author | never |
Wed, 15 Feb 2012 10:12:55 -0800 | |
changeset 11788 | bef6166c683c |
parent 11636 | 3c07b54482a5 |
child 13393 | f0344cc50a90 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#include "precompiled.hpp" |
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#include "classfile/systemDictionary.hpp" |
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#include "code/codeCache.hpp" |
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#include "code/icBuffer.hpp" |
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#include "code/nmethod.hpp" |
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#include "code/vtableStubs.hpp" |
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#include "compiler/compileBroker.hpp" |
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#include "compiler/disassembler.hpp" |
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#include "gc_implementation/shared/markSweep.hpp" |
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#include "gc_interface/collectedHeap.hpp" |
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#include "interpreter/bytecodeHistogram.hpp" |
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#include "interpreter/interpreter.hpp" |
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#include "memory/resourceArea.hpp" |
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#include "memory/universe.hpp" |
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#include "oops/oop.inline.hpp" |
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#include "prims/privilegedStack.hpp" |
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#include "runtime/arguments.hpp" |
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#include "runtime/frame.hpp" |
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#include "runtime/java.hpp" |
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#include "runtime/sharedRuntime.hpp" |
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#include "runtime/stubCodeGenerator.hpp" |
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#include "runtime/stubRoutines.hpp" |
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#include "runtime/vframe.hpp" |
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#include "services/heapDumper.hpp" |
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#include "utilities/defaultStream.hpp" |
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#include "utilities/events.hpp" |
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#include "utilities/top.hpp" |
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#include "utilities/vmError.hpp" |
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#ifdef TARGET_OS_FAMILY_linux |
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# include "os_linux.inline.hpp" |
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# include "thread_linux.inline.hpp" |
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#endif |
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#ifdef TARGET_OS_FAMILY_solaris |
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# include "os_solaris.inline.hpp" |
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# include "thread_solaris.inline.hpp" |
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#endif |
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#ifdef TARGET_OS_FAMILY_windows |
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# include "os_windows.inline.hpp" |
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# include "thread_windows.inline.hpp" |
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#endif |
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#ifdef TARGET_OS_FAMILY_bsd |
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# include "os_bsd.inline.hpp" |
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# include "thread_bsd.inline.hpp" |
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#endif |
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#ifndef ASSERT |
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# ifdef _DEBUG |
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// NOTE: don't turn the lines below into a comment -- if you're getting |
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// a compile error here, change the settings to define ASSERT |
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ASSERT should be defined when _DEBUG is defined. It is not intended to be used for debugging |
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functions that do not slow down the system too much and thus can be left in optimized code. |
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On the other hand, the code should not be included in a production version. |
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# endif // _DEBUG |
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#endif // ASSERT |
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#ifdef _DEBUG |
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# ifndef ASSERT |
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configuration error: ASSERT must be defined in debug version |
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# endif // ASSERT |
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#endif // _DEBUG |
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#ifdef PRODUCT |
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# if -defined _DEBUG || -defined ASSERT |
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configuration error: ASSERT et al. must not be defined in PRODUCT version |
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# endif |
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#endif // PRODUCT |
