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comparison src/cpu/x86/vm/vm_version_x86.cpp @ 4961:0368109684cb

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7132070: Use a mach_port_t as the OSThread thread_id rather than pthread_t on BSD/OSX Summary: Change OSThread to use mach thread_t Reviewed-by: phh, dcubed
author sla
date Sun, 19 Feb 2012 13:11:39 +0100
parents 22cee0ee8927
children 33df1aeaebbf 8c92982cbbc4
comparison
equal deleted inserted replaced
4960:86ce3208eb18 4961:0368109684cb
1 /* 1 /*
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1997, 2012, 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.
63 63
64 VM_Version_StubGenerator(CodeBuffer *c) : StubCodeGenerator(c) {} 64 VM_Version_StubGenerator(CodeBuffer *c) : StubCodeGenerator(c) {}
65 65
66 address generate_getPsrInfo() { 66 address generate_getPsrInfo() {
67 // Flags to test CPU type. 67 // Flags to test CPU type.
68 const uint32_t EFL_AC = 0x40000; 68 const uint32_t HS_EFL_AC = 0x40000;
69 const uint32_t EFL_ID = 0x200000; 69 const uint32_t HS_EFL_ID = 0x200000;
70 // Values for when we don't have a CPUID instruction. 70 // Values for when we don't have a CPUID instruction.
71 const int CPU_FAMILY_SHIFT = 8; 71 const int CPU_FAMILY_SHIFT = 8;
72 const uint32_t CPU_FAMILY_386 = (3 << CPU_FAMILY_SHIFT); 72 const uint32_t CPU_FAMILY_386 = (3 << CPU_FAMILY_SHIFT);
73 const uint32_t CPU_FAMILY_486 = (4 << CPU_FAMILY_SHIFT); 73 const uint32_t CPU_FAMILY_486 = (4 << CPU_FAMILY_SHIFT);
74 74
98 __ push(rax); 98 __ push(rax);
99 __ mov(rcx, rax); 99 __ mov(rcx, rax);
100 // 100 //
101 // if we are unable to change the AC flag, we have a 386 101 // if we are unable to change the AC flag, we have a 386
102 // 102 //
103 __ xorl(rax, EFL_AC); 103 __ xorl(rax, HS_EFL_AC);
104 __ push(rax); 104 __ push(rax);
105 __ popf(); 105 __ popf();
106 __ pushf(); 106 __ pushf();
107 __ pop(rax); 107 __ pop(rax);
108 __ cmpptr(rax, rcx); 108 __ cmpptr(rax, rcx);
116 // If we are unable to change the ID flag, we have a 486 which does 116 // If we are unable to change the ID flag, we have a 486 which does
117 // not support the "cpuid" instruction. 117 // not support the "cpuid" instruction.
118 // 118 //
119 __ bind(detect_486); 119 __ bind(detect_486);
120 __ mov(rax, rcx); 120 __ mov(rax, rcx);
121 __ xorl(rax, EFL_ID); 121 __ xorl(rax, HS_EFL_ID);
122 __ push(rax); 122 __ push(rax);
123 __ popf(); 123 __ popf();
124 __ pushf(); 124 __ pushf();
125 __ pop(rax); 125 __ pop(rax);
126 __ cmpptr(rcx, rax); 126 __ cmpptr(rcx, rax);