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src/cpu/sparc/vm/relocInfo_sparc.cpp@55fb97c4c58d (annotated)

src/cpu/sparc/vm/relocInfo_sparc.cpp

Tue, 24 Dec 2013 11:48:39 -0800

author

mikael

date

Tue, 24 Dec 2013 11:48:39 -0800

changeset 6198

55fb97c4c58d

parent 5528

740e263c80c6

child 6876

710a3c8b516e

child 8647

0b611970fa8b

permissions

-rw-r--r--

8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
Summary: Copyright year updated for files modified during 2013
Reviewed-by: twisti, iveresov

duke@435	1	/*
hseigel@5528	2	* Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#include "precompiled.hpp"
twisti@4323	26	#include "asm/assembler.hpp"
stefank@2314	27	#include "code/relocInfo.hpp"
stefank@2314	28	#include "nativeInst_sparc.hpp"
stefank@2314	29	#include "oops/oop.inline.hpp"
stefank@2314	30	#include "runtime/safepoint.hpp"
duke@435	31
never@2657	32	void Relocation::pd_set_data_value(address x, intptr_t o, bool verify_only) {
duke@435	33	NativeInstruction* ip = nativeInstruction_at(addr());
duke@435	34	jint inst = ip->long_at(0);
duke@435	35	assert(inst != NativeInstruction::illegal_instruction(), "no breakpoint");
duke@435	36	switch (Assembler::inv_op(inst)) {
duke@435	37
duke@435	38	case Assembler::ldst_op:
duke@435	39	#ifdef ASSERT
duke@435	40	switch (Assembler::inv_op3(inst)) {
duke@435	41	case Assembler::lduw_op3:
duke@435	42	case Assembler::ldub_op3:
duke@435	43	case Assembler::lduh_op3:
duke@435	44	case Assembler::ldd_op3:
duke@435	45	case Assembler::ldsw_op3:
duke@435	46	case Assembler::ldsb_op3:
duke@435	47	case Assembler::ldsh_op3:
duke@435	48	case Assembler::ldx_op3:
duke@435	49	case Assembler::ldf_op3:
duke@435	50	case Assembler::lddf_op3:
duke@435	51	case Assembler::stw_op3:
duke@435	52	case Assembler::stb_op3:
duke@435	53	case Assembler::sth_op3:
duke@435	54	case Assembler::std_op3:
duke@435	55	case Assembler::stx_op3:
duke@435	56	case Assembler::stf_op3:
duke@435	57	case Assembler::stdf_op3:
duke@435	58	case Assembler::casa_op3:
duke@435	59	case Assembler::casxa_op3:
duke@435	60	break;
duke@435	61	default:
duke@435	62	ShouldNotReachHere();
duke@435	63	}
duke@435	64	goto do_non_sethi;
duke@435	65	#endif
duke@435	66
duke@435	67	case Assembler::arith_op:
duke@435	68	#ifdef ASSERT
duke@435	69	switch (Assembler::inv_op3(inst)) {
duke@435	70	case Assembler::or_op3:
duke@435	71	case Assembler::add_op3:
duke@435	72	case Assembler::jmpl_op3:
duke@435	73	break;
duke@435	74	default:
duke@435	75	ShouldNotReachHere();
duke@435	76	}
duke@435	77	do_non_sethi:;
duke@435	78	#endif
duke@435	79	{
duke@435	80	guarantee(Assembler::inv_immed(inst), "must have a simm13 field");
duke@435	81	int simm13 = Assembler::low10((intptr_t)x) + o;
duke@435	82	guarantee(Assembler::is_simm13(simm13), "offset can't overflow simm13");
duke@435	83	inst &= ~Assembler::simm( -1, 13);
duke@435	84	inst |= Assembler::simm(simm13, 13);
never@2657	85	if (verify_only) {
never@2657	86	assert(ip->long_at(0) == inst, "instructions must match");
never@2657	87	} else {
never@2657	88	ip->set_long_at(0, inst);
never@2657	89	}
duke@435	90	}
duke@435	91	break;
duke@435	92
duke@435	93	case Assembler::branch_op:
duke@435	94	{
duke@435	95	#ifdef _LP64
duke@435	96	jint inst2;
duke@435	97	guarantee(Assembler::inv_op2(inst)==Assembler::sethi_op2, "must be sethi");
kvn@599	98	if (format() != 0) {
roland@4159	99	assert(type() == relocInfo::oop_type || type() == relocInfo::metadata_type, "only narrow oops or klasses case");
hseigel@5528	100	jint np = type() == relocInfo::oop_type ? oopDesc::encode_heap_oop((oop)x) : Klass::encode_klass((Klass*)x);
kvn@599	101	inst &= ~Assembler::hi22(-1);
kvn@599	102	inst |= Assembler::hi22((intptr_t)np);
never@2657	103	if (verify_only) {
never@2657	104	assert(ip->long_at(0) == inst, "instructions must match");
never@2657	105	} else {
never@2657	106	ip->set_long_at(0, inst);
never@2657	107	}
kvn@599	108	inst2 = ip->long_at( NativeInstruction::nop_instruction_size );
kvn@599	109	guarantee(Assembler::inv_op(inst2)==Assembler::arith_op, "arith op");
