Mercurial > hg > graal-compiler
view src/cpu/ppc/vm/relocInfo_ppc.cpp @ 21311:710fc7216c56
consolidated ReplacementContext and IntrinsicContext
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 12 May 2015 13:56:11 +0200 |
parents | 7687c56b6693 |
children |
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/* * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. * Copyright 2012, 2013 SAP AG. 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 "assembler_ppc.inline.hpp" #include "code/relocInfo.hpp" #include "nativeInst_ppc.hpp" #include "oops/oop.inline.hpp" #include "runtime/safepoint.hpp" void Relocation::pd_set_data_value(address x, intptr_t o, bool verify_only) { bool copy_back_to_oop_pool = true; // TODO: PPC port // The following comment is from the declaration of DataRelocation: // // "The "o" (displacement) argument is relevant only to split relocations // on RISC machines. In some CPUs (SPARC), the set-hi and set-lo ins'ns // can encode more than 32 bits between them. This allows compilers to // share set-hi instructions between addresses that differ by a small // offset (e.g., different static variables in the same class). // On such machines, the "x" argument to set_value on all set-lo // instructions must be the same as the "x" argument for the // corresponding set-hi instructions. The "o" arguments for the // set-hi instructions are ignored, and must not affect the high-half // immediate constant. The "o" arguments for the set-lo instructions are // added into the low-half immediate constant, and must not overflow it." // // Currently we don't support splitting of relocations, so o must be // zero: 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 || type() == relocInfo::metadata_type, "how to encode else?"); narrowOop no = (type() == relocInfo::oop_type) ? oopDesc::encode_heap_oop((oop)x) : Klass::encode_klass((Klass*)x); nativeMovConstReg_at(addr())->set_narrow_oop(no, code()); } } else { assert((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 { // There are two instructions at the beginning of a stub, therefore we // load at orig_addr + 8. orig_addr = nativeCall_at(inst_loc)->get_trampoline(); if (orig_addr == NULL) { return (address) -1; } else { return (address) nativeMovConstReg_at(orig_addr + 8)->data(); } } } 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 poll_return_Relocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) { } void metadata_Relocation::pd_fix_value(address x) { }