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Table of Contents Summary of gdb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Free Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Free Software Needs Free Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Contributors to gdb. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1 A Sample gdb Session . . . . . . . . . . . . . . . . . . . . . . 7 2 Getting In and Out of gdb . . . . . . . . . . . . . . . . 11 2.1 Invoking gdb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.1 Choosing Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.2 Choosing Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.3 What gdb Does During Startup . . . . . . . . . . . . . . . . . . . . . . . . 2.2 Quitting gdb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 Shell Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4 Logging Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 11 12 13 15 16 16 16 gdb Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.1 Command Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.2 Command Completion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.3 Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4 Running Programs Under gdb . . . . . . . . . . . . . 25 4.1 Compiling for Debugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2 Starting your Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3 Your Program’s Arguments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4 Your Program’s Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5 Your Program’s Working Directory . . . . . . . . . . . . . . . . . . . . . . . . . . 4.6 Your Program’s Input and Output . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.7 Debugging an Already-running Process . . . . . . . . . . . . . . . . . . . . . . 4.8 Killing the Child Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9 Debugging Programs with Multiple Threads . . . . . . . . . . . . . . . . . . 4.10 Debugging Programs with Multiple Processes. . . . . . . . . . . . . . . . 4.11 Setting a Bookmark to Return to Later . . . . . . . . . . . . . . . . . . . . . 4.11.1 A Non-obvious Benefit of Using Checkpoints . . . . . . . . . . . . 5 25 26 28 28 29 29 30 31 31 34 36 37 Stopping and Continuing . . . . . . . . . . . . . . . . . . 39 5.1 Breakpoints, Watchpoints, and Catchpoints . . . . . . . . . . . . . . . . . . 5.1.1 Setting Breakpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.2 Setting Watchpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.3 Setting Catchpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.4 Deleting Breakpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 40 45 47 49 ii Debugging with gdb 5.1.5 Disabling Breakpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.6 Break Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.7 Breakpoint Command Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.8 “Cannot insert breakpoints” . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.9 “Breakpoint address adjusted...” . . . . . . . . . . . . . . . . . . . . . . . . 5.2 Continuing and Stepping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.3 Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4 Stopping and Starting Multi-thread Programs . . . . . . . . . . . . . . . . 6 Examining the Stack . . . . . . . . . . . . . . . . . . . . . . 61 6.1 6.2 6.3 6.4 7 Stack Frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Backtraces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting a Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Information About a Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 62 64 65 Examining Source Files . . . . . . . . . . . . . . . . . . . 67 7.1 Printing Source Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2 Specifying a Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3 Editing Source Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3.1 Choosing your Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.4 Searching Source Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 Specifying Source Directories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6 Source and Machine Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 49 50 52 53 53 54 57 59 67 68 69 69 70 70 72 Examining Data . . . . . . . . . . . . . . . . . . . . . . . . . . 75 8.1 Expressions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.2 Ambiguous Expressions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3 Program Variables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.4 Artificial Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5 Output Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.6 Examining Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.7 Automatic Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.8 Print Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.9 Value History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.10 Convenience Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.11 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.12 Floating Point Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.13 Vector Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.14 Operating System Auxiliary Information . . . . . . . . . . . . . . . . . . . . 8.15 Memory Region Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.1 Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.1.1 Memory Access Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.1.2 Memory Access Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.1.3 Data Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.15.2 Memory Access Checking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.16 Copy Between Memory and a File . . . . . . . . . . . . . . . . . . . . . . . . . . 8.17 How to Produce a Core File from Your Program . . . . . . . . . . . . . 75 76 77 79 79 81 82 84 90 90 92 93 94 94 94 95 95 96 96 96 96 97 iii 8.18 Character Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 8.19 Caching Data of Remote Targets . . . . . . . . . . . . . . . . . . . . . . . . . . 100 8.20 Search Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 9 C Preprocessor Macros . . . . . . . . . . . . . . . . . . 103 10 Tracepoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 10.1 Commands to Set Tracepoints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1.1 Create and Delete Tracepoints . . . . . . . . . . . . . . . . . . . . . . . . 10.1.2 Enable and Disable Tracepoints . . . . . . . . . . . . . . . . . . . . . . . 10.1.3 Tracepoint Passcounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1.4 Tracepoint Action Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1.5 Listing Tracepoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1.6 Starting and Stopping Trace Experiments . . . . . . . . . . . . . 10.2 Using the Collected Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2.1 tfind n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2.2 tdump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2.3 save-tracepoints filename . . . . . . . . . . . . . . . . . . . . . . . . 10.3 Convenience Variables for Tracepoints . . . . . . . . . . . . . . . . . . . . . 11 Debugging Programs That Use Overlays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 11.1 11.2 11.3 11.4 12 107 107 108 108 109 110 110 111 111 113 114 114 How Overlays Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overlay Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic Overlay Debugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overlay Sample Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 116 118 119 Using gdb with Different Languages . . . . . 121 12.1 Switching Between Source Languages . . . . . . . . . . . . . . . . . . . . . . 12.1.1 List of Filename Extensions and Languages . . . . . . . . . . . . 12.1.2 Setting the Working Language . . . . . . . . . . . . . . . . . . . . . . . . 12.1.3 Having gdb Infer the Source Language . . . . . . . . . . . . . . . . 12.2 Displaying the Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.3 Type and Range Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.3.1 An Overview of Type Checking . . . . . . . . . . . . . . . . . . . . . . . 12.3.2 An Overview of Range Checking . . . . . . . . . . . . . . . . . . . . . . 12.4 Supported Languages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.1 C and C++ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.1.1 C and C++ Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.1.2 C and C++ Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.1.3 C++ Expressions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.1.4 C and C++ Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.1.5 C and C++ Type and Range Checks . . . . . . . . . . . . . . 12.4.1.6 gdb and C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.1.7 gdb Features for C++ . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.1.8 Decimal Floating Point format . . . . . . . . . . . . . . . . . . . 12.4.2 Objective-C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 121 122 122 122 123 123 124 125 125 126 127 128 129 129 129 130 131 131 iv Debugging with gdb 12.4.2.1 Method Names in Commands . . . . . . . . . . . . . . . . . . . . 12.4.2.2 The Print Command With Objective-C . . . . . . . . . . . 12.4.3 Fortran . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.3.1 Fortran Operators and Expressions . . . . . . . . . . . . . . . 12.4.3.2 Fortran Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.3.3 Special Fortran Commands . . . . . . . . . . . . . . . . . . . . . . 12.4.4 Pascal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.5 Modula-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.5.1 Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.5.2 Built-in Functions and Procedures . . . . . . . . . . . . . . . . 12.4.5.3 Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.5.4 Modula-2 Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.5.5 Modula-2 Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.5.6 Deviations from Standard Modula-2 . . . . . . . . . . . . . . 12.4.5.7 Modula-2 Type and Range Checks . . . . . . . . . . . . . . . 12.4.5.8 The Scope Operators :: and . . . . . . . . . . . . . . . . . . . . 12.4.5.9 gdb and Modula-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.6 Ada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.6.2 Omissions from Ada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.6.3 Additions to Ada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4.6.4 Stopping at the Very Beginning . . . . . . . . . . . . . . . . . . 12.4.6.5 Known Peculiarities of Ada Mode . . . . . . . . . . . . . . . . 12.5 Unsupported Languages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 132 132 132 133 133 133 133 133 135 136 136 138 138 138 139 139 139 139 140 141 143 143 143 13 Examining the Symbol Table . . . . . . . . . . . . 145 14 Altering Execution . . . . . . . . . . . . . . . . . . . . . 151 14.1 14.2 14.3 14.4 14.5 14.6 15 Assignment to Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuing at a Different Address . . . . . . . . . . . . . . . . . . . . . . . . . Giving your Program a Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Returning from a Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Calling Program Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Patching Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 152 153 153 154 154 gdb Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 15.1 Commands to Specify Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 15.2 Debugging Information in Separate Files . . . . . . . . . . . . . . . . . . . 163 15.3 Errors Reading Symbol Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166 16 Specifying a Debugging Target . . . . . . . . . . 169 16.1 Active Targets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 16.2 Commands for Managing Targets . . . . . . . . . . . . . . . . . . . . . . . . . . 170 16.3 Choosing Target Byte Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 v 17 Debugging Remote Programs . . . . . . . . . . . 173 17.1 Connecting to a Remote Target . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.2 Sending files to a remote system . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.3 Using the gdbserver Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.3.1 Running gdbserver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.3.1.1 Attaching to a Running Program . . . . . . . . . . . . . . . . . 17.3.1.2 Multi-Process Mode for gdbserver . . . . . . . . . . . . . . . 17.3.1.3 Other Command-Line Arguments for gdbserver . . 17.3.2 Connecting to gdbserver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.3.3 Monitor Commands for gdbserver . . . . . . . . . . . . . . . . . . . . 17.4 Remote Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.5 Implementing a Remote Stub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.5.1 What the Stub Can Do for You . . . . . . . . . . . . . . . . . . . . . . . 17.5.2 What You Must Do for the Stub . . . . . . . . . . . . . . . . . . . . . . 17.5.3 Putting it All Together. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 173 175 175 175 176 176 177 177 177 178 181 182 183 184 Configuration-Specific Information . . . . . . . 185 18.1 Native. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.1.1 HP-UX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.1.2 BSD libkvm Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.1.3 SVR4 Process Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.1.4 Features for Debugging djgpp Programs . . . . . . . . . . . . . . 18.1.5 Features for Debugging MS Windows PE Executables . . 18.1.5.1 Support for DLLs without Debugging Symbols . . . . 18.1.5.2 DLL Name Prefixes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.1.5.3 Working with Minimal Symbols . . . . . . . . . . . . . . . . . . 18.1.6 Commands Specific to gnu Hurd Systems . . . . . . . . . . . . . 18.1.7 QNX Neutrino . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.2 Embedded Operating Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.2.1 Using gdb with VxWorks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.2.1.1 Connecting to VxWorks . . . . . . . . . . . . . . . . . . . . . . . . . 18.2.1.2 VxWorks Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.2.1.3 Running Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3 Embedded Processors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.1 ARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.2 Renesas M32R/D and M32R/SDI . . . . . . . . . . . . . . . . . . . . . 18.3.3 M68k . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.4 MIPS Embedded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.5 OpenRISC 1000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.6 PowerPC Embedded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.7 HP PA Embedded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.8 Tsqware Sparclet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.8.1 Setting File to Debug . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.8.2 Connecting to Sparclet . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.8.3 Sparclet Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.8.4 Running and Debugging . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.9 Fujitsu Sparclite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.10 Zilog Z8000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 185 185 185 187 189 190 190 191 192 194 194 194 195 195 196 196 196 198 199 199 201 203 204 204 204 205 205 205 205 205 vi Debugging with gdb 18.3.11 Atmel AVR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.12 CRIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.3.13 Renesas Super-H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.4 Architectures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.4.1 x86 Architecture-specific Issues . . . . . . . . . . . . . . . . . . . . . . . 18.4.2 A29K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.4.3 Alpha . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.4.4 MIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.4.5 HPPA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.4.6 Cell Broadband Engine SPU architecture . . . . . . . . . . . . . . 18.4.7 PowerPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Controlling gdb . . . . . . . . . . . . . . . . . . . . . . . . 