Bug Summary

File:jdk/src/hotspot/share/cds/cppVtables.cpp
Warning:line 83, column 3
Undefined or garbage value returned to caller

Annotated Source Code

Press '?' to see keyboard shortcuts

clang -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name cppVtables.cpp -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -mthread-model posix -fno-delete-null-pointer-checks -mframe-pointer=all -relaxed-aliasing -fmath-errno -fno-rounding-math -masm-verbose -mconstructor-aliases -munwind-tables -target-cpu x86-64 -dwarf-column-info -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/lib/llvm-10/lib/clang/10.0.0 -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/hotspot/variant-server/libjvm/objs/precompiled -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -D __STDC_CONSTANT_MACROS -D _GNU_SOURCE -D _REENTRANT -D LIBC=gnu -D LINUX -D VM_LITTLE_ENDIAN -D _LP64=1 -D ASSERT -D CHECK_UNHANDLED_OOPS -D TARGET_ARCH_x86 -D INCLUDE_SUFFIX_OS=_linux -D INCLUDE_SUFFIX_CPU=_x86 -D INCLUDE_SUFFIX_COMPILER=_gcc -D TARGET_COMPILER_gcc -D AMD64 -D HOTSPOT_LIB_ARCH="amd64" -D COMPILER1 -D COMPILER2 -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/hotspot/variant-server/gensrc/adfiles -I /home/daniel/Projects/java/jdk/src/hotspot/share -I /home/daniel/Projects/java/jdk/src/hotspot/os/linux -I /home/daniel/Projects/java/jdk/src/hotspot/os/posix -I /home/daniel/Projects/java/jdk/src/hotspot/cpu/x86 -I /home/daniel/Projects/java/jdk/src/hotspot/os_cpu/linux_x86 -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/hotspot/variant-server/gensrc -I /home/daniel/Projects/java/jdk/src/hotspot/share/precompiled -I /home/daniel/Projects/java/jdk/src/hotspot/share/include -I /home/daniel/Projects/java/jdk/src/hotspot/os/posix/include -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/support/modules_include/java.base -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/support/modules_include/java.base/linux -I /home/daniel/Projects/java/jdk/src/java.base/share/native/libjimage -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/hotspot/variant-server/gensrc/adfiles -I /home/daniel/Projects/java/jdk/src/hotspot/share -I /home/daniel/Projects/java/jdk/src/hotspot/os/linux -I /home/daniel/Projects/java/jdk/src/hotspot/os/posix -I /home/daniel/Projects/java/jdk/src/hotspot/cpu/x86 -I /home/daniel/Projects/java/jdk/src/hotspot/os_cpu/linux_x86 -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/hotspot/variant-server/gensrc -D _FORTIFY_SOURCE=2 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/x86_64-linux-gnu/c++/7.5.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/x86_64-linux-gnu/c++/7.5.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/backward -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-10/lib/clang/10.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O3 -Wno-format-zero-length -Wno-unused-parameter -Wno-unused -Wno-parentheses -Wno-comment -Wno-unknown-pragmas -Wno-address -Wno-delete-non-virtual-dtor -Wno-char-subscripts -Wno-array-bounds -Wno-int-in-bool-context -Wno-ignored-qualifiers -Wno-missing-field-initializers -Wno-implicit-fallthrough -Wno-empty-body -Wno-strict-overflow -Wno-sequence-point -Wno-maybe-uninitialized -Wno-misleading-indentation -Wno-cast-function-type -Wno-shift-negative-value -std=c++14 -fdeprecated-macro -fdebug-compilation-dir /home/daniel/Projects/java/jdk/make/hotspot -ferror-limit 19 -fmessage-length 0 -fvisibility hidden -stack-protector 1 -fno-rtti -fgnuc-version=4.2.1 -fobjc-runtime=gcc -fdiagnostics-show-option -vectorize-loops -vectorize-slp -analyzer-output=html -faddrsig -o /home/daniel/Projects/java/scan/2021-12-21-193737-8510-1 -x c++ /home/daniel/Projects/java/jdk/src/hotspot/share/cds/cppVtables.cpp
1/*
2 * Copyright (c) 2020, 2021, 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#include "precompiled.hpp"
26#include "cds/archiveUtils.hpp"
27#include "cds/archiveBuilder.hpp"
28#include "cds/cppVtables.hpp"
29#include "cds/metaspaceShared.hpp"
30#include "logging/log.hpp"
31#include "oops/instanceClassLoaderKlass.hpp"
32#include "oops/instanceMirrorKlass.hpp"
33#include "oops/instanceRefKlass.hpp"
34#include "oops/methodData.hpp"
35#include "oops/objArrayKlass.hpp"
36#include "oops/typeArrayKlass.hpp"
37#include "runtime/arguments.hpp"
38#include "utilities/globalDefinitions.hpp"
39
40// Objects of the Metadata types (such as Klass and ConstantPool) have C++ vtables.
