Changes between Version 25 and Version 26 of WebKitGTK/Debugging
- Timestamp:
- Mar 25, 2020, 6:18:14 AM (5 years ago)
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WebKitGTK/Debugging
v25 v26 19 19 If you are not using the Flatpak SDK and you want to debug the web process, the simplest way is to connect to it using gdb: 20 20 {{{ 21 #!sh 21 22 $ gdb -p <pid of WebKitWebProcess> 22 23 }}} … … 25 26 If you are using the Flatpak SDK and you want to debug the web process, the simplest way is to connect to it using gdb: 26 27 {{{ 28 #!sh 27 29 $ Tools/Scripts/webkit-flatpak --command=gdb /app/webkit/WebKitBuild/Debug/bin/WebKitWebProcess 28 30 }}} … … 33 35 Example: 34 36 {{{ 37 #!sh 35 38 WEB_PROCESS_CMD_PREFIX='/usr/bin/gdbserver localhost:8080' Tools/Scripts/run-minibrowser --gtk --debug 36 39 }}} 37 40 and in a different terminal: 38 41 {{{ 42 #!sh 39 43 $ Tools/Scripts/webkit-flatpak --command=gdb /app/webkit/WebKitBuild/Debug/bin/WebKitWebProcess 40 44 Reading symbols from bin/WebKitWebProcess...done. … … 55 59 * Open a terminal/shell, and enable coredumps 56 60 {{{ 61 #!sh 57 62 ulimit -c unlimited 58 63 }}} … … 61 66 * If it wasn't the case ensure that you have not set the sysctl kernel.core_pattern set to another directory/pipe 62 67 {{{ 68 #!sh 63 69 $ sudo sysctl kernel.core_pattern=core 64 70 }}} 65 71 * Once you have the core, get a backtrace from it as follows: 66 72 {{{ 73 #!sh 67 74 gdb --batch -ex "thread apply all bt full" /full/path/to/WebKitWebProcess core &> backtrace.txt 68 75 }}} … … 76 83 * You can now manually demangle those symbols by piping the output as follows 77 84 {{{ 85 #!sh 78 86 cat backtrace.txt | c++filt 79 87 }}} … … 83 91 84 92 {{{ 93 #!sh 85 94 $ Tools/Scripts/webkit-flatpak --gdb -m WebKitWebProcess 86 95 (gdb) t a a bt … … 90 99 91 100 {{{ 101 #!sh 92 102 $ Tools/Scripts/webkit-flatpak --gdb-stack-trace -m WebKitWebProcess 93 103 }}} … … 160 170 == Related == 161 171 162 * [wiki:"GDB" Tips for debugging using GDB]163 172 * [wiki:WebKitGTK/TrackingMemoryErrors Tracking memory errors in WebKitGTK+] 164 173 * [wiki:/EnvironmentVariables List of WebKit environment variables]
