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src/hotspot/cpu/x86/stubRoutines_x86.hpp

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 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 CPU_X86_STUBROUTINES_X86_HPP
 26 #define CPU_X86_STUBROUTINES_X86_HPP
 27 
 28 // This file holds the platform specific parts of the StubRoutines
 29 // definition. See stubRoutines.hpp for a description on how to
 30 // extend it.
 31 
 32 static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; }
 33 
 34 enum platform_dependent_constants {
 35   code_size1 = 20000 LP64_ONLY(+10000),         // simply increase if too small (assembler will crash if too small)
 36   code_size2 = 35300 LP64_ONLY(+35000)          // simply increase if too small (assembler will crash if too small)
 37 };
 38 
 39 class x86 {
 40  friend class StubGenerator;
 41  friend class VMStructs;
 42 
 43 #ifdef _LP64
 44  private:
 45   static address _get_previous_sp_entry;
 46 
 47   static address _f2i_fixup;
 48   static address _f2l_fixup;
 49   static address _d2i_fixup;
 50   static address _d2l_fixup;
 51 
 52   static address _float_sign_mask;
 53   static address _float_sign_flip;
 54   static address _double_sign_mask;
 55   static address _double_sign_flip;
 56 

 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 CPU_X86_STUBROUTINES_X86_HPP
 26 #define CPU_X86_STUBROUTINES_X86_HPP
 27 
 28 // This file holds the platform specific parts of the StubRoutines
 29 // definition. See stubRoutines.hpp for a description on how to
 30 // extend it.
 31 
 32 static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; }
 33 
 34 enum platform_dependent_constants {
 35   code_size1 = 20000 LP64_ONLY(+10000),         // simply increase if too small (assembler will crash if too small)
 36   code_size2 = 35300 LP64_ONLY(+35000) WINDOWS_ONLY(+2048) // simply increase if too small (assembler will crash if too small)
 37 };
 38 
 39 class x86 {
 40  friend class StubGenerator;
 41  friend class VMStructs;
 42 
 43 #ifdef _LP64
 44  private:
 45   static address _get_previous_sp_entry;
 46 
 47   static address _f2i_fixup;
 48   static address _f2l_fixup;
 49   static address _d2i_fixup;
 50   static address _d2l_fixup;
 51 
 52   static address _float_sign_mask;
 53   static address _float_sign_flip;
 54   static address _double_sign_mask;
 55   static address _double_sign_flip;
 56 
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