41// (In GCC this is the field <Type>::_vptr, i.e., first word in the object.)
42//
43// Addresses of the vtables and the methods may be different across JVM runs,
44// if libjvm.so is dynamically loaded at a different base address.
45//
46// To ensure that the Metadata objects in the CDS archive always have the correct vtable:
47//
48// + at dump time: we redirect the _vptr to point to our own vtables inside
49// the CDS image
50// + at run time: we clone the actual contents of the vtables from libjvm.so
51// into our own tables.
52
53// Currently, the archive contains ONLY the following types of objects that have C++ vtables.
54#define CPP_VTABLE_TYPES_DO(f)f(ConstantPool) f(InstanceKlass) f(InstanceClassLoaderKlass) f
(InstanceMirrorKlass) f(InstanceRefKlass) f(Method) f(ObjArrayKlass
) f(TypeArrayKlass) \
55 f(ConstantPool) \
56 f(InstanceKlass) \
57 f(InstanceClassLoaderKlass) \
58 f(InstanceMirrorKlass) \
59 f(InstanceRefKlass) \
60 f(Method) \
61 f(ObjArrayKlass) \
62 f(TypeArrayKlass)
63
64class CppVtableInfo {
65 intptr_t _vtable_size;
66 intptr_t _cloned_vtable[1];
67public:
68 static int num_slots(int vtable_size) {
69 return 1 + vtable_size; // Need to add the space occupied by _vtable_size;
70 }
71 int vtable_size() { return int(uintx(_vtable_size)); }
72 void set_vtable_size(int n) { _vtable_size = intptr_t(n); }
73 intptr_t* cloned_vtable() { return &_cloned_vtable[0]; }
74 void zero() { memset(_cloned_vtable, 0, sizeof(intptr_t) * vtable_size()); }
75 // Returns the address of the next CppVtableInfo that can be placed immediately after this CppVtableInfo
76 static size_t byte_size(int vtable_size) {
77 CppVtableInfo i;
78 return pointer_delta(&i._cloned_vtable[vtable_size], &i, sizeof(u1));
79 }
80};
81
82static inline intptr_t* vtable_of(const Metadata* m) {
83 return *((intptr_t**)m);
3
←
Undefined or garbage value returned to caller
84}
85
86template <class T> class CppVtableCloner {
87 static int get_vtable_length(const char* name);
88
89public:
90 // Allocate a clone of the vtable of T from the shared metaspace;
91 // Initialize the contents of this clone.
92 static CppVtableInfo* allocate_and_initialize(const char* name);
93
94 // Copy the contents of the vtable of T into info->_cloned_vtable;
95 static void initialize(const char* name, CppVtableInfo* info);
96
97 static void init_orig_cpp_vtptr(int kind);
98};
99
100template <class T>
101CppVtableInfo* CppVtableCloner<T>::allocate_and_initialize(const char* name) {
102 int n = get_vtable_length(name);
1
Calling 'CppVtableCloner::get_vtable_length'
→
103 CppVtableInfo* info =
104 (CppVtableInfo*)ArchiveBuilder::current()->rw_region()->allocate(CppVtableInfo::byte_size(n));
105 info->set_vtable_size(n);
106 initialize(name, info);
107 return info;
108}
109
110template <class T>
111void CppVtableCloner<T>::initialize(const char* name, CppVtableInfo* info) {
112 T tmp; // Allocate temporary dummy metadata object to get to the original vtable.
113 int n = info->vtable_size();
114 intptr_t* srcvtable = vtable_of(&tmp);
115 intptr_t* dstvtable = info->cloned_vtable();
116
117 // We already checked (and, if necessary, adjusted n) when the vtables were allocated, so we are
118 // safe to do memcpy.
