1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
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   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
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  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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  24 
  25 #ifndef SHARE_VM_GC_SHARED_SPECIALIZED_OOP_CLOSURES_HPP
  26 #define SHARE_VM_GC_SHARED_SPECIALIZED_OOP_CLOSURES_HPP
  27 
  28 #include "utilities/macros.hpp"
  29 #if INCLUDE_CMSGC
  30 #include "gc/cms/cms_specialized_oop_closures.hpp"
  31 #endif
  32 #if INCLUDE_G1GC
  33 #include "gc/g1/g1_specialized_oop_closures.hpp"
  34 #endif
  35 #if INCLUDE_SERIALGC
  36 #include "gc/serial/serial_specialized_oop_closures.hpp"
  37 #endif
  38 #if INCLUDE_ZGC
  39 #include "gc/z/zOopClosures.specialized.hpp"
  40 #endif
  41 
  42 // The following OopClosure types get specialized versions of
  43 // "oop_oop_iterate" that invoke the closures' do_oop methods
  44 // non-virtually, using a mechanism defined in this file.  Extend these
  45 // macros in the obvious way to add specializations for new closures.
  46 
  47 // Forward declarations.
  48 class ExtendedOopClosure;
  49 class NoHeaderExtendedOopClosure;
  50 class OopsInGenClosure;
  51 
  52 // This macro applies an argument macro to all OopClosures for which we
  53 // want specialized bodies of "oop_oop_iterate".  The arguments to "f" are:
  54 //   "f(closureType, non_virtual)"
  55 // where "closureType" is the name of the particular subclass of ExtendedOopClosure,
  56 // and "non_virtual" will be the string "_nv" if the closure type should
  57 // have its "do_oop" method invoked non-virtually, or else the
  58 // string "_v".  ("ExtendedOopClosure" itself will be the only class in the latter
  59 // category.)
  60 
  61 // This is split into several because of a Visual C++ 6.0 compiler bug
  62 // where very long macros cause the compiler to crash
  63 
  64 #define SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_1(f)                 \
  65   f(NoHeaderExtendedOopClosure,_nv)                               \
  66   SERIALGC_ONLY(SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_S(f))        \
  67      CMSGC_ONLY(SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_P(f))
  68 
  69 #define SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_2(f)                 \
  70   SERIALGC_ONLY(SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_MS(f))       \
  71      CMSGC_ONLY(SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_CMS(f))      \
  72       G1GC_ONLY(SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_G1(f))       \
  73       G1GC_ONLY(SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_G1FULL(f))   \
  74        ZGC_ONLY(SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_Z(f))
  75 
  76 // We separate these out, because sometime the general one has
  77 // a different definition from the specialized ones, and sometimes it
  78 // doesn't.
  79 
  80 #define ALL_OOP_OOP_ITERATE_CLOSURES_1(f)                         \
  81   f(ExtendedOopClosure,_v)                                        \
  82   SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_1(f)
  83 
  84 #define ALL_OOP_OOP_ITERATE_CLOSURES_2(f)                         \
  85   SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_2(f)
  86 
  87 #endif // SHARE_VM_GC_SHARED_SPECIALIZED_OOP_CLOSURES_HPP