1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/os_cpu/linux_x86/vm/thread_linux_x86.hpp Sat Dec 01 00:00:00 2007 +0000 1.3 @@ -0,0 +1,65 @@ 1.4 +/* 1.5 + * Copyright 2000-2007 Sun Microsystems, Inc. All Rights Reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. 1.11 + * 1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.15 + * version 2 for more details (a copy is included in the LICENSE file that 1.16 + * accompanied this code). 1.17 + * 1.18 + * You should have received a copy of the GNU General Public License version 1.19 + * 2 along with this work; if not, write to the Free Software Foundation, 1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.21 + * 1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or 1.24 + * have any questions. 1.25 + * 1.26 + */ 1.27 + 1.28 + private: 1.29 + void pd_initialize() { 1.30 + _anchor.clear(); 1.31 + } 1.32 + 1.33 + frame pd_last_frame() { 1.34 + assert(has_last_Java_frame(), "must have last_Java_sp() when suspended"); 1.35 + if (_anchor.last_Java_pc() != NULL) { 1.36 + return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp(), _anchor.last_Java_pc()); 1.37 + } else { 1.38 + // This will pick up pc from sp 1.39 + return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp()); 1.40 + } 1.41 + } 1.42 + 1.43 + public: 1.44 + // Mutators are highly dangerous.... 1.45 + intptr_t* last_Java_fp() { return _anchor.last_Java_fp(); } 1.46 + void set_last_Java_fp(intptr_t* fp) { _anchor.set_last_Java_fp(fp); } 1.47 + 1.48 + void set_base_of_stack_pointer(intptr_t* base_sp) { 1.49 + } 1.50 + 1.51 + static ByteSize last_Java_fp_offset() { 1.52 + return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_fp_offset(); 1.53 + } 1.54 + 1.55 + intptr_t* base_of_stack_pointer() { 1.56 + return NULL; 1.57 + } 1.58 + void record_base_of_stack_pointer() { 1.59 + } 1.60 + 1.61 + bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext, 1.62 + bool isInJava); 1.63 + 1.64 + // These routines are only used on cpu architectures that 1.65 + // have separate register stacks (Itanium). 1.66 + static bool register_stack_overflow() { return false; } 1.67 + static void enable_register_stack_guard() {} 1.68 + static void disable_register_stack_guard() {}