211 19.1 19.2 19.3 19.4 19.5 19.6 19.7 19.8 20 206 206 207 207 207 207 207 208 209 209 210 Prompt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Command Editing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Command History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Screen Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Configuring the Current ABI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Optional Warnings and Messages . . . . . . . . . . . . . . . . . . . . . . . . . . Optional Messages about Internal Happenings . . . . . . . . . . . . . . 211 211 211 213 214 214 215 217 Canned Sequences of Commands . . . . . . . . 221 20.1 20.2 20.3 20.4 User-defined Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . User-defined Command Hooks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Command Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Commands for Controlled Output . . . . . . . . . . . . . . . . . . . . . . . . . 221 222 223 224 21 Command Interpreters . . . . . . . . . . . . . . . . . . 227 22 gdb Text User Interface . . . . . . . . . . . . . . . . . 229 22.1 22.2 22.3 22.4 22.5 23 TUI Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TUI Key Bindings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TUI Single Key Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TUI-specific Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TUI Configuration Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229 230 231 231 233 Using gdb under gnu Emacs . . . . . . . . . . . . 235 vii 24 The gdb/mi Interface . . . . . . . . . . . . . . . . . . . 237 Function and Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Notation and Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.3 gdb/mi Command Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.3.1 gdb/mi Input Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.3.2 gdb/mi Output Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.4 gdb/mi Compatibility with CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.5 gdb/mi Development and Front Ends . . . . . . . . . . . . . . . . . . . . . 24.6 gdb/mi Output Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.6.1 gdb/mi Result Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.6.2 gdb/mi Stream Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.6.3 gdb/mi Async Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.7 Simple Examples of gdb/mi Interaction. . . . . . . . . . . . . . . . . . . . 24.8 gdb/mi Command Description Format . . . . . . . . . . . . . . . . . . . . 24.9 gdb/mi Breakpoint Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.10 gdb/mi Program Context . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.11 gdb/mi Thread Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.12 gdb/mi Program Execution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.13 gdb/mi Stack Manipulation Commands . . . . . . . . . . . . . . . . . . 24.14 gdb/mi Variable Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.15 gdb/mi Data Manipulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.16 gdb/mi Tracepoint Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.17 gdb/mi Symbol Query Commands . . . . . . . . . . . . . . . . . . . . . . . 24.18 gdb/mi File Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.19 gdb/mi Target Manipulation Commands . . . . . . . . . . . . . . . . . 24.20 gdb/mi File Transfer Commands . . . . . . . . . . . . . . . . . . . . . . . . . 24.21 Miscellaneous gdb/mi Commands . . . . . . . . . . . . . . . . . . . . . . . . 25 gdb Annotations . . . . . . . . . . . . . . . . . . . . . . . 293 25.1 25.2 25.3 25.4 25.5 25.6 25.7 26 237 237 237 237 238 240 240 240 240 241 241 242 243 244 251 254 255 261 265 271 277 277 280 283 287 288 What is an Annotation? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The Server Prefix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Annotation for gdb Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Invalidation Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Running the Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Displaying Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293 294 294 294 295 295 296 Reporting Bugs in gdb . . . . . . . . . . . . . . . . . . 297 26.1 Have You Found a Bug? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297 26.2 How to Report Bugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297 viii Debugging with gdb 27 Command Line Editing . . . . . . . . . . . . . . . . . 301 27.1 Introduction to Line Editing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.2 Readline Interaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.2.1 Readline Bare Essentials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.2.2 Readline Movement Commands . . . . . . . . . . . . . . . . . . . . . . . 27.2.3 Readline Killing Commands . . . . . . . . . . . . . . . . . . . . . . . . . . 27.2.4 Readline Arguments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.2.5 Searching for Commands in the History . . . . . . . . . . . . . . . 27.3 Readline Init File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.3.1 Readline Init File Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.3.2 Conditional Init Constructs . . . . . . . . . . . . . . . . . . . . . . . . . . 27.3.3 Sample Init File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.4 Bindable Readline Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.4.1 Commands For Moving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.4.2 Commands For Manipulating The History . . . . . . . . . . . . . 27.4.3 Commands For Changing Text . . . . . . . . . . . . . . . . . . . . . . . 27.4.4 Killing And Yanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.4.5 Specifying Numeric Arguments . . . . . . . . . . . . . . . . . . . . . . . 27.4.6 Letting Readline Type For You . . . . . . . . . . . . . . . . . . . . . . . 27.4.7 Keyboard Macros . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.4.8 Some Miscellaneous Commands . . . . . . . . . . . . . . . . . . . . . . . 27.5 Readline vi Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 301 301 301 302 302 303 303 304 304 309 310 313 313 313 315 316 317 317 317 318 319 Using History Interactively . . . . . . . . . . . . . . 321 28.1 History Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28.1.1 Event Designators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28.1.2 Word Designators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28.1.3 Modifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321 321 321 322 Appendix A Formatting Documentation . . . . 325 Appendix B Installing gdb . . . . . . . . . . . . . . . . 327 B.1 B.2 B.3 B.4 B.5 Requirements for Building gdb . . . . . . . . . . . . . . . . . . . . . . . . . . . . Invoking the gdb ‘configure’ Script . . . . . . . . . . . . . . . . . . . . . . . Compiling gdb in Another Directory . . . . . . . . . . . . . . . . . . . . . . . Specifying Names for Hosts and Targets . . . . . . . . . . . . . . . . . . . . ‘configure’ Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix C 327 327 329 330 330 Maintenance Commands . . . . . . 333 ix Appendix D gdb Remote Serial Protocol . . . 339 D.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.2 Packets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.3 Stop Reply Packets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.4 General Query Packets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.5 Register Packet Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.6 Tracepoint Packets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.7 Host I/O Packets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.8 Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.9 Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.10 File-I/O Remote Protocol Extension . . . . . . . . . . . . . . . . . . . . . . D.10.1 File-I/O Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.10.2 Protocol Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.10.3 The F Request Packet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.10.4 The F Reply Packet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.10.5 The ‘Ctrl-C’ Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.10.6 Console I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.10.7 List of Supported Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . close . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . lseek . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . rename . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . unlink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . stat/fstat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . gettimeofday . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . isatty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.10.8 Protocol-specific Representation of Datatypes . . . . . . . . . Integral Datatypes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pointer Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Memory Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . struct stat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . struct timeval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.10.9 Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Open Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . mode t Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Errno Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lseek Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.10.10 File-I/O Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.11 Library List Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.12 Memory Map Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339 340 347 348 358 358 360 362 362 363 363 363 364 364 365 365 365 366 367 367 367 368 368 369 369 370 370 370 371 371 371 372 372 372 373 373 373 373 374 374 374 375 376 x Debugging with gdb Appendix E The GDB Agent Expression Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377 E.1 E.2 E.3 E.4 E.5 E.6 General Bytecode Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bytecode Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using Agent Expressions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Varying Target Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tracing on Symmetrix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rationale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix F 377 379 383 384 384 386 Target Descriptions . . . . . . . . . . . 389 F.1 Retrieving Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F.2 Target Description Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F.2.1 Inclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F.2.2 Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F.2.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F.2.4 Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F.2.5 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F.3 Predefined Target Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F.4 Standard Target Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F.4.1 ARM Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F.4.2 MIPS Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F.4.3 M68K Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F.4.4 PowerPC Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389 390 390 390 391 391 391 392 393 393 393 394 394 Appendix G GNU GENERAL PUBLIC LICENSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395 Preamble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION . . . . . . . . . . . . . . . . . . . 396 How to Apply These Terms to Your New Programs . . . . . . . . . . . . . . . 400 Appendix H GNU Free Documentation License . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401 H.1 ADDENDUM: How to use this License for your documents . . 407 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409 1 Summary of gdb The purpose of a debugger such as gdb is to allow you to see what is going on “inside” another program while it executes—or what another program was doing at the moment it crashed. gdb can do four main kinds of things (plus other things in support of these) to help you catch bugs in the act: • Start your program, specifying anything that might affect its behavior. • Make your program stop on specified conditions. • Examine what has happened, when your program has stopped. • Change things in your program, so you can experiment with correcting the effects of one bug and go on to learn about another. You can use gdb to debug programs written in C and C++. For more information, see Section 12.4 [Supported Languages], page 125. For more information, see Section 12.4.1 [C and C++], page 125. Support for Modula-2 is partial. [Modula-2], page 133. For information on Modula-2, see Section 12.4.5 Debugging Pascal programs which use sets, subranges, file variables, or nested functions does not currently work. gdb does not support entering expressions, printing values, or similar features using Pascal syntax. gdb can be used to debug programs written in Fortran, although it may be necessary to refer to some variables with a trailing underscore. gdb can be used to debug programs written in Objective-C, using either the Ap- ple/NeXT or the GNU Objective-C runtime. Free Software gdb is free software, protected by the gnu General Public License (GPL). The GPL gives you the freedom to copy or adapt a licensed program—but every person getting a copy also gets with it the freedom to modify that copy (which means that they must get access to the source code), and the freedom to distribute further copies. Typical software companies use copyrights to limit your freedoms; the Free Software Foundation uses the GPL to preserve these freedoms. Fundamentally, the General Public License is a license which says that you have these freedoms and that you cannot take these freedoms away from anyone else. Free Software Needs Free Documentation The biggest deficiency in the free software community today is not in the software—it is the lack of good free documentation that we can include with the free software. Many of our most important programs do not come with free reference manuals and free introductory texts. Documentation is an essential part of any software package; when an important free software package does not come with a free manual and a free tutorial, that is a major gap. We have many such gaps today. 