, 6   },		\	{ /* f7 */	0, 0, Reserved,		0, 0, 7   },		\	{ /* f8 */	0, 0, RFD,		0, 0, 8   },		\	{ /* f9 */	0, 0, Reserved,		0, 0, 9   },		\	{ /* f10 */	0, 0, RFD,		0, 0, 10   },		\	{ /* f11 */	0, 0, Reserved,		0, 0, 11   },		\	{ /* f12 */	0, 0, RFD,		0, 0, 12   },		\	{ /* f13 */	0, 0, Reserved,		0, 0, 13   },		\	{ /* f14 */	0, 0, RFD,		0, 0, 14   },		\	{ /* f15 */	0, 0, Reserved,		0, 0, 15   },		\	{ /* f16 */	0, 0, RFD,		0, 0, 16   },		\	{ /* f17 */	0, 0, Reserved,		0, 0, 17   },		\	{ /* f18 */	0, 0, RFD,		0, 0, 18   },		\	{ /* f19 */	0, 0, Reserved,		0, 0, 19   },		\	{ /* f20 */	0, 0, RFD,		0, 0, 20   },		\	{ /* f21 */	0, 0, Reserved,		0, 0, 21   },		\	{ /* f22 */	0, 0, RFD,		0, 0, 22   },		\	{ /* f23 */	0, 0, Reserved,		0, 0, 23   },		\	{ /* f24 */	0, 0, RFD,		0, 0, 24   },		\	{ /* f25 */	0, 0, Reserved,		0, 0, 25   },		\	{ /* f26 */	0, 0, RFD,		0, 0, 26   },		\	{ /* f27 */	0, 0, Reserved,		0, 0, 27   },		\	{ /* f28 */	0, 0, RFD,		0, 0, 28   },		\	{ /* f29 */	0, 0, Reserved,		0, 0, 29   },		\	{ /* f30 */	0, 0, RFD,		0, 0, 30   },		\	{ /* f31 */	0, 0, Reserved,		0, 0, 31   },		\/* Number of registers in the register set */#define	NR_REGISTERS	64/**//* We must setup the incoming argument state *//**/#define NR_ARGUMENTS	4/**//* Number of global registers *//**/#define	NR_GLOBALS	8/**//* Define to use the constant pool. *//**/#define	USE_JIT_CONSTANT_POOL	1/**//* Define to use stack limit checking - give it the place to find the limit *//**/#define	STACK_LIMIT()	SLOT2ARGOFFSET(maxArgs)/**//* Number of registers saved in the prologue. *//**/#define	REGISTERS_SAVED	12/**//* Opcode generation. *//**//* Extra label types */#define Llong16b	(Larchdepend+0)#define Llong16x16	(Larchdepend+1)#define Llong26		(Larchdepend+2)#define Lexception	(Larchdepend+3)#define Llong16		(Larchdepend+4)/* HACK XXX - We add in a little extra space to stop the JIT from breaking */#define	EXTRASPACE	2#define	FRAMESIZE \	STACKALIGN(((maxLocal-maxArgs) + maxStack + maxTemp + \		REGISTERS_SAVED + EXTRASPACE + max_args) * SLOTSIZE)#define	LABEL_Lframe(P,V,L) \	{ \		int framesize = FRAMESIZE; \		assert((framesize & 0xFFFFF000) == 0); \		*(P) = (*(P) & 0xFFFF0000) | ((-framesize) & 0xFFFF); \	}#define	LABEL_Lnegframe(P,V,L) \	{ \		int framesize = FRAMESIZE; \		assert((framesize & 0xFFFFF000) == 0); \		*(P) = (*(P) & 0xFFFF0000) | ((framesize) & 0xFFFF); \	}#define	LABEL_Llong16b(P,V,L)	(P)[0]=((P)[0]&0xFFFF0000)|((((V)-4)>>2)&0xFFFF)#define	LABEL_Llong16(P,V,L)	(P)[0]=((P)[0]&0xFFFF0000)|(((V))&0xFFFF)#define LABEL_Llong16x16(P,V,L) (P)[1]=((P)[1]&0xFFFF0000)|((V) & 0xFFFF); \                                (P)[0]=((P)[0]&0xFFFF0000)|(((V)>>16)&0xFFFF)#if defined(USE_JIT_CONSTANT_POOL)#define	LABEL_Lexception(P,V,L)	LABEL_Lframe(P,V,L); \				LABEL_Llong16x16((P)+1,codebase,L)#else#define	LABEL_Lexception(P,V,L)	LABEL_Lframe(P,V,L)#endif#define	EXTRA_LABELS(P,D,L)						\	case Lframe:		LABEL_Lframe(P,D,L);		break;	\	case Lnegframe:		LABEL_Lnegframe(P,D,L);		break;	\	case Llong16b:		LABEL_Llong16b(P,D,L);		break;	\	case Llong16x16:	LABEL_Llong16x16(P,D,L);	break;	\	case Lexception:	LABEL_Lexception(P,D,L);	break;	\	case Llong16:		LABEL_Llong16(P,D,L);		break;/**//* Slot management information. *//**//* Size of each slot */#define	SLOTSIZE		4#define	FRAMEALIGN		16#define	STACKALIGN(v)		(((v) + FRAMEALIGN - 1) & -FRAMEALIGN)/* We push arguments low to high. */#define	PUSHARG_FORWARDS	1/* * A mips stack frame looks like: * * *      |  caller's frame               | *      |-------------------------------| *      |  incoming                     | *      |  arguments                    | * $fp->|-------------------------------| *      |  locals and                   | *      |  temporaries                  | *      |-------------------------------| *      |  callee-saved registers       | *      |                               | *      |-------------------------------|  - *      |  outgoing                     |  | max *      |  arguments                    |  | Push * $sp->|-------------------------------|  - *      |  callee's frame               | * *//* We need to do some special initialization for the MIPS JIT */struct _methods;extern void __mipsInitJit(struct _methods*);#define	INIT_JIT_MD(M)		__mipsInitJit(M)/* Generate slot offset for an argument relative to the frame pointer */#define SLOT2ARGOFFSET(N)	(argMap[N] * SLOTSIZE)/* Generate slot offset for a local (non-argument) */#define SLOT2LOCALOFFSET(N) \	(-SLOTSIZE * (REGISTERS_SAVED + (N) - maxArgs + EXTRASPACE))/* Generate slot offset for an argument push (relative to $sp) */#define SLOT2PUSHOFFSET(N)	((N) * SLOTSIZE)/* Wrap up a native call for the JIT */#define KAFFEJIT_TO_NATIVE(_m)/* On the mips we need to flush the data cache after generating new code */#if defined(__NetBSD__)#include <mips/cachectl.h>#else#include <sys/cachectl.h>#endif#define	FLUSH_DCACHE(_start,_end) cacheflush((_start), (uintp)(_end) - (uintp)(_start), BCACHE)/* Argument register mapping */extern int* argMap;extern int totalMaxArgs;extern int max_args;#endif