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
|