never@2657	110	if (verify_only) {
never@2657	111	assert(ip->long_at(NativeInstruction::nop_instruction_size) == NativeInstruction::set_data32_simm13( inst2, (intptr_t)np),
never@2657	112	"instructions must match");
never@2657	113	} else {
never@2657	114	ip->set_long_at(NativeInstruction::nop_instruction_size, NativeInstruction::set_data32_simm13( inst2, (intptr_t)np));
never@2657	115	}
kvn@599	116	break;
kvn@599	117	}
never@2657	118	if (verify_only) {
never@2657	119	ip->verify_data64_sethi( ip->addr_at(0), (intptr_t)x );
never@2657	120	} else {
never@2657	121	ip->set_data64_sethi( ip->addr_at(0), (intptr_t)x );
never@2657	122	}
duke@435	123	#else
duke@435	124	guarantee(Assembler::inv_op2(inst)==Assembler::sethi_op2, "must be sethi");
duke@435	125	inst &= ~Assembler::hi22( -1);
duke@435	126	inst |= Assembler::hi22((intptr_t)x);
duke@435	127	// (ignore offset; it doesn't play into the sethi)
never@2657	128	if (verify_only) {
never@2657	129	assert(ip->long_at(0) == inst, "instructions must match");
never@2657	130	} else {
never@2657	131	ip->set_long_at(0, inst);
never@2657	132	}
duke@435	133	#endif
duke@435	134	}
duke@435	135	break;
duke@435	136
duke@435	137	default:
duke@435	138	guarantee(false, "instruction must perform arithmetic or memory access");
duke@435	139	}
duke@435	140	}
duke@435	141
duke@435	142
duke@435	143	address Relocation::pd_call_destination(address orig_addr) {
duke@435	144	intptr_t adj = 0;
duke@435	145	if (orig_addr != NULL) {
duke@435	146	// We just moved this call instruction from orig_addr to addr().
duke@435	147	// This means its target will appear to have grown by addr() - orig_addr.
duke@435	148	adj = -( addr() - orig_addr );
duke@435	149	}
duke@435	150	if (NativeCall::is_call_at(addr())) {
duke@435	151	NativeCall* call = nativeCall_at(addr());
duke@435	152	return call->destination() + adj;
duke@435	153	}
duke@435	154	if (NativeFarCall::is_call_at(addr())) {
duke@435	155	NativeFarCall* call = nativeFarCall_at(addr());
duke@435	156	return call->destination() + adj;
duke@435	157	}
duke@435	158	// Special case: Patchable branch local to the code cache.
duke@435	159	// This will break badly if the code cache grows larger than a few Mb.
duke@435	160	NativeGeneralJump* br = nativeGeneralJump_at(addr());
duke@435	161	return br->jump_destination() + adj;
duke@435	162	}
duke@435	163
duke@435	164
duke@435	165	void Relocation::pd_set_call_destination(address x) {
duke@435	166	if (NativeCall::is_call_at(addr())) {
duke@435	167	NativeCall* call = nativeCall_at(addr());
duke@435	168	call->set_destination(x);
duke@435	169	return;
duke@435	170	}
duke@435	171	if (NativeFarCall::is_call_at(addr())) {
duke@435	172	NativeFarCall* call = nativeFarCall_at(addr());
duke@435	173	call->set_destination(x);
duke@435	174	return;
duke@435	175	}
duke@435	176	// Special case: Patchable branch local to the code cache.
duke@435	177	// This will break badly if the code cache grows larger than a few Mb.
duke@435	178	NativeGeneralJump* br = nativeGeneralJump_at(addr());
duke@435	179	br->set_jump_destination(x);
duke@435	180	}
duke@435	181
duke@435	182
duke@435	183	address* Relocation::pd_address_in_code() {
duke@435	184	// SPARC never embeds addresses in code, at present.
duke@435	185	//assert(type() == relocInfo::oop_type, "only oops are inlined at present");
duke@435	186	return (address*)addr();
duke@435	187	}
duke@435	188
duke@435	189
duke@435	190	address Relocation::pd_get_address_from_code() {
duke@435	191	// SPARC never embeds addresses in code, at present.
duke@435	192	//assert(type() == relocInfo::oop_type, "only oops are inlined at present");
duke@435	193	return *(address*)addr();
duke@435	194	}
duke@435	195
never@739	196	void poll_Relocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) {
never@739	197	}
never@739	198
never@739	199	void poll_return_Relocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) {
never@739	200	}
coleenp@4037	201
coleenp@4037	202	void metadata_Relocation::pd_fix_value(address x) {
coleenp@4037	203	}