• file
• revisions
• annotate
• diff
• comparison
• raw

src/os_cpu/solaris_sparc/vm/thread_solaris_sparc.hpp@1e9a9d2e6509 (annotated)

src/os_cpu/solaris_sparc/vm/thread_solaris_sparc.hpp

Thu, 21 Oct 2010 11:55:10 -0700

author

never

date

Thu, 21 Oct 2010 11:55:10 -0700

changeset 2262

1e9a9d2e6509

parent 1907

c18cbe5936b8

child 2314

f95d63e2154a

permissions

-rw-r--r--

6970683: improvements to hs_err output
Reviewed-by: kvn, jrose, dholmes, coleenp

duke@435	1	/*
trims@1907	2	* Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24	private:
duke@435	25
duke@435	26	void pd_initialize() {
duke@435	27	_anchor.clear();
duke@435	28	_base_of_stack_pointer = NULL;
duke@435	29	}
duke@435	30
duke@435	31	frame pd_last_frame() {
duke@435	32	assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
duke@435	33	assert(_anchor.walkable(), "thread has not dumped its register windows yet");
duke@435	34
duke@435	35	assert(_anchor.last_Java_pc() != NULL, "Ack no pc!");
duke@435	36	return frame(last_Java_sp(), frame::unpatchable, _anchor.last_Java_pc());
duke@435	37	}
duke@435	38
duke@435	39	// Sometimes the trap handler needs to record both PC and NPC.
duke@435	40	// This is a SPARC-specific companion to Thread::set_saved_exception_pc.
duke@435	41	address _saved_exception_npc;
duke@435	42
duke@435	43	// In polling_page_safepoint_handler_blob(s) we have to tail call other
duke@435	44	// blobs without blowing any registers. A tail call requires some
duke@435	45	// register to jump with and we can't blow any registers, so it must
duke@435	46	// be restored in the delay slot. 'restore' cannot be used as it
duke@435	47	// will chop the heads off of 64-bit %o registers in the 32-bit
duke@435	48	// build. Instead we reload the registers using G2_thread and this
duke@435	49	// location. Must be 64bits in the 32-bit LION build.
duke@435	50	jdouble _o_reg_temps[6];
duke@435	51
duke@435	52	// a stack pointer older than any java frame stack pointer. It is
duke@435	53	// used to validate stack pointers in frame::next_younger_sp (it
duke@435	54	// provides the upper bound in the range check). This is necessary
duke@435	55	// on Solaris/SPARC since the ucontext passed to a signal handler is
duke@435	56	// sometimes corrupt and we need a way to check the extracted sp.
duke@435	57	intptr_t* _base_of_stack_pointer;
duke@435	58
duke@435	59	public:
duke@435	60
duke@435	61	static int o_reg_temps_offset_in_bytes() { return offset_of(JavaThread, _o_reg_temps); }
duke@435	62
duke@435	63	#ifndef _LP64
duke@435	64	address o_reg_temps(int i) { return (address)&_o_reg_temps[i]; }
duke@435	65	#endif
duke@435	66
duke@435	67	static int saved_exception_npc_offset_in_bytes() { return offset_of(JavaThread,_saved_exception_npc); }
duke@435	68
duke@435	69	address saved_exception_npc() { return _saved_exception_npc; }
duke@435	70	void set_saved_exception_npc(address a) { _saved_exception_npc = a; }
duke@435	71
duke@435	72
duke@435	73	public:
duke@435	74
duke@435	75	intptr_t* base_of_stack_pointer() { return _base_of_stack_pointer; }
duke@435	76
duke@435	77	void set_base_of_stack_pointer(intptr_t* base_sp) {
duke@435	78	_base_of_stack_pointer = base_sp;
duke@435	79	}
duke@435	80
duke@435	81	void record_base_of_stack_pointer() {
duke@435	82	intptr_t *sp = (intptr_t *)(((intptr_t)StubRoutines::Sparc::flush_callers_register_windows_func()()));
duke@435	83	intptr_t *ysp;
duke@435	84	while((ysp = (intptr_t*)sp[FP->sp_offset_in_saved_window()]) != NULL) {
duke@435	85	sp = (intptr_t *)((intptr_t)ysp + STACK_BIAS);
duke@435	86	}
duke@435	87	_base_of_stack_pointer = sp;
duke@435	88	}
duke@435	89
duke@435	90	bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,
duke@435	91	bool isInJava);
duke@435	92
duke@435	93	// These routines are only used on cpu architectures that
duke@435	94	// have separate register stacks (Itanium).
duke@435	95	static bool register_stack_overflow() { return false; }
duke@435	96	static void enable_register_stack_guard() {}
duke@435	97	static void disable_register_stack_guard() {}