| /* |
| * Copyright 1997-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| */ |
| |
| inline void AbstractAssembler::sync() { |
| CodeSection* cs = code_section(); |
| guarantee(cs->start() == _code_begin, "must not shift code buffer"); |
| cs->set_end(_code_pos); |
| } |
| |
| inline void AbstractAssembler::emit_byte(int x) { |
| assert(isByte(x), "not a byte"); |
| *(unsigned char*)_code_pos = (unsigned char)x; |
| _code_pos += sizeof(unsigned char); |
| sync(); |
| } |
| |
| |
| inline void AbstractAssembler::emit_word(int x) { |
| *(short*)_code_pos = (short)x; |
| _code_pos += sizeof(short); |
| sync(); |
| } |
| |
| |
| inline void AbstractAssembler::emit_long(jint x) { |
| *(jint*)_code_pos = x; |
| _code_pos += sizeof(jint); |
| sync(); |
| } |
| |
| inline void AbstractAssembler::emit_address(address x) { |
| *(address*)_code_pos = x; |
| _code_pos += sizeof(address); |
| sync(); |
| } |
| |
| inline address AbstractAssembler::inst_mark() const { |
| return code_section()->mark(); |
| } |
| |
| |
| inline void AbstractAssembler::set_inst_mark() { |
| code_section()->set_mark(); |
| } |
| |
| |
| inline void AbstractAssembler::clear_inst_mark() { |
| code_section()->clear_mark(); |
| } |
| |
| |
| inline void AbstractAssembler::relocate(RelocationHolder const& rspec, int format) { |
| assert(!pd_check_instruction_mark() |
| || inst_mark() == NULL || inst_mark() == _code_pos, |
| "call relocate() between instructions"); |
| code_section()->relocate(_code_pos, rspec, format); |
| } |
| |
| |
| inline CodeBuffer* AbstractAssembler::code() const { |
| return code_section()->outer(); |
| } |
| |
| inline int AbstractAssembler::sect() const { |
| return code_section()->index(); |
| } |
| |
| inline int AbstractAssembler::locator() const { |
| return CodeBuffer::locator(offset(), sect()); |
| } |
| |
| inline address AbstractAssembler::target(Label& L) { |
| return code_section()->target(L, pc()); |
| } |
| |
| inline int Label::loc_pos() const { |
| return CodeBuffer::locator_pos(loc()); |
| } |
| |
| inline int Label::loc_sect() const { |
| return CodeBuffer::locator_sect(loc()); |
| } |
| |
| inline void Label::bind_loc(int pos, int sect) { |
| bind_loc(CodeBuffer::locator(pos, sect)); |
| } |
| |
| address AbstractAssembler::address_constant(Label& L) { |
| address c = NULL; |
| address ptr = start_a_const(sizeof(c), sizeof(c)); |
| if (ptr != NULL) { |
| relocate(Relocation::spec_simple(relocInfo::internal_word_type)); |
| *(address*)ptr = c = code_section()->target(L, ptr); |
| _code_pos = ptr + sizeof(c); |
| end_a_const(); |
| } |
| return ptr; |
| } |
| |
| address AbstractAssembler::address_table_constant(GrowableArray<Label*> labels) { |
| int addressSize = sizeof(address); |
| int sizeLabel = addressSize * labels.length(); |
| address ptr = start_a_const(sizeLabel, addressSize); |
| |
| if (ptr != NULL) { |
| address *labelLoc = (address*)ptr; |
| for (int i=0; i < labels.length(); i++) { |
| emit_address(code_section()->target(*labels.at(i), (address)&labelLoc[i])); |
| code_section()->relocate((address)&labelLoc[i], relocInfo::internal_word_type); |
| } |
| end_a_const(); |
| } |
| return ptr; |
| } |