How to debug DLL in Delphi?

Add some breakpoints in your DLL code and then click run. Your exe will be loaded and you can debug the DLL parts in the Delphi IDE….Be sure to:

  1. Enable all debug options on all projects (DLL file(s)). And disable optimization.
  2. Be sure to set the host application to the right EXE file.
  3. Build DLL file(s).

How do you breakpoint in Delphi?

To set a breakpoint, double click one of the blue dots. (A large red dot indicates that a breakpoint is set.) When the program executes that line, normal execution will halt and the Delphi IDE will allow you view (and change) the current values of most variables (including object/component properties).

How to set breakpoint in gdb?

You can also set breakpoints on function names. To do this, just type “break [functionname]”. gdb will stop your program just before that function is called. Breakpoints stay set when your program ends, so you do not have to reset them unless you quit gdb and restart it.

What is breakpoint for?

Breakpoints are one of the most important debugging techniques in your developer’s toolbox. You set breakpoints wherever you want to pause debugger execution. For example, you may want to see the state of code variables or look at the call stack at a certain breakpoint.

How do I skip a breakpoint in GDB?

To skip a breakpoint a certain number of times, we use the ignore command. The ignore command takes two arguments: the breakpoint number to skip, and the number of times to skip it. (gdb) ignore 2 5 Will ignore next 5 crossings of breakpoint 2.

What is a GDB breakpoint?

A breakpoint makes your program stop whenever a certain point in the program is reached. For each breakpoint, you can add conditions to control in finer detail whether your program stops. You can arrange to have values from your program displayed automatically whenever GDB stops at a breakpoint.

What is C# breakpoint?

A breakpoint, in the context of C#, is an intentional stop marked in the code of an application where execution pauses for debugging. A breakpoint helps to speed up the debugging process in a large program by allowing the execution to continue up to a desired point before debugging begins.

What does breakpoint mean in coding?

A breakpoint is a point in the program where the code will stop executing. For example, if the programmer amended the logic error in the trace table example they may wish to trigger a break point at line 5 in the algorithm.

What is a gdb breakpoint?

Which command would you use if you wanted to continue the execution of your program until it reaches the next breakpoint?

You could set a breakpoint on the next line and select Debug→Start/Continue to continue executing the program to the next line if you wanted; however, since this is such a common thing to do, Code::Blocks provides the Debug→Next Line option, which means, “Execute the program to the next line.”

What does N do in GDB?

Execution stops when control reaches a different line of code at the original stack level that was executing when you gave the next command. This command is abbreviated n . An argument count is a repeat count, as for step . The next command only stops at the first instruction of a source line.

Which command is used to delete the breakpoint?

Enable the specified breakpoints to work once, then die. GDB deletes any of these breakpoints as soon as your program stops there. Breakpoints set by the tbreak command start out in this state.

Why are breakpoints not usable in Delphi XE?

In Delphi 2009 by deleting .dproj file I made the breakpoints work again. In Delphi XE I am not able to make breakopints appear. I have update 1 with all hotfixes applied.

How to debug a DLL project in Delphi?

Go to the Control panel – System – Advanced panel. Click on Environment variables. Add the absolute path of the dll to debug in