1 /*
   2  * Copyright (c) 1999, 2011, 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  *

 125     epc = ExtendedPC(NULL);
 126     if (ret_sp) {
 127       *ret_sp = (intptr_t*) NULL;
 128     }
 129     if (ret_fp) {
 130       *ret_fp = (intptr_t*) NULL;
 131     }
 132   }
 133 
 134   return epc;
 135 }
 136 
 137 frame os::fetch_frame_from_context(void* ucVoid) {
 138   intptr_t* sp;
 139   intptr_t* fp;
 140   ExtendedPC epc = fetch_frame_from_context(ucVoid, &sp, &fp);
 141   return frame(sp, fp, epc.pc());
 142 }
 143 
 144 frame os::get_sender_for_C_frame(frame* fr) {
 145   return frame(fr->sender_sp(), fr->link(), fr->sender_pc());
 146 }
 147 
 148 frame os::current_frame() {
 149   fprintf(stderr, "current_frame()");
 150 
 151   intptr_t* sp = StubRoutines::Sparc::flush_callers_register_windows_func()();
 152   frame myframe(sp, frame::unpatchable,
 153                 CAST_FROM_FN_PTR(address, os::current_frame));
 154   if (os::is_first_C_frame(&myframe)) {
 155     // stack is not walkable
 156     return frame(NULL, frame::unpatchable, NULL);
 157   } else {
 158     return os::get_sender_for_C_frame(&myframe);
 159   }
 160 }
 161 
 162 address os::current_stack_pointer() {
 163   register void *sp __asm__ ("sp");
 164   return (address)sp;
 165 }
 166 
 167 static void current_stack_region(address* bottom, size_t* size) {
 168   if (os::Linux::is_initial_thread()) {
 169     // initial thread needs special handling because pthread_getattr_np()
 170     // may return bogus value.

   1 /*
   2  * Copyright (c) 1999, 2014, 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  *

 125     epc = ExtendedPC(NULL);
 126     if (ret_sp) {
 127       *ret_sp = (intptr_t*) NULL;
 128     }
 129     if (ret_fp) {
 130       *ret_fp = (intptr_t*) NULL;
 131     }
 132   }
 133 
 134   return epc;
 135 }
 136 
 137 frame os::fetch_frame_from_context(void* ucVoid) {
 138   intptr_t* sp;
 139   intptr_t* fp;
 140   ExtendedPC epc = fetch_frame_from_context(ucVoid, &sp, &fp);
 141   return frame(sp, fp, epc.pc());
 142 }
 143 
 144 frame os::get_sender_for_C_frame(frame* fr) {
 145   return frame(fr->sender_sp(), frame::unpatchable, fr->sender_pc());
 146 }
 147 
 148 frame os::current_frame() {


 149   intptr_t* sp = StubRoutines::Sparc::flush_callers_register_windows_func()();
 150   frame myframe(sp, frame::unpatchable,
 151                 CAST_FROM_FN_PTR(address, os::current_frame));
 152   if (os::is_first_C_frame(&myframe)) {
 153     // stack is not walkable
 154     return frame(NULL, frame::unpatchable, NULL);
 155   } else {
 156     return os::get_sender_for_C_frame(&myframe);
 157   }
 158 }
 159 
 160 address os::current_stack_pointer() {
 161   register void *sp __asm__ ("sp");
 162   return (address)sp;
 163 }
 164 
 165 static void current_stack_region(address* bottom, size_t* size) {
 166   if (os::Linux::is_initial_thread()) {
 167     // initial thread needs special handling because pthread_getattr_np()
 168     // may return bogus value.