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
|
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 inline bool CompiledMethod::is_deopt_pc(address pc) { return is_deopt_entry(pc) || is_deopt_mh_entry(pc); }
33
34 // When using JVMCI the address might be off by the size of a call instruction.
35 inline bool CompiledMethod::is_deopt_entry(address pc) {
36 return pc == deopt_handler_begin()
37 #if INCLUDE_JVMCI
38 || (is_compiled_by_jvmci() && pc == (deopt_handler_begin() + NativeCall::instruction_size))
39 #endif
40 ;
41 }
42
43 inline void CompiledMethod::release_set_exception_cache(ExceptionCache *ec) {
44 OrderAccess::release_store(&_exception_cache, ec);
45 }
46
47 // -----------------------------------------------------------------------------
48 // CompiledMethod::get_deopt_original_pc
49 //
50 // Return the original PC for the given PC if:
51 // (a) the given PC belongs to a nmethod and
52 // (b) it is a deopt PC
53
54 inline address CompiledMethod::get_deopt_original_pc(const frame* fr) {
55 if (fr->cb() == NULL) return NULL;
56
57 CompiledMethod* cm = fr->cb()->as_compiled_method_or_null();
58 if (cm != NULL && cm->is_deopt_pc(fr->pc()))
59 return cm->get_original_pc(fr);
60
61 return NULL;
62 }
63
64
65 // class ExceptionCache methods
66
67 inline int ExceptionCache::count() { return OrderAccess::load_acquire(&_count); }
68
69 address ExceptionCache::pc_at(int index) {
70 assert(index >= 0 && index < count(),"");
71 return _pc[index];
72 }
73
74 address ExceptionCache::handler_at(int index) {
75 assert(index >= 0 && index < count(),"");
76 return _handler[index];
77 }
78
79 // increment_count is only called under lock, but there may be concurrent readers.
80 inline void ExceptionCache::increment_count() { OrderAccess::release_store(&_count, _count + 1); }
81
82
83 #endif //SHARE_VM_CODE_COMPILEDMETHOD_INLINE_HPP
|