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src/os_cpu/windows_x86/vm/thread_windows_x86.cpp@9ffa0d7ed932 (annotated)

src/os_cpu/windows_x86/vm/thread_windows_x86.cpp

Mon, 26 Jun 2017 02:04:40 -0700

author

kevinw

date

Mon, 26 Jun 2017 02:04:40 -0700

changeset 8987

9ffa0d7ed932

parent 8877

f04097176542

child 9041

95a08233f46c

permissions

-rw-r--r--

8161598: Kitchensink fails: assert(nm->insts_contains(original_pc)) failed: original PC must be in nmethod/CompiledMethod
Reviewed-by: dlong

duke@435	1	/*
sla@5237	2	* Copyright (c) 2003, 2013, 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
stefank@2314	25	#include "precompiled.hpp"
stefank@2314	26	#include "runtime/frame.inline.hpp"
stefank@4299	27	#include "runtime/thread.inline.hpp"
duke@435	28
duke@435	29	// For Forte Analyzer AsyncGetCallTrace profiling support - thread is
duke@435	30	// currently interrupted by SIGPROF
duke@435	31	bool JavaThread::pd_get_top_frame_for_signal_handler(frame* fr_addr,
duke@435	32	void* ucontext, bool isInJava) {
duke@435	33
duke@435	34	assert(Thread::current() == this, "caller must be current thread");
sla@5237	35	return pd_get_top_frame(fr_addr, ucontext, isInJava);
sla@5237	36	}
sla@5237	37
sla@5237	38	bool JavaThread::pd_get_top_frame_for_profiling(frame* fr_addr, void* ucontext, bool isInJava) {
sla@5237	39	return pd_get_top_frame(fr_addr, ucontext, isInJava);
sla@5237	40	}
sla@5237	41
sla@5237	42	bool JavaThread::pd_get_top_frame(frame* fr_addr, void* ucontext, bool isInJava) {
sla@5237	43
duke@435	44	assert(this->is_Java_thread(), "must be JavaThread");
duke@435	45
duke@435	46	JavaThread* jt = (JavaThread *)this;
duke@435	47
duke@435	48	// If we have a last_Java_frame, then we should use it even if
duke@435	49	// isInJava == true. It should be more reliable than CONTEXT info.
kevinw@8877	50	if (jt->has_last_Java_frame() && jt->frame_anchor()->walkable()) {
duke@435	51	*fr_addr = jt->pd_last_frame();
duke@435	52	return true;
duke@435	53	}
duke@435	54
duke@435	55	// At this point, we don't have a last_Java_frame, so
duke@435	56	// we try to glean some information out of the CONTEXT
duke@435	57	// if we were running Java code when SIGPROF came in.
duke@435	58	if (isInJava) {
duke@435	59	CONTEXT* uc = (CONTEXT*)ucontext;
duke@435	60
duke@435	61	#ifdef AMD64
duke@435	62	intptr_t* ret_fp = (intptr_t*) uc->Rbp;
duke@435	63	intptr_t* ret_sp = (intptr_t*) uc->Rsp;
duke@435	64	ExtendedPC addr = ExtendedPC((address)uc->Rip);
duke@435	65	#else
duke@435	66	intptr_t* ret_fp = (intptr_t*) uc->Ebp;
duke@435	67	intptr_t* ret_sp = (intptr_t*) uc->Esp;
duke@435	68	ExtendedPC addr = ExtendedPC((address)uc->Eip);
duke@435	69	#endif // AMD64
duke@435	70	if (addr.pc() == NULL || ret_sp == NULL ) {
duke@435	71	// CONTEXT wasn't useful
duke@435	72	return false;
duke@435	73	}
duke@435	74
duke@435	75	frame ret_frame(ret_sp, ret_fp, addr.pc());
duke@435	76	if (!ret_frame.safe_for_sender(jt)) {
duke@435	77	#ifdef COMPILER2
duke@435	78	// C2 uses ebp as a general register see if NULL fp helps
duke@435	79	frame ret_frame2(ret_sp, NULL, addr.pc());
duke@435	80	if (!ret_frame2.safe_for_sender(jt)) {
duke@435	81	// nothing else to try if the frame isn't good
duke@435	82	return false;
duke@435	83	}
duke@435	84	ret_frame = ret_frame2;
duke@435	85	#else
duke@435	86	// nothing else to try if the frame isn't good
duke@435	87	return false;
duke@435	88	#endif /* COMPILER2 */
duke@435	89	}
duke@435	90	*fr_addr = ret_frame;
duke@435	91	return true;
duke@435	92	}
duke@435	93
duke@435	94	// nothing else to try
duke@435	95	return false;
duke@435	96	}
bobv@2036	97
bobv@2036	98	void JavaThread::cache_global_variables() { }