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void warning(const char* format, ...) { |
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if (PrintWarnings) { |
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// In case error happens before init or during shutdown |
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if (tty == NULL) ostream_init(); |
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tty->print("%s warning: ", VM_Version::vm_name()); |
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va_list ap; |
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va_start(ap, format); |
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tty->vprint_cr(format, ap); |
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va_end(ap); |
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} |
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if (BreakAtWarning) BREAKPOINT; |
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} |
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||
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#ifndef PRODUCT |
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#define is_token_break(ch) (isspace(ch) || (ch) == ',') |
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static const char* last_file_name = NULL; |
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static int last_line_no = -1; |
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// assert/guarantee/... may happen very early during VM initialization. |
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// Don't rely on anything that is initialized by Threads::create_vm(). For |
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// example, don't use tty. |
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bool error_is_suppressed(const char* file_name, int line_no) { |
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// The following 1-element cache requires that passed-in |
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// file names are always only constant literals. |
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if (file_name == last_file_name && line_no == last_line_no) return true; |
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int file_name_len = (int)strlen(file_name); |
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char separator = os::file_separator()[0]; |
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const char* base_name = strrchr(file_name, separator); |
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if (base_name == NULL) |
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base_name = file_name; |
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// scan the SuppressErrorAt option |
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const char* cp = SuppressErrorAt; |
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for (;;) { |
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const char* sfile; |
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int sfile_len; |
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int sline; |
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bool noisy; |
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while ((*cp) != '\0' && is_token_break(*cp)) cp++; |
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if ((*cp) == '\0') break; |
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sfile = cp; |
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while ((*cp) != '\0' && !is_token_break(*cp) && (*cp) != ':') cp++; |
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sfile_len = cp - sfile; |
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if ((*cp) == ':') cp++; |
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sline = 0; |
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while ((*cp) != '\0' && isdigit(*cp)) { |
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sline *= 10; |
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sline += (*cp) - '0'; |
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cp++; |
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} |
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// "file:line!" means the assert suppression is not silent |
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noisy = ((*cp) == '!'); |
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while ((*cp) != '\0' && !is_token_break(*cp)) cp++; |
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// match the line |
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153 |
if (sline != 0) { |
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if (sline != line_no) continue; |
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} |
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// match the file |
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if (sfile_len > 0) { |
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const char* look = file_name; |
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const char* look_max = file_name + file_name_len - sfile_len; |
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const char* foundp; |
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bool match = false; |
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while (!match |
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&& (foundp = strchr(look, sfile[0])) != NULL |
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&& foundp <= look_max) { |
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match = true; |
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for (int i = 1; i < sfile_len; i++) { |
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if (sfile[i] != foundp[i]) { |
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match = false; |