2 Debugging with gdb Consider Perl, for instance. The tutorial manuals that people normally use are non-free. How did this come about? Because the authors of those manuals published them with restrictive terms—no copying, no modification, source files not available—which exclude them from the free software world. That wasn’t the first time this sort of thing happened, and it was far from the last. Many times we have heard a GNU user eagerly describe a manual that he is writing, his intended contribution to the community, only to learn that he had ruined everything by signing a publication contract to make it non-free. Free documentation, like free software, is a matter of freedom, not price. The problem with the non-free manual is not that publishers charge a price for printed copies—that in itself is fine. (The Free Software Foundation sells printed copies of manuals, too.) The problem is the restrictions on the use of the manual. Free manuals are available in source code form, and give you permission to copy and modify. Non-free manuals do not allow this. The criteria of freedom for a free manual are roughly the same as for free software. Redistribution (including the normal kinds of commercial redistribution) must be permitted, so that the manual can accompany every copy of the program, both on-line and on paper. Permission for modification of the technical content is crucial too. When people mod- ify the software, adding or changing features, if they are conscientious they will change the manual too—so they can provide accurate and clear documentation for the modified program. A manual that leaves you no choice but to write a new manual to document a changed version of the program is not really available to our community. Some kinds of limits on the way modification is handled are acceptable. For example, requirements to preserve the original author’s copyright notice, the distribution terms, or the list of authors, are ok. It is also no problem to require modified versions to include notice that they were modified. Even entire sections that may not be deleted or changed are acceptable, as long as they deal with nontechnical topics (like this one). These kinds of restrictions are acceptable because they don’t obstruct the community’s normal use of the manual. However, it must be possible to modify all the technical content of the manual, and then distribute the result in all the usual media, through all the usual channels. Otherwise, the restrictions obstruct the use of the manual, it is not free, and we need another manual to replace it. Please spread the word about this issue. Our community continues to lose manuals to proprietary publishing. If we spread the word that free software needs free reference manuals and free tutorials, perhaps the next person who wants to contribute by writing documentation will realize, before it is too late, that only free manuals contribute to the free software community. If you are writing documentation, please insist on publishing it under the GNU Free Documentation License or another free documentation license. Remember that this deci- sion requires your approval—you don’t have to let the publisher decide. Some commercial publishers will use a free license if you insist, but they will not propose the option; it is up to you to raise the issue and say firmly that this is what you want. If the publisher you are dealing with refuses, please try other publishers. If you’re not sure whether a proposed license is free, write to licensing@gnu.org. 3 You can encourage commercial publishers to sell more free, copylefted manuals and tutorials by buying them, and particularly by buying copies from the publishers that paid for their writing or for major improvements. Meanwhile, try to avoid buying non-free documentation at all. Check the distribution terms of a manual before you buy it, and insist that whoever seeks your business must respect your freedom. Check the history of the book, and try to reward the publishers that have paid or pay the authors to work on it. The Free Software Foundation maintains a list of free documentation published by other publishers, at http://www.fsf.org/doc/other-free-books.html. Contributors to gdb Richard Stallman was the original author of gdb, and of many other gnu programs. Many others have contributed to its development. This section attempts to credit major contrib- utors. One of the virtues of free software is that everyone is free to contribute to it; with regret, we cannot actually acknowledge everyone here. The file ‘ChangeLog’ in the gdb distribution approximates a blow-by-blow account. Changes much prior to version 2.0 are lost in the mists of time. Plea: Additions to this section are particularly welcome. If you or your friends (or enemies, to be evenhanded) have been unfairly omitted from this list, we would like to add your names! So that they may not regard their many labors as thankless, we particularly thank those who shepherded gdb through major releases: Andrew Cagney (releases 6.3, 6.2, 6.1, 6.0, 5.3, 5.2, 5.1 and 5.0); Jim Blandy (release 4.18); Jason Molenda (release 4.17); Stan Shebs (release 4.14); Fred Fish (releases 4.16, 4.15, 4.13, 4.12, 4.11, 4.10, and 4.9); Stu Grossman and John Gilmore (releases 4.8, 4.7, 4.6, 4.5, and 4.4); John Gilmore (releases 4.3, 4.2, 4.1, 4.0, and 3.9); Jim Kingdon (releases 3.5, 3.4, and 3.3); and Randy Smith (releases 3.2, 3.1, and 3.0). Richard Stallman, assisted at various times by Peter TerMaat, Chris Hanson, and Richard Mlynarik, handled releases through 2.8. Michael Tiemann is the author of most of the gnu C++ support in gdb, with significant additional contributions from Per Bothner and Daniel Berlin. James Clark wrote the gnu C++ demangler. Early work on C++ was by Peter TerMaat (who also did much general update work leading to release 3.0). gdb uses the BFD subroutine library to examine multiple object-file formats; BFD was a joint project of David V. Henkel-Wallace, Rich Pixley, Steve Chamberlain, and John Gilmore. David Johnson wrote the original COFF support; Pace Willison did the original support for encapsulated COFF. Brent Benson of Harris Computer Systems contributed DWARF 2 support. Adam de Boor and Bradley Davis contributed the ISI Optimum V support. Per Bothner, Noboyuki Hikichi, and Alessandro Forin contributed MIPS support. Jean-Daniel Fekete contributed Sun 386i support. Chris Hanson improved the HP9000 support. Noboyuki Hikichi and Tomoyuki Hasei contributed Sony/News OS 3 support. David Johnson con- tributed Encore Umax support. Jyrki Kuoppala contributed Altos 3068 support. Jeff Law contributed HP PA and SOM support. Keith Packard contributed NS32K support. 4 Debugging with gdb Doug Rabson contributed Acorn Risc Machine support. Bob Rusk contributed Harris Nighthawk CX-UX support. Chris Smith contributed Convex support (and Fortran de- bugging). Jonathan Stone contributed Pyramid support. Michael Tiemann contributed SPARC support. Tim Tucker contributed support for the Gould NP1 and Gould Powern- ode. Pace Willison contributed Intel 386 support. Jay Vosburgh contributed Symmetry support. Marko Mlinar contributed OpenRISC 1000 support. Andreas Schwab contributed M68K gnu/Linux support. Rich Schaefer and Peter Schauer helped with support of SunOS shared libraries. Jay Fenlason and Roland McGrath ensured that gdb and GAS agree about several machine instruction sets. Patrick Duval, Ted Goldstein, Vikram Koka and Glenn Engel helped develop remote debugging. Intel Corporation, Wind River Systems, AMD, and ARM contributed remote debugging modules for the i960, VxWorks, A29K UDI, and RDI targets, respectively. Brian Fox is the author of the readline libraries providing command-line editing and command history. Andrew Beers of SUNY Buffalo wrote the language-switching code, the Modula-2 sup- port, and contributed the Languages chapter of this manual. Fred Fish wrote most of the support for Unix System Vr4. He also enhanced the command-completion support to cover C++ overloaded symbols. Hitachi America (now Renesas America), Ltd. H8/500, and Super-H processors. sponsored the support for H8/300, NEC sponsored the support for the v850, Vr4xxx, and Vr5xxx processors. Mitsubishi (now Renesas) sponsored the support for D10V, D30V, and M32R/D proces- sors. Toshiba sponsored the support for the TX39 Mips processor. Matsushita sponsored the support for the MN10200 and MN10300 processors. Fujitsu sponsored the support for SPARClite and FR30 processors. Kung Hsu, Jeff Law, and Rick Sladkey added support for hardware watchpoints. Michael Snyder added support for tracepoints. Stu Grossman wrote gdbserver. Jim Kingdon, Peter Schauer, Ian Taylor, and Stu Grossman made nearly innumerable bug fixes and cleanups throughout gdb. The following people at the Hewlett-Packard Company contributed support for the PA- RISC 2.0 architecture, HP-UX 10.20, 10.30, and 11.0 (narrow mode), HP’s implementation of kernel threads, HP’s aC++ compiler, and the Text User Interface (nee Terminal User Interface): Ben Krepp, Richard Title, John Bishop, Susan Macchia, Kathy Mann, Satish Pai, India Paul, Steve Rehrauer, and Elena Zannoni. Kim Haase provided HP-specific information in this manual. DJ Delorie ported gdb to MS-DOS, for the DJGPP project. Robert Hoehne made significant contributions to the DJGPP port. Cygnus Solutions has sponsored gdb maintenance and much of its development since 1991. Cygnus engineers who have worked on gdb fulltime include Mark Alexander, Jim 5 Blandy, Per Bothner, Kevin Buettner, Edith Epstein, Chris Faylor, Fred Fish, Martin Hunt, Jim Ingham, John Gilmore, Stu Grossman, Kung Hsu, Jim Kingdon, John Metzler, Fernando Nasser, Geoffrey Noer, Dawn Perchik, Rich Pixley, Zdenek Radouch, Keith Seitz, Stan Shebs, David Taylor, and Elena Zannoni. In addition, Dave Brolley, Ian Carmichael, Steve Chamberlain, Nick Clifton, JT Conklin, Stan Cox, DJ Delorie, Ulrich Drepper, Frank Eigler, Doug Evans, Sean Fagan, David Henkel-Wallace, Richard Henderson, Jeff Holcomb, Jeff Law, Jim Lemke, Tom Lord, Bob Manson, Michael Meissner, Jason Merrill, Catherine Moore, Drew Moseley, Ken Raeburn, Gavin Romig-Koch, Rob Savoye, Jamie Smith, Mike Stump, Ian Taylor, Angela Thomas, Michael Tiemann, Tom Tromey, Ron Unrau, Jim Wilson, and David Zuhn have made contributions both large and small. Andrew Cagney, Fernando Nasser, and Elena Zannoni, while working for Cygnus Solu- tions, implemented the original gdb/mi interface. Jim Blandy added support for preprocessor macros, while working for Red Hat. Andrew Cagney designed gdb’s architecture vector. Many people including Andrew Cagney, Stephane Carrez, Randolph Chung, Nick Duffek, Richard Henderson, Mark Ket- tenis, Grace Sainsbury, Kei Sakamoto, Yoshinori Sato, Michael Snyder, Andreas Schwab, Jason Thorpe, Corinna Vinschen, Ulrich Weigand, and Elena Zannoni, helped with the migration of old architectures to this new framework. Andrew Cagney completely re-designed and re-implemented gdb’s unwinder framework, this consisting of a fresh new design featuring frame IDs, independent frame sniffers, and the sentinel frame. Mark Kettenis implemented the dwarf 2 unwinder, Jeff Johnston the libunwind unwinder, and Andrew Cagney the dummy, sentinel, tramp, and trad unwinders. The architecture-specific changes, each involving a complete rewrite of the architecture’s frame code, were carried out by Jim Blandy, Joel Brobecker, Kevin Buettner, Andrew Cagney, Stephane Carrez, Randolph Chung, Orjan Friberg, Richard Henderson, Daniel Jacobowitz, Jeff Johnston, Mark Kettenis, Theodore A. Roth, Kei Sakamoto, Yoshinori Sato, Michael Snyder, Corinna Vinschen, and Ulrich Weigand. Christian Zankel, Ross Morley, Bob Wilson, and Maxim Grigoriev from Tensilica, Inc. contributed support for Xtensa processors. Others who have worked on the Xtensa port of gdb in the past include Steve Tjiang, John Newlin, and Scott Foehner.

Polycom RealPresence 桌面是一个易于使用的视频协作应用程序, 为 PC 用户提供高清质量的音频, 视频和内容共享。与类似的专有应用程序不同, RealPresence 桌面是基于标准的, 并扩展了组织现有的视频启用网络, 使最终用户能够在办公室内或在路上使用相同的高质量体验。 END USER LICENSE AGREEMENT FOR POLYCOM® SOFTWARE IMPORTANT-READ CAREFULLY BEFORE USING THE SOFTWARE: This End-User License Agreement ("Agreement") is a legal agreement between you and/or any company you represent, “you” and either Polycom (Netherlands) B.V. (if you are located in Europe, Middle East, or Africa), Polycom Asia Pacific PTE Ltd. (if you are located in Asia Pacific), or Polycom, Inc. (if you are located in the rest of the world) (each referred to individually and collectively herein as “POLYCOM”), for the SOFTWARE PRODUCT (as defined below) licensed by POLYCOM or its suppliers. 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"USER" means one individual employee, consultant, contractor, agent or student or one video conferencing device not assigned to a unique individual, within your company or legally recognized entity that is authorized by you to directly or indirectly use the SOFTWARE PRODUCT and to whom you have assigned a unique SOFTWARE PRODUCT user identification and password. A USER license is for an individual or single video conferencing device USER only and cannot be shared or used by more than one individual or multiple video conferencing devices not assigned to a unique individual. USER licenses may be reassigned to new USERs. You are not required to purchase a USER license for GUESTS; however, GUESTS do consume a CONCURRENT CONNECTION license. 3725-50000-001B Release 3/17/2016 C. Additional Terms. Except for Section I & III, all of the terms of this Agreement shall also apply to this Subscription License. III. STANDARD USE/PERPETUAL LICENSE If you have purchased a Standard Use License then this SOFTWARE PRODUCT is licensed to you per the terms set forth below. A. Grant of License. Subject to the terms of this Agreement, POLYCOM grants to you a non-exclusive, non- transferable (except as set forth herein), perpetual (unless otherwise terminated per the terms of this Agreement) license to install and use, on a DEVICE, for personal or internal business purposes the number and type of SOFTWARE PRODUCT licenses listed in your AUTHORIZED PURCHASE ORDER. B. Additional Terms. Except for Sections I & II, all of the terms of this Agreement shall also apply to this Standard Use License. IV. ADDITIONAL TERMS AND CONDITIONS 1. Restrictions 1.1You may use the SOFTWARE PRODUCT pursuant to the license grant above and subject to the following terms and the proprietary notices in the SOFTWARE PRODUCT or on the media upon which the SOFTWARE PRODUCT is provided. You are not permitted to lease, rent, distribute, assign, sell or sublicense the SOFTWARE PRODUCT, in whole or in part, or to use the SOFTWARE PRODUCT in a time-sharing, subscription service, service bureau, hosting or outsourcing arrangement or in any other unauthorized manner. Further, no license is granted to you in the human readable code of the SOFTWARE PRODUCT (source code). Except as expressly provided below, this License Agreement does not grant you any rights to patents, copyrights, trade secrets, trademarks, or any other rights in the SOFTWARE PRODUCT. You are solely responsible for use of the SOFTWARE PRODUCT by your agents, contractors, outsourcers, customers and suppliers and their compliance with this Agreement. 1.2You may not reverse engineer, decompile, modify or disassemble the SOFTWARE PRODUCT or otherwise reduce the SOFTWARE PRODUCT to human-perceivable form in whole or in part, except and only to the extent that such activity is expressly permitted by a third party license or applicable laws (in any instance where the law permits any such action, you agree to provide POLYCOM at least ninety (90) days advance written notice of your belief that such action is warranted and permitted and to provide POLYCOM with an opportunity to evaluate if the law’s requirements necessitate such action). The foregoing includes but is not limited to review of data structures or similar materials produced by SOFTWARE PRODUCT. The SOFTWARE PRODUCT is licensed as a single product. Its component parts may not be separated for use on more than one DEVICE. You may not use the SOFTWARE PRODUCT for any illegal purpose or conduct. 1.3You may not modify, translate or create derivative works of the SOFTWARE PRODUCT. 1.4You may not remove or obscure any proprietary notices, identification, label or trademarks on or in the SOFTWARE PRODUCT or the supporting documentation. 2.Other Rights and Limitations 2.1Back-up. Except as expressly provided for under this Agreement you may not copy the SOFTWARE PRODUCT; except, however, during the term of this Agreement you may keep or POLYCOM may provide one copy of the SOFTWARE PRODUCT and, if applicable, one copy of any previous version, for back-up purposes, only to be used in the event of and during a failure of the original. All copies of the SOFTWARE PRODUCT must be marked with the proprietary notices provided on the original SOFTWARE PRODUCT. You may not reproduce the supporting documentation accompanying the SOFTWARE PRODUCT. 2.2Software Transfer. If you have purchased a Standard Use license, you may permanently transfer all of your rights under this Agreement, solely in connection with transfer of the DEVICE, if applicable, provided you retain no copies, you transfer all of the SOFTWARE PRODUCT (including the media and printed materials, any upgrades or updates, and this Agreement), and the recipient agrees to the terms of this Agreement. If the SOFTWARE PRODUCT is an upgrade or update, any transfer must include all prior versions of the SOFTWARE PRODUCT. However, if the SOFTWARE PRODUCT is marked "Not for Resale" or "NFR", you may not resell it or otherwise transfer it for value. 3725-50000-001B Release 3/17/2016 2.3Copyright. All title and copyrights in and to the SOFTWARE PRODUCT (including but not limited to any images, photographs, animations, video, audio, music, text, programs and "applets" incorporated into the SOFTWARE PRODUCT), the accompanying printed materials, and any copies of the SOFTWARE PRODUCT are owned by POLYCOM or its suppliers. Title, ownership rights, and intellectual property rights in the SOFTWARE PRODUCT shall remain in POLYCOM or its suppliers. Title and related rights in the content accessed through the SOFTWARE PRODUCT is the property of such content owner and may be protected by applicable law. This Agreement gives you no rights in such content. 