Integrated debugger Describes the command-line debugger you can use to find bugs in your programs. Understanding the debugger This is an introduction to the integrated debugger. Prerequisites to run the debugger Some requirements are needed before running the integrated debugger. Starting fglrun in debug mode The runtime system can be started in debug mode with the -d option. Attaching to a running program It is possible to start the debugger for a program running on the same computer. Debugging on a mobile device It is possible to remotely start the debugger for an app running on a mobile device. Stack frames in the debugger The stack frame contains information about function call stack. Setting a breakpoint programmatically Set a breakpoint in the program source code with the BREAKPOINT instruction. Expressions in debugger commands A limited expression syntax can be used in debugger commands. Debugger commands This topic lists all debugger commands.