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break; |
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} |
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} |
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look = foundp + 1; |
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} |
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if (!match) continue; |
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} |
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// got a match! |
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if (noisy) { |
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fdStream out(defaultStream::output_fd()); |
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out.print_raw("[error suppressed at "); |
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out.print_raw(base_name); |
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char buf[16]; |
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jio_snprintf(buf, sizeof(buf), ":%d]", line_no); |
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out.print_raw_cr(buf); |
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} else { |
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// update 1-element cache for fast silent matches |
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last_file_name = file_name; |
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last_line_no = line_no; |
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} |
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return true; |
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} |
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if (!is_error_reported()) { |
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// print a friendly hint: |
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fdStream out(defaultStream::output_fd()); |
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out.print_raw_cr("# To suppress the following error report, specify this argument"); |
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out.print_raw ("# after -XX: or in .hotspotrc: SuppressErrorAt="); |
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out.print_raw (base_name); |
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char buf[16]; |
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jio_snprintf(buf, sizeof(buf), ":%d", line_no); |
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out.print_raw_cr(buf); |
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} |
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return false; |
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} |
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204 |
||
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#undef is_token_break |
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206 |
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207 |
#else |
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208 |
||
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// Place-holder for non-existent suppression check: |
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#define error_is_suppressed(file_name, line_no) (false) |
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#endif // !PRODUCT |
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void report_vm_error(const char* file, int line, const char* error_msg, |
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const char* detail_msg) |
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{ |
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if (Debugging || error_is_suppressed(file, line)) return; |
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Thread* const thread = ThreadLocalStorage::get_thread_slow(); |
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VMError err(thread, file, line, error_msg, detail_msg); |
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err.report_and_die(); |
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} |
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void report_fatal(const char* file, int line, const char* message) |
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{ |
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report_vm_error(file, line, "fatal error", message); |
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} |
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||
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// Used by report_vm_out_of_memory to detect recursion. |
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static jint _exiting_out_of_mem = 0; |
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void report_vm_out_of_memory(const char* file, int line, size_t size, |
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const char* message) { |
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if (Debugging) return; |
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// We try to gather additional information for the first out of memory |
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236 |
// error only; gathering additional data might cause an allocation and a |
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// recursive out_of_memory condition. |
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238 |
||
239 |
const jint exiting = 1; |
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240 |
// If we succeed in changing the value, we're the first one in. |
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241 |
bool first_time_here = Atomic::xchg(exiting, &_exiting_out_of_mem) != exiting; |
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242 |
||
243 |
if (first_time_here) { |
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Thread* thread = ThreadLocalStorage::get_thread_slow(); |
