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 // CodeBlob - superclass for all entries in the CodeCache.
26 //
27 // Suptypes are:
28 // nmethod : Compiled Java methods (include method that calls to native code)
29 // RuntimeStub : Call to VM runtime methods
30 // DeoptimizationBlob : Used for deoptimizatation
31 // ExceptionBlob : Used for stack unrolling
32 // SafepointBlob : Used to handle illegal instruction exceptions
33 //
34 //
35 // Layout:
36 // - header
37 // - relocation
38 // - content space
39 // - instruction space
40 // - data space
41 class DeoptimizationBlob;
42
43 class CodeBlob VALUE_OBJ_CLASS_SPEC {
44
482 OopMapSet* oop_maps,
483 int frame_size
484 );
485
486 void* operator new(size_t s, unsigned size);
487
488 public:
489 // Creation
490 static SafepointBlob* create(
491 CodeBuffer* cb,
492 OopMapSet* oop_maps,
493 int frame_size
494 );
495
496 // GC for args
497 void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, OopClosure* f) { /* nothing to do */ }
498
499 // Typing
500 bool is_safepoint_stub() const { return true; }
501 };
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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_CODEBLOB_HPP
26 #define SHARE_VM_CODE_CODEBLOB_HPP
27
28 #include "asm/codeBuffer.hpp"
29 #include "compiler/oopMap.hpp"
30 #include "runtime/frame.hpp"
31 #include "runtime/handles.hpp"
32
33 // CodeBlob - superclass for all entries in the CodeCache.
34 //
35 // Suptypes are:
36 // nmethod : Compiled Java methods (include method that calls to native code)
37 // RuntimeStub : Call to VM runtime methods
38 // DeoptimizationBlob : Used for deoptimizatation
39 // ExceptionBlob : Used for stack unrolling
40 // SafepointBlob : Used to handle illegal instruction exceptions
41 //
42 //
43 // Layout:
44 // - header
45 // - relocation
46 // - content space
47 // - instruction space
48 // - data space
49 class DeoptimizationBlob;
50
51 class CodeBlob VALUE_OBJ_CLASS_SPEC {
52
490 OopMapSet* oop_maps,
491 int frame_size
492 );
493
494 void* operator new(size_t s, unsigned size);
495
496 public:
497 // Creation
498 static SafepointBlob* create(
499 CodeBuffer* cb,
500 OopMapSet* oop_maps,
501 int frame_size
502 );
503
504 // GC for args
505 void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, OopClosure* f) { /* nothing to do */ }
506
507 // Typing
508 bool is_safepoint_stub() const { return true; }
509 };
510
511 #endif // SHARE_VM_CODE_CODEBLOB_HPP
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