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 #include "cds/archiveBuilder.hpp"
26 #include "cppstdlib/type_traits.hpp"


27 #include "oops/resolvedFieldEntry.hpp"

28 
29 static_assert(std::is_trivially_copyable_v<ResolvedFieldEntry>);
30 
31 // Detect inadvertently introduced trailing padding.
32 class ResolvedFieldEntryWithExtra : public ResolvedFieldEntry {
33   u1 _extra_field;
34 };
35 static_assert(sizeof(ResolvedFieldEntryWithExtra) > sizeof(ResolvedFieldEntry));
36 
37 void ResolvedFieldEntry::print_on(outputStream* st) const {
38   st->print_cr("Field Entry:");
39 
40   if (field_holder() != nullptr) {
41     st->print_cr(" - Holder: " INTPTR_FORMAT " %s", p2i(field_holder()), field_holder()->external_name());
42   } else {
43     st->print_cr("- Holder: null");
44   }
45   st->print_cr(" - Offset: %d", field_offset());
46   st->print_cr(" - Field Index: %d", field_index());
47   st->print_cr(" - CP Index: %d", constant_pool_index());
48   st->print_cr(" - TOS: %s", type2name(as_BasicType((TosState)tos_state())));
49   st->print_cr(" - Is Final: %d", is_final());
50   st->print_cr(" - Is Volatile: %d", is_volatile());



51   st->print_cr(" - Get Bytecode: %s", Bytecodes::name((Bytecodes::Code)get_code()));
52   st->print_cr(" - Put Bytecode: %s", Bytecodes::name((Bytecodes::Code)put_code()));
53 }
54 









55 #if INCLUDE_CDS
56 void ResolvedFieldEntry::remove_unshareable_info() {
57   *this = ResolvedFieldEntry(_cpool_index);
58 }
59 
60 void ResolvedFieldEntry::mark_and_relocate() {
61   ArchiveBuilder::current()->mark_and_relocate_to_buffered_addr(&_field_holder);
62 }
63 #endif

 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 #include "cds/archiveBuilder.hpp"
26 #include "cppstdlib/type_traits.hpp"
27 #include "interpreter/bytecodes.hpp"
28 #include "oops/instanceOop.hpp"
29 #include "oops/resolvedFieldEntry.hpp"
30 #include "utilities/globalDefinitions.hpp"
31 
32 static_assert(std::is_trivially_copyable_v<ResolvedFieldEntry>);
33 
34 // Detect inadvertently introduced trailing padding.
35 class ResolvedFieldEntryWithExtra : public ResolvedFieldEntry {
36   u1 _extra_field;
37 };
38 static_assert(sizeof(ResolvedFieldEntryWithExtra) > sizeof(ResolvedFieldEntry));
39 
40 void ResolvedFieldEntry::print_on(outputStream* st) const {
41   st->print_cr("Field Entry:");
42 
43   if (field_holder() != nullptr) {
44     st->print_cr(" - Holder: " INTPTR_FORMAT " %s", p2i(field_holder()), field_holder()->external_name());
45   } else {
46     st->print_cr("- Holder: null");
47   }
48   st->print_cr(" - Offset: %d", field_offset());
49   st->print_cr(" - Field Index: %d", field_index());
50   st->print_cr(" - CP Index: %d", constant_pool_index());
51   st->print_cr(" - TOS: %s", type2name(as_BasicType((TosState)tos_state())));
52   st->print_cr(" - Is Final: %d", is_final());
53   st->print_cr(" - Is Volatile: %d", is_volatile());
54   st->print_cr(" - Is Flat: %d", is_flat());
55   st->print_cr(" - Is Null Free Inline Type: %d", is_null_free_inline_type());
56   st->print_cr(" - Has null marker: %d", has_null_marker());
57   st->print_cr(" - Get Bytecode: %s", Bytecodes::name((Bytecodes::Code)get_code()));
58   st->print_cr(" - Put Bytecode: %s", Bytecodes::name((Bytecodes::Code)put_code()));
59 }
60 
61 bool ResolvedFieldEntry::is_valid() const {
62   return field_holder()->is_instance_klass() &&
63     field_offset() >= instanceOopDesc::base_offset_in_bytes() && field_offset() < 0x7fffffff &&
64     as_BasicType((TosState)tos_state()) != T_ILLEGAL &&
65     _flags < (1 << (max_flag_shift + 1)) &&
66     (get_code() == 0 || get_code() == Bytecodes::_getstatic || get_code() == Bytecodes::_getfield) &&
67     (put_code() == 0 || put_code() == Bytecodes::_putstatic || put_code() == Bytecodes::_putfield);
68 }
69 
70 #if INCLUDE_CDS
71 void ResolvedFieldEntry::remove_unshareable_info() {
72   *this = ResolvedFieldEntry(_cpool_index);
73 }
74 
75 void ResolvedFieldEntry::mark_and_relocate() {
76   ArchiveBuilder::current()->mark_and_relocate_to_buffered_addr(&_field_holder);
77 }
78 #endif