truffle: src/os_cpu/aix_ppc/vm/os_aix

annotate src/os_cpu/aix_ppc/vm/os_aix_ppc.cpp @ 17833:bfdf528be8e8

8038498: Fix includes and C inlining after 8035330 Summary: Change 8035330: Remove G1ParScanPartialArrayClosure and G1ParScanHeapEvacClosure broke the debug build on AIX. The method do_oop_partial_array() is added in a header, but requires the inline function par_write_ref() through several inlined calls. In some cpp files, like arguments.cpp, par_write_ref() is not defined as the corresponding inline header and is not included. The AIX debug VM does not start because of the missing symbol. This change solves this by cleaning up include dependencies. Reviewed-by: tschatzl, stefank

author	tschatzl
date	Fri, 04 Apr 2014 10:43:56 +0200
parents	71a71b0bc844
children	c5e86c5cd22e

rev	line source
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	1 /*
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
17807 71a71b0bc844 8037915: PPC64/AIX: Several smaller fixes goetz parents: 14445 diff changeset	3 * Copyright 2012, 2014 SAP AG. All rights reserved.
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	5 *
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	6 * This code is free software; you can redistribute it and/or modify it
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	7 * under the terms of the GNU General Public License version 2 only, as
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	8 * published by the Free Software Foundation.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	9 *
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	10 * This code is distributed in the hope that it will be useful, but WITHOUT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	13 * version 2 for more details (a copy is included in the LICENSE file that
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	14 * accompanied this code).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	15 *
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	16 * You should have received a copy of the GNU General Public License version
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	17 * 2 along with this work; if not, write to the Free Software Foundation,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	19 *
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	21 * or visit www.oracle.com if you need additional information or have any
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	22 * questions.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	23 *
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	24 */
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	25
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	26 // no precompiled headers
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	27 #include "assembler_ppc.inline.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	28 #include "classfile/classLoader.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	29 #include "classfile/systemDictionary.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	30 #include "classfile/vmSymbols.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	31 #include "code/icBuffer.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	32 #include "code/vtableStubs.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	33 #include "interpreter/interpreter.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	34 #include "jvm_aix.h"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	35 #include "memory/allocation.inline.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	36 #include "mutex_aix.inline.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	37 #include "nativeInst_ppc.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	38 #include "os_share_aix.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	39 #include "prims/jniFastGetField.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	40 #include "prims/jvm.h"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	41 #include "prims/jvm_misc.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	42 #include "runtime/arguments.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	43 #include "runtime/extendedPC.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	44 #include "runtime/frame.inline.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	45 #include "runtime/interfaceSupport.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	46 #include "runtime/java.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	47 #include "runtime/javaCalls.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	48 #include "runtime/mutexLocker.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	49 #include "runtime/osThread.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	50 #include "runtime/sharedRuntime.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	51 #include "runtime/stubRoutines.hpp"
17807 71a71b0bc844 8037915: PPC64/AIX: Several smaller fixes goetz parents: 14445 diff changeset	52 #include "runtime/thread.inline.hpp"
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	53 #include "runtime/timer.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	54 #include "utilities/events.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	55 #include "utilities/vmError.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	56 #ifdef COMPILER1
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	57 #include "c1/c1_Runtime1.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	58 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	59 #ifdef COMPILER2
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	60 #include "opto/runtime.hpp"
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	61 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	62
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	63 // put OS-includes here
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	64 # include <ucontext.h>
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	65
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	66 address os::current_stack_pointer() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	67 address csp;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	68
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	69 #if !defined(USE_XLC_BUILTINS)
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	70 // inline assembly for `mr regno(csp), R1_SP':
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	71 __asm__ __volatile__ ("mr %0, 1":"=r"(csp):);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	72 #else
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	73 csp = (address) __builtin_frame_address(0);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	74 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	75
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	76 return csp;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	77 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	78
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	79 char* os::non_memory_address_word() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	80 // Must never look like an address returned by reserve_memory,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	81 // even in its subfields (as defined by the CPU immediate fields,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	82 // if the CPU splits constants across multiple instructions).
