1 /*
2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_CODE_COMPILEDMETHOD_INLINE_HPP
26 #define SHARE_VM_CODE_COMPILEDMETHOD_INLINE_HPP
27
28 #include "code/compiledMethod.hpp"
29 #include "code/nativeInst.hpp"
30 #include "runtime/frame.hpp"
31
32 // When using JVMCI the address might be off by the size of a call instruction.
33 inline bool CompiledMethod::is_deopt_entry(address pc) {
34 return pc == deopt_handler_begin()
35 #if INCLUDE_JVMCI
36 || (is_compiled_by_jvmci() && pc == (deopt_handler_begin() + NativeCall::instruction_size))
37 #endif
38 ;
39 }
40
41
42 // -----------------------------------------------------------------------------
43 // CompiledMethod::get_deopt_original_pc
44 //
45 // Return the original PC for the given PC if:
46 // (a) the given PC belongs to a nmethod and
47 // (b) it is a deopt PC
48
49 inline address CompiledMethod::get_deopt_original_pc(const frame* fr) {
50 if (fr->cb() == NULL) return NULL;
51
52 CompiledMethod* cm = fr->cb()->as_compiled_method_or_null();
53 if (cm != NULL && cm->is_deopt_pc(fr->pc()))
54 return cm->get_original_pc(fr);
55
56 return NULL;
57 }
58
59 #endif //SHARE_VM_CODE_COMPILEDMETHOD_INLINE_HPP
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1 /*
2 * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_CODE_COMPILEDMETHOD_INLINE_HPP
26 #define SHARE_VM_CODE_COMPILEDMETHOD_INLINE_HPP
27
28 #include "code/compiledMethod.hpp"
29 #include "code/nativeInst.hpp"
30 #include "runtime/frame.hpp"
31
32 // When using JVMCI the address might be off by the size of a call instruction.
33 inline bool CompiledMethod::is_deopt_entry(address pc) {
34 return pc == deopt_handler_begin()
35 #if INCLUDE_JVMCI
36 || (is_compiled_by_jvmci() && pc == (deopt_handler_begin() + NativeCall::instruction_size))
37 #endif
38 ;
39 }
40
41 inline void CompiledMethod::release_set_exception_cache(ExceptionCache *ec) {
42 OrderAccess::release_store(&_exception_cache, ec);
43 }
44
45 // -----------------------------------------------------------------------------
46 // CompiledMethod::get_deopt_original_pc
47 //
48 // Return the original PC for the given PC if:
49 // (a) the given PC belongs to a nmethod and
50 // (b) it is a deopt PC
51
52 inline address CompiledMethod::get_deopt_original_pc(const frame* fr) {
53 if (fr->cb() == NULL) return NULL;
54
55 CompiledMethod* cm = fr->cb()->as_compiled_method_or_null();
56 if (cm != NULL && cm->is_deopt_pc(fr->pc()))
57 return cm->get_original_pc(fr);
58
59 return NULL;
60 }
61
62
63 // class ExceptionCache methods
64
65 inline int ExceptionCache::count() { return OrderAccess::load_acquire(&_count); }
66
67 // increment_count is only called under lock, but there may be concurrent readers.
68 inline void ExceptionCache::increment_count() { OrderAccess::release_store(&_count, _count + 1); }
69
70
71 #endif //SHARE_VM_CODE_COMPILEDMETHOD_INLINE_HPP
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