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VMError(thread, file, line, size, message).report_and_die(); |
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} |
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// Dump core and abort |
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vm_abort(true); |
1 | 250 |
} |
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void report_should_not_call(const char* file, int line) { |
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253 |
report_vm_error(file, line, "ShouldNotCall()"); |
1 | 254 |
} |
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void report_should_not_reach_here(const char* file, int line) { |
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report_vm_error(file, line, "ShouldNotReachHere()"); |
1 | 258 |
} |
259 |
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void report_unimplemented(const char* file, int line) { |
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report_vm_error(file, line, "Unimplemented()"); |
1 | 262 |
} |
263 |
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void report_untested(const char* file, int line, const char* message) { |
1 | 265 |
#ifndef PRODUCT |
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warning("Untested: %s in %s: %d\n", message, file, line); |
10739 | 267 |
#endif // !PRODUCT |
1 | 268 |
} |
269 |
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void report_out_of_shared_space(SharedSpaceType shared_space) { |
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static const char* name[] = { |
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"permanent generation", |
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"shared read only space", |
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"shared read write space", |
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"shared miscellaneous data space" |
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}; |
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static const char* flag[] = { |
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"PermGen", |
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"SharedReadOnlySize", |
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"SharedReadWriteSize", |
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"SharedMiscDataSize" |
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}; |
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|
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warning("\nThe %s is not large enough\n" |
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"to preload requested classes. Use -XX:%s=\n" |
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"to increase the initial size of %s.\n", |
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name[shared_space], flag[shared_space], name[shared_space]); |
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exit(2); |
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} |
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|
1 | 291 |
void report_java_out_of_memory(const char* message) { |
292 |
static jint out_of_memory_reported = 0; |
|
293 |
||
294 |
// A number of threads may attempt to report OutOfMemoryError at around the |
|
295 |
// same time. To avoid dumping the heap or executing the data collection |
|
296 |
// commands multiple times we just do it once when the first threads reports |
|
297 |
// the error. |
|
298 |
if (Atomic::cmpxchg(1, &out_of_memory_reported, 0) == 0) { |
|
299 |
// create heap dump before OnOutOfMemoryError commands are executed |
|
300 |
if (HeapDumpOnOutOfMemoryError) { |
|
301 |
tty->print_cr("java.lang.OutOfMemoryError: %s", message); |
|
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|
302 |
HeapDumper::dump_heap_from_oome(); |
1 | 303 |
} |
304 |
||
305 |
if (OnOutOfMemoryError && OnOutOfMemoryError[0]) { |
|
306 |
VMError err(message); |
|
307 |
err.report_java_out_of_memory(); |
|
308 |
} |
|
309 |
} |
|
310 |
} |
|
311 |
||
312 |
static bool error_reported = false; |
|
313 |
||
314 |
// call this when the VM is dying--it might loosen some asserts |
|
315 |
void set_error_reported() { |
|
316 |
error_reported = true; |
|
317 |
} |
|
318 |
||
319 |
bool is_error_reported() { |
|
320 |
return error_reported; |
|
321 |
} |
|
322 |
||
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323 |
#ifndef PRODUCT |
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|
324 |
#include <signal.h> |
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|
325 |
|
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|
326 |
void test_error_handler(size_t test_num) |
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|
327 |
{ |
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|
328 |
if (test_num == 0) return; |
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|
329 |
|
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|
330 |
// If asserts are disabled, use the corresponding guarantee instead. |
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|
331 |
size_t n = test_num; |
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|
332 |
NOT_DEBUG(if (n <= 2) n += 2); |
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|
333 |
|
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|
334 |
const char* const str = "hello"; |
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|
335 |
const size_t num = (size_t)os::vm_page_size(); |
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|
336 |
|
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|
337 |
const char* const eol = os::line_separator(); |
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|
338 |
const char* const msg = "this message should be truncated during formatting"; |
