13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #include "precompiled.hpp"
  27 #include "asm/macroAssembler.inline.hpp"
  28 #include "memory/resourceArea.hpp"
  29 #include "nativeInst_ppc.hpp"
  30 #include "oops/compressedOops.inline.hpp"
  31 #include "oops/oop.hpp"
  32 #include "runtime/handles.hpp"
  33 #include "runtime/orderAccess.inline.hpp"
  34 #include "runtime/sharedRuntime.hpp"
  35 #include "runtime/stubRoutines.hpp"
  36 #include "utilities/ostream.hpp"
  37 #ifdef COMPILER1
  38 #include "c1/c1_Runtime1.hpp"
  39 #endif
  40 
  41 // We use an illtrap for marking a method as not_entrant or zombie iff !UseSIGTRAP
  42 // Work around a C++ compiler bug which changes 'this'
  43 bool NativeInstruction::is_sigill_zombie_not_entrant_at(address addr) {
  44   assert(!UseSIGTRAP, "precondition");
  45   if (*(int*)addr != 0 /*illtrap*/) return false;
  46   CodeBlob* cb = CodeCache::find_blob_unsafe(addr);
  47   if (cb == NULL || !cb->is_nmethod()) return false;
  48   nmethod *nm = (nmethod *)cb;
  49   // This method is not_entrant or zombie iff the illtrap instruction is
  50   // located at the verified entry point.
  51   return nm->verified_entry_point() == addr;
  52 }
  53 

  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #include "precompiled.hpp"
  27 #include "asm/macroAssembler.inline.hpp"
  28 #include "memory/resourceArea.hpp"
  29 #include "nativeInst_ppc.hpp"
  30 #include "oops/compressedOops.inline.hpp"
  31 #include "oops/oop.hpp"
  32 #include "runtime/handles.hpp"
  33 #include "runtime/orderAccess.hpp"
  34 #include "runtime/sharedRuntime.hpp"
  35 #include "runtime/stubRoutines.hpp"
  36 #include "utilities/ostream.hpp"
  37 #ifdef COMPILER1
  38 #include "c1/c1_Runtime1.hpp"
  39 #endif
  40 
  41 // We use an illtrap for marking a method as not_entrant or zombie iff !UseSIGTRAP
  42 // Work around a C++ compiler bug which changes 'this'
  43 bool NativeInstruction::is_sigill_zombie_not_entrant_at(address addr) {
  44   assert(!UseSIGTRAP, "precondition");
  45   if (*(int*)addr != 0 /*illtrap*/) return false;
  46   CodeBlob* cb = CodeCache::find_blob_unsafe(addr);
  47   if (cb == NULL || !cb->is_nmethod()) return false;
  48   nmethod *nm = (nmethod *)cb;
  49   // This method is not_entrant or zombie iff the illtrap instruction is
  50   // located at the verified entry point.
  51   return nm->verified_entry_point() == addr;
  52 }
  53