1 /*
2 * Copyright (c) 1999, 2013, 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 *
145 }
146
147 frame os::current_frame() {
148 intptr_t* sp = StubRoutines::Sparc::flush_callers_register_windows_func()();
149 frame myframe(sp, frame::unpatchable,
150 CAST_FROM_FN_PTR(address, os::current_frame));
151 if (os::is_first_C_frame(&myframe)) {
152 // stack is not walkable
153 return frame(NULL, frame::unpatchable, NULL);
154 } else {
155 return os::get_sender_for_C_frame(&myframe);
156 }
157 }
158
159 address os::current_stack_pointer() {
160 register void *sp __asm__ ("sp");
161 return (address)sp;
162 }
163
164 static void current_stack_region(address* bottom, size_t* size) {
165 if (os::Linux::is_initial_thread()) {
166 // initial thread needs special handling because pthread_getattr_np()
167 // may return bogus value.
168 *bottom = os::Linux::initial_thread_stack_bottom();
169 *size = os::Linux::initial_thread_stack_size();
170 } else {
171 pthread_attr_t attr;
172
173 int rslt = pthread_getattr_np(pthread_self(), &attr);
174
175 // JVM needs to know exact stack location, abort if it fails
176 if (rslt != 0) {
177 if (rslt == ENOMEM) {
178 vm_exit_out_of_memory(0, OOM_MMAP_ERROR, "pthread_getattr_np");
179 } else {
180 fatal(err_msg("pthread_getattr_np failed with errno = %d", rslt));
181 }
182 }
183
184 if (pthread_attr_getstack(&attr, (void**)bottom, size) != 0) {
185 fatal("Can not locate current stack attributes!");
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1 /*
2 * Copyright (c) 1999, 2018, 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 *
145 }
146
147 frame os::current_frame() {
148 intptr_t* sp = StubRoutines::Sparc::flush_callers_register_windows_func()();
149 frame myframe(sp, frame::unpatchable,
150 CAST_FROM_FN_PTR(address, os::current_frame));
151 if (os::is_first_C_frame(&myframe)) {
152 // stack is not walkable
153 return frame(NULL, frame::unpatchable, NULL);
154 } else {
155 return os::get_sender_for_C_frame(&myframe);
156 }
157 }
158
159 address os::current_stack_pointer() {
160 register void *sp __asm__ ("sp");
161 return (address)sp;
162 }
163
164 static void current_stack_region(address* bottom, size_t* size) {
165 if (os::is_primordial_thread()) {
166 // initial thread needs special handling because pthread_getattr_np()
167 // may return bogus value.
168 *bottom = os::Linux::initial_thread_stack_bottom();
169 *size = os::Linux::initial_thread_stack_size();
170 } else {
171 pthread_attr_t attr;
172
173 int rslt = pthread_getattr_np(pthread_self(), &attr);
174
175 // JVM needs to know exact stack location, abort if it fails
176 if (rslt != 0) {
177 if (rslt == ENOMEM) {
178 vm_exit_out_of_memory(0, OOM_MMAP_ERROR, "pthread_getattr_np");
179 } else {
180 fatal(err_msg("pthread_getattr_np failed with errno = %d", rslt));
181 }
182 }
183
184 if (pthread_attr_getstack(&attr, (void**)bottom, size) != 0) {
185 fatal("Can not locate current stack attributes!");
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