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comparison src/cpu/sparc/vm/sharedRuntime_sparc.cpp @ 14518:d8041d695d19

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Merged with jdk9/dev/hotspot changeset 3812c088b945
author twisti
date Tue, 11 Mar 2014 18:45:59 -0700
parents f6c04e69cf75 abec000618bf
children 4ca6dc0799b6
comparison
equal deleted inserted replaced
14141:f97c5ec83832 14518:d8041d695d19
1 /* 1 /*
2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
1111 } 1111 }
1112 1112
1113 1113
1114 int SharedRuntime::c_calling_convention(const BasicType *sig_bt, 1114 int SharedRuntime::c_calling_convention(const BasicType *sig_bt,
1115 VMRegPair *regs, 1115 VMRegPair *regs,
1116 VMRegPair *regs2,
1116 int total_args_passed) { 1117 int total_args_passed) {
1118 assert(regs2 == NULL, "not needed on sparc");
1117 1119
1118 // Return the number of VMReg stack_slots needed for the args. 1120 // Return the number of VMReg stack_slots needed for the args.
1119 // This value does not include an abi space (like register window 1121 // This value does not include an abi space (like register window
1120 // save area). 1122 // save area).
1121 1123
2114 // Now figure out where the args must be stored and how much stack space 2116 // Now figure out where the args must be stored and how much stack space
2115 // they require (neglecting out_preserve_stack_slots but space for storing 2117 // they require (neglecting out_preserve_stack_slots but space for storing
2116 // the 1st six register arguments). It's weird see int_stk_helper. 2118 // the 1st six register arguments). It's weird see int_stk_helper.
2117 // 2119 //
2118 int out_arg_slots; 2120 int out_arg_slots;
2119 out_arg_slots = c_calling_convention(out_sig_bt, out_regs, total_c_args); 2121 out_arg_slots = c_calling_convention(out_sig_bt, out_regs, NULL, total_c_args);
2120 2122
2121 if (is_critical_native) { 2123 if (is_critical_native) {
2122 // Critical natives may have to call out so they need a save area 2124 // Critical natives may have to call out so they need a save area
2123 // for register arguments. 2125 // for register arguments.
2124 int double_slots = 0; 2126 int double_slots = 0;
2861 // Now figure out where the args must be stored and how much stack space 2863 // Now figure out where the args must be stored and how much stack space
2862 // they require (neglecting out_preserve_stack_slots but space for storing 2864 // they require (neglecting out_preserve_stack_slots but space for storing
2863 // the 1st six register arguments). It's weird see int_stk_helper. 2865 // the 1st six register arguments). It's weird see int_stk_helper.
2864 // 2866 //
2865 int out_arg_slots; 2867 int out_arg_slots;
2866 out_arg_slots = c_calling_convention(out_sig_bt, out_regs, total_c_args); 2868 out_arg_slots = c_calling_convention(out_sig_bt, out_regs, NULL, total_c_args);
2867 2869
2868 // Calculate the total number of stack slots we will need. 2870 // Calculate the total number of stack slots we will need.
2869 2871
2870 // First count the abi requirement plus all of the outgoing args 2872 // First count the abi requirement plus all of the outgoing args
2871 int stack_slots = SharedRuntime::out_preserve_stack_slots() + out_arg_slots; 2873 int stack_slots = SharedRuntime::out_preserve_stack_slots() + out_arg_slots;