2.4Confidentiality. The SOFTWARE PRODUCT contains valuable proprietary information and trade secrets of POLYCOM and its suppliers that remain the property of POLYCOM. You shall protect the confidentiality of, and avoid disclosure and unauthorized use of, the SOFTWARE PRODUCT. 2.5Information. Using the SOFTWARE PRODUCT means you consent to the SOFTWARE PRODUCT’s transmission of device information (including but not limited to technical information about your device such as logs, statistics, device states, and IP addresses) to POLYCOM and/or POLYCOM partners. POLYCOM may use such device information, along with all technical information you provide to POLYCOM as part of your use of SOFTWARE PRODUCT or SUPPORT SERVICES, for its business purposes in accordance with POLYCOM’s Privacy Policy located at http://www.polycom.com/company/privacy-policy.html. POLYCOM has no obligation to store your data or information and POLYCOM shall not be liable for any data loss. 2.6Dual-Media Software. You may receive the SOFTWARE PRODUCT in more than one medium. Regardless of the type or size of medium you receive, you may use only one medium that is appropriate for your DEVICE. You may not use or install the other medium on another DEVICE. 2.7Reservation of Rights. POLYCOM and its suppliers reserve all rights in the SOFTWARE PRODUCT not expressly granted to you in this Agreement. 2.8Additional Obligations. You are responsible for all equipment and any third party fees (such as carrier charges, internet fees, or provider or airtime charges) necessary to access the SOFTWARE PRODUCT. 2.9Installation. You acknowledge that installation of the SOFTWARE PRODUCT and, as applicable, use of additional software features may involve a license key that may restrict installation of the SOFTWARE PRODUCT to the SOFTWARE PRODUCT licensed. POLYCOM may also embed algorithms in the SOFTWARE PRODUCT that periodically compare the SOFTWARE PRODUCT licenses enabled against the SOFTWARE PRODUCT licensed. You further acknowledge that the SOFTWARE PRODUCT requires activation on initial installation of the SOFTWARE PRODUCT and future events including, but not limited to, updates and changes to your hardware on which the SOFTWARE PRODUCT is installed. You acknowledge that the license key and internal controls in the SOFTWARE PRODUCT may not restrict usage to the licensed amounts and do not ensure compliance with this Agreement. 3.Support Services POLYCOM may provide you with support services, including support services related to the provisioning and availability of SOFTWARE PRODUCT updates and upgrades, related to the SOFTWARE PRODUCT ("SUPPORT SERVICES"). Unless otherwise agreed in writing by POLYCOM, Use of SUPPORT SERVICES and any supplemental software code provided to you as part of the SUPPORT SERVICES is governed by the terms and conditions of POLYCOM's Worldwide Service Program for End User Customers and the applicable Service Description. 4. Term, Termination and Survival This Agreement is in effect from the date of download of the SOFTWARE PRODUCT through the period in the applicable license grant as set forth above. This Agreement will terminate automatically if you fail to comply with any of the terms and conditions of this Agreement. POLYCOM shall have the right to audit your use of the SOFTWARE PRODUCT in conjunction with this Agreement, and you will provide reasonable assistance for this purpose. In the event of any termination, you must cease use of the SOFTWARE PRODUCT, and destroy all copies of the SOFTWARE PRODUCT and all of its component parts. You may terminate this Agreement at any time by destroying the SOFTWARE PRODUCT and all of its component parts. Termination of this Agreement shall not prevent POLYCOM or its suppliers from claiming any further damages. If you do not comply with any of the above restrictions, this license will terminate and you will be liable to POLYCOM and its suppliers for damages or losses 3725-50000-001B Release 3/17/2016 caused by your non-compliance. The waiver by POLYCOM of a specific breach or default shall not constitute the waiver of any subsequent breach or default. The following provisions shall survive the expiration or termination of this Agreement: Sections IV.1 (Restrictions), IV.2 (Other Rights and Limitations), IV.5 (Term, Termination and Survival), IV.7 (Limitation of Liability), IV.8 (Indemnity), IV.9 (Disclaimer), IV.10 (Export Controls), and IV.11 (Miscellaneous). 5. Upgrades If the SOFTWARE PRODUCT is labeled as an upgrade or update, you must be properly licensed to use the software identified by POLYCOM as being eligible for the upgrade or update in order to use the SOFTWARE PRODUCT. A SOFTWARE PRODUCT labeled as an upgrade or update replaces and/or supplements the software that formed the basis for your eligibility for the upgrade or update. You may use the resulting upgraded/updated SOFTWARE PRODUCT only in accordance with the terms of this Agreement. If the SOFTWARE PRODUCT is an upgrade or update of a component of a package of software programs that you licensed as a single product, the SOFTWARE PRODUCT may be used and transferred only as part of that single SOFTWARE PRODUCT package and may not be separated for use on more than one DEVICE. 6. Warranty and Warranty Exclusions 6.1Limited Warranty. Except as otherwise set forth in a Third Party License or in third party license terms set forth below, POLYCOM warrants that (a) the SOFTWARE PRODUCT will perform substantially in accordance with the accompanying documentation for a period of ninety (90) days from the date of shipment by POLYCOM or the SOFTWARE PRODUCT is initially downloaded by you, as applicable, and (b) any SUPPORT SERVICES provided by POLYCOM shall be substantially as described in applicable written materials provided to you by POLYCOM. This warranty is valid only for the original purchaser. POLYCOM DOES NOT WARRANT THAT YOUR USE OF THE SOFTWARE PRODUCT WILL BE UNINTERRUPTED OR ERROR FREE, OR THAT ALL DEFECTS IN THE SOFTWARE PRODUCT WILL BE CORRECTED. YOU ASSUME FULL RESPONSIBILITY FOR THE SELECTION OF THE SOFTWARE PRODUCT TO ACHIEVE YOUR INTENDED RESULTS AND FOR THE INSTALLATION, USE AND RESULTS OBTAINED FROM THE SOFTWARE PRODUCT. IF THE SOFTWARE PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, POLYCOM'S SOLE OBLIGATION UNDER THIS EXPRESS WARRANTY SHALL BE, AT POLYCOM'S OPTION AND EXPENSE, TO REPAIR OR REPLACE THE DEFECTIVE SOFTWARE, OR IF NEITHER OF THE TWO FOREGOING OPTIONS IS REASONABLY AVAILABLE, POLYCOM MAY, IN ITS SOLE DISCRETION REFUND TO YOU THE PURCHASE PRICE PAID FOR THE DEFECTIVE PRODUCT. Any replacement SOFTWARE PRODUCT will substantially conform to the accompanying documentation and be warranted for the remainder of the original warranty period or thirty (30) days, whichever is longer. 6.2Warranties Exclusive. TO THE FULL EXTENT ALLOWED BY LAW, THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES, TERMS, OR CONDITIONS, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE, INCLUDING WARRANTIES, TERMS, OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, SATISFACTORY QUALITY, CORRESPONDENCE WITH DESCRIPTION, AND NON- INFRINGEMENT, ALL OF WHICH ARE EXPRESSLY DISCLAIMED. POLYCOM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE OR USE OF THE SOFTWARE PRODUCT. NO ADVICE OR INFORMATION, WHETHER ORAL OR WRITTEN, OBTAINED BY YOU FROM POLYCOM OR THROUGH OR FROM THE SOFTWARE PRODUCT SHALL CREATE ANY WARRANTY NOT EXPRESSLY STATED IN THIS AGREEMENT. NEITHER POLYCOM NOR ITS SUPPLIERS SHALL BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT OR MALFUNCTION IN THE SOFTWARE PRODUCT DOES NOT EXIST OR WAS CAUSED BY YOUR OR ANY THIRD PARTY'S MISUSE, NEGLECT, IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO MODIFY THE SOFTWARE PRODUCT, OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING, POWER CUTS OR OUTAGES, OTHER HAZARDS, OR ACTS OF GOD. 7. Limitation of Liability YOUR USE OF THE SOFTWARE PRODUCT IS AT YOUR SOLE RISK. YOU WILL BE SOLELY RESPONSIBLE FOR ANY DAMAGE TO YOUR COMPUTER SYSTEM OR LOSS OF DATA THAT RESULTS FROM THE DOWNLOAD OR USE OF THE SOFTWARE PRODUCT. TO THE MAXIMUM EXTENT PERMITTED BY 3725-50000-001B Release 3/17/2016 APPLICABLE LAW, IN NO EVENT SHALL POLYCOM OR ITS SUPPLIERS BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION DAMAGES FOR LOSS OF BUSINESS PROFITS OR REVENUE; BUSINESS INTERRUPTION OR WORK STOPPAGE; COMPUTER FAILURE OR MALFUNCTION; LOSS OF BUSINESS INFORMATION, DATA OR DATA USE; LOSS OF GOODWILL; OR ANY OTHER PECUNIARY LOSS) ARISING OUT OF THE USE OF OR INABILITY TO USE THE SOFTWARE PRODUCT OR THE PROVISION OF OR FAILURE TO PROVIDE SUPPORT SERVICES, EVEN IF POLYCOM OR ITS SUPPLIER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL POLYCOM’S SUPPLIERS BE LIABLE FOR ANY DIRECT DAMAGES WHATSOEVER ARISING OUT OF THE USE OR THE INABILITY TO USE THE SOFTWARE PRODUCT. IN ANY CASE, POLYCOM'S ENTIRE LIABILITY SHALL BE LIMITED TO THE GREATER OF THE AMOUNT ACTUALLY PAID BY YOU FOR THE SOFTWARE PRODUCT OR U.S. $1.00. NOTWITHSTANDING THE TERMS OF THIS SECTION 7, IF YOU HAVE ENTERED INTO A POLYCOM SUPPORT SERVICES AGREEMENT, POLYCOM'S ENTIRE LIABILITY REGARDING SUPPORT SERVICES SHALL BE GOVERNED BY THE TERMS OF THAT AGREEMENT. 8. Indemnity You agree to indemnify and hold harmless POLYCOM and its subsidiaries, affiliates, officers, agents, co-branders,customers, suppliers or other partners, and employees, from any loss, claim or demand, including reasonable attorneys' fees, made by any third party due to or arising out of your use of the SOFTWARE PRODUCT, your connection to the SOFTWARE PRODUCT, or your violation of the Terms. 9. Disclaimers 9.1Local Laws. Some countries, states, or provinces do not allow the exclusion or limitation of implied warranties or the limitation of incidental or consequential damages for certain products supplied to consumers, or the limitation of liability for death or personal injury, so the above limitations and exclusions may be limited in their application to you. When the implied warranties are not allowed to be excluded in their entirety due to local law, they will be limited to the duration of the applicable warranty. 9.2Quality. POLYCOM cannot guarantee that the SOFTWARE PRODUCT will always function without disruptions, delay or errors. A number of factors may impact the quality of your communications and use of the SOFTWARE PRODUCT, and may result in the failure of your communications including but not limited to: your local network, firewall, your internet service provider, the public internet, the public switched telephone network and your power supply. POLYCOM takes no responsibility for any disruption, interruption or delay caused by any failure of or inadequacy in any of these items or any other items over which we have no control. 9.3High Risk Use. The SOFTWARE PRODUCT is not fault-tolerant and is not designed or intended for use in hazardous environments requiring fail-safe performance or any application in which the failure of the SOFTWARE PRODUCT could lead directly to death, personal injury, or severe physical or property damage (collectively, "High Risk Use"). Because the SOFTWARE PRODUCT is not guaranteed to function without disruptions, delay or errors (see section 9.2, above), the SOFTWARE PRODUCT should never be utilized as the sole means of communication in High Risk Use. You assume full responsibility for the selection of the SOFTWARE PRODUCT for High Risk Use. POLYCOM AND ITS SUPPLIERS EXPRESSLY DISCLAIM ANY EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK USE. 10. Export Controls You acknowledge that the SOFTWARE PRODUCT may be subject to export and/or import laws and regulations of various countries, including but not limited to the US Export Administration Regulations, restricting the download, transfer, reexport, sale and import of the SOFTWARE PRODUCT to certain countries and persons. You further acknowledge that the SOFTWARE PRODUCT may include encryption/decryption features subject to licensing restrictions under US and other applicable laws for export, re-export, import or in-country transfer. You shall fully comply with all applicable export license restrictions and requirements as well as with all laws and regulations relating to the importation of the SOFTWARE PRODUCT, in the United States and in any foreign jurisdiction into which the SOFTWARE PRODUCT is downloaded or used. Without limiting the foregoing, the SOFTWARE PRODUCT may not be downloaded or otherwise exported or re-exported (i) into (or to a national or resident of, other than a national lawfully admitted for permanent residence in third-countries) Cuba, Iran, North Korea, Sudan, Syria or any other country against which the U.S. maintains comprehensive country-wide sanctions from time to time; (ii) any end user known, or having reason to be known, will utilize them in the design, development or production of nuclear, chemical or biological weapons; or (iii) to any restricted party identified on the U.S. Treasury Department's list of Specially Designated Nationals, the U.S. Commerce Department's Denied Persons List, Entity 3725-50000-001B Release 3/17/2016 List or Unverified List as in force from time to time (see: http://www.bis.doc.gov/complianceandenforcement/liststocheck.htm). By downloading or using the SOFTWARE PRODUCT, you are agreeing to the foregoing and you are representing and warranting that you are not located in, under the control of, acting on behalf of, or a national or resident of any such country or on any such list. If you obtained this SOFTWARE PRODUCT outside of the United States, you are also agreeing that you will not export or re-export it in violation of the laws of the country in which it was obtained including but not limited to export and sanctions laws. 11. Miscellaneous 11.1Governing Law. This Agreement shall be governed by the laws of the State of California, without reference to conflict of laws principles and any disputes will be subject to the exclusive jurisdiction of the Superior Court of Santa Clara County and/or the United States District Court for the Northern District of California. The losing party in any dispute will pay all court costs and legal fees finally awarded. . The United Nations Convention on Contracts for the International Sale of Goods (1980) and the Uniform Computer Information Transactions Act (UCITA) are hereby excluded in their entirety from application to this Agreement. 11.2Entire Agreement. This Agreement represents the complete agreement concerning the SOFTWARE PRODUCT and may be amended only by a writing executed by both parties. If any provision of this Agreement is held to be unenforceable, such provision shall be reformed only to the extent necessary to make it enforceable. 11.3Contact. If you have any questions concerning this Agreement, or if you desire to contact POLYCOM for any reason, please contact the POLYCOM office serving your country. 11.4U.S. Government Restricted Rights. The software and documentation provided by POLYCOM pursuant to this Agreement are “Commercial Items,” as the term is defined at 48 C.F.R. §2.101, consisting of “Commercial Computer Software” and “Commercial Computer Software Documentation,” as such terms are used in 48 C.F.R. §12.212 or 48 C.F.R. §227.7202, as applicable. Consistent with 48 C.F.R. §12.212 or 48 C.F.R. §§227.7202-1through 227.7202-4, as applicable, the Commercial Computer Software and Commercial Computer Software Documentation are licensed to United States Government end users (1) only as Commercial Items and (2) with only those rights as are granted to all other users pursuant to the terms of this Agreement. 11.5Third Party Software. The SOFTWARE PRODUCT may be distributed with software governed by licenses from third parties (“Third Party Software” and “Third Party License”). Any Third Party Software is licensed to you subject to the terms and conditions of this Agreement, notwithstanding anything to the contrary in this Agreement, the corresponding Third Party License. More information on Third Party Licenses terms applicable to the SOFTWARE PRODUCT can be found in the documentation for each SOFTWARE PRODUCT and at http://documents.polycom.com/indexes/licenses. POLYCOM makes no separate representation or warranty concerning Third Party Software and shall have no obligation or liability with respect to Third Party Software. If the Third Party Licenses include licenses that provide for the availability of source code and the corresponding source code is not included with the SOFTWARE PRODUCT, then check the documentation supplied with each SOFTWARE PRODUCT to learn how to obtain such source code. 11.6Translations. This Agreement may have been translated into various languages for the convenience of POLYCOM’s customers. While the translation is correct to the best of POLYCOM’s knowledge, POLYCOM is not responsible or liable in the event of an inaccuracy. English is the controlling language of this Agreement, and any translation has been prepared for you as a courtesy only. In the event of a conflict between the English-languageversion of this Agreement and a version that has been translated into another language, the English-languageversion of this Agreement shall control. 11.7Application Programming Interfaces (API). To the extent the SOFTWARE PRODUCT includes APIs, you agree that your access and use of the APIs will be governed by the terms of the current “Application Programming Interfaces License Agreement” located at www.support.polycom.com. BY INSTALLING, COPYING, OR OTHERWISE USING THIS SOFTWARE PRODUCT YOU ACKNOWLEDGE THAT YOU HAVE READ, UNDERSTAND AND AGREE TO BE BOUND BY THESE TERMS AND CONDITIONS. Polycom, Inc. © 2015. ALL RIGHTS RESERVED. 6001 America Center Drive San Jose, CA 95002 U.S.A. 3725-50000-001B Release 3/17/2016

