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 // This file holds the platform specific parts of the StubRoutines 26 // definition. See stubRoutines.hpp for a description on how to 27 // extend it. 28 29 enum platform_dependent_constants { 30 code_size1 = 9000, // simply increase if too small (assembler will crash if too small) 31 code_size2 = 22000 // simply increase if too small (assembler will crash if too small) 32 }; 33 34 // MethodHandles adapters 35 enum method_handles_platform_dependent_constants { 36 method_handles_adapters_code_size = 10000 37 }; 38 39 class x86 { 40 friend class StubGenerator; 41 friend class VMStructs; 42 43 private: 44 // If we call compiled code directly from the call stub we will 45 // need to adjust the return back to the call stub to a specialized 46 // piece of code that can handle compiled results and cleaning the fpu 47 // stack. The variable holds that location. 48 static address _call_stub_compiled_return; 49 static address _verify_mxcsr_entry; 50 static address _verify_fpu_cntrl_wrd_entry; 51 static jint _mxcsr_std; 52 53 public: 54 static address verify_mxcsr_entry() { return _verify_mxcsr_entry; } 55 static address verify_fpu_cntrl_wrd_entry() { return _verify_fpu_cntrl_wrd_entry; } 56 57 static address get_call_stub_compiled_return() { return _call_stub_compiled_return; } 58 static void set_call_stub_compiled_return(address ret) { _call_stub_compiled_return = ret; } 59 }; 60 61 static bool returns_to_call_stub(address return_pc) { return (return_pc == _call_stub_return_address) || 62 return_pc == x86::get_call_stub_compiled_return(); } | 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 CPU_X86_VM_STUBROUTINES_X86_32_HPP 26 #define CPU_X86_VM_STUBROUTINES_X86_32_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 enum platform_dependent_constants { 33 code_size1 = 9000, // simply increase if too small (assembler will crash if too small) 34 code_size2 = 22000 // simply increase if too small (assembler will crash if too small) 35 }; 36 37 // MethodHandles adapters 38 enum method_handles_platform_dependent_constants { 39 method_handles_adapters_code_size = 10000 40 }; 41 42 class x86 { 43 friend class StubGenerator; 44 friend class VMStructs; 45 46 private: 47 // If we call compiled code directly from the call stub we will 48 // need to adjust the return back to the call stub to a specialized 49 // piece of code that can handle compiled results and cleaning the fpu 50 // stack. The variable holds that location. 51 static address _call_stub_compiled_return; 52 static address _verify_mxcsr_entry; 53 static address _verify_fpu_cntrl_wrd_entry; 54 static jint _mxcsr_std; 55 56 public: 57 static address verify_mxcsr_entry() { return _verify_mxcsr_entry; } 58 static address verify_fpu_cntrl_wrd_entry() { return _verify_fpu_cntrl_wrd_entry; } 59 60 static address get_call_stub_compiled_return() { return _call_stub_compiled_return; } 61 static void set_call_stub_compiled_return(address ret) { _call_stub_compiled_return = ret; } 62 }; 63 64 static bool returns_to_call_stub(address return_pc) { return (return_pc == _call_stub_return_address) || 65 return_pc == x86::get_call_stub_compiled_return(); } 66 67 #endif // CPU_X86_VM_STUBROUTINES_X86_32_HPP |