jdk8-mips64-public/hotspot: src/os_cpu/solaris_sparc/vm/thread_solaris

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

     1 /*

     2  * Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    24 private:

    26   void pd_initialize() {

    27     _anchor.clear();

    28     _base_of_stack_pointer        = NULL;

    29   }

    31   frame pd_last_frame() {

    32     assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");

    33     assert(_anchor.walkable(), "thread has not dumped its register windows yet");

    35     assert(_anchor.last_Java_pc() != NULL, "Ack no pc!");

    36     return frame(last_Java_sp(), frame::unpatchable, _anchor.last_Java_pc());

    37   }

    39   // Sometimes the trap handler needs to record both PC and NPC.

    40   // This is a SPARC-specific companion to Thread::set_saved_exception_pc.

    41   address _saved_exception_npc;

    43   // In polling_page_safepoint_handler_blob(s) we have to tail call other

    44   // blobs without blowing any registers.  A tail call requires some

    45   // register to jump with and we can't blow any registers, so it must

    46   // be restored in the delay slot.  'restore' cannot be used as it

    47   // will chop the heads off of 64-bit %o registers in the 32-bit

    48   // build.  Instead we reload the registers using G2_thread and this

    49   // location.  Must be 64bits in the 32-bit LION build.

    50   jdouble _o_reg_temps[6];

    52   // a stack pointer older than any java frame stack pointer.  It is

    53   // used to validate stack pointers in frame::next_younger_sp (it

    54   // provides the upper bound in the range check).  This is necessary

    55   // on Solaris/SPARC since the ucontext passed to a signal handler is

    56   // sometimes corrupt and we need a way to check the extracted sp.

    57   intptr_t* _base_of_stack_pointer;

    59 public:

    61   static int o_reg_temps_offset_in_bytes() { return offset_of(JavaThread, _o_reg_temps); }

    63 #ifndef _LP64

    64   address o_reg_temps(int i) { return (address)&_o_reg_temps[i]; }

    65 #endif

    67   static int saved_exception_npc_offset_in_bytes() { return offset_of(JavaThread,_saved_exception_npc); }

    69   address  saved_exception_npc()             { return _saved_exception_npc; }

    70   void set_saved_exception_npc(address a)    { _saved_exception_npc = a; }

    73 public:

    75   intptr_t* base_of_stack_pointer() { return _base_of_stack_pointer; }

    77   void set_base_of_stack_pointer(intptr_t* base_sp) {

    78     _base_of_stack_pointer = base_sp;

    79   }

    81   void record_base_of_stack_pointer() {

    82     intptr_t *sp = (intptr_t *)(((intptr_t)StubRoutines::Sparc::flush_callers_register_windows_func()()));

    83     intptr_t *ysp;

    84     while((ysp = (intptr_t*)sp[FP->sp_offset_in_saved_window()]) != NULL) {

    85       sp = (intptr_t *)((intptr_t)ysp + STACK_BIAS);

    86     }

    87     _base_of_stack_pointer = sp;

    88   }

    90   bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,

    91     bool isInJava);

    93   // These routines are only used on cpu architectures that

    94   // have separate register stacks (Itanium).

    95   static bool register_stack_overflow() { return false; }

    96   static void enable_register_stack_guard() {}

    97   static void disable_register_stack_guard() {}

src/os_cpu/solaris_sparc/vm/thread_solaris_sparc.hpp@1e9a9d2e6509