[PHP] ;;;;;;;;;;;;;;;;;;; ; About php.ini ; ;;;;;;;;;;;;;;;;;;; ; PHP's initialization file, generally called php.ini, is responsible for ; configuring many of the aspects of PHP's behavior. ; PHP attempts to find and load this configuration from a number of locations. ; The following is a summary of its search order: ; 1. SAPI module specific location. ; 2. The PHPRC environment variable. (As of PHP 5.2.0) ; 3. A number of predefined registry keys on Windows (As of PHP 5.2.0) ; 4. Current working directory (except CLI) ; 5. The web server's directory (for SAPI modules), or directory of PHP ; (otherwise in Windows) ; 6. The directory from the --with-config-file-path compile time option, or the ; Windows directory (C:\windows or C:\winnt) ; See the PHP docs for more specific information. ; http://php.net/configuration.file ; The syntax of the file is extremely simple. Whitespace and lines ; beginning with a semicolon are silently ignored (as you probably guessed). ; Section headers (e.g. [Foo]) are also silently ignored, even though ; they might mean something in the future. ; Directives following the section heading [PATH=/www/mysite] only ; apply to PHP files in the /www/mysite directory. Directives ; following the section heading [HOST=www.example.com] only apply to ; PHP files served from www.example.com. Directives set in these ; special sections cannot be overridden by user-defined INI files or ; at runtime. Currently, [PATH=] and [HOST=] sections only work under ; CGI/FastCGI. ; http://php.net/ini.sections ; Directives are specified using the following syntax: ; directive = value ; Directive names are *case sensitive* - foo=bar is different from FOO=bar. ; Directives are variables used to configure PHP or PHP extensions. ; There is no name validation. If PHP can't find an expected ; directive because it is not set or is mistyped, a default value will be used. ; The value can be a string, a number, a PHP constant (e.g. E_ALL or M_PI), one ; of the INI constants (On, Off, True, False, Yes, No and None) or an expression ; (e.g. E_ALL & ~E_NOTICE), a quoted string ("bar"), or a reference to a ; previously set variable or directive (e.g. ${foo}) ; Expressions in the INI file are limited to bitwise operators and parentheses: ; | bitwise OR ; ^ bitwise XOR ; & bitwise AND ; ~ bitwise NOT ; ! boolean NOT ; Boolean flags can be turned on using the values 1, On, True or Yes. ; They can be turned off using the values 0, Off, False or No. ; An empty string can be denoted by simply not writing anything after the equal ; sign, or by using the None keyword: ; foo = ; sets foo to an empty string ; foo = None ; sets foo to an empty string ; foo = "None" ; sets foo to the string 'None' ; If you use constants in your value, and these constants belong to a ; dynamically loaded extension (either a PHP extension or a Zend extension), ; you may only use these constants *after* the line that loads the extension. ;;;;;;;;;;;;;;;;;;; ; About this file ; ;;;;;;;;;;;;;;;;;;; ; PHP comes packaged with two INI files. One that is recommended to be used ; in production environments and one that is recommended to be used in ; development environments. ; php.ini-production contains settings which hold security, performance and ; best practices at its core. But please be aware, these settings may break ; compatibility with older or less security conscience applications. We ; recommending using the production ini in production and testing environments. ; php.ini-development is very similar to its production variant, except it's ; much more verbose when it comes to errors. We recommending using the ; development version only in development environments as errors shown to ; application users can inadvertently leak otherwise secure information. ; This is php.ini-development INI file. ;;;;;;;;;;;;;;;;;;; ; Quick Reference ; ;;;;;;;;;;;;;;;;;;; ; The following are all the settings which are different in either the production ; or development versions of the INIs with respect to PHP's default behavior. ; Please see the actual settings later in the document for more details as to why ; we recommend these changes in PHP's behavior. ; display_errors ; Default Value: On ; Development Value: On ; Production Value: Off ; display_startup_errors ; Default Value: Off ; Development Value: On ; Production Value: Off ; error_reporting ; Default Value: E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED ; Development Value: E_ALL ; Production Value: E_ALL & ~E_DEPRECATED & ~E_STRICT ; html_errors ; Default Value: On ; Development Value: On ; Production value: On ; log_errors ; Default Value: Off ; Development Value: On ; Production Value: On ; max_input_time ; Default Value: -1 (Unlimited) ; Development Value: 60 (60 seconds) ; Production Value: 60 (60 seconds) ; output_buffering ; Default Value: Off ; Development Value: 4096 ; Production Value: 4096 ; register_argc_argv ; Default Value: On ; Development Value: Off ; Production Value: Off ; request_order ; Default Value: None ; Development Value: "GP" ; Production Value: "GP" ; session.gc_divisor ; Default Value: 100 ; Development Value: 1000 ; Production Value: 1000 ; session.hash_bits_per_character ; Default Value: 4 ; Development Value: 5 ; Production Value: 5 ; short_open_tag ; Default Value: On ; Development Value: Off ; Production Value: Off ; track_errors ; Default Value: Off ; Development Value: On ; Production Value: Off ; url_rewriter.tags ; Default Value: "a=href,area=href,frame=src,form=,fieldset=" ; Development Value: "a=href,area=href,frame=src,input=src,form=fakeentry" ; Production Value: "a=href,area=href,frame=src,input=src,form=fakeentry" ; variables_order ; Default Value: "EGPCS" ; Development Value: "GPCS" ; Production Value: "GPCS" ;;;;;;;;;;;;;;;;;;;; ; php.ini Options ; ;;;;;;;;;;;;;;;;;;;; ; Name for user-defined php.ini (.htaccess) files. Default is ".user.ini" ;user_ini.filename = ".user.ini" ; To disable this feature set this option to empty value ;user_ini.filename = ; TTL for user-defined php.ini files (time-to-live) in seconds. Default is 300 seconds (5 minutes) ;user_ini.cache_ttl = 300 ;;;;;;;;;;;;;;;;;;;; ; Language Options ; ;;;;;;;;;;;;;;;;;;;; ; Enable the PHP scripting language engine under Apache. ; http://php.net/engine engine = On ; This directive determines whether or not PHP will recognize code between ; tags as PHP source which should be processed as such. It is ; generally recommended that should be used and that this feature ; should be disabled, as enabling it may result in issues when generating XML ; documents, however this remains supported for backward compatibility reasons. ; Note that this directive does not control the tags. ; http://php.net/asp-tags asp_tags = Off ; The number of significant digits displayed in floating point numbers. ; http://php.net/precision precision = 14 ; Output buffering is a mechanism for controlling how much output data ; (excluding headers and cookies) PHP should keep internally before pushing that ; data to the client. If your application's output exceeds this setting, PHP ; will send that data in chunks of roughly the size you specify. ; Turning on this setting and managing its maximum buffer size can yield some ; interesting side-effects depending on your application and web server. ; You may be able to send headers and cookies after you've already sent output ; through print or echo. You also may see performance benefits if your server is ; emitting less packets due to buffered output versus PHP streaming the output ; as it gets it. On production servers, 4096 bytes is a good setting for performance ; reasons. ; Note: Output buffering can also be controlled via Output Buffering Control ; functions. ; Possible Values: ; On = Enabled and buffer is unlimited. (Use with caution) ; Off = Disabled ; Integer = Enables the buffer and sets its maximum size in bytes. ; Note: This directive is hardcoded to Off for the CLI SAPI ; Default Value: Off ; Development Value: 4096 ; Production Value: 4096 ; http://php.net/output-buffering output_buffering = 4096 ; You can redirect all of the output of your scripts to a function. For ; example, if you set output_handler to "mb_output_handler", character ; encoding will be transparently converted to the specified encoding. ; Setting any output handler automatically turns on output buffering. ; Note: People who wrote portable scripts should not depend on this ini ; directive. Instead, explicitly set the output handler using ob_start(). ; Using this ini directive may cause problems unless you know what script ; is doing. ; Note: You cannot use both "mb_output_handler" with "ob_iconv_handler" ; and you cannot use both "ob_gzhandler" and "zlib.output_compression". ; Note: output_handler must be empty if this is set 'On' !!!! ; Instead you must use zlib.output_handler. ; http://php.net/output-handler ;output_handler = ; Transparent output compression using the zlib library ; Valid values for this option are 'off', 'on', or a specific buffer size ; to be used for compression (default is 4KB) ; Note: Resulting chunk size may vary due to nature of compression. PHP ; outputs chunks that are few hundreds bytes each as a result of ; compression. If you prefer a larger chunk size for better ; performance, enable output_buffering in addition. ; Note: You need to use zlib.output_handler instead of the standard ; output_handler, or otherwise the output will be corrupted. ; http://php.net/zlib.output-compression zlib.output_compression = Off ; http://php.net/zlib.output-compression-level ;zlib.output_compression_level = -1 ; You cannot specify additional output handlers if zlib.output_compression ; is activated here. This setting does the same as output_handler but in ; a different order. ; http://php.net/zlib.output-handler ;zlib.output_handler = ; Implicit flush tells PHP to tell the output layer to flush itself ; automatically after every output block. This is equivalent to calling the ; PHP function flush() after each and every call to print() or echo() and each ; and every HTML block. Turning this option on has serious performance ; implications and is generally recommended for debugging purposes only. ; http://php.net/implicit-flush ; Note: This directive is hardcoded to On for the CLI SAPI implicit_flush = Off ; The unserialize callback function will be called (with the undefined class' ; name as parameter), if the unserializer finds an undefined class ; which should be instantiated. A warning appears if the specified function is ; not defined, or if the function doesn't include/implement the missing class. ; So only set this entry, if you really want to implement such a ; callback-function. unserialize_callback_func = ; When floats & doubles are serialized store serialize_precision significant ; digits after the floating point. The default value ensures that when floats ; are decoded with unserialize, the data will remain the same. serialize_precision = 17 ; open_basedir, if set, limits all file operations to the defined directory ; and below. This directive makes most sense if used in a per-directory ; or per-virtualhost web server configuration file. This directive is ; *NOT* affected by whether Safe Mode is turned On or Off. ; http://php.net/open-basedir ;open_basedir = ; This directive allows you to disable certain functions for security reasons. ; It receives a comma-delimited list of function names. This directive is ; *NOT* affected by whether Safe Mode is turned On or Off. ; http://php.net/disable-functions disable_functions = ; This directive allows you to disable certain classes for security reasons. ; It receives a comma-delimited list of class names. This directive is ; *NOT* affected by whether Safe Mode is turned On or Off. ; http://php.net/disable-classes disable_classes = ; Colors for Syntax Highlighting mode. Anything that's acceptable in ; would work. ; http://php.net/syntax-highlighting ;highlight.string = #DD0000 ;highlight.comment = #FF9900 ;highlight.keyword = #007700 ;highlight.default = #0000BB ;highlight.html = #000000 ; If enabled, the request will be allowed to complete even if the user aborts ; the request. Consider enabling it if executing long requests, which may end up ; being interrupted by the user or a browser timing out. PHP's default behavior ; is to disable this feature. ; http://php.net/ignore-user-abort ;ignore_user_abort = On ; Determines the size of the realpath cache to be used by PHP. This value should ; be increased on systems where PHP opens many files to reflect the quantity of ; the file operations performed. ; http://php.net/realpath-cache-size ;realpath_cache_size = 16k ; Duration of time, in seconds for which to cache realpath information for a given ; file or directory. For systems with rarely changing files, consider increasing this ; value. ; http://php.net/realpath-cache-ttl ;realpath_cache_ttl = 120 ; Enables or disables the circular reference collector. ; http://php.net/zend.enable-gc zend.enable_gc = On ; If enabled, scripts may be written in encodings that are incompatible with ; the scanner. CP936, Big5, CP949 and Shift_JIS are the examples of such ; encodings. To use this feature, mbstring extension must be enabled. ; Default: Off ;zend.multibyte = Off ; Allows to set the default encoding for the scripts. This value will be used ; unless "declare(encoding=...)" directive appears at the top of the script. ; Only affects if zend.multibyte is set. ; Default: "" ;zend.script_encoding = ;;;;;;;;;;;;;;;;; ; Miscellaneous ; ;;;;;;;;;;;;;;;;; ; Decides whether PHP may expose the fact that it is installed on the server ; (e.g. by adding its signature to the Web server header). It is no security ; threat in any way, but it makes it possible to determine whether you use PHP ; on your server or not. ; http://php.net/expose-php expose_php = On ;;;;;;;;;;;;;;;;;;; ; Resource Limits ; ;;;;;;;;;;;;;;;;;;; ; Maximum execution time of each script, in seconds ; http://php.net/max-execution-time ; Note: This directive is hardcoded to 0 for the CLI SAPI max_execution_time = 30 ; Maximum amount of time each script may spend parsing request data. It's a good ; idea to limit this time on productions servers in order to eliminate unexpectedly ; long running scripts. ; Note: This directive is hardcoded to -1 for the CLI SAPI ; Default Value: -1 (Unlimited) ; Development Value: 60 (60 seconds) ; Production Value: 60 (60 seconds) ; http://php.net/max-input-time max_input_time = 60 ; Maximum input variable nesting level ; http://php.net/max-input-nesting-level ;max_input_nesting_level = 64 ; How many GET/POST/COOKIE input variables may be accepted ; max_input_vars = 1000 ; Maximum amount of memory a script may consume (128MB) ; http://php.net/memory-limit memory_limit = 128M ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; Error handling and logging ; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; This