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	83
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	84 return (char*) -1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	85 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	86
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	87 // OS specific thread initialization
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	88 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	89 // Calculate and store the limits of the memory stack.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	90 void os::initialize_thread(Thread *thread) { }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	91
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	92 // Frame information (pc, sp, fp) retrieved via ucontext
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	93 // always looks like a C-frame according to the frame
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	94 // conventions in frame_ppc64.hpp.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	95 address os::Aix::ucontext_get_pc(ucontext_t * uc) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	96 return (address)uc->uc_mcontext.jmp_context.iar;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	97 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	98
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	99 intptr_t* os::Aix::ucontext_get_sp(ucontext_t * uc) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	100 // gpr1 holds the stack pointer on aix
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	101 return (intptr_t)uc->uc_mcontext.jmp_context.gpr[1/REG_SP*/];
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	102 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	103
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	104 intptr_t* os::Aix::ucontext_get_fp(ucontext_t * uc) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	105 return NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	106 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	107
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	108 void os::Aix::ucontext_set_pc(ucontext_t* uc, address new_pc) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	109 uc->uc_mcontext.jmp_context.iar = (uint64_t) new_pc;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	110 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	111
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	112 ExtendedPC os::fetch_frame_from_context(void* ucVoid,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	113 intptr_t ret_sp, intptr_t ret_fp) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	114
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	115 ExtendedPC epc;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	116 ucontext_t* uc = (ucontext_t*)ucVoid;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	117
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	118 if (uc != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	119 epc = ExtendedPC(os::Aix::ucontext_get_pc(uc));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	120 if (ret_sp) *ret_sp = os::Aix::ucontext_get_sp(uc);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	121 if (ret_fp) *ret_fp = os::Aix::ucontext_get_fp(uc);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	122 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	123 // construct empty ExtendedPC for return value checking
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	124 epc = ExtendedPC(NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	125 if (ret_sp) ret_sp = (intptr_t )NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	126 if (ret_fp) ret_fp = (intptr_t )NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	127 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	128
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	129 return epc;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	130 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	131
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	132 frame os::fetch_frame_from_context(void* ucVoid) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	133 intptr_t* sp;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	134 intptr_t* fp;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	135 ExtendedPC epc = fetch_frame_from_context(ucVoid, &sp, &fp);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	136 // Avoid crash during crash if pc broken.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	137 if (epc.pc()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	138 frame fr(sp, epc.pc());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	139 return fr;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	140 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	141 frame fr(sp);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	142 return fr;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	143 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	144
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	145 frame os::get_sender_for_C_frame(frame* fr) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	146 if (*fr->sp() == NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	147 // fr is the last C frame
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	148 return frame(NULL, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	149 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	150 return frame(fr->sender_sp(), fr->sender_pc());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	151 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	152
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	153
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	154 frame os::current_frame() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	155 intptr_t* csp = (intptr_t) ((intptr_t*) os::current_stack_pointer());
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	156 // hack.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	157 frame topframe(csp, (address)0x8);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	158 // return sender of current topframe which hopefully has pc != NULL.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	159 return os::get_sender_for_C_frame(&topframe);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	160 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	161
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	162 // Utility functions
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	163
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	164 extern "C" JNIEXPORT int
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	165 JVM_handle_aix_signal(int sig, siginfo_t* info, void* ucVoid, int abort_if_unrecognized) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	166
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	167 ucontext_t* uc = (ucontext_t*) ucVoid;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	168
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	169 Thread* t = ThreadLocalStorage::get_thread_slow(); // slow & steady
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	170
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	171 SignalHandlerMark shm(t);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	172
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	173 // Note: it's not uncommon that JNI code uses signal/sigset to install
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	174 // then restore certain signal handler (e.g. to temporarily block SIGPIPE,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	175 // or have a SIGILL handler when detecting CPU type). When that happens,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	176 // JVM_handle_aix_signal() might be invoked with junk info/ucVoid. To
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	177 // avoid unnecessary crash when libjsig is not preloaded, try handle signals
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	178 // that do not require siginfo/ucontext first.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	179
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	180 if (sig == SIGPIPE) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	181 if (os::Aix::chained_handler(sig, info, ucVoid)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	182 return 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	183 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	184 if (PrintMiscellaneous && (WizardMode \|\| Verbose)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	185 warning("Ignoring SIGPIPE - see bug 4229104");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	186 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	187 return 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	188 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	189 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	190