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|
339 |
|
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|
340 |
// Keep this in sync with test/runtime/6888954/vmerrors.sh. |
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|
341 |
switch (n) { |
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|
342 |
case 1: assert(str == NULL, "expected null"); |
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|
343 |
case 2: assert(num == 1023 && *str == 'X', |
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|
344 |
err_msg("num=" SIZE_FORMAT " str=\"%s\"", num, str)); |
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|
345 |
case 3: guarantee(str == NULL, "expected null"); |
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|
346 |
case 4: guarantee(num == 1023 && *str == 'X', |
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|
347 |
err_msg("num=" SIZE_FORMAT " str=\"%s\"", num, str)); |
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|
348 |
case 5: fatal("expected null"); |
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|
349 |
case 6: fatal(err_msg("num=" SIZE_FORMAT " str=\"%s\"", num, str)); |
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|
350 |
case 7: fatal(err_msg("%s%s# %s%s# %s%s# %s%s# %s%s# " |
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|
351 |
"%s%s# %s%s# %s%s# %s%s# %s%s# " |
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|
352 |
"%s%s# %s%s# %s%s# %s%s# %s", |
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|
353 |
msg, eol, msg, eol, msg, eol, msg, eol, msg, eol, |
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|
354 |
msg, eol, msg, eol, msg, eol, msg, eol, msg, eol, |
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|
355 |
msg, eol, msg, eol, msg, eol, msg, eol, msg)); |
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|
356 |
case 8: vm_exit_out_of_memory(num, "ChunkPool::allocate"); |
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|
357 |
case 9: ShouldNotCallThis(); |
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|
358 |
case 10: ShouldNotReachHere(); |
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|
359 |
case 11: Unimplemented(); |
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|
360 |
// This is last because it does not generate an hs_err* file on Windows. |
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|
361 |
case 12: os::signal_raise(SIGSEGV); |
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|
362 |
|
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|
363 |
default: ShouldNotReachHere(); |
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|
364 |
} |
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|
365 |
} |
10739 | 366 |
#endif // !PRODUCT |
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|
367 |
|
1 | 368 |
// ------ helper functions for debugging go here ------------ |
369 |
||
370 |
// All debug entries should be wrapped with a stack allocated |
|
371 |
// Command object. It makes sure a resource mark is set and |
|
372 |
// flushes the logfile to prevent file sharing problems. |
|
373 |
||
374 |
class Command : public StackObj { |
|
375 |
private: |
|
376 |
ResourceMark rm; |
|
377 |
ResetNoHandleMark rnhm; |
|
378 |
HandleMark hm; |
|
379 |
bool debug_save; |
|
380 |
public: |
|
381 |
static int level; |
|
382 |
Command(const char* str) { |
|
383 |
debug_save = Debugging; |
|
384 |
Debugging = true; |
|
385 |
if (level++ > 0) return; |
|
386 |
tty->cr(); |
|
387 |
tty->print_cr("\"Executing %s\"", str); |
|
388 |
} |
|
389 |
||
10739 | 390 |
~Command() { |
391 |
tty->flush(); |
|
392 |
Debugging = debug_save; |
|
393 |
level--; |
|
394 |
} |
|
1 | 395 |
}; |
396 |
||
397 |
int Command::level = 0; |
|
398 |
||
10739 | 399 |
#ifndef PRODUCT |
400 |
||
1 | 401 |
extern "C" void blob(CodeBlob* cb) { |
402 |
Command c("blob"); |
|
403 |
cb->print(); |
|
404 |
} |
|
405 |
||
406 |
||
407 |
extern "C" void dump_vtable(address p) { |
|
408 |
Command c("dump_vtable"); |
|
409 |
klassOop k = (klassOop)p; |
|
410 |
instanceKlass::cast(k)->vtable()->print(); |
|
411 |
} |
|
412 |
||
413 |
||
414 |
extern "C" void nm(intptr_t p) { |
|
415 |
// Actually we look through all CodeBlobs (the nm name has been kept for backwards compatability) |
|
416 |
Command c("nm"); |
|
417 |
CodeBlob* cb = CodeCache::find_blob((address)p); |
|
418 |
if (cb == NULL) { |
|
419 |
tty->print_cr("NULL"); |
|
420 |
} else { |
|
421 |
cb->print(); |
|
422 |
} |
|
423 |
} |
|
424 |
||
425 |
||
426 |
extern "C" void disnm(intptr_t p) { |
|
427 |
Command c("disnm"); |
|
428 |
CodeBlob* cb = CodeCache::find_blob((address) p); |
|
7433 | 429 |
nmethod* nm = cb->as_nmethod_or_null(); |
430 |
if (nm) { |
|
431 |
nm->print(); |
|
432 |
Disassembler::decode(nm); |
|
433 |
} else { |
|
434 |
cb->print(); |
|
435 |
Disassembler::decode(cb); |
|
436 |
} |
|
1 | 437 |
} |
438 |
||
439 |
||
440 |
extern "C" void printnm(intptr_t p) { |
|
441 |
char buffer[256]; |
|
442 |
sprintf(buffer, "printnm: " INTPTR_FORMAT, p); |
|
443 |
Command c(buffer); |
|
444 |
CodeBlob* cb = CodeCache::find_blob((address) p); |
|
445 |
if (cb->is_nmethod()) { |
|
446 |
nmethod* nm = (nmethod*)cb; |
|
447 |
nm->print_nmethod(true); |
|
448 |
} |
|
449 |
} |
|
450 |
||
451 |
||
452 |
extern "C" void universe() { |
|
453 |
Command c("universe"); |
|
454 |
Universe::print(); |
|
455 |
} |
|
456 |
||
457 |
||
458 |
extern "C" void verify() { |
|
459 |
// try to run a verify on the entire system |
|
460 |
// note: this may not be safe if we're not at a safepoint; for debugging, |
|
461 |
// this manipulates the safepoint settings to avoid assertion failures |
|
462 |
Command c("universe verify"); |
|
463 |
bool safe = SafepointSynchronize::is_at_safepoint(); |
|
464 |
if (!safe) { |
|
465 |