directive informs PHP of which errors, warnings and notices you would like ; it to take action for. The recommended way of setting values for this ; directive is through the use of the error level constants and bitwise ; operators. The error level constants are below here for convenience as well as ; some common settings and their meanings. ; By default, PHP is set to take action on all errors, notices and warnings EXCEPT ; those related to E_NOTICE and E_STRICT, which together cover best practices and ; recommended coding standards in PHP. For performance reasons, this is the ; recommend error reporting setting. Your production server shouldn't be wasting ; resources complaining about best practices and coding standards. That's what ; development servers and development settings are for. ; Note: The php.ini-development file has this setting as E_ALL. This ; means it pretty much reports everything which is exactly what you want during ; development and early testing. ; ; Error Level Constants: ; E_ALL - All errors and warnings (includes E_STRICT as of PHP 5.4.0) ; E_ERROR - fatal run-time errors ; E_RECOVERABLE_ERROR - almost fatal run-time errors ; E_WARNING - run-time warnings (non-fatal errors) ; E_PARSE - compile-time parse errors ; E_NOTICE - run-time notices (these are warnings which often result ; from a bug in your code, but it's possible that it was ; intentional (e.g., using an uninitialized variable and ; relying on the fact it's automatically initialized to an ; empty string) ; E_STRICT - run-time notices, enable to have PHP suggest changes ; to your code which will ensure the best interoperability ; and forward compatibility of your code ; E_CORE_ERROR - fatal errors that occur during PHP's initial startup ; E_CORE_WARNING - warnings (non-fatal errors) that occur during PHP's ; initial startup ; E_COMPILE_ERROR - fatal compile-time errors ; E_COMPILE_WARNING - compile-time warnings (non-fatal errors) ; E_USER_ERROR - user-generated error message ; E_USER_WARNING - user-generated warning message ; E_USER_NOTICE - user-generated notice message ; E_DEPRECATED - warn about code that will not work in future versions ; of PHP ; E_USER_DEPRECATED - user-generated deprecation warnings ; ; Common Values: ; E_ALL (Show all errors, warnings and notices including coding standards.) ; E_ALL & ~E_NOTICE (Show all errors, except for notices) ; E_ALL & ~E_NOTICE & ~E_STRICT (Show all errors, except for notices and coding standards warnings.) ; E_COMPILE_ERROR|E_RECOVERABLE_ERROR|E_ERROR|E_CORE_ERROR (Show only errors) ; Default Value: E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED ; Development Value: E_ALL ; Production Value: E_ALL & ~E_DEPRECATED & ~E_STRICT ; http://php.net/error-reporting error_reporting = E_ALL ; This directive controls whether or not and where PHP will output errors, ; notices and warnings too. Error output is very useful during development, but ; it could be very dangerous in production environments. Depending on the code ; which is triggering the error, sensitive information could potentially leak ; out of your application such as database usernames and passwords or worse. ; It's recommended that errors be logged on production servers rather than ; having the errors sent to STDOUT. ; Possible Values: ; Off = Do not display any errors ; stderr = Display errors to STDERR (affects only CGI/CLI binaries!) ; On or stdout = Display errors to STDOUT ; Default Value: On ; Development Value: On ; Production Value: Off ; http://php.net/display-errors display_errors = On ; The display of errors which occur during PHP's startup sequence are handled ; separately from display_errors. PHP's default behavior is to suppress those ; errors from clients. Turning the display of startup errors on can be useful in ; debugging configuration problems. But, it's strongly recommended that you ; leave this setting off on production servers. ; Default Value: Off ; Development Value: On ; Production Value: Off ; http://php.net/display-startup-errors display_startup_errors = On ; Besides displaying errors, PHP can also log errors to locations such as a ; server-specific log, STDERR, or a location specified by the error_log ; directive found below. While errors should not be displayed on productions ; servers they should still be monitored and logging is a great way to do that. ; Default Value: Off ; Development Value: On ; Production Value: On ; http://php.net/log-errors log_errors = On ; Set maximum length of log_errors. In error_log information about the source is ; added. The default is 1024 and 0 allows to not apply any maximum length at all. ; http://php.net/log-errors-max-len log_errors_max_len = 1024 ; Do not log repeated messages. Repeated errors must occur in same file on same ; line unless ignore_repeated_source is set true. ; http://php.net/ignore-repeated-errors ignore_repeated_errors = Off ; Ignore source of message when ignoring repeated messages. When this setting ; is On you will not log errors with repeated messages from different files or ; source lines. ; http://php.net/ignore-repeated-source ignore_repeated_source = Off ; If this parameter is set to Off, then memory leaks will not be shown (on ; stdout or in the log). This has only effect in a debug compile, and if ; error reporting includes E_WARNING in the allowed list ; http://php.net/report-memleaks report_memleaks = On ; This setting is on by default. ;report_zend_debug = 0 ; Store the last error/warning message in $php_errormsg (boolean). Setting this value ; to On can assist in debugging and is appropriate for development servers. It should ; however be disabled on production servers. ; Default Value: Off ; Development Value: On ; Production Value: Off ; http://php.net/track-errors track_errors = On ; Turn off normal error reporting and emit XML-RPC error XML ; http://php.net/xmlrpc-errors ;xmlrpc_errors = 0 ; An XML-RPC faultCode ;xmlrpc_error_number = 0 ; When PHP displays or logs an error, it has the capability of formatting the ; error message as HTML for easier reading. This directive controls whether ; the error message is formatted as HTML or not. ; Note: This directive is hardcoded to Off for the CLI SAPI ; Default Value: On ; Development Value: On ; Production value: On ; http://php.net/html-errors html_errors = On ; If html_errors is set to On *and* docref_root is not empty, then PHP ; produces clickable error messages that direct to a page describing the error ; or function causing the error in detail. ; You can download a copy of the PHP manual from http://php.net/docs ; and change docref_root to the base URL of your local copy including the ; leading '/'. You must also specify the file extension being used including ; the dot. PHP's default behavior is to leave these settings empty, in which ; case no links to documentation are generated. ; Note: Never use this feature for production boxes. ; http://php.net/docref-root ; Examples ;docref_root = "/phpmanual/" ; http://php.net/docref-ext ;docref_ext = .html ; String to output before an error message. PHP's default behavior is to leave ; this setting blank. ; http://php.net/error-prepend-string ; Example: ;error_prepend_string = "" ; String to output after an error message. PHP's default behavior is to leave ; this setting blank. ; http://php.net/error-append-string ; Example: ;error_append_string = "" ; Log errors to specified file. PHP's default behavior is to leave this value ; empty. ; http://php.net/error-log ; Example: ;error_log = php_errors.log ; Log errors to syslog (Event Log on Windows). ;error_log = syslog ;windows.show_crt_warning ; Default value: 0 ; Development value: 0 ; Production value: 0 ;;;;;;;;;;;;;;;;; ; Data Handling ; ;;;;;;;;;;;;;;;;; ; The separator used in PHP generated URLs to separate arguments. ; PHP's default setting is "&". ; http://php.net/arg-separator.output ; Example: ;arg_separator.output = "&" ; List of separator(s) used by PHP to parse input URLs into variables. ; PHP's default setting is "&". ; NOTE: Every character in this directive is considered as separator! ; http://php.net/arg-separator.input ; Example: ;arg_separator.input = ";&" ; This directive determines which super global arrays are registered when PHP ; starts up. G,P,C,E & S are abbreviations for the following respective super ; globals: GET, POST, COOKIE, ENV and SERVER. There is a performance penalty ; paid for the registration of these arrays and because ENV is not as commonly ; used as the others, ENV is not recommended on productions servers. You ; can still get access to the environment variables through getenv() should you ; need to. ; Default Value: "EGPCS" ; Development Value: "GPCS" ; Production Value: "GPCS"; ; http://php.net/variables-order variables_order = "GPCS" ; This directive determines which super global data (G,P,C,E & S) should ; be registered into the super global array REQUEST. If so, it also determines ; the order in which that data is registered. The values for this directive are ; specified in the same manner as the variables_order directive, EXCEPT one. ; Leaving this value empty will cause PHP to use the value set in the ; variables_order directive. It does not mean it will leave the super globals ; array REQUEST empty. ; Default Value: None ; Development Value: "GP" ; Production Value: "GP" ; http://php.net/request-order request_order = "GP" ; This directive determines whether PHP registers $argv & $argc each time it ; runs. $argv contains an array of all the arguments passed to PHP when a script ; is invoked. $argc contains an integer representing the number of arguments ; that were passed when the script was invoked. These arrays are extremely ; useful when running scripts from the command line. When this directive is ; enabled, registering these variables consumes CPU cycles and memory each time ; a script is executed. For performance reasons, this feature should be disabled ; on production servers. ; Note: This directive is hardcoded to On for the CLI SAPI ; Default Value: On ; Development Value: Off ; Production Value: Off ; http://php.net/register-argc-argv register_argc_argv = Off ; When enabled, the ENV, REQUEST and SERVER variables are created when they're ; first used (Just In Time) instead of when the script starts. If these ; variables are not used within a script, having this directive on will result ; in a performance gain. The PHP directive register_argc_argv must be disabled ; for this directive to have any affect. ; http://php.net/auto-globals-jit auto_globals_jit = On ; Whether PHP will read the POST data. ; This option is enabled by default. ; Most likely, you won't want to disable this option globally. It causes $_POST ; and $_FILES to always be empty; the only way you will be able to read the ; POST data will be through the php://input stream wrapper. This can be useful ; to proxy requests or to process the POST data in a memory efficient fashion. ; http://php.net/enable-post-data-reading ;enable_post_data_reading = Off ; Maximum size of POST data that PHP will accept. ; Its value may be 0 to disable the limit. It is ignored if POST data reading ; is disabled through enable_post_data_reading. ; http://php.net/post-max-size post_max_size = 8M ; Automatically add files before PHP document. ; http://php.net/auto-prepend-file auto_prepend_file = ; Automatically add files after PHP document. ; http://php.net/auto-append-file auto_append_file = ; By default, PHP will output a character encoding using ; the Content-type: header. To disable sending of the charset, simply ; set it to be empty. ; ; PHP's built-in default is text/html ; http://php.net/default-mimetype default_mimetype = "text/html" ; PHP's default character set is set to empty. ; http://php.net/default-charset ;default_charset = "UTF-8" ; Always populate the $HTTP_RAW_POST_DATA variable. PHP's default behavior is ; to disable this feature. If post reading is disabled through ; enable_post_data_reading, $HTTP_RAW_POST_DATA is *NOT* populated. ; http://php.net/always-populate-raw-post-data ;always_populate_raw_post_data = On ;;;;;;;;;;;;;;;;;;;;;;;;; ; Paths and Directories ; ;;;;;;;;;;;;;;;;;;;;;;;;; ; UNIX: "/path1:/path2" ;include_path = ".:/php/includes" ; ; Windows: "\path1;\path2" ;include_path = ".;c:\php\includes" ; ; PHP's default setting for include_path is ".;/path/to/php/pear" ; http://php.net/include-path ; The root of the PHP pages, used only if nonempty. ; if PHP was not compiled with FORCE_REDIRECT, you SHOULD set doc_root ; if you are running php as a CGI under any web server (other than IIS) ; see documentation for security issues. The alternate is to use the ; cgi.force_redirect configuration below ; http://php.net/doc-root doc_root = ; The directory under which PHP opens the script using /~username used only ; if nonempty. ; http://php.net/user-dir user_dir = ; Directory in which the loadable extensions (modules) reside. ; http://php.net/extension-dir ; extension_dir = "./" ; On windows: ; extension_dir = "ext" ; Whether or not to enable the dl() function. The dl() function does NOT work ; properly in multithreaded servers, such as IIS or Zeus, and is automatically ; disabled on them. ; http://php.net/enable-dl enable_dl = Off ; cgi.force_redirect is necessary to provide security running PHP as a CGI under ; most web servers. Left undefined, PHP turns this on by default. You can ; turn it off here AT YOUR OWN RISK ; **You CAN safely turn this off for IIS, in fact, you MUST.** ; http://php.net/cgi.force-redirect ;cgi.force_redirect = 1 ; if cgi.nph is enabled it will force cgi to always sent Status: 200 with ; every request. PHP's default behavior is to disable this feature. ;cgi.nph = 1 ; if cgi.force_redirect is turned on, and you are not running under Apache or Netscape ; (iPlanet) web servers, you MAY need to set an environment variable name that PHP ; will look for to know it is OK to continue execution. Setting this variable MAY ; cause security issues, KNOW WHAT YOU ARE DOING FIRST. ; http://php.net/cgi.redirect-status-env ;cgi.redirect_status_env = ; cgi.fix_pathinfo provides *real* PATH_INFO/PATH_TRANSLATED support for CGI. PHP's ; previous behaviour was to set PATH_TRANSLATED to SCRIPT_FILENAME, and to not grok ; what PATH_INFO is. For more information on PATH_INFO, see the cgi specs. Setting ; this to 1 will cause PHP CGI to fix its paths to conform to the spec. A setting ; of zero causes PHP to behave as before. Default is 1. You should fix your scripts ; to use SCRIPT_FILENAME rather than PATH_TRANSLATED. ; http://php.net/cgi.fix-pathinfo ;cgi.fix_pathinfo=1 ; FastCGI under IIS (on WINNT based OS) supports the ability to impersonate ; security tokens of the calling client. This allows IIS to define the ; security context that the request runs under. mod_fastcgi under Apache ; does not currently support this feature (03/17/2002) ; Set to 1 if running under IIS. Default is zero. ; http://php.net/fastcgi.impersonate ;fastcgi.impersonate = 1 ; Disable logging through FastCGI connection. PHP's default behavior is to enable ; this feature. ;fastcgi.logging = 0 ; cgi.rfc2616_headers configuration option tells PHP what type of headers to ; use when sending HTTP response code. If it's set 0 PHP sends Status: header that ; is supported by Apache. When this option is set to 1 PHP will send ; RFC2616 compliant header. ; Default is zero. ; http://php.net/cgi.rfc2616-headers ;cgi.rfc2616_headers = 0 ;;;;;;;;;;;;;;;; ; File Uploads ; ;;;;;;;;;;;;;;;; ; Whether to allow HTTP file uploads. ; http://php.net/file-uploads file_uploads = On ; Temporary directory for HTTP uploaded files (will use system default if not ; specified). ; http://php.net/upload-tmp-dir ;upload_tmp_dir = ; Maximum allowed size for uploaded files. ; http://php.net/upload-max-filesize upload_max_filesize = 2M ; Maximum number of files that can be uploaded via a single request max_file_uploads = 20 ;;;;;;;;;;;;;;;;;; ; Fopen wrappers ; ;;;;;;;;;;;;;;;;;; ; Whether to allow the treatment of URLs (like http:// or ftp://) as files. ; http://php.net/allow-url-fopen allow_url_fopen = On ; Whether to allow include/require to open URLs (like http:// or ftp://) as files. ; http://php.net/allow-url-include allow_url_include = Off ; Define the anonymous ftp password (your email address). PHP's default setting ; for this is empty. ; http://php.net/from ;from="john@doe.com" ; Define the User-Agent string. PHP's