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1 /*
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2 * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 // assertions
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26 #ifdef ASSERT
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27 // Turn this off by default:
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28 //#define USE_REPEATED_ASSERTS
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29 #ifdef USE_REPEATED_ASSERTS
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30 #define assert(p,msg) \
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31 { for (int __i = 0; __i < AssertRepeat; __i++) { \
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32 if (!(p)) { \
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33 report_assertion_failure(__FILE__, __LINE__, \
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34 "assert(" XSTR(p) ",\"" msg "\")");\
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35 BREAKPOINT; \
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36 } \
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37 } \
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38 }
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39 #else
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40 #define assert(p,msg) \
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41 if (!(p)) { \
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42 report_assertion_failure(__FILE__, __LINE__, \
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43 "assert(" XSTR(p) ",\"" msg "\")");\
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44 BREAKPOINT; \
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45 }
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46 #endif
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47
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48 // This version of assert is for use with checking return status from
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49 // library calls that return actual error values eg. EINVAL,
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50 // ENOMEM etc, rather than returning -1 and setting errno.
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51 // When the status is not what is expected it is very useful to know
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52 // what status was actually returned, so we pass the status variable as
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53 // an extra arg and use strerror to convert it to a meaningful string
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54 // like "Invalid argument", "out of memory" etc
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55 #define assert_status(p, status, msg) \
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56 do { \
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57 if (!(p)) { \
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58 char buf[128]; \
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59 snprintf(buf, 127, \
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60 "assert_status(" XSTR(p) ", error: %s(%d), \"" msg "\")" , \
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61 strerror((status)), (status)); \
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62 report_assertion_failure(__FILE__, __LINE__, buf); \
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63 BREAKPOINT; \
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64 } \
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65 } while (0)
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66
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67 // Another version of assert where the message is not a string literal
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68 // The boolean condition is not printed out because cpp doesn't like it.
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69 #define assert_msg(p, msg) \
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70 if (!(p)) { \
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71 report_assertion_failure(__FILE__, __LINE__, msg); \
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72 BREAKPOINT; \
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73 }
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74
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75 // Do not assert this condition if there's already another error reported.
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76 #define assert_if_no_error(cond,msg) assert((cond) || is_error_reported(), msg)
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77 #else
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78 #define assert(p,msg)
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79 #define assert_status(p,status,msg)
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80 #define assert_if_no_error(cond,msg)
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81 #define assert_msg(cond,msg)
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82 #endif
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83
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84
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85 // fatals
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86 #define fatal(m) { report_fatal(__FILE__, __LINE__, m ); BREAKPOINT; }
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87 #define fatal1(m,x1) { report_fatal_vararg(__FILE__, __LINE__, m, x1 ); BREAKPOINT; }
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88 #define fatal2(m,x1,x2) { report_fatal_vararg(__FILE__, __LINE__, m, x1, x2 ); BREAKPOINT; }
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89 #define fatal3(m,x1,x2,x3) { report_fatal_vararg(__FILE__, __LINE__, m, x1, x2, x3 ); BREAKPOINT; }
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90 #define fatal4(m,x1,x2,x3,x4) { report_fatal_vararg(__FILE__, __LINE__, m, x1, x2, x3, x4 ); BREAKPOINT; }
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91
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92 // out of memory
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93 #define vm_exit_out_of_memory(s,m) { report_vm_out_of_memory(__FILE__, __LINE__, s, m ); BREAKPOINT; }
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94 #define vm_exit_out_of_memory1(s,m,x1) { report_vm_out_of_memory_vararg(__FILE__, __LINE__, s, m, x1 ); BREAKPOINT; }
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95 #define vm_exit_out_of_memory2(s,m,x1,x2) { report_vm_out_of_memory_vararg(__FILE__, __LINE__, s, m, x1, x2 ); BREAKPOINT; }
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96 #define vm_exit_out_of_memory3(s,m,x1,x2,x3) { report_vm_out_of_memory_vararg(__FILE__, __LINE__, s, m, x1, x2, x3 ); BREAKPOINT; }
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97 #define vm_exit_out_of_memory4(s,m,x1,x2,x3,x4) { report_vm_out_of_memory_vararg(__FILE__, __LINE__, s, m, x1, x2, x3, x4); BREAKPOINT; }
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98
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99 // guarantee is like assert except it's always executed -- use it for
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100 // cheap tests that catch errors that would otherwise be hard to find
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101 // guarantee is also used for Verify options.
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102 #define guarantee(b,msg) { if (!(b)) fatal("guarantee(" XSTR(b) ",\"" msg "\")"); }
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103
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104 #define ShouldNotCallThis() { report_should_not_call (__FILE__, __LINE__); BREAKPOINT; }
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105 #define ShouldNotReachHere() { report_should_not_reach_here (__FILE__, __LINE__); BREAKPOINT; }
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106 #define Unimplemented() { report_unimplemented (__FILE__, __LINE__); BREAKPOINT; }
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107 #define Untested(msg) { report_untested (__FILE__, __LINE__, msg); BREAKPOINT; }
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108
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109 // error reporting helper functions
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110 void report_assertion_failure(const char* file_name, int line_no, const char* message);
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111 void report_fatal_vararg(const char* file_name, int line_no, const char* format, ...);
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112 void report_fatal(const char* file_name, int line_no, const char* message);
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113 void report_vm_out_of_memory_vararg(const char* file_name, int line_no, size_t size, const char* format, ...);
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114 void report_vm_out_of_memory(const char* file_name, int line_no, size_t size, const char* message);
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115 void report_should_not_call(const char* file_name, int line_no);
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116 void report_should_not_reach_here(const char* file_name, int line_no);
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117 void report_unimplemented(const char* file_name, int line_no);
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118 void report_untested(const char* file_name, int line_no, const char* msg);
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119 void warning(const char* format, ...);
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120
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121 // out of memory reporting
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122 void report_java_out_of_memory(const char* message);
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123
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124 // Support for self-destruct
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125 bool is_error_reported();
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126 void set_error_reported();
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127
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128 void pd_ps(frame f);
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129 void pd_obfuscate_location(char *buf, size_t buflen);
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