The sixth button will allow the user to run the program until the line on which the cursor lies is reached ( Continue to Cursor). The fifth button allows program execution until either the next breakpoint is reached or execution terminates. The second, third, and fourth allow stepping into, over, or out of subprograms see Stepping for more information on these actions. The first restarts the program being debugged. The remaining icons are normally disabled unless the debugger has already been started. The green insect will start the debugger, similar to the Debug menu entry. Simply Fortran’s toolbar contains buttons for controlling the flow of the debugger. See Watch for more information.Ĭlears all breakpoints. See Watch for more information.Ĭlears all expressions being watched.
SIMPLY FORTRAN DEBUGGER MANUAL
If the cursor is on a line that will not be executed due to a conditional structure, the program will continue indefinitely.Īllows the manual entry of a valid expression to be watched as the program proceeds. Any breakpoints reached prior to reaching the cursor are still respected. If the program is currently paused, this option allows the program to proceed until the line where the cursor lies is reached. If the program is currently paused, this option allows the program to proceed until either the next breakpoint or the program exits. See above for more details.Ĭontrols stepping through the program. Stops the debugger entirely and exits the currently running program.Īttaches to a currently running program rather than starting a program directly. Once started, other debugging options will become available.Ĭauses the debugger to stop the program at its current location, exit the program, and restart it fresh at its main procedure. Starts up the debugger and proceeds to the main procedure of the program. Within the menu, the following options are available: Start The menu offers access to the major components of the debugger. The sections that follow provide a brief overview of the debugger interface. Debugger Interfaceĭebugging controls are located in a number of convenient positions within Simply Fortran. Once attached to the process, the Simply Fortran debugger will continue to operate as if the process was started by Simply Fortran itself. If breakpoints or watches are needed after attaching to the process, these breakpoints and watches must be set prior to attaching to the process. Instead, the process will continue running. When the debugger attaches to a process, the process is not interrupted. By initially loading the project, the user can set breakpoints and add watches related to the shared library prior to attaching to the executable. If the user has a project that creates a shared library used by another program, the project pertaining to said library should first be loaded. This procedure can be especially useful for debugging shared libraries created with Simply Fortran and called by another program or long-running programs experiencing intermittent crashes or other bugs.
Attaching to a Running ProcessĪs an alternative to launching a program directly for debugging, the user may also connect Simply Fortran’s debugger to a running process. Once the debugger has started, the program should proceed to the main procedure where a temporary breakpoint will cause the program to pause. After enabling debugging, be sure to first clean and building the project. If debugging has been disabled in the compiler options, you may receive a warning asking you to first enable the option. When working with a library project, either shared or dynamically linked, starting the debugger from Start in the Debug menu will launch the executable specified in Launch Options. If working with an executable project, the debugger can be started by selecting Start from the Debug menu. As the name suggests, the debugger can make locating and eliminating bugs within a project far simpler than relying purely on program outputs. The debugger seamlessly calls the powerful GNU Debugger to perform this task, but all operations are handled directly by Simply Fortran itself.ĭebugging provides users with the ability to interact with their running programs, setting points at which execution should pause (breakpoints), switching between the current subprogram and the calling subprogram(s) via moving through the call stack, and examining data within the executing program.
The Simply Fortran integrated development environment includes debugging capabilities, allowing users to step through programs, examine variables, and locate runtime bugs. Purchasing and Activating Simply Fortran.
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