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	191 JavaThread* thread = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	192 VMThread* vmthread = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	193 if (os::Aix::signal_handlers_are_installed) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	194 if (t != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	195 if(t->is_Java_thread()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	196 thread = (JavaThread*)t;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	197 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	198 else if(t->is_VM_thread()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	199 vmthread = (VMThread *)t;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	200 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	201 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	202 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	203
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	204 // Decide if this trap can be handled by a stub.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	205 address stub = NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	206
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	207 // retrieve program counter
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	208 address const pc = uc ? os::Aix::ucontext_get_pc(uc) : NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	209
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	210 // retrieve crash address
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	211 address const addr = info ? (const address) info->si_addr : NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	212
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	213 // SafeFetch 32 handling:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	214 // - make it work if _thread is null
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	215 // - make it use the standard os::...::ucontext_get/set_pc APIs
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	216 if (uc) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	217 address const pc = os::Aix::ucontext_get_pc(uc);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	218 if (pc && StubRoutines::is_safefetch_fault(pc)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	219 os::Aix::ucontext_set_pc(uc, StubRoutines::continuation_for_safefetch_fault(pc));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	220 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	221 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	222 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	223
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	224 // Handle SIGDANGER right away. AIX would raise SIGDANGER whenever available swap
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	225 // space falls below 30%. This is only a chance for the process to gracefully abort.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	226 // We can't hope to proceed after SIGDANGER since SIGKILL tailgates.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	227 if (sig == SIGDANGER) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	228 goto report_and_die;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	229 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	230
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	231 if (info == NULL \|\| uc == NULL \|\| thread == NULL && vmthread == NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	232 goto run_chained_handler;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	233 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	234
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	235 // If we are a java thread...
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	236 if (thread != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	237
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	238 // Handle ALL stack overflow variations here
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	239 if (sig == SIGSEGV && (addr < thread->stack_base() &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	240 addr >= thread->stack_base() - thread->stack_size())) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	241 // stack overflow
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	242 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	243 // If we are in a yellow zone and we are inside java, we disable the yellow zone and
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	244 // throw a stack overflow exception.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	245 // If we are in native code or VM C code, we report-and-die. The original coding tried
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	246 // to continue with yellow zone disabled, but that doesn't buy us much and prevents
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	247 // hs_err_pid files.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	248 if (thread->in_stack_yellow_zone(addr)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	249 thread->disable_stack_yellow_zone();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	250 if (thread->thread_state() == _thread_in_Java) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	251 // Throw a stack overflow exception.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	252 // Guard pages will be reenabled while unwinding the stack.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	253 stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	254 goto run_stub;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	255 } else {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	256 // Thread was in the vm or native code. Return and try to finish.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	257 return 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	258 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	259 } else if (thread->in_stack_red_zone(addr)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	260 // Fatal red zone violation. Disable the guard pages and fall through
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	261 // to handle_unexpected_exception way down below.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	262 thread->disable_stack_red_zone();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	263 tty->print_raw_cr("An irrecoverable stack overflow has occurred.");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	264 goto report_and_die;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	265 } else {
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	266 // This means a segv happened inside our stack, but not in
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	267 // the guarded zone. I'd like to know when this happens,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	268 tty->print_raw_cr("SIGSEGV happened inside stack but outside yellow and red zone.");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	269 goto report_and_die;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	270 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	271
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	272 } // end handle SIGSEGV inside stack boundaries
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	273
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	274 if (thread->thread_state() == _thread_in_Java) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	275 // Java thread running in Java code
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	276
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	277 // The following signals are used for communicating VM events:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	278 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	279 // SIGILL: the compiler generates illegal opcodes
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	280 // at places where it wishes to interrupt the VM:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	281 // Safepoints, Unreachable Code, Entry points of Zombie methods,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	282 // This results in a SIGILL with (*pc) == inserted illegal instruction.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	283 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	284 // (so, SIGILLs with a pc inside the zero page are real errors)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	285 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	286 // SIGTRAP:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	287 // The ppc trap instruction raises a SIGTRAP and is very efficient if it
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	288 // does not trap. It is used for conditional branches that are expected
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	289 // to be never taken. These are:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	290 // - zombie methods
