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comparison: src/os_cpu/aix_ppc/vm/thread_aix_ppc.hpp
src/os_cpu/aix_ppc/vm/thread_aix_ppc.hpp
- changeset 6465
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- child 7424
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| 6464:b83f7d608548 | 6465:666e6ce3976c |
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| 1 /* | |
| 2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. | |
| 3 * Copyright 2012, 2013 SAP AG. All rights reserved. | |
| 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 5 * | |
| 6 * This code is free software; you can redistribute it and/or modify it | |
| 7 * under the terms of the GNU General Public License version 2 only, as | |
| 8 * published by the Free Software Foundation. | |
| 9 * | |
| 10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 * version 2 for more details (a copy is included in the LICENSE file that | |
| 14 * accompanied this code). | |
| 15 * | |
| 16 * You should have received a copy of the GNU General Public License version | |
| 17 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 19 * | |
| 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 21 * or visit www.oracle.com if you need additional information or have any | |
| 22 * questions. | |
| 23 * | |
| 24 */ | |
| 25 | |
| 26 #ifndef OS_CPU_AIX_OJDKPPC_VM_THREAD_AIX_PPC_HPP | |
| 27 #define OS_CPU_AIX_OJDKPPC_VM_THREAD_AIX_PPC_HPP | |
| 28 | |
| 29 private: | |
| 30 void pd_initialize() { | |
| 31 _anchor.clear(); | |
| 32 _last_interpreter_fp = NULL; | |
| 33 } | |
| 34 | |
| 35 // The `last' frame is the youngest Java frame on the thread's stack. | |
| 36 frame pd_last_frame() { | |
| 37 assert(has_last_Java_frame(), "must have last_Java_sp() when suspended"); | |
| 38 | |
| 39 intptr_t* sp = last_Java_sp(); | |
| 40 address pc = _anchor.last_Java_pc(); | |
| 41 | |
| 42 // Last_Java_pc ist not set, if we come here from compiled code. | |
| 43 if (pc == NULL) | |
| 44 pc = (address) *(sp + 2); | |
| 45 | |
| 46 return frame(sp, pc); | |
| 47 } | |
| 48 | |
| 49 public: | |
| 50 void set_base_of_stack_pointer(intptr_t* base_sp) {} | |
| 51 intptr_t* base_of_stack_pointer() { return NULL; } | |
| 52 void record_base_of_stack_pointer() {} | |
| 53 | |
| 54 // These routines are only used on cpu architectures that | |
| 55 // have separate register stacks (Itanium). | |
| 56 static bool register_stack_overflow() { return false; } | |
| 57 static void enable_register_stack_guard() {} | |
| 58 static void disable_register_stack_guard() {} | |
| 59 | |
| 60 bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext, | |
| 61 bool isInJava); | |
| 62 | |
| 63 // -Xprof support | |
| 64 // | |
| 65 // In order to find the last Java fp from an async profile | |
| 66 // tick, we store the current interpreter fp in the thread. | |
| 67 // This value is only valid while we are in the C++ interpreter | |
| 68 // and profiling. | |
| 69 protected: | |
| 70 intptr_t *_last_interpreter_fp; | |
| 71 | |
| 72 public: | |
| 73 static ByteSize last_interpreter_fp_offset() { | |
| 74 return byte_offset_of(JavaThread, _last_interpreter_fp); | |
| 75 } | |
| 76 | |
| 77 intptr_t* last_interpreter_fp() { return _last_interpreter_fp; } | |
| 78 | |
| 79 #endif // OS_CPU_AIX_OJDKPPC_VM_THREAD_AIX_PPC_HPP |