119 log_debug(cds, vtables)(!(LogImpl<(LogTag::_cds), (LogTag::_vtables), (LogTag::__NO_TAG
), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG)
>::is_level(LogLevel::Debug))) ? (void)0 : LogImpl<(LogTag
::_cds), (LogTag::_vtables), (LogTag::__NO_TAG), (LogTag::__NO_TAG
), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel
::Debug>("Copying %3d vtable entries for %s", n, name);
120 memcpy(dstvtable, srcvtable, sizeof(intptr_t) * n);
121}
122
123// To determine the size of the vtable for each type, we use the following
124// trick by declaring 2 subclasses:
125//
126// class CppVtableTesterA: public InstanceKlass {virtual int last_virtual_method() {return 1;} };
127// class CppVtableTesterB: public InstanceKlass {virtual void* last_virtual_method() {return NULL}; };
128//
129// CppVtableTesterA and CppVtableTesterB's vtables have the following properties:
130// - Their size (N+1) is exactly one more than the size of InstanceKlass's vtable (N)
131// - The first N entries have are exactly the same as in InstanceKlass's vtable.
132// - Their last entry is different.
133//
134// So to determine the value of N, we just walk CppVtableTesterA and CppVtableTesterB's tables
135// and find the first entry that's different.
136//
137// This works on all C++ compilers supported by Oracle, but you may need to tweak it for more
138// esoteric compilers.
139
140template <class T> class CppVtableTesterB: public T {
141public:
142 virtual int last_virtual_method() {return 1;}
143};
144
145template <class T> class CppVtableTesterA : public T {
146public:
147 virtual void* last_virtual_method() {
148 // Make this different than CppVtableTesterB::last_virtual_method so the C++
149 // compiler/linker won't alias the two functions.
150 return NULL__null;
151 }
152};
153
154template <class T>
155int CppVtableCloner<T>::get_vtable_length(const char* name) {
156 CppVtableTesterA<T> a;
157 CppVtableTesterB<T> b;
158
159 intptr_t* avtable = vtable_of(&a);
2
←
Calling 'vtable_of'
→
160 intptr_t* bvtable = vtable_of(&b);
161
162 // Start at slot 1, because slot 0 may be RTTI (on Solaris/Sparc)
163 int vtable_len = 1;
164 for (; ; vtable_len++) {
165 if (avtable[vtable_len] != bvtable[vtable_len]) {
166 break;
167 }
168 }
169 log_debug(cds, vtables)(!(LogImpl<(LogTag::_cds), (LogTag::_vtables), (LogTag::__NO_TAG
), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG)
>::is_level(LogLevel::Debug))) ? (void)0 : LogImpl<(LogTag
::_cds), (LogTag::_vtables), (LogTag::__NO_TAG), (LogTag::__NO_TAG
), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel
::Debug>("Found %3d vtable entries for %s", vtable_len, name);
170
171 return vtable_len;
172}
173
174#define ALLOCATE_AND_INITIALIZE_VTABLE(c)_index[c_Kind] = CppVtableCloner<c>::allocate_and_initialize
("c"); ArchivePtrMarker::mark_pointer(&_index[c_Kind]); \
175 _index[c##_Kind] = CppVtableCloner<c>::allocate_and_initialize(#c); \
176 ArchivePtrMarker::mark_pointer(&_index[c##_Kind]);
177
178#define INITIALIZE_VTABLE(c)CppVtableCloner<c>::initialize("c", _index[c_Kind]); \
179 CppVtableCloner<c>::initialize(#c, _index[c##_Kind]);
180
181#define INIT_ORIG_CPP_VTPTRS(c)CppVtableCloner<c>::init_orig_cpp_vtptr(c_Kind); \
182 CppVtableCloner<c>::init_orig_cpp_vtptr(c##_Kind);
183
184#define DECLARE_CLONED_VTABLE_KIND(c)c_Kind, c ## _Kind,
185
186enum ClonedVtableKind {
187 // E.g., ConstantPool_Kind == 0, InstanceKlass_Kind == 1, etc.