default setting for this is empty. ; http://php.net/user-agent ;user_agent="PHP" ; Default timeout for socket based streams (seconds) ; http://php.net/default-socket-timeout default_socket_timeout = 60 ; If your scripts have to deal with files from Macintosh systems, ; or you are running on a Mac and need to deal with files from ; unix or win32 systems, setting this flag will cause PHP to ; automatically detect the EOL character in those files so that ; fgets() and file() will work regardless of the source of the file. ; http://php.net/auto-detect-line-endings ;auto_detect_line_endings = Off ;;;;;;;;;;;;;;;;;;;;;; ; Dynamic Extensions ; ;;;;;;;;;;;;;;;;;;;;;; ; If you wish to have an extension loaded automatically, use the following ; syntax: ; ; extension=modulename.extension ; ; For example, on Windows: ; ; extension=msql.dll ; ; ... or under UNIX: ; ; extension=msql.so ; ; ... or with a path: ; ; extension=/path/to/extension/msql.so ; ; If you only provide the name of the extension, PHP will look for it in its ; default extension directory. ; ; Windows Extensions ; Note that ODBC support is built in, so no dll is needed for it. ; Note that many DLL files are located in the extensions/ (PHP 4) ext/ (PHP 5) ; extension folders as well as the separate PECL DLL download (PHP 5). ; Be sure to appropriately set the extension_dir directive. ; ;extension=php_bz2.dll ;extension=php_curl.dll ;extension=php_fileinfo.dll ;extension=php_gd2.dll ;extension=php_gettext.dll ;extension=php_gmp.dll ;extension=php_intl.dll ;extension=php_imap.dll ;extension=php_interbase.dll ;extension=php_ldap.dll ;extension=php_mbstring.dll ;extension=php_exif.dll ; Must be after mbstring as it depends on it ;extension=php_mysql.dll ;extension=php_mysqli.dll ;extension=php_oci8.dll ; Use with Oracle 10gR2 Instant Client ;extension=php_oci8_11g.dll ; Use with Oracle 11gR2 Instant Client ;extension=php_openssl.dll ;extension=php_pdo_firebird.dll ;extension=php_pdo_mysql.dll ;extension=php_pdo_oci.dll ;extension=php_pdo_odbc.dll ;extension=php_pdo_pgsql.dll ;extension=php_pdo_sqlite.dll ;extension=php_pgsql.dll ;extension=php_pspell.dll ;extension=php_shmop.dll ; The MIBS data available in the PHP distribution must be installed. ; See http://www.php.net/manual/en/snmp.installation.php ;extension=php_snmp.dll ;extension=php_soap.dll ;extension=php_sockets.dll ;extension=php_sqlite3.dll ;extension=php_sybase_ct.dll ;extension=php_tidy.dll ;extension=php_xmlrpc.dll ;extension=php_xsl.dll ;;;;;;;;;;;;;;;;;;; ; Module Settings ; ;;;;;;;;;;;;;;;;;;; [CLI Server] ; Whether the CLI web server uses ANSI color coding in its terminal output. cli_server.color = On [Date] ; Defines the default timezone used by the date functions ; http://php.net/date.timezone ;date.timezone = ; http://php.net/date.default-latitude ;date.default_latitude = 31.7667 ; http://php.net/date.default-longitude ;date.default_longitude = 35.2333 ; http://php.net/date.sunrise-zenith ;date.sunrise_zenith = 90.583333 ; http://php.net/date.sunset-zenith ;date.sunset_zenith = 90.583333 [filter] ; http://php.net/filter.default ;filter.default = unsafe_raw ; http://php.net/filter.default-flags ;filter.default_flags = [iconv] ;iconv.input_encoding = ISO-8859-1 ;iconv.internal_encoding = ISO-8859-1 ;iconv.output_encoding = ISO-8859-1 [intl] ;intl.default_locale = ; This directive allows you to produce PHP errors when some error ; happens within intl functions. The value is the level of the error produced. ; Default is 0, which does not produce any errors. ;intl.error_level = E_WARNING [sqlite] ; http://php.net/sqlite.assoc-case ;sqlite.assoc_case = 0 [sqlite3] ;sqlite3.extension_dir = [Pcre] ;PCRE library backtracking limit. ; http://php.net/pcre.backtrack-limit ;pcre.backtrack_limit=100000 ;PCRE library recursion limit. ;Please note that if you set this value to a high number you may consume all ;the available process stack and eventually crash PHP (due to reaching the ;stack size limit imposed by the Operating System). ; http://php.net/pcre.recursion-limit ;pcre.recursion_limit=100000 [Pdo] ; Whether to pool ODBC connections. Can be one of "strict", "relaxed" or "off" ; http://php.net/pdo-odbc.connection-pooling ;pdo_odbc.connection_pooling=strict ;pdo_odbc.db2_instance_name [Pdo_mysql] ; If mysqlnd is used: Number of cache slots for the internal result set cache ; http://php.net/pdo_mysql.cache_size pdo_mysql.cache_size = 2000 ; Default socket name for local MySQL connects. If empty, uses the built-in ; MySQL defaults. ; http://php.net/pdo_mysql.default-socket pdo_mysql.default_socket= [Phar] ; http://php.net/phar.readonly ;phar.readonly = On ; http://php.net/phar.require-hash ;phar.require_hash = On ;phar.cache_list = [mail function] ; For Win32 only. ; http://php.net/smtp SMTP = localhost ; http://php.net/smtp-port smtp_port = 25 ; For Win32 only. ; http://php.net/sendmail-from ;sendmail_from = me@example.com ; For Unix only. You may supply arguments as well (default: "sendmail -t -i"). ; http://php.net/sendmail-path ;sendmail_path = ; Force the addition of the specified parameters to be passed as extra parameters ; to the sendmail binary. These parameters will always replace the value of ; the 5th parameter to mail(), even in safe mode. ;mail.force_extra_parameters = ; Add X-PHP-Originating-Script: that will include uid of the script followed by the filename mail.add_x_header = On ; The path to a log file that will log all mail() calls. Log entries include ; the full path of the script, line number, To address and headers. ;mail.log = ; Log mail to syslog (Event Log on Windows). ;mail.log = syslog [SQL] ; http://php.net/sql.safe-mode sql.safe_mode = Off [ODBC] ; http://php.net/odbc.default-db ;odbc.default_db = Not yet implemented ; http://php.net/odbc.default-user ;odbc.default_user = Not yet implemented ; http://php.net/odbc.default-pw ;odbc.default_pw = Not yet implemented ; Controls the ODBC cursor model. ; Default: SQL_CURSOR_STATIC (default). ;odbc.default_cursortype ; Allow or prevent persistent links. ; http://php.net/odbc.allow-persistent odbc.allow_persistent = On ; Check that a connection is still valid before reuse. ; http://php.net/odbc.check-persistent odbc.check_persistent = On ; Maximum number of persistent links. -1 means no limit. ; http://php.net/odbc.max-persistent odbc.max_persistent = -1 ; Maximum number of links (persistent + non-persistent). -1 means no limit. ; http://php.net/odbc.max-links odbc.max_links = -1 ; Handling of LONG fields. Returns number of bytes to variables. 0 means ; passthru. ; http://php.net/odbc.defaultlrl odbc.defaultlrl = 4096 ; Handling of binary data. 0 means passthru, 1 return as is, 2 convert to char. ; See the documentation on odbc_binmode and odbc_longreadlen for an explanation ; of odbc.defaultlrl and odbc.defaultbinmode ; http://php.net/odbc.defaultbinmode odbc.defaultbinmode = 1 ;birdstep.max_links = -1 [Interbase] ; Allow or prevent persistent links. ibase.allow_persistent = 1 ; Maximum number of persistent links. -1 means no limit. ibase.max_persistent = -1 ; Maximum number of links (persistent + non-persistent). -1 means no limit. ibase.max_links = -1 ; Default database name for ibase_connect(). ;ibase.default_db = ; Default username for ibase_connect(). ;ibase.default_user = ; Default password for ibase_connect(). ;ibase.default_password = ; Default charset for ibase_connect(). ;ibase.default_charset = ; Default timestamp format. ibase.timestampformat = "%Y-%m-%d %H:%M:%S" ; Default date format. ibase.dateformat = "%Y-%m-%d" ; Default time format. ibase.timeformat = "%H:%M:%S" [MySQL] ; Allow accessing, from PHP's perspective, local files with LOAD DATA statements ; http://php.net/mysql.allow_local_infile mysql.allow_local_infile = On ; Allow or prevent persistent links. ; http://php.net/mysql.allow-persistent mysql.allow_persistent = On ; If mysqlnd is used: Number of cache slots for the internal result set cache ; http://php.net/mysql.cache_size mysql.cache_size = 2000 ; Maximum number of persistent links. -1 means no limit. ; http://php.net/mysql.max-persistent mysql.max_persistent = -1 ; Maximum number of links (persistent + non-persistent). -1 means no limit. ; http://php.net/mysql.max-links mysql.max_links = -1 ; Default port number for mysql_connect(). If unset, mysql_connect() will use ; the $MYSQL_TCP_PORT or the mysql-tcp entry in /etc/services or the ; compile-time value defined MYSQL_PORT (in that order). Win32 will only look ; at MYSQL_PORT. ; http://php.net/mysql.default-port mysql.default_port = ; Default socket name for local MySQL connects. If empty, uses the built-in ; MySQL defaults. ; http://php.net/mysql.default-socket mysql.default_socket = ; Default host for mysql_connect() (doesn't apply in safe mode). ; http://php.net/mysql.default-host mysql.default_host = ; Default user for mysql_connect() (doesn't apply in safe mode). ; http://php.net/mysql.default-user mysql.default_user = ; Default password for mysql_connect() (doesn't apply in safe mode). ; Note that this is generally a *bad* idea to store passwords in this file. ; *Any* user with PHP access can run 'echo get_cfg_var("mysql.default_password") ; and reveal this password! And of course, any users with read access to this ; file will be able to reveal the password as well. ; http://php.net/mysql.default-password mysql.default_password = ; Maximum time (in seconds) for connect timeout. -1 means no limit ; http://php.net/mysql.connect-timeout mysql.connect_timeout = 60 ; Trace mode. When trace_mode is active (=On), warnings for table/index scans and ; SQL-Errors will be displayed. ; http://php.net/mysql.trace-mode mysql.trace_mode = Off [MySQLi] ; Maximum number of persistent links. -1 means no limit. ; http://php.net/mysqli.max-persistent mysqli.max_persistent = -1 ; Allow accessing, from PHP's perspective, local files with LOAD DATA statements ; http://php.net/mysqli.allow_local_infile ;mysqli.allow_local_infile = On ; Allow or prevent persistent links. ; http://php.net/mysqli.allow-persistent mysqli.allow_persistent = On ; Maximum number of links. -1 means no limit. ; http://php.net/mysqli.max-links mysqli.max_links = -1 ; If mysqlnd is used: Number of cache slots for the internal result set cache ; http://php.net/mysqli.cache_size mysqli.cache_size = 2000 ; Default port number for mysqli_connect(). If unset, mysqli_connect() will use ; the $MYSQL_TCP_PORT or the mysql-tcp entry in /etc/services or the ; compile-time value defined MYSQL_PORT (in that order). Win32 will only look ; at MYSQL_PORT. ; http://php.net/mysqli.default-port mysqli.default_port = 3306 ; Default socket name for local MySQL connects. If empty, uses the built-in ; MySQL defaults. ; http://php.net/mysqli.default-socket mysqli.default_socket = ; Default host for mysql_connect() (doesn't apply in safe mode). ; http://php.net/mysqli.default-host mysqli.default_host = ; Default user for mysql_connect() (doesn't apply in safe mode). ; http://php.net/mysqli.default-user mysqli.default_user = ; Default password for mysqli_connect() (doesn't apply in safe mode). ; Note that this is generally a *bad* idea to store passwords in this file. ; *Any* user with PHP access can run 'echo get_cfg_var("mysqli.default_pw") ; and reveal this password! And of course, any users with read access to this ; file will be able to reveal the password as well. ; http://php.net/mysqli.default-pw mysqli.default_pw = ; Allow or prevent reconnect mysqli.reconnect = Off [mysqlnd] ; Enable / Disable collection of general statistics by mysqlnd which can be ; used to tune and monitor MySQL operations. ; http://php.net/mysqlnd.collect_statistics mysqlnd.collect_statistics = On ; Enable / Disable collection of memory usage statistics by mysqlnd which can be ; used to tune and monitor MySQL operations. ; http://php.net/mysqlnd.collect_memory_statistics mysqlnd.collect_memory_statistics = On ; Size of a pre-allocated buffer used when sending commands to MySQL in bytes. ; http://php.net/mysqlnd.net_cmd_buffer_size ;mysqlnd.net_cmd_buffer_size = 2048 ; Size of a pre-allocated buffer used for reading data sent by the server in ; bytes. ; http://php.net/mysqlnd.net_read_buffer_size ;mysqlnd.net_read_buffer_size = 32768 [OCI8] ; Connection: Enables privileged connections using external ; credentials (OCI_SYSOPER, OCI_SYSDBA) ; http://php.net/oci8.privileged-connect ;oci8.privileged_connect = Off ; Connection: The maximum number of persistent OCI8 connections per ; process. Using -1 means no limit. ; http://php.net/oci8.max-persistent ;oci8.max_persistent = -1 ; Connection: The maximum number of seconds a process is allowed to ; maintain an idle persistent connection. Using -1 means idle ; persistent connections will be maintained forever. ; http://php.net/oci8.persistent-timeout ;oci8.persistent_timeout = -1 ; Connection: The number of seconds that must pass before issuing a ; ping during oci_pconnect() to check the connection validity. When ; set to 0, each oci_pconnect() will cause a ping. Using -1 disables ; pings completely. ; http://php.net/oci8.ping-interval ;oci8.ping_interval = 60 ; Connection: Set this to a user chosen connection class to be used ; for all pooled server requests with Oracle 11g Database Resident ; Connection Pooling (DRCP). To use DRCP, this value should be set to ; the same string for all web servers running the same application, ; the database pool must be configured, and the connection string must ; specify to use a pooled server. ;oci8.connection_class = ; High Availability: Using On lets PHP receive Fast Application ; Notification (FAN) events generated when a database node fails. The ; database must also be configured to post FAN events. ;oci8.events = Off ; Tuning: This option enables statement caching, and specifies how ; many statements to cache. Using 0 disables statement caching. ; http://php.net/oci8.statement-cache-size ;oci8.statement_cache_size = 20 ; Tuning: Enables statement prefetching and sets the default number of ; rows that will be fetched automatically after statement execution. ; http://php.net/oci8.default-prefetch ;oci8.default_prefetch = 100 ; Compatibility. Using On means oci_close() will not close ; oci_connect() and oci_new_connect() connections. ; http://php.net/oci8.old-oci-close-semantics ;oci8.old_oci_close_semantics = Off [PostgreSQL] ; Allow or prevent persistent links. ; http://php.net/pgsql.allow-persistent pgsql.allow_persistent = On ; Detect broken persistent links always with pg_pconnect(). ; Auto reset feature requires a little overheads. ; http://php.net/pgsql.auto-reset-persistent pgsql.auto_reset_persistent = Off ; Maximum number of persistent links. -1 means no limit. ; http://php.net/pgsql.max-persistent pgsql.max_persistent = -1 ; Maximum number of links (persistent+non persistent). -1 means no limit. ; http://php.net/pgsql.max-links pgsql.max_links = -1 ; Ignore PostgreSQL backends Notice message or not. ; Notice message logging require a little overheads. ; http://php.net/pgsql.ignore-notice pgsql.ignore_notice = 0 ; Log PostgreSQL backends Notice message or not. ; Unless pgsql.ignore_notice=0, module cannot log notice message. ; http://php.net/pgsql.log-notice pgsql.log_notice = 0 [Sybase-CT] ; Allow or prevent persistent links. ; http://php.net/sybct.allow-persistent sybct.allow_persistent = On ; Maximum number of persistent links. -1 means no limit. ; http://php.net/sybct.max-persistent sybct.max_persistent = -1 ; Maximum number of links (persistent + non-persistent). -1 means no limit. ; http://php.net/sybct.max-links sybct.max_links = -1 ; Minimum server message severity to display. ; http://php.net/sybct.min-server-severity sybct.min_server_severity = 10 ; Minimum client message severity to display. ; http://php.net/sybct.min-client-severity sybct.min_client_severity = 10 ; Set per-context timeout ; http://php.net/sybct.timeout ;sybct.timeout= ;sybct.packet_size ; The maximum time in seconds to wait for a connection attempt to succeed before returning failure. ; Default: one minute ;sybct.login_timeout= ; The name of the host you claim to be connecting from, for display by sp_who. ; Default: none ;sybct.hostname= ; Allows you to define how often deadlocks are to be retried. -1 means "forever". ; Default: 0 ;sybct.deadlock_retry_count= [bcmath] ; Number of decimal digits for all bcmath functions. ; http://php.net/bcmath.scale bcmath.scale = 0 [browscap] ; http://php.net/browscap ;browscap = extra/browscap.ini [Session] ; Handler used to store/retrieve data. ; http://php.net/session.save-handler session.save_handler = files ; Argument passed to save_handler. In the case of files, this is the path ; where data files are stored. Note: Windows users have to change this ; variable in order to use PHP's session functions. ; ; The path can be defined as: ; ; session.save_path = "N;/path" ; ; where N is an integer. Instead of storing all the session files in ; /path, what this will do is use subdirectories N-levels deep, and ; store the session data in those directories. This is useful if you ; or your OS have problems with lots of files in one directory, and is ; a more efficient layout for servers that handle lots of sessions. ; ; NOTE 1: PHP will not create this directory structure automatically. ; You can use the script in the ext/session dir for that purpose. ; NOTE 2: See the section on garbage collection below if you choose to ; use subdirectories for session storage ; ; The file storage module creates files using mode 600 by default. ; You can change that by using ; ; session.save_path = "N;MODE;/path" ; ; where MODE is the octal representation of the mode. Note that this ; does not overwrite the process's umask. ; http://php.net/session.save-path ;session.save_path = "/tmp" ; Whether to use cookies. ; http://php.net/session.use-cookies session.use_cookies = 1 ; http://php.net/session.cookie-secure ;session.cookie_secure = ; This option forces PHP to fetch and use a cookie for storing and maintaining ; the session id. We encourage this operation as it's very helpful in combating ; session hijacking when not specifying and managing your own session id. It is ; not the end all be all of session hijacking defense, but it's a good start. ; http://php.net/session.use-only-cookies session.use_only_cookies = 1 ; Name of the session (used as cookie name). ; http://php.net/session.name session.name = PHPSESSID ; Initialize session on request startup. ; http://php.net/session.auto-start session.auto_start = 0 ; Lifetime in seconds of cookie or, if 0, until browser is restarted. ; http://php.net/session.cookie-lifetime session.cookie_lifetime = 0 ; The path for which the cookie is valid. ; http://php.net/session.cookie-path session.cookie_path = / ; The domain for which the cookie is valid. ; http://php.net/session.cookie-domain session.cookie_domain = ; Whether or not to add the httpOnly flag to the cookie, which makes it inaccessible to browser scripting languages such as JavaScript. ; http://php.net/session.cookie-httponly session.cookie_httponly = ; Handler used to serialize data. php is the standard serializer of PHP. ; http://php.net/session.serialize-handler session.serialize_handler = php ; Defines the probability that the 'garbage collection' process is started ; on every session initialization. The probability is calculated by using ; gc_probability/gc_divisor. Where session.gc_probability is the numerator ; and gc_divisor is the denominator in the equation. Setting this value to 1 ; when the session.gc_divisor value is 100 will give you approximately a 1% chance ; the gc will run on any give request. ; Default Value: 1 ; Development Value: 1 ; Production Value: 1 ; http://php.net/session.gc-probability session.gc_probability = 1 ; Defines the probability that the 'garbage collection' process is started on every ; session initialization. The probability is calculated by using the following equation: ; gc_probability/gc_divisor. Where session.gc_probability is the numerator and ; session.gc_divisor is the denominator in the equation. Setting this value to 1 ; when the session.gc_divisor value is 100 will give you approximately a 1% chance ; the gc will run on any give request. Increasing this value to 1000 will give you ; a 0.1% chance the gc will run on any give request. For high volume production servers, ; this is a more efficient approach. ; Default Value: 100 ; Development Value: 1000 ; Production Value: 1000 ; http://php.net/session.gc-divisor session.gc_divisor = 1000 ; After this number of seconds, stored data will be seen as 'garbage' and ; cleaned up by the garbage collection process. ; http://php.net/session.gc-maxlifetime session.gc_maxlifetime = 1440 ; NOTE: If you are using the subdirectory option for storing session files ; (see session.save_path above), then garbage collection does *not* ; happen automatically. You will need to do your own garbage ; collection through a shell script, cron entry, or some other method. ; For example, the following script would is the equivalent of ; setting session.gc_maxlifetime to 1440 (1440 seconds = 24 minutes): ; find /path/to/sessions -cmin +24 -type f | xargs rm ; Check HTTP Referer to invalidate externally stored URLs containing ids. ; HTTP_REFERER has to contain this substring for the session to be ; considered as valid. ; http://php.net/session.referer-check session.referer_check = ; How many bytes to read from the file. ; http://php.net/session.entropy-length ;session.entropy_length = 32 ; Specified here to create the session id. ; http://php.net/session.entropy-file ; Defaults to /dev/urandom ; On systems that don't have /dev/urandom but do have /dev/arandom, this will default to /dev/arandom ; If neither are found at compile time, the default is no entropy file. ; On windows, setting the entropy_length setting will activate the ; Windows random source (using the CryptoAPI) ;session.entropy_file = /dev/urandom ; Set to {nocache,private,public,} to determine HTTP caching aspects ; or leave this empty to avoid sending anti-caching headers. ; http://php.net/session.cache-limiter session.cache_limiter = nocache ; Document expires after n minutes. ; http://php.net/session.cache-expire session.cache_expire = 180 ; trans sid support is disabled by default. ; Use of trans sid may risk your users security. ; Use this option with caution. ; - User may send URL contains active session ID ; to other person via. email/irc/etc. ; - URL that contains active session ID may be stored ; in publicly accessible computer. ; - User may access your site with the same session ID ; always using URL stored in browser's history or bookmarks. ; http://php.net/session.use-trans-sid session.use_trans_sid = 0 ; Select a hash function for use in generating session ids. ; Possible Values ; 0 (MD5 128 bits) ; 1 (SHA-1 160 bits) ; This option may also be set to the name of any hash function supported by ; the hash extension. A list of available hashes is returned by the hash_algos() ; function. ; http://php.net/session.hash-function session.hash_function = 0 ; Define how many bits are stored in each character when converting ; the binary hash data to something readable. ; Possible values: ; 4 (4 bits: 0-9, a-f) ; 5 (5 bits: 0-9, a-v) ; 6 (6 bits: 0-9, a-z, A-Z, "-", ",") ; Default Value: 4 ; Development Value: 5 ; Production Value: 5 ; http://php.net/session.hash-bits-per-character session.hash_bits_per_character = 5 ; The URL rewriter will look for URLs in a defined set of HTML tags. ; form/fieldset are special; if you include them here, the rewriter will ; add a hidden field with the info which is otherwise appended ; to URLs. If you want XHTML conformity, remove the form entry. ; Note that all valid entries require a "=", even if no value follows. ; Default Value: "a=href,area=href,frame=src,form=,fieldset=" ; Development Value: "a=href,area=href,frame=src,input=src,form=fakeentry" ; Production Value: "a=href,area=href,frame=src,input=src,form=fakeentry" ; http://php.net/url-rewriter.tags url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry" ; Enable upload progress tracking in $_SESSION ; Default Value: On ; Development Value: On ; Production Value: On ; http://php.net/session.upload-progress.enabled ;session.upload_progress.enabled = On ; Cleanup the progress information as soon as all POST data has been read ; (i.e. upload completed). ; Default Value: On ; Development Value: On ; Production Value: On ; http://php.net/session.upload-progress.cleanup ;session.upload_progress.cleanup = On ; A prefix used for the upload progress key in $_SESSION ; Default Value: "upload_progress_" ; Development Value: "upload_progress_" ; Production Value: "upload_progress_" ; http://php.net/session.upload-progress.prefix ;session.upload_progress.prefix = "upload_progress_" ; The index name (concatenated with the prefix) in $_SESSION ; containing the upload progress information ; Default Value: "PHP_SESSION_UPLOAD_PROGRESS" ; Development Value: "PHP_SESSION_UPLOAD_PROGRESS" ; Production Value: "PHP_SESSION_UPLOAD_PROGRESS" ; http://php.net/session.upload-progress.name ;session.upload_progress.name = "PHP_SESSION_UPLOAD_PROGRESS" ; How frequently the upload progress should be updated. ; Given either in percentages (per-file), or in bytes ; Default Value: "1%" ; Development Value: "1%" ; Production Value: "1%" ; http://php.net/session.upload-progress.freq ;session.upload_progress.freq = "1%" ; The minimum delay between updates, in seconds ; Default Value: 1 ; Development Value: 1 ; Production Value: 1 ; http://php.net/session.upload-progress.min-freq ;session.upload_progress.min_freq = "1" [MSSQL] ; Allow or prevent persistent links. mssql.allow_persistent = On ; Maximum number of persistent links. -1 means no limit. mssql.max_persistent = -1 ; Maximum number of links (persistent+non persistent). -1 means no limit. mssql.max_links = -1 ; Minimum error severity to display. mssql.min_error_severity = 10 ; Minimum message severity to display. mssql.min_message_severity = 10 ; Compatibility mode with old versions of PHP 3.0. mssql.compatability_mode = Off ; Connect timeout ;mssql.connect_timeout = 5 ; Query timeout ;mssql.timeout = 60 ; Valid range 0 - 2147483647. Default = 4096. ;mssql.textlimit = 4096 ; Valid range 0 - 2147483647. Default = 4096. ;mssql.textsize = 4096 ; Limits the number of records in each batch. 0 = all records in one batch. ;mssql.batchsize = 0 ; Specify how datetime and datetim4 columns are returned ; On => Returns data converted to SQL server settings ; Off => Returns values as YYYY-MM-DD hh:mm:ss ;mssql.datetimeconvert = On ; Use NT authentication when connecting to the server mssql.secure_connection = Off ; Specify max number of processes. -1 = library default ; msdlib defaults to 25 ; FreeTDS defaults to 4096 ;mssql.max_procs = -1 ; Specify client character set. ; If empty or not set the client charset from freetds.conf is used ; This is only used when compiled with FreeTDS ;mssql.charset = "ISO-8859-1" [Assertion] ; Assert(expr); active by default. ; http://php.net/assert.active ;assert.active = On ; Issue a PHP warning for each failed assertion. ; http://php.net/assert.warning ;assert.warning = On ; Don't bail out by default. ; http://php.net/assert.bail ;assert.bail = Off ; User-function to be called if an assertion fails. ; http://php.net/assert.callback ;assert.callback = 0 ; Eval the expression with current error_reporting(). Set to true if you want ; error_reporting(0) around the eval(). ; http://php.net/assert.quiet-eval ;assert.quiet_eval = 0 [COM] ; path to a file containing GUIDs, IIDs or filenames of files with TypeLibs ; http://php.net/com.typelib-file ;com.typelib_file = ; allow Distributed-COM calls ; http://php.net/com.allow-dcom ;com.allow_dcom = true ; autoregister constants of a components typlib on com_load() ; http://php.net/com.autoregister-typelib ;com.autoregister_typelib = true ; register constants casesensitive ; http://php.net/com.autoregister-casesensitive ;com.autoregister_casesensitive = false ; show warnings on duplicate constant registrations ; http://php.net/com.autoregister-verbose ;com.autoregister_verbose = true ; The default character set code-page to use when passing strings to and from COM objects. ; Default: system ANSI code page ;com.code_page= [mbstring] ; language for internal character representation. ; http://php.net/mbstring.language ;mbstring.language = Japanese ; internal/script encoding. ; Some encoding cannot work as internal encoding. ; (e.g. SJIS, BIG5, ISO-2022-*) ; http://php.net/mbstring.internal-encoding ;mbstring.internal_encoding = EUC-JP ; http input encoding. ; http://php.net/mbstring.http-input ;mbstring.http_input = auto ; http output encoding. mb_output_handler must be ; registered as output buffer to function ; http://php.net/mbstring.http-output ;mbstring.http_output = SJIS ; enable automatic encoding translation according to ; mbstring.internal_encoding setting. Input chars are ; converted to internal encoding by setting this to On. ; Note: Do _not_ use automatic encoding translation for ; portable libs/applications. ; http://php.net/mbstring.encoding-translation ;mbstring.encoding_translation = Off ; automatic encoding detection order. ; auto means ; http://php.net/mbstring.detect-order ;mbstring.detect_order = auto ; substitute_character used when character cannot be converted ; one from another ; http://php.net/mbstring.substitute-character ;mbstring.substitute_character = none; ; overload(replace) single byte functions by mbstring functions. ; mail(), ereg(), etc are overloaded by mb_send_mail(), mb_ereg(), ; etc. Possible values are 0,1,2,4 or combination of them. ; For example, 7 for overload everything. ; 0: No overload ; 1: Overload mail() function ; 2: Overload str*() functions ; 4: Overload ereg*() functions ; http://php.net/mbstring.func-overload ;mbstring.func_overload = 0 ; enable strict encoding detection. ;mbstring.strict_detection = Off ; This directive specifies the regex pattern of content types for which mb_output_handler() ; is activated. ; Default: mbstring.http_output_conv_mimetype=^(text/|application/xhtml\+xml) ;mbstring.http_output_conv_mimetype= [gd] ; Tell the jpeg decode to ignore warnings and try to create ; a gd image. The warning will then be displayed as notices ; disabled by default ; http://php.net/gd.jpeg-ignore-warning ;gd.jpeg_ignore_warning = 0 [exif] ; Exif UNICODE user comments are handled as UCS-2BE/UCS-2LE and JIS as JIS. ; With mbstring support this will automatically be converted into the encoding ; given by corresponding encode setting. When empty mbstring.internal_encoding ; is used. For the decode settings you can distinguish between motorola and ; intel byte order. A decode setting cannot be empty. ; http://php.net/exif.encode-unicode ;exif.encode_unicode = ISO-8859-15 ; http://php.net/exif.decode-unicode-motorola ;exif.decode_unicode_motorola = UCS-2BE ; http://php.net/exif.decode-unicode-intel ;exif.decode_unicode_intel = UCS-2LE ; http://php.net/exif.encode-jis ;exif.encode_jis = ; http://php.net/exif.decode-jis-motorola ;exif.decode_jis_motorola = JIS ; http://php.net/exif.decode-jis-intel ;exif.decode_jis_intel = JIS [Tidy] ; The path to a default tidy configuration file to use when using tidy ; http://php.net/tidy.default-config ;tidy.default_config = /usr/local/lib/php/default.tcfg ; Should tidy clean and repair output automatically? ; WARNING: Do not use this option if you are generating non-html content ; such as dynamic images ; http://php.net/tidy.clean-output tidy.clean_output = Off [soap] ; Enables or disables WSDL caching feature. ; http://php.net/soap.wsdl-cache-enabled soap.wsdl_cache_enabled=1 ; Sets the directory name where SOAP extension will put cache files. ; http://php.net/soap.wsdl-cache-dir soap.wsdl_cache_dir="/tmp" ; (time to live) Sets the number of second while cached file will be used ; instead of original one. ; http://php.net/soap.wsdl-cache-ttl soap.wsdl_cache_ttl=86400 ; Sets the size of the cache limit. (Max. number of WSDL files to cache) soap.wsdl_cache_limit = 5 [sysvshm] ; A default size of the shared memory segment ;sysvshm.init_mem = 10000 [ldap] ; Sets the maximum number of open links or -1 for unlimited. ldap.max_links = -1 [mcrypt] ; For more information about mcrypt settings see http://php.net/mcrypt-module-open ; Directory where to load mcrypt algorithms ; Default: Compiled in into libmcrypt (usually /usr/local/lib/libmcrypt) ;mcrypt.algorithms_dir= ; Directory where to load mcrypt modes ; Default: Compiled in into libmcrypt (usually /usr/local/lib/libmcrypt) ;mcrypt.modes_dir= [dba] ;dba.default_handler= [curl] ; A default value for the CURLOPT_CAINFO option. This is required to be an ; absolute path. ;curl.cainfo = ; Local Variables: ; tab-width: 4 ; End:

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