/* | |
* Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved. | |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
* | |
* This code is free software; you can redistribute it and/or modify it | |
* under the terms of the GNU General Public License version 2 only, as | |
* published by the Free Software Foundation. | |
* | |
* This code is distributed in the hope that it will be useful, but WITHOUT | |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
* version 2 for more details (a copy is included in the LICENSE file that | |
* accompanied this code). | |
* | |
* You should have received a copy of the GNU General Public License version | |
* 2 along with this work; if not, write to the Free Software Foundation, | |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
* | |
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
* CA 95054 USA or visit www.sun.com if you need additional information or | |
* have any questions. | |
* | |
*/ | |
private: | |
void pd_initialize() { _anchor.clear(); } | |
frame pd_last_frame() { | |
assert(has_last_Java_frame(), "must have last_Java_sp() when suspended"); | |
if (_anchor.last_Java_pc() != NULL) { | |
return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp(), _anchor.last_Java_pc()); | |
} else { | |
// This will pick up pc from sp | |
return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp()); | |
} | |
} | |
public: | |
// Mutators are highly dangerous.... | |
intptr_t* last_Java_fp() { return _anchor.last_Java_fp(); } | |
void set_last_Java_fp(intptr_t* fp) { _anchor.set_last_Java_fp(fp); } | |
void set_base_of_stack_pointer(intptr_t* base_sp) {} | |
static ByteSize last_Java_fp_offset() { | |
return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_fp_offset(); | |
} | |
intptr_t* base_of_stack_pointer() { return NULL; } | |
void record_base_of_stack_pointer() {} | |
bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext, | |
bool isInJava); | |
// These routines are only used on cpu architectures that | |
// have separate register stacks (Itanium). | |
static bool register_stack_overflow() { return false; } | |
static void enable_register_stack_guard() {} | |
static void disable_register_stack_guard() {} |