Mercurial > hg > truffle
annotate src/os_cpu/windows_x86/vm/assembler_windows_x86.cpp @ 4558:3706975946e4
Make graph dumping a bit more robust when there is no method, enable debug in the startCompiler method, add context and scope for snippets installation
Made IGV display graphs even if some edges are problematic
When schedule failed don't use it
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Fri, 10 Feb 2012 02:22:23 +0100 |
| parents | f95d63e2154a |
| children | cd3d6a6b95d9 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 | |
| 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "asm/assembler.hpp" | |
| 27 #include "assembler_x86.inline.hpp" | |
| 28 #include "runtime/os.hpp" | |
| 29 #include "runtime/threadLocalStorage.hpp" | |
| 0 | 30 |
| 31 | |
| 32 void MacroAssembler::int3() { | |
| 33 emit_byte(0xCC); | |
| 34 } | |
| 35 | |
| 304 | 36 #ifndef _LP64 |
| 0 | 37 // The current scheme to accelerate access to the thread |
| 38 // pointer is to store the current thread in the os_exception_wrapper | |
| 39 // and reference the current thread from stubs and compiled code | |
| 40 // via the FS register. FS[0] contains a pointer to the structured | |
| 41 // exception block which is actually a stack address. The first time | |
| 42 // we call the os exception wrapper, we calculate and store the | |
| 43 // offset from this exception block and use that offset here. | |
| 44 // | |
| 45 // The last mechanism we used was problematic in that the | |
| 46 // the offset we had hard coded in the VM kept changing as Microsoft | |
| 47 // evolved the OS. | |
| 48 // | |
| 49 // Warning: This mechanism assumes that we only attempt to get the | |
| 50 // thread when we are nested below a call wrapper. | |
| 51 // | |
| 52 // movl reg, fs:[0] Get exeception pointer | |
| 53 // movl reg, [reg + thread_ptr_offset] Load thread | |
| 54 // | |
| 55 void MacroAssembler::get_thread(Register thread) { | |
| 56 // can't use ExternalAddress because it can't take NULL | |
| 57 AddressLiteral null(0, relocInfo::none); | |
| 58 | |
| 59 prefix(FS_segment); | |
| 60 movptr(thread, null); | |
| 61 assert(ThreadLocalStorage::get_thread_ptr_offset() != 0, | |
| 62 "Thread Pointer Offset has not been initialized"); | |
| 63 movl(thread, Address(thread, ThreadLocalStorage::get_thread_ptr_offset())); | |
| 64 } | |
| 304 | 65 #else |
| 66 // call (Thread*)TlsGetValue(thread_index()); | |
| 67 void MacroAssembler::get_thread(Register thread) { | |
| 68 if (thread != rax) { | |
| 69 push(rax); | |
| 70 } | |
| 71 push(rdi); | |
| 72 push(rsi); | |
| 73 push(rdx); | |
| 74 push(rcx); | |
| 75 push(r8); | |
| 76 push(r9); | |
| 77 push(r10); | |
| 78 // XXX | |
| 79 mov(r10, rsp); | |
| 80 andq(rsp, -16); | |
| 81 push(r10); | |
| 82 push(r11); | |
| 83 | |
| 84 movl(c_rarg0, ThreadLocalStorage::thread_index()); | |
| 85 call(RuntimeAddress((address)TlsGetValue)); | |
| 86 | |
| 87 pop(r11); | |
| 88 pop(rsp); | |
| 89 pop(r10); | |
| 90 pop(r9); | |
| 91 pop(r8); | |
| 92 pop(rcx); | |
| 93 pop(rdx); | |
| 94 pop(rsi); | |
| 95 pop(rdi); | |
| 96 if (thread != rax) { | |
| 97 mov(thread, rax); | |
| 98 pop(rax); | |
| 99 } | |
| 100 } | |
| 101 #endif |