tty->print_cr("warning: not at safepoint -- verify may fail"); |
|
466 |
SafepointSynchronize::set_is_at_safepoint(); |
|
467 |
} |
|
468 |
// Ensure Eden top is correct before verification |
|
469 |
Universe::heap()->prepare_for_verify(); |
|
470 |
Universe::verify(true); |
|
471 |
if (!safe) SafepointSynchronize::set_is_not_at_safepoint(); |
|
472 |
} |
|
473 |
||
474 |
||
475 |
extern "C" void pp(void* p) { |
|
476 |
Command c("pp"); |
|
477 |
FlagSetting fl(PrintVMMessages, true); |
|
9437
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|
478 |
FlagSetting f2(DisplayVMOutput, true); |
1 | 479 |
if (Universe::heap()->is_in(p)) { |
480 |
oop obj = oop(p); |
|
481 |
obj->print(); |
|
482 |
} else { |
|
10739 | 483 |
tty->print(PTR_FORMAT, p); |
1 | 484 |
} |
485 |
} |
|
486 |
||
487 |
||
488 |
// pv: print vm-printable object |
|
489 |
extern "C" void pa(intptr_t p) { ((AllocatedObj*) p)->print(); } |
|
490 |
extern "C" void findpc(intptr_t x); |
|
491 |
||
10739 | 492 |
#endif // !PRODUCT |
493 |
||
1 | 494 |
extern "C" void ps() { // print stack |
10739 | 495 |
if (Thread::current() == NULL) return; |
1 | 496 |
Command c("ps"); |
497 |
||
498 |
||
499 |
// Prints the stack of the current Java thread |
|
500 |
JavaThread* p = JavaThread::active(); |
|
501 |
tty->print(" for thread: "); |
|
502 |
p->print(); |
|
503 |
tty->cr(); |
|
504 |
||
505 |
if (p->has_last_Java_frame()) { |
|
506 |
// If the last_Java_fp is set we are in C land and |
|
507 |
// can call the standard stack_trace function. |
|
10739 | 508 |
#ifdef PRODUCT |
509 |
p->print_stack(); |
|
510 |
} else { |
|
511 |
tty->print_cr("Cannot find the last Java frame, printing stack disabled."); |
|
512 |
#else // !PRODUCT |
|
1 | 513 |
p->trace_stack(); |
514 |
} else { |
|
515 |
frame f = os::current_frame(); |
|
516 |
RegisterMap reg_map(p); |
|
517 |
f = f.sender(®_map); |
|
518 |
tty->print("(guessing starting frame id=%#p based on current fp)\n", f.id()); |
|
519 |
p->trace_stack_from(vframe::new_vframe(&f, ®_map, p)); |
|
520 |
pd_ps(f); |
|
10739 | 521 |
#endif // PRODUCT |
1 | 522 |
} |
523 |
||
524 |
} |
|
525 |
||
9437
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7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
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parents:
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diff
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|
526 |
extern "C" void pfl() { |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
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parents:
8921
diff
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|
527 |
// print frame layout |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8921
diff
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|
528 |
Command c("pfl"); |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
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diff
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|
529 |
JavaThread* p = JavaThread::active(); |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8921
diff
changeset
|
530 |
tty->print(" for thread: "); |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8921
diff
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|
531 |
p->print(); |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8921
diff
changeset
|
532 |
tty->cr(); |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8921
diff
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|
533 |
if (p->has_last_Java_frame()) { |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents:
8921
diff
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|
534 |
p->print_frame_layout(); |
9981851b4b8c
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
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parents:
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|
535 |
} |
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|
536 |
} |
1 | 537 |
|
10739 | 538 |
#ifndef PRODUCT |
539 |
||
1 | 540 |
extern "C" void psf() { // print stack frames |
541 |
{ |
|
542 |
Command c("psf"); |
|
543 |
JavaThread* p = JavaThread::active(); |
|
544 |
tty->print(" for thread: "); |
|
545 |
p->print(); |
|
546 |
tty->cr(); |
|
547 |
if (p->has_last_Java_frame()) { |
|
548 |
p->trace_frames(); |
|
549 |
} |
|
550 |
} |
|
551 |
} |
|
552 |
||
553 |
||
554 |
extern "C" void threads() { |
|
555 |
Command c("threads"); |
|
556 |
Threads::print(false, true); |
|
557 |
} |
|
558 |
||
559 |
||
560 |
extern "C" void psd() { |
|
561 |
Command c("psd"); |
|
562 |
SystemDictionary::print(); |
|
563 |
} |
|
564 |
||
565 |
||
566 |
extern "C" void safepoints() { |
|
567 |
Command c("safepoints"); |
|
568 |
SafepointSynchronize::print_state(); |
|
569 |
} |
|
570 |
||
10739 | 571 |
#endif // !PRODUCT |
1 | 572 |
|
573 |
extern "C" void pss() { // print all stacks |
|
10739 | 574 |
if (Thread::current() == NULL) return; |
1 | 575 |
Command c("pss"); |
10739 | 576 |
Threads::print(true, PRODUCT_ONLY(false) NOT_PRODUCT(true)); |
1 | 577 |
} |
578 |
||
10739 | 579 |
#ifndef PRODUCT |
1 | 580 |
|
581 |
extern "C" void debug() { // to set things up for compiler debugging |
|
582 |
Command c("debug"); |
|
583 |
WizardMode = true; |
|
584 |
PrintVMMessages = PrintCompilation = true; |
|
585 |
PrintInlining = PrintAssembly = true; |
|
586 |
tty->flush(); |
|
587 |
} |
|
588 |
||
589 |
||
590 |
extern "C" void ndebug() { // undo debug() |
|
591 |
Command c("ndebug"); |
|
592 |
PrintCompilation = false; |
|
593 |
PrintInlining = PrintAssembly = false; |
|
594 |
tty->flush(); |
|
595 |
} |
|
596 |
||
597 |
||
598 |
extern "C" void flush() { |
|
599 |
Command c("flush"); |
|
600 |
tty->flush(); |
|
601 |
} |
|
602 |
||
11788 | 603 |
extern "C" void events() { |
604 |
Command c("events"); |
|
605 |
Events::print(); |
|
606 |