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	291 // - IC (inline cache) misses.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	292 // - null checks leading to UncommonTraps.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	293 // - range checks leading to Uncommon Traps.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	294 // On Aix, these are especially null checks, as the ImplicitNullCheck
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	295 // optimization works only in rare cases, as the page at address 0 is only
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	296 // write protected. //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	297 // Note: !UseSIGTRAP is used to prevent SIGTRAPS altogether, to facilitate debugging.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	298 //
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	299 // SIGSEGV:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	300 // used for safe point polling:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	301 // To notify all threads that they have to reach a safe point, safe point polling is used:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	302 // All threads poll a certain mapped memory page. Normally, this page has read access.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	303 // If the VM wants to inform the threads about impending safe points, it puts this
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	304 // page to read only ("poisens" the page), and the threads then reach a safe point.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	305 // used for null checks:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	306 // If the compiler finds a store it uses it for a null check. Unfortunately this
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	307 // happens rarely. In heap based and disjoint base compressd oop modes also loads
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	308 // are used for null checks.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	309
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	310 // A VM-related SIGILL may only occur if we are not in the zero page.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	311 // On AIX, we get a SIGILL if we jump to 0x0 or to somewhere else
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	312 // in the zero page, because it is filled with 0x0. We ignore
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	313 // explicit SIGILLs in the zero page.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	314 if (sig == SIGILL && (pc < (address) 0x200)) {
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	315 if (TraceTraps) {
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	316 tty->print_raw_cr("SIGILL happened inside zero page.");
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	317 }
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	318 goto report_and_die;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	319 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	320
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	321 // Handle signal from NativeJump::patch_verified_entry().
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	322 if (( TrapBasedNotEntrantChecks && sig == SIGTRAP && nativeInstruction_at(pc)->is_sigtrap_zombie_not_entrant()) \|\|
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	323 (!TrapBasedNotEntrantChecks && sig == SIGILL && nativeInstruction_at(pc)->is_sigill_zombie_not_entrant())) {
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	324 if (TraceTraps) {
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	325 tty->print_cr("trap: zombie_not_entrant (%s)", (sig == SIGTRAP) ? "SIGTRAP" : "SIGILL");
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	326 }
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	327 stub = SharedRuntime::get_handle_wrong_method_stub();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	328 goto run_stub;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	329 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	330
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	331 else if (sig == SIGSEGV && os::is_poll_address(addr)) {
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	332 if (TraceTraps) {
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	333 tty->print_cr("trap: safepoint_poll at " INTPTR_FORMAT " (SIGSEGV)", pc);
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	334 }
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	335 stub = SharedRuntime::get_poll_stub(pc);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	336 goto run_stub;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	337 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	338
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	339 // SIGTRAP-based ic miss check in compiled code.
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	340 else if (sig == SIGTRAP && TrapBasedICMissChecks &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	341 nativeInstruction_at(pc)->is_sigtrap_ic_miss_check()) {
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	342 if (TraceTraps) {
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	343 tty->print_cr("trap: ic_miss_check at " INTPTR_FORMAT " (SIGTRAP)", pc);
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	344 }
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	345 stub = SharedRuntime::get_ic_miss_stub();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	346 goto run_stub;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	347 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	348
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	349 // SIGTRAP-based implicit null check in compiled code.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	350 else if (sig == SIGTRAP && TrapBasedNullChecks &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	351 nativeInstruction_at(pc)->is_sigtrap_null_check()) {
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	352 if (TraceTraps) {
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	353 tty->print_cr("trap: null_check at " INTPTR_FORMAT " (SIGTRAP)", pc);
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	354 }
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	355 stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	356 goto run_stub;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	357 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	358
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	359 // SIGSEGV-based implicit null check in compiled code.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	360 else if (sig == SIGSEGV && ImplicitNullChecks &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	361 CodeCache::contains((void*) pc) &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	362 !MacroAssembler::needs_explicit_null_check((intptr_t) info->si_addr)) {
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	363 if (TraceTraps) {
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	364 tty->print_cr("trap: null_check at " INTPTR_FORMAT " (SIGSEGV)", pc);
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	365 }
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	366 stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	367 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	368
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	369 #ifdef COMPILER2
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	370 // SIGTRAP-based implicit range check in compiled code.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	371 else if (sig == SIGTRAP && TrapBasedRangeChecks &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	372 nativeInstruction_at(pc)->is_sigtrap_range_check()) {
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	373 if (TraceTraps) {
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	374 tty->print_cr("trap: range_check at " INTPTR_FORMAT " (SIGTRAP)", pc);
14445 67fa91961822 8029940: PPC64 (part 122): C2 compiler port goetz parents: 14415 diff changeset	375 }
14415 666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	376 stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	377 goto run_stub;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	378 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	379 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	380
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	381 else if (sig == SIGFPE /* && info->si_code == FPE_INTDIV */) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	382 if (TraceTraps) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	383 tty->print_raw_cr("Fix SIGFPE handler, trying divide by zero handler.");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	384 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	385 stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_DIVIDE_BY_ZERO);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	386 goto run_stub;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	387 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	388