188 CPP_VTABLE_TYPES_DO(DECLARE_CLONED_VTABLE_KIND)ConstantPool_Kind, InstanceKlass_Kind, InstanceClassLoaderKlass_Kind
, InstanceMirrorKlass_Kind, InstanceRefKlass_Kind, Method_Kind
, ObjArrayKlass_Kind, TypeArrayKlass_Kind,
189 _num_cloned_vtable_kinds
190};
191
192// This is a map of all the original vtptrs. E.g., for
193// ConstantPool *cp = new (...) ConstantPool(...) ; // a dynamically allocated constant pool
194// the following holds true:
195// _orig_cpp_vtptrs[ConstantPool_Kind] == ((intptr_t**)cp)[0]
196static intptr_t* _orig_cpp_vtptrs[_num_cloned_vtable_kinds];
197static bool _orig_cpp_vtptrs_inited = false;
198
199template <class T>
200void CppVtableCloner<T>::init_orig_cpp_vtptr(int kind) {
201 assert(kind < _num_cloned_vtable_kinds, "sanity")do { if (!(kind < _num_cloned_vtable_kinds)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/cds/cppVtables.cpp"
, 201, "assert(" "kind < _num_cloned_vtable_kinds" ") failed"
, "sanity"); ::breakpoint(); } } while (0);
202 T tmp; // Allocate temporary dummy metadata object to get to the original vtable.
203 intptr_t* srcvtable = vtable_of(&tmp);
204 _orig_cpp_vtptrs[kind] = srcvtable;
205}
206
207// This is the index of all the cloned vtables. E.g., for
208// ConstantPool* cp = ....; // an archived constant pool
209// InstanceKlass* ik = ....;// an archived class
210// the following holds true:
211// _index[ConstantPool_Kind]->cloned_vtable() == ((intptr_t**)cp)[0]
212// _index[InstanceKlass_Kind]->cloned_vtable() == ((intptr_t**)ik)[0]
213CppVtableInfo** CppVtables::_index = NULL__null;
214
215char* CppVtables::dumptime_init(ArchiveBuilder* builder) {
216 assert(DumpSharedSpaces, "must")do { if (!(DumpSharedSpaces)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/cds/cppVtables.cpp"
, 216, "assert(" "DumpSharedSpaces" ") failed", "must"); ::breakpoint
(); } } while (0);
217 size_t vtptrs_bytes = _num_cloned_vtable_kinds * sizeof(CppVtableInfo*);
218 _index = (CppVtableInfo**)builder->rw_region()->allocate(vtptrs_bytes);
219
220 CPP_VTABLE_TYPES_DO(ALLOCATE_AND_INITIALIZE_VTABLE)_index[ConstantPool_Kind] = CppVtableCloner<ConstantPool>
::allocate_and_initialize("ConstantPool"); ArchivePtrMarker::
mark_pointer(&_index[ConstantPool_Kind]); _index[InstanceKlass_Kind
] = CppVtableCloner<InstanceKlass>::allocate_and_initialize
("InstanceKlass"); ArchivePtrMarker::mark_pointer(&_index
[InstanceKlass_Kind]); _index[InstanceClassLoaderKlass_Kind] =
CppVtableCloner<InstanceClassLoaderKlass>::allocate_and_initialize
("InstanceClassLoaderKlass"); ArchivePtrMarker::mark_pointer(
&_index[InstanceClassLoaderKlass_Kind]); _index[InstanceMirrorKlass_Kind
] = CppVtableCloner<InstanceMirrorKlass>::allocate_and_initialize
("InstanceMirrorKlass"); ArchivePtrMarker::mark_pointer(&
_index[InstanceMirrorKlass_Kind]); _index[InstanceRefKlass_Kind
] = CppVtableCloner<InstanceRefKlass>::allocate_and_initialize
("InstanceRefKlass"); ArchivePtrMarker::mark_pointer(&_index
[InstanceRefKlass_Kind]); _index[Method_Kind] = CppVtableCloner
