87 lines
3.1 KiB
C++
87 lines
3.1 KiB
C++
/*
|
|
* Copyright (c) 2018, 2019, Oracle and/or its affiliates. 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.
|
|
*
|
|
*/
|
|
|
|
#ifndef SHARE_OOPS_METHOD_INLINE_HPP
|
|
#define SHARE_OOPS_METHOD_INLINE_HPP
|
|
|
|
#include "oops/method.hpp"
|
|
#include "runtime/orderAccess.hpp"
|
|
|
|
inline address Method::from_compiled_entry() const {
|
|
return OrderAccess::load_acquire(&_from_compiled_entry);
|
|
}
|
|
|
|
inline address Method::from_interpreted_entry() const {
|
|
return OrderAccess::load_acquire(&_from_interpreted_entry);
|
|
}
|
|
|
|
inline void Method::set_method_data(MethodData* data) {
|
|
// The store into method must be released. On platforms without
|
|
// total store order (TSO) the reference may become visible before
|
|
// the initialization of data otherwise.
|
|
OrderAccess::release_store(&_method_data, data);
|
|
}
|
|
|
|
inline CompiledMethod* volatile Method::code() const {
|
|
assert( check_code(), "" );
|
|
return OrderAccess::load_acquire(&_code);
|
|
}
|
|
|
|
// Write (bci, line number) pair to stream
|
|
inline void CompressedLineNumberWriteStream::write_pair_regular(int bci_delta, int line_delta) {
|
|
// bci and line number does not compress into single byte.
|
|
// Write out escape character and use regular compression for bci and line number.
|
|
write_byte((jubyte)0xFF);
|
|
write_signed_int(bci_delta);
|
|
write_signed_int(line_delta);
|
|
}
|
|
|
|
inline void CompressedLineNumberWriteStream::write_pair_inline(int bci, int line) {
|
|
int bci_delta = bci - _bci;
|
|
int line_delta = line - _line;
|
|
_bci = bci;
|
|
_line = line;
|
|
// Skip (0,0) deltas - they do not add information and conflict with terminator.
|
|
if (bci_delta == 0 && line_delta == 0) return;
|
|
// Check if bci is 5-bit and line number 3-bit unsigned.
|
|
if (((bci_delta & ~0x1F) == 0) && ((line_delta & ~0x7) == 0)) {
|
|
// Compress into single byte.
|
|
jubyte value = ((jubyte) bci_delta << 3) | (jubyte) line_delta;
|
|
// Check that value doesn't match escape character.
|
|
if (value != 0xFF) {
|
|
write_byte(value);
|
|
return;
|
|
}
|
|
}
|
|
write_pair_regular(bci_delta, line_delta);
|
|
}
|
|
|
|
inline void CompressedLineNumberWriteStream::write_pair(int bci, int line) {
|
|
write_pair_inline(bci, line);
|
|
}
|
|
|
|
inline bool Method::has_compiled_code() const { return code() != NULL; }
|
|
|
|
#endif // SHARE_OOPS_METHOD_INLINE_HPP
|