} |
|
1 | 607 |
|
608 |
// Given a heap address that was valid before the most recent GC, if |
|
609 |
// the oop that used to contain it is still live, prints the new |
|
610 |
// location of the oop and the address. Useful for tracking down |
|
611 |
// certain kinds of naked oop and oop map bugs. |
|
612 |
extern "C" void pnl(intptr_t old_heap_addr) { |
|
613 |
// Print New Location of old heap address |
|
614 |
Command c("pnl"); |
|
615 |
#ifndef VALIDATE_MARK_SWEEP |
|
616 |
tty->print_cr("Requires build with VALIDATE_MARK_SWEEP defined (debug build) and RecordMarkSweepCompaction enabled"); |
|
617 |
#else |
|
618 |
MarkSweep::print_new_location_of_heap_address((HeapWord*) old_heap_addr); |
|
619 |
#endif |
|
620 |
} |
|
621 |
||
622 |
||
623 |
extern "C" methodOop findm(intptr_t pc) { |
|
624 |
Command c("findm"); |
|
625 |
nmethod* nm = CodeCache::find_nmethod((address)pc); |
|
626 |
return (nm == NULL) ? (methodOop)NULL : nm->method(); |
|
627 |
} |
|
628 |
||
629 |
||
630 |
extern "C" nmethod* findnm(intptr_t addr) { |
|
631 |
Command c("findnm"); |
|
632 |
return CodeCache::find_nmethod((address)addr); |
|
633 |
} |
|
634 |
||
635 |
static address same_page(address x, address y) { |
|
636 |
intptr_t page_bits = -os::vm_page_size(); |
|
637 |
if ((intptr_t(x) & page_bits) == (intptr_t(y) & page_bits)) { |
|
638 |
return x; |
|
639 |
} else if (x > y) { |
|
640 |
return (address)(intptr_t(y) | ~page_bits) + 1; |
|
641 |
} else { |
|
642 |
return (address)(intptr_t(y) & page_bits); |
|
643 |
} |
|
644 |
} |
|
645 |
||
646 |
class LookForRefInGenClosure : public OopsInGenClosure { |
|
647 |
public: |
|
648 |
oop target; |
|
649 |
void do_oop(oop* o) { |
|
650 |
if (o != NULL && *o == target) { |
|
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
651 |
tty->print_cr(INTPTR_FORMAT, o); |
1 | 652 |
} |
653 |
} |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
654 |
void do_oop(narrowOop* o) { ShouldNotReachHere(); } |
1 | 655 |
}; |
656 |
||
657 |
||
658 |
class LookForRefInObjectClosure : public ObjectClosure { |
|
659 |
private: |
|
660 |
LookForRefInGenClosure look_in_object; |
|
661 |
public: |
|
662 |
LookForRefInObjectClosure(oop target) { look_in_object.target = target; } |
|
663 |
void do_object(oop obj) { |
|
664 |
obj->oop_iterate(&look_in_object); |
|
665 |
} |
|
666 |
}; |
|
667 |
||
668 |
||
669 |
static void findref(intptr_t x) { |
|
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
670 |
CollectedHeap *ch = Universe::heap(); |
1 | 671 |
LookForRefInGenClosure lookFor; |
672 |
lookFor.target = (oop) x; |
|
673 |
LookForRefInObjectClosure look_in_object((oop) x); |
|
674 |
||
675 |
tty->print_cr("Searching heap:"); |
|
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
676 |
ch->object_iterate(&look_in_object); |
1 | 677 |
|
678 |
tty->print_cr("Searching strong roots:"); |
|
679 |
Universe::oops_do(&lookFor, false); |
|
680 |
JNIHandles::oops_do(&lookFor); // Global (strong) JNI handles |
|
3908
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
1551
diff
changeset
|
681 |
Threads::oops_do(&lookFor, NULL); |
1 | 682 |
ObjectSynchronizer::oops_do(&lookFor); |
683 |
//FlatProfiler::oops_do(&lookFor); |
|
684 |
SystemDictionary::oops_do(&lookFor); |
|
685 |
||
3908
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
1551
diff
changeset
|
686 |
tty->print_cr("Searching code cache:"); |
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
1551
diff
changeset
|
687 |
CodeCache::oops_do(&lookFor); |
24b55ad4c228
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
1551
diff
changeset
|
688 |
|
1 | 689 |
tty->print_cr("Done."); |
690 |
} |
|
691 |
||
692 |
class FindClassObjectClosure: public ObjectClosure { |
|
693 |
private: |
|
694 |
const char* _target; |
|
695 |
public: |
|
696 |
FindClassObjectClosure(const char name[]) { _target = name; } |
|
697 |
||
698 |
virtual void do_object(oop obj) { |
|
699 |
if (obj->is_klass()) { |
|
700 |
Klass* k = klassOop(obj)->klass_part(); |
|
701 |
if (k->name() != NULL) { |
|
702 |
ResourceMark rm; |
|
703 |
const char* ext = k->external_name(); |
|
704 |
if ( strcmp(_target, ext) == 0 ) { |
|
705 |
tty->print_cr("Found " INTPTR_FORMAT, obj); |
|
706 |
obj->print(); |
|
707 |
} |
|
708 |
} |
|
709 |
} |
|
710 |
} |
|
711 |
}; |
|
712 |
||
713 |
// |
|
714 |
extern "C" void findclass(const char name[]) { |
|
715 |
Command c("findclass"); |
|
716 |
if (name != NULL) { |
|
717 |
tty->print_cr("Finding class %s -> ", name); |
|
718 |
FindClassObjectClosure srch(name); |
|
719 |
Universe::heap()->permanent_object_iterate(&srch); |
|
720 |
} |
|
721 |
} |
|
722 |
||
723 |
// Another interface that isn't ambiguous in dbx. |
|
724 |
// Can we someday rename the other find to hsfind? |
|
725 |
extern "C" void hsfind(intptr_t x) { |
|
726 |
Command c("hsfind"); |
|
6176
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5547
diff
changeset
|
727 |
os::print_location(tty, x, false); |
1 | 728 |
} |
729 |
||
730 |
||
731 |
extern "C" void hsfindref(intptr_t x) { |
|
732 |
Command c("hsfindref"); |
|
733 |
findref(x); |
|
734 |
} |
|
735 |
||
736 |
extern "C" void find(intptr_t x) { |
|
737 |
Command c("find"); |
|
6176
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5547
diff
changeset
|
738 |
os::print_location(tty, x, false); |
1 | 739 |
} |
740 |
||
741 |
||
742 |
extern "C" void findpc(intptr_t x) { |
|
743 |
Command c("findpc"); |
|
6176
4d9030fe341f
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
5547
diff
changeset
|
744 |
os::print_location(tty, x, true); |
1 | 745 |
} |
746 |
||
747 |
||
748 |
// int versions of all methods to avoid having to type type casts in the debugger |
|
749 |
||
750 |
void pp(intptr_t p) { pp((void*)p); } |
|
751 |
void pp(oop p) { pp((void*)p); } |
|
752 |
||
753 |
