/*
* Copyright ( c ) 2000 , 2020 , Oracle and / or its affiliates . All rights reserved .
* Copyright ( c ) 2012 , 2015 SAP SE . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*
*/
#include "precompiled.hpp"
#include "asm/assembler.inline.hpp"
#include "code/relocInfo.hpp"
#include "nativeInst_ppc.hpp"
#include "oops/compressedOops.inline.hpp"
#include "oops/klass.inline.hpp"
#include "oops/oop.hpp"
#include "runtime/safepoint.hpp"
void Relocation::pd_set_data_value(address x, intptr_t o, bool verify_only) {
// Currently we don't support splitting of relocations.
assert(o == 0 , "tried to split relocations" );
if (!verify_only) {
if (format() != 1 ) {
nativeMovConstReg_at(addr())->set_data_plain(((intptr_t)x), code());
} else {
assert(type() == relocInfo::oop_type, "how to encode else?" );
narrowOop no = CompressedOops::encode(cast_to_oop(x));
nativeMovConstReg_at(addr())->set_narrow_oop(no, code());
}
} else {
guarantee((address) (nativeMovConstReg_at(addr())->data()) == x, "data must match" );
}
}
address Relocation::pd_call_destination(address orig_addr) {
intptr_t adj = 0 ;
address inst_loc = addr();
if (orig_addr != NULL) {
// We just moved this call instruction from orig_addr to addr().
// This means its target will appear to have grown by addr() - orig_addr.
adj = -(inst_loc - orig_addr);
}
if (NativeFarCall::is_far_call_at(inst_loc)) {
NativeFarCall* call = nativeFarCall_at(inst_loc);
return call->destination() + (intptr_t)(call->is_pcrelative() ? adj : 0 );
} else if (NativeJump::is_jump_at(inst_loc)) {
NativeJump* jump = nativeJump_at(inst_loc);
return jump->jump_destination() + (intptr_t)(jump->is_pcrelative() ? adj : 0 );
} else if (NativeConditionalFarBranch::is_conditional_far_branch_at(inst_loc)) {
NativeConditionalFarBranch* branch = NativeConditionalFarBranch_at(inst_loc);
return branch->branch_destination();
} else {
orig_addr = nativeCall_at(inst_loc)->get_trampoline();
if (orig_addr == NULL) {
return (address) -1 ;
} else {
return ((NativeCallTrampolineStub*)orig_addr)->destination();
}
}
}
void Relocation::pd_set_call_destination(address x) {
address inst_loc = addr();
if (NativeFarCall::is_far_call_at(inst_loc)) {
NativeFarCall* call = nativeFarCall_at(inst_loc);
call->set_destination(x);
} else if (NativeJump::is_jump_at(inst_loc)) {
NativeJump* jump= nativeJump_at(inst_loc);
jump->set_jump_destination(x);
} else if (NativeConditionalFarBranch::is_conditional_far_branch_at(inst_loc)) {
NativeConditionalFarBranch* branch = NativeConditionalFarBranch_at(inst_loc);
branch->set_branch_destination(x);
} else {
NativeCall* call = nativeCall_at(inst_loc);
call->set_destination_mt_safe(x, false );
}
}
address* Relocation::pd_address_in_code() {
ShouldNotReachHere();
return 0 ;
}
address Relocation::pd_get_address_from_code() {
return (address)(nativeMovConstReg_at(addr())->data());
}
void poll_Relocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) {
}
void metadata_Relocation::pd_fix_value(address x) {
}
Messung V0.5 in Prozent C=93 H=94 G=93
¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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