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src/os_cpu/aix_ppc/vm/thread_aix_ppc.hpp@c5e86c5cd22e (annotated)

src/os_cpu/aix_ppc/vm/thread_aix_ppc.hpp

Fri, 12 Dec 2014 08:48:56 +0100

author

goetz

date

Fri, 12 Dec 2014 08:48:56 +0100

changeset 7424

c5e86c5cd22e

parent 0

f90c822e73f8

permissions

-rw-r--r--

8066964: ppc64: argument and return type profiling, fix problem with popframe
Reviewed-by: roland, kvn

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* Copyright 2012, 2013 SAP AG. All rights reserved.
aoqi@0	4	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	5	*
aoqi@0	6	* This code is free software; you can redistribute it and/or modify it
aoqi@0	7	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	8	* published by the Free Software Foundation.
aoqi@0	9	*
aoqi@0	10	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	13	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	14	* accompanied this code).
aoqi@0	15	*
aoqi@0	16	* You should have received a copy of the GNU General Public License version
aoqi@0	17	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	18	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	19	*
aoqi@0	20	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	21	* or visit www.oracle.com if you need additional information or have any
aoqi@0	22	* questions.
aoqi@0	23	*
aoqi@0	24	*/
aoqi@0	25
goetz@7424	26	#ifndef OS_CPU_AIX_PPC_VM_THREAD_AIX_PPC_HPP
goetz@7424	27	#define OS_CPU_AIX_PPC_VM_THREAD_AIX_PPC_HPP
aoqi@0	28
aoqi@0	29	private:
aoqi@0	30	void pd_initialize() {
aoqi@0	31	_anchor.clear();
aoqi@0	32	_last_interpreter_fp = NULL;
aoqi@0	33	}
aoqi@0	34
aoqi@0	35	// The `last' frame is the youngest Java frame on the thread's stack.
aoqi@0	36	frame pd_last_frame() {
aoqi@0	37	assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
aoqi@0	38
aoqi@0	39	intptr_t* sp = last_Java_sp();
aoqi@0	40	address pc = _anchor.last_Java_pc();
aoqi@0	41
aoqi@0	42	// Last_Java_pc ist not set, if we come here from compiled code.
aoqi@0	43	if (pc == NULL)
aoqi@0	44	pc = (address) *(sp + 2);
aoqi@0	45
aoqi@0	46	return frame(sp, pc);
aoqi@0	47	}
aoqi@0	48
aoqi@0	49	public:
aoqi@0	50	void set_base_of_stack_pointer(intptr_t* base_sp) {}
aoqi@0	51	intptr_t* base_of_stack_pointer() { return NULL; }
aoqi@0	52	void record_base_of_stack_pointer() {}
aoqi@0	53
aoqi@0	54	// These routines are only used on cpu architectures that
aoqi@0	55	// have separate register stacks (Itanium).
aoqi@0	56	static bool register_stack_overflow() { return false; }
aoqi@0	57	static void enable_register_stack_guard() {}
aoqi@0	58	static void disable_register_stack_guard() {}
aoqi@0	59
aoqi@0	60	bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,
aoqi@0	61	bool isInJava);
aoqi@0	62
aoqi@0	63	// -Xprof support
aoqi@0	64	//
aoqi@0	65	// In order to find the last Java fp from an async profile
aoqi@0	66	// tick, we store the current interpreter fp in the thread.
aoqi@0	67	// This value is only valid while we are in the C++ interpreter
aoqi@0	68	// and profiling.
aoqi@0	69	protected:
aoqi@0	70	intptr_t *_last_interpreter_fp;
aoqi@0	71
aoqi@0	72	public:
aoqi@0	73	static ByteSize last_interpreter_fp_offset() {
aoqi@0	74	return byte_offset_of(JavaThread, _last_interpreter_fp);
aoqi@0	75	}
aoqi@0	76
aoqi@0	77	intptr_t* last_interpreter_fp() { return _last_interpreter_fp; }
aoqi@0	78
goetz@7424	79	#endif // OS_CPU_AIX_PPC_VM_THREAD_AIX_PPC_HPP