void help() { |
|
754 |
Command c("help"); |
|
755 |
tty->print_cr("basic"); |
|
756 |
tty->print_cr(" pp(void* p) - try to make sense of p"); |
|
757 |
tty->print_cr(" pv(intptr_t p)- ((PrintableResourceObj*) p)->print()"); |
|
758 |
tty->print_cr(" ps() - print current thread stack"); |
|
759 |
tty->print_cr(" pss() - print all thread stacks"); |
|
760 |
tty->print_cr(" pm(int pc) - print methodOop given compiled PC"); |
|
761 |
tty->print_cr(" findm(intptr_t pc) - finds methodOop"); |
|
762 |
tty->print_cr(" find(intptr_t x) - finds & prints nmethod/stub/bytecode/oop based on pointer into it"); |
|
763 |
||
764 |
tty->print_cr("misc."); |
|
765 |
tty->print_cr(" flush() - flushes the log file"); |
|
11788 | 766 |
tty->print_cr(" events() - dump events from ring buffers"); |
1 | 767 |
|
768 |
||
769 |
tty->print_cr("compiler debugging"); |
|
770 |
tty->print_cr(" debug() - to set things up for compiler debugging"); |
|
771 |
tty->print_cr(" ndebug() - undo debug"); |
|
772 |
} |
|
773 |
||
774 |
#if 0 |
|
775 |
||
776 |
// BobV's command parser for debugging on windows when nothing else works. |
|
777 |
||
778 |
enum CommandID { |
|
779 |
CMDID_HELP, |
|
780 |
CMDID_QUIT, |
|
781 |
CMDID_HSFIND, |
|
782 |
CMDID_PSS, |
|
783 |
CMDID_PS, |
|
784 |
CMDID_PSF, |
|
785 |
CMDID_FINDM, |
|
786 |
CMDID_FINDNM, |
|
787 |
CMDID_PP, |
|
788 |
CMDID_BPT, |
|
789 |
CMDID_EXIT, |
|
790 |
CMDID_VERIFY, |
|
791 |
CMDID_THREADS, |
|
792 |
CMDID_ILLEGAL = 99 |
|
793 |
}; |
|
794 |
||
795 |
struct CommandParser { |
|
796 |
char *name; |
|
797 |
CommandID code; |
|
798 |
char *description; |
|
799 |
}; |
|
800 |
||
801 |
struct CommandParser CommandList[] = { |
|
802 |
(char *)"help", CMDID_HELP, " Dump this list", |
|
803 |
(char *)"quit", CMDID_QUIT, " Return from this routine", |
|
804 |
(char *)"hsfind", CMDID_HSFIND, "Perform an hsfind on an address", |
|
805 |
(char *)"ps", CMDID_PS, " Print Current Thread Stack Trace", |
|
806 |
(char *)"pss", CMDID_PSS, " Print All Thread Stack Trace", |
|
807 |
(char *)"psf", CMDID_PSF, " Print All Stack Frames", |
|
808 |
(char *)"findm", CMDID_FINDM, " Find a methodOop from a PC", |
|
809 |
(char *)"findnm", CMDID_FINDNM, "Find an nmethod from a PC", |
|
810 |
(char *)"pp", CMDID_PP, " Find out something about a pointer", |
|
811 |
(char *)"break", CMDID_BPT, " Execute a breakpoint", |
|
812 |
(char *)"exitvm", CMDID_EXIT, "Exit the VM", |
|
813 |
(char *)"verify", CMDID_VERIFY, "Perform a Heap Verify", |
|
814 |
(char *)"thread", CMDID_THREADS, "Dump Info on all Threads", |
|
815 |
(char *)0, CMDID_ILLEGAL |
|
816 |
}; |
|
817 |
||
818 |
||
819 |
// get_debug_command() |
|
820 |
// |
|
821 |
// Read a command from standard input. |
|
822 |
// This is useful when you have a debugger |
|
823 |
// which doesn't support calling into functions. |
|
824 |
// |
|
825 |
void get_debug_command() |
|
826 |
{ |
|
827 |
ssize_t count; |
|
828 |
int i,j; |
|
829 |
bool gotcommand; |
|
830 |
intptr_t addr; |
|
831 |
char buffer[256]; |
|
832 |
nmethod *nm; |
|
833 |
methodOop m; |
|
834 |
||
835 |
tty->print_cr("You have entered the diagnostic command interpreter"); |
|
836 |
tty->print("The supported commands are:\n"); |
|
837 |
for ( i=0; ; i++ ) { |
|
838 |
if ( CommandList[i].code == CMDID_ILLEGAL ) |
|
839 |
break; |
|
840 |
tty->print_cr(" %s \n", CommandList[i].name ); |
|
841 |
} |
|
842 |
||
843 |
while ( 1 ) { |
|
844 |
gotcommand = false; |
|
845 |
tty->print("Please enter a command: "); |
|
846 |
count = scanf("%s", buffer) ; |
|
847 |
if ( count >=0 ) { |
|
848 |
for ( i=0; ; i++ ) { |
|
849 |
if ( CommandList[i].code == CMDID_ILLEGAL ) { |
|
850 |
if (!gotcommand) tty->print("Invalid command, please try again\n"); |
|
851 |
break; |
|
852 |
} |
|
853 |
if ( strcmp(buffer, CommandList[i].name) == 0 ) { |
|
854 |
gotcommand = true; |
|
855 |
switch ( CommandList[i].code ) { |
|
856 |
case CMDID_PS: |
|
857 |
ps(); |
|
858 |
break; |
|
859 |
case CMDID_PSS: |
|
860 |
pss(); |
|
861 |
break; |
|
862 |
case CMDID_PSF: |
|
863 |
psf(); |
|
864 |
break; |
|
865 |
case CMDID_FINDM: |
|
866 |
tty->print("Please enter the hex addr to pass to findm: "); |
|
867 |
scanf("%I64X", &addr); |
|
868 |
m = (methodOop)findm(addr); |
|
869 |
tty->print("findm(0x%I64X) returned 0x%I64X\n", addr, m); |
|
870 |
break; |
|
871 |
case CMDID_FINDNM: |
|
872 |
tty->print("Please enter the hex addr to pass to findnm: "); |
|
873 |
scanf("%I64X", &addr); |
|
874 |
nm = (nmethod*)findnm(addr); |
|
875 |
tty->print("findnm(0x%I64X) returned 0x%I64X\n", addr, nm); |
|
876 |
break; |
|
877 |
case CMDID_PP: |
|
878 |
tty->print("Please enter the hex addr to pass to pp: "); |
|
879 |
scanf("%I64X", &addr); |
|
880 |
pp((void*)addr); |
|
881 |
break; |
|
882 |
case CMDID_EXIT: |
|
883 |
exit(0); |
|
884 |
case CMDID_HELP: |
|
885 |
tty->print("Here are the supported commands: "); |
|
886 |
for ( j=0; ; j++ ) { |
|
887 |
if ( CommandList[j].code == CMDID_ILLEGAL ) |
|
888 |
break; |
|
889 |
tty->print_cr(" %s -- %s\n", CommandList[j].name, |
|
890 |
CommandList[j].description ); |
|
891 |
} |
|
892 |
break; |
|
893 |
case CMDID_QUIT: |
|
894 |
return; |
|
895 |
break; |
|
896 |
case CMDID_BPT: |
|
897 |
BREAKPOINT; |
|
898 |
break; |
|
899 |
case CMDID_VERIFY: |
|
900 |
verify();; |
|
901 |
break; |
|
902 |
case CMDID_THREADS: |
|
903 |
threads();; |
|
904 |
break; |
|
905 |
case CMDID_HSFIND: |
|
906 |
tty->print("Please enter the hex addr to pass to hsfind: "); |
|
907 |
scanf("%I64X", &addr); |
|
908 |
tty->print("Calling hsfind(0x%I64X)\n", addr); |
|
909 |
hsfind(addr); |
|
910 |
break; |
|
911 |
default: |
|
912 |
case CMDID_ILLEGAL: |
|
913 |
break; |
|
914 |
} |
|
915 |
} |
|
916 |
} |
|
917 |
} |
|
918 |
} |
|
919 |
} |
|
920 |
#endif |
|
921 |
||
10739 | 922 |
#endif // !PRODUCT |