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	389 else if (sig == SIGBUS) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	390 // BugId 4454115: A read from a MappedByteBuffer can fault here if the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	391 // underlying file has been truncated. Do not crash the VM in such a case.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	392 CodeBlob* cb = CodeCache::find_blob_unsafe(pc);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	393 nmethod* nm = cb->is_nmethod() ? (nmethod*)cb : NULL;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	394 if (nm != NULL && nm->has_unsafe_access()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	395 // We don't really need a stub here! Just set the pending exeption and
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	396 // continue at the next instruction after the faulting read. Returning
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	397 // garbage from this read is ok.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	398 thread->set_pending_unsafe_access_error();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	399 uc->uc_mcontext.jmp_context.iar = ((unsigned long)pc) + 4;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	400 return 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	401 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	402 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	403 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	404
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	405 else { // thread->thread_state() != _thread_in_Java
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	406 // Detect CPU features. This is only done at the very start of the VM. Later, the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	407 // VM_Version::is_determine_features_test_running() flag should be false.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	408
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	409 if (sig == SIGILL && VM_Version::is_determine_features_test_running()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	410 // SIGILL must be caused by VM_Version::determine_features().
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	411 (int )pc = 0; // patch instruction to 0 to indicate that it causes a SIGILL,
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	412 // flushing of icache is not necessary.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	413 stub = pc + 4; // continue with next instruction.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	414 goto run_stub;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	415 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	416 else if (thread->thread_state() == _thread_in_vm &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	417 sig == SIGBUS && thread->doing_unsafe_access()) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	418 // We don't really need a stub here! Just set the pending exeption and
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	419 // continue at the next instruction after the faulting read. Returning
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	420 // garbage from this read is ok.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	421 thread->set_pending_unsafe_access_error();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	422 uc->uc_mcontext.jmp_context.iar = ((unsigned long)pc) + 4;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	423 return 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	424 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	425 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	426
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	427 // Check to see if we caught the safepoint code in the
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	428 // process of write protecting the memory serialization page.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	429 // It write enables the page immediately after protecting it
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	430 // so we can just return to retry the write.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	431 if ((sig == SIGSEGV) &&
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	432 os::is_memory_serialize_page(thread, addr)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	433 // Synchronization problem in the pseudo memory barrier code (bug id 6546278)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	434 // Block current thread until the memory serialize page permission restored.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	435 os::block_on_serialize_page_trap();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	436 return true;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	437 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	438 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	439
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	440 run_stub:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	441
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	442 // One of the above code blocks ininitalized the stub, so we want to
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	443 // delegate control to that stub.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	444 if (stub != NULL) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	445 // Save all thread context in case we need to restore it.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	446 if (thread != NULL) thread->set_saved_exception_pc(pc);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	447 uc->uc_mcontext.jmp_context.iar = (unsigned long)stub;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	448 return 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	449 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	450
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	451 run_chained_handler:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	452
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	453 // signal-chaining
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	454 if (os::Aix::chained_handler(sig, info, ucVoid)) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	455 return 1;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	456 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	457 if (!abort_if_unrecognized) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	458 // caller wants another chance, so give it to him
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	459 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	460 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	461
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	462 report_and_die:
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	463
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	464 // Use sigthreadmask instead of sigprocmask on AIX and unmask current signal.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	465 sigset_t newset;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	466 sigemptyset(&newset);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	467 sigaddset(&newset, sig);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	468 sigthreadmask(SIG_UNBLOCK, &newset, NULL);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	469
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	470 VMError err(t, sig, pc, info, ucVoid);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	471 err.report_and_die();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	472
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	473 ShouldNotReachHere();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	474 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	475 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	476
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	477 void os::Aix::init_thread_fpu_state(void) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	478 #if !defined(USE_XLC_BUILTINS)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	479 // Disable FP exceptions.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	480 __asm__ __volatile__ ("mtfsfi 6,0");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	481 #else
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	482 __mtfsfi(6, 0);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	483 #endif
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	484 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	485
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	486 ////////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	487 // thread stack
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	488
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	489 size_t os::Aix::min_stack_allowed = 768*K;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	490
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	491 // Aix is always in floating stack mode. The stack size for a new
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	492 // thread can be set via pthread_attr_setstacksize().
