Mercurial > hg > truffle
annotate src/share/vm/utilities/vmError.hpp @ 1721:413ad0331a0c
6977924: Changes for 6975078 produce build error with certain gcc versions
Summary: The changes introduced for 6975078 assign badHeapOopVal to the _allocation field in the ResourceObj class. In 32 bit linux builds with certain versions of gcc this assignment will be flagged as an error while compiling allocation.cpp. In 32 bit builds the constant value badHeapOopVal (which is cast to an intptr_t) is negative. The _allocation field is typed as an unsigned intptr_t and gcc catches this as an error.
Reviewed-by: jcoomes, ysr, phh
| author | johnc |
|---|---|
| date | Wed, 18 Aug 2010 10:59:06 -0700 |
| parents | 126ea7725993 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 | |
| 26 class VM_ReportJavaOutOfMemory; | |
| 27 | |
| 28 class VMError : public StackObj { | |
| 29 friend class VM_ReportJavaOutOfMemory; | |
| 30 | |
| 31 enum ErrorType { | |
| 32 internal_error = 0xe0000000, | |
| 33 oom_error = 0xe0000001 | |
| 34 }; | |
| 35 int _id; // Solaris/Linux signals: 0 - SIGRTMAX | |
| 36 // Windows exceptions: 0xCxxxxxxx system errors | |
| 37 // 0x8xxxxxxx system warnings | |
| 38 | |
| 39 const char * _message; | |
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40 const char * _detail_msg; |
| 0 | 41 |
| 42 Thread * _thread; // NULL if it's native thread | |
| 43 | |
| 44 | |
| 45 // additional info for crashes | |
| 46 address _pc; // faulting PC | |
| 47 void * _siginfo; // ExceptionRecord on Windows, | |
| 48 // siginfo_t on Solaris/Linux | |
| 49 void * _context; // ContextRecord on Windows, | |
| 50 // ucontext_t on Solaris/Linux | |
| 51 | |
| 52 // additional info for VM internal errors | |
| 53 const char * _filename; | |
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54 int _lineno; |
| 0 | 55 |
| 56 // used by fatal error handler | |
| 57 int _current_step; | |
| 58 const char * _current_step_info; | |
| 59 int _verbose; | |
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60 // First error, and its thread id. We must be able to handle native thread, |
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61 // so use thread id instead of Thread* to identify thread. |
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62 static VMError* volatile first_error; |
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63 static volatile jlong first_error_tid; |
| 0 | 64 |
| 65 // used by reporting about OOM | |
| 66 size_t _size; | |
| 67 | |
| 68 // set signal handlers on Solaris/Linux or the default exception filter | |
| 69 // on Windows, to handle recursive crashes. | |
| 70 void reset_signal_handlers(); | |
| 71 | |
| 72 // handle -XX:+ShowMessageBoxOnError. buf is used to format the message string | |
| 73 void show_message_box(char* buf, int buflen); | |
| 74 | |
| 75 // generate an error report | |
| 76 void report(outputStream* st); | |
| 77 | |
| 1384 | 78 // generate a stack trace |
| 79 static void print_stack_trace(outputStream* st, JavaThread* jt, | |
| 80 char* buf, int buflen, bool verbose = false); | |
| 81 | |
| 0 | 82 // accessor |
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83 const char* message() const { return _message; } |
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84 const char* detail_msg() const { return _detail_msg; } |
| 0 | 85 |
| 86 public: | |
| 87 // Constructor for crashes | |
| 88 VMError(Thread* thread, int sig, address pc, void* siginfo, void* context); | |
| 89 // Constructor for VM internal errors | |
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90 VMError(Thread* thread, const char* filename, int lineno, |
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91 const char* message, const char * detail_msg); |
| 0 | 92 |
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93 // Constructor for VM OOM errors |
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94 VMError(Thread* thread, const char* filename, int lineno, size_t size, |
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95 const char* message); |
| 0 | 96 // Constructor for non-fatal errors |
| 97 VMError(const char* message); | |
| 98 | |
| 99 // return a string to describe the error | |
| 100 char *error_string(char* buf, int buflen); | |
| 101 | |
| 102 // main error reporting function | |
| 103 void report_and_die(); | |
| 104 | |
| 105 // reporting OutOfMemoryError | |
| 106 void report_java_out_of_memory(); | |
| 107 | |
| 108 // returns original flags for signal, if it was resetted, or -1 if | |
| 109 // signal was not changed by error reporter | |
| 110 static int get_resetted_sigflags(int sig); | |
| 111 | |
| 112 // returns original handler for signal, if it was resetted, or NULL if | |
| 113 // signal was not changed by error reporter | |
| 114 static address get_resetted_sighandler(int sig); | |
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115 |
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116 // check to see if fatal error reporting is in progress |
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117 static bool fatal_error_in_progress() { return first_error != NULL; } |
| 0 | 118 }; |