Mon, 04 Nov 2013 21:59:54 +0100
8027445: SIGSEGV at TestFloatingDecimal.testAppendToDouble()I
Summary: String.equals() intrinsic shouldn't use integer length input in pointer arithmetic without an i2l.
Reviewed-by: kvn, twisti
1 /*
2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
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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,
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23 */
25 // Platform-specific definitions for method handles.
26 // These definitions are inlined into class MethodHandles.
28 // Adapters
29 enum /* platform_dependent_constants */ {
30 adapter_code_size = NOT_LP64(23000 DEBUG_ONLY(+ 40000)) LP64_ONLY(35000 DEBUG_ONLY(+ 50000))
31 };
33 // Additional helper methods for MethodHandles code generation:
34 public:
35 static void load_klass_from_Class(MacroAssembler* _masm, Register klass_reg, Register temp_reg, Register temp2_reg);
37 static void verify_klass(MacroAssembler* _masm,
38 Register obj_reg, SystemDictionary::WKID klass_id,
39 Register temp_reg, Register temp2_reg,
40 const char* error_message = "wrong klass") NOT_DEBUG_RETURN;
42 static void verify_method_handle(MacroAssembler* _masm, Register mh_reg,
43 Register temp_reg, Register temp2_reg) {
44 verify_klass(_masm, mh_reg, SystemDictionary::WK_KLASS_ENUM_NAME(java_lang_invoke_MethodHandle),
45 temp_reg, temp2_reg,
46 "reference is a MH");
47 }
49 static void verify_ref_kind(MacroAssembler* _masm, int ref_kind, Register member_reg, Register temp) NOT_DEBUG_RETURN;
51 // Similar to InterpreterMacroAssembler::jump_from_interpreted.
52 // Takes care of special dispatch from single stepping too.
53 static void jump_from_method_handle(MacroAssembler* _masm, Register method,
54 Register temp, Register temp2,
55 bool for_compiler_entry);
57 static void jump_to_lambda_form(MacroAssembler* _masm,
58 Register recv, Register method_temp,
59 Register temp2, Register temp3,
60 bool for_compiler_entry);