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	493 bool os::Aix::supports_variable_stack_size() { return true; }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	494
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	495 // return default stack size for thr_type
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	496 size_t os::Aix::default_stack_size(os::ThreadType thr_type) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	497 // default stack size (compiler thread needs larger stack)
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	498 // Notice that the setting for compiler threads here have no impact
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	499 // because of the strange 'fallback logic' in os::create_thread().
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	500 // Better set CompilerThreadStackSize in globals_<os_cpu>.hpp if you want to
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	501 // specify a different stack size for compiler threads!
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	502 size_t s = (thr_type == os::compiler_thread ? 4 * M : 1024 * K);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	503 return s;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	504 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	505
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	506 size_t os::Aix::default_guard_size(os::ThreadType thr_type) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	507 return 2 * page_size();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	508 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	509
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	510 /////////////////////////////////////////////////////////////////////////////
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	511 // helper functions for fatal error handler
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	512
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	513 void os::print_context(outputStream st, void context) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	514 if (context == NULL) return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	515
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	516 ucontext_t* uc = (ucontext_t*)context;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	517
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	518 st->print_cr("Registers:");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	519 st->print("pc =" INTPTR_FORMAT " ", uc->uc_mcontext.jmp_context.iar);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	520 st->print("lr =" INTPTR_FORMAT " ", uc->uc_mcontext.jmp_context.lr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	521 st->print("ctr=" INTPTR_FORMAT " ", uc->uc_mcontext.jmp_context.ctr);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	522 st->cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	523 for (int i = 0; i < 32; i++) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	524 st->print("r%-2d=" INTPTR_FORMAT " ", i, uc->uc_mcontext.jmp_context.gpr[i]);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	525 if (i % 3 == 2) st->cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	526 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	527 st->cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	528 st->cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	529
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	530 intptr_t sp = (intptr_t )os::Aix::ucontext_get_sp(uc);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	531 st->print_cr("Top of Stack: (sp=" PTR_FORMAT ")", sp);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	532 print_hex_dump(st, (address)sp, (address)(sp + 128), sizeof(intptr_t));
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	533 st->cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	534
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	535 // Note: it may be unsafe to inspect memory near pc. For example, pc may
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	536 // point to garbage if entry point in an nmethod is corrupted. Leave
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	537 // this at the end, and hope for the best.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	538 address pc = os::Aix::ucontext_get_pc(uc);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	539 st->print_cr("Instructions: (pc=" PTR_FORMAT ")", pc);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	540 print_hex_dump(st, pc - 64, pc + 64, /instrsize=/4);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	541 st->cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	542
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	543 // Try to decode the instructions.
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	544 st->print_cr("Decoded instructions: (pc=" PTR_FORMAT ")", pc);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	545 st->print("<TODO: PPC port - print_context>");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	546 // TODO: PPC port Disassembler::decode(pc, 16, 16, st);
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	547 st->cr();
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	548 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	549
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	550 void os::print_register_info(outputStream st, void context) {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	551 if (context == NULL) return;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	552 st->print("Not ported - print_register_info\n");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	553 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	554
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	555 extern "C" {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	556 int SpinPause() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	557 return 0;
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	558 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	559 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	560
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	561 #ifndef PRODUCT
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	562 void os::verify_stack_alignment() {
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	563 assert(((intptr_t)os::current_stack_pointer() & (StackAlignmentInBytes-1)) == 0, "incorrect stack alignment");
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	564 }
666e6ce3976c 8023038: PPC64 (part 15): Platform files for AIX/PPC64 support simonis parents: diff changeset	565 #endif

Mercurial > hg > truffle

annotate src/os_cpu/aix_ppc/vm/os_aix_ppc.cpp @ 17833:bfdf528be8e8