<Method>::allocate_and_initialize("Method"); ArchivePtrMarker
::mark_pointer(&_index[Method_Kind]); _index[ObjArrayKlass_Kind
] = CppVtableCloner<ObjArrayKlass>::allocate_and_initialize
("ObjArrayKlass"); ArchivePtrMarker::mark_pointer(&_index
[ObjArrayKlass_Kind]); _index[TypeArrayKlass_Kind] = CppVtableCloner
<TypeArrayKlass>::allocate_and_initialize("TypeArrayKlass"
); ArchivePtrMarker::mark_pointer(&_index[TypeArrayKlass_Kind
]);;
221
222 size_t cpp_tables_size = builder->rw_region()->top() - builder->rw_region()->base();
223 builder->alloc_stats()->record_cpp_vtables((int)cpp_tables_size);
224
225 return (char*)_index;
226}
227
228void CppVtables::serialize(SerializeClosure* soc) {
229 soc->do_ptr((void**)&_index);
230 if (soc->reading()) {
231 CPP_VTABLE_TYPES_DO(INITIALIZE_VTABLE)CppVtableCloner<ConstantPool>::initialize("ConstantPool"
, _index[ConstantPool_Kind]); CppVtableCloner<InstanceKlass
>::initialize("InstanceKlass", _index[InstanceKlass_Kind])
; CppVtableCloner<InstanceClassLoaderKlass>::initialize
("InstanceClassLoaderKlass", _index[InstanceClassLoaderKlass_Kind
]); CppVtableCloner<InstanceMirrorKlass>::initialize("InstanceMirrorKlass"
, _index[InstanceMirrorKlass_Kind]); CppVtableCloner<InstanceRefKlass
>::initialize("InstanceRefKlass", _index[InstanceRefKlass_Kind
]); CppVtableCloner<Method>::initialize("Method", _index
[Method_Kind]); CppVtableCloner<ObjArrayKlass>::initialize
("ObjArrayKlass", _index[ObjArrayKlass_Kind]); CppVtableCloner
<TypeArrayKlass>::initialize("TypeArrayKlass", _index[TypeArrayKlass_Kind
]);;
232 }
233}
234
235intptr_t* CppVtables::get_archived_vtable(MetaspaceObj::Type msotype, address obj) {
236 if (!_orig_cpp_vtptrs_inited) {
237 CPP_VTABLE_TYPES_DO(INIT_ORIG_CPP_VTPTRS)CppVtableCloner<ConstantPool>::init_orig_cpp_vtptr(ConstantPool_Kind
); CppVtableCloner<InstanceKlass>::init_orig_cpp_vtptr(
InstanceKlass_Kind); CppVtableCloner<InstanceClassLoaderKlass
>::init_orig_cpp_vtptr(InstanceClassLoaderKlass_Kind); CppVtableCloner
<InstanceMirrorKlass>::init_orig_cpp_vtptr(InstanceMirrorKlass_Kind
); CppVtableCloner<InstanceRefKlass>::init_orig_cpp_vtptr
(InstanceRefKlass_Kind); CppVtableCloner<Method>::init_orig_cpp_vtptr
(Method_Kind); CppVtableCloner<ObjArrayKlass>::init_orig_cpp_vtptr
(ObjArrayKlass_Kind); CppVtableCloner<TypeArrayKlass>::
init_orig_cpp_vtptr(TypeArrayKlass_Kind);;
238 _orig_cpp_vtptrs_inited = true;
239 }
240
241 Arguments::assert_is_dumping_archive();
242 int kind = -1;
243 switch (msotype) {
244 case MetaspaceObj::SymbolType:
245 case MetaspaceObj::TypeArrayU1Type:
246 case MetaspaceObj::TypeArrayU2Type:
247 case MetaspaceObj::TypeArrayU4Type:
248 case MetaspaceObj::TypeArrayU8Type:
249 case MetaspaceObj::TypeArrayOtherType:
250 case MetaspaceObj::ConstMethodType:
251 case MetaspaceObj::ConstantPoolCacheType:
252 case MetaspaceObj::AnnotationsType:
253 case MetaspaceObj::MethodCountersType:
254 case MetaspaceObj::RecordComponentType:
255 // These have no vtables.
256 break;
257 case MetaspaceObj::MethodDataType:
258 // We don't archive MethodData <-- should have been removed in removed_unsharable_info
259 ShouldNotReachHere()do { (*g_assert_poison) = 'X';; report_should_not_reach_here(
"/home/daniel/Projects/java/jdk/src/hotspot/share/cds/cppVtables.cpp"
, 259); ::breakpoint(); } while (0);
260 break;
261 default:
262 for (kind = 0; kind < _num_cloned_vtable_kinds; kind ++) {
263 if (vtable_of((Metadata*)obj) == _orig_cpp_vtptrs[kind]) {
264 break;
265 }
266 }
267 if (kind >= _num_cloned_vtable_kinds) {
268 fatal("Cannot find C++ vtable for " INTPTR_FORMAT " -- you probably added"do { (*g_assert_poison) = 'X';; report_fatal(INTERNAL_ERROR, "/home/daniel/Projects/java/jdk/src/hotspot/share/cds/cppVtables.cpp"
, 270, "Cannot find C++ vtable for " "0x%016" "l" "x" " -- you probably added"
" a new subtype of Klass or MetaData without updating CPP_VTABLE_TYPES_DO"
, p2i(obj)); ::breakpoint(); } while (0)
269 " a new subtype of Klass or MetaData without updating CPP_VTABLE_TYPES_DO",do { (*g_assert_poison) = 'X';; report_fatal(INTERNAL_ERROR, "/home/daniel/Projects/java/jdk/src/hotspot/share/cds/cppVtables.cpp"
, 270, "Cannot find C++ vtable for " "0x%016" "l" "x" " -- you probably added"
" a new subtype of Klass or MetaData without updating CPP_VTABLE_TYPES_DO"
, p2i(obj)); ::breakpoint(); } while (0)
270 p2i(obj))do { (*g_assert_poison) = 'X';; report_fatal(INTERNAL_ERROR, "/home/daniel/Projects/java/jdk/src/hotspot/share/cds/cppVtables.cpp"
, 270, "Cannot find C++ vtable for " "0x%016" "l" "x" " -- you probably added"
" a new subtype of Klass or MetaData without updating CPP_VTABLE_TYPES_DO"
, p2i(obj)); ::breakpoint(); } while (0);
271 }
272 }
273
274 if (kind >= 0) {
275 assert(kind < _num_cloned_vtable_kinds, "must be")do { if (!(kind < _num_cloned_vtable_kinds)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/cds/cppVtables.cpp"
, 275, "assert(" "kind < _num_cloned_vtable_kinds" ") failed"
, "must be"); ::breakpoint(); } } while (0);
276 return _index[kind]->cloned_vtable();
277 } else {
278 return NULL__null;
279 }
280}
281
282void CppVtables::zero_archived_vtables() {
283 assert(DumpSharedSpaces, "dump-time only")do { if (!(DumpSharedSpaces)) { (*g_assert_poison) = 'X';; report_vm_error
("/home/daniel/Projects/java/jdk/src/hotspot/share/cds/cppVtables.cpp"
, 283, "assert(" "DumpSharedSpaces" ") failed", "dump-time only"
); ::breakpoint(); } } while (0);
284 for (int kind = 0; kind < _num_cloned_vtable_kinds; kind ++) {
285 _index[kind]->zero();
286 }
287}
288
289bool CppVtables::is_valid_shared_method(const Method* m) {
290 assert(MetaspaceShared::is_in_shared_metaspace(m), "must be")do { if (!(MetaspaceShared::is_in_shared_metaspace(m))) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/cds/cppVtables.cpp"
, 290, "assert(" "MetaspaceShared::is_in_shared_metaspace(m)"
") failed", "must be"); ::breakpoint(); } } while (0);
291 return vtable_of(m) == _index[Method_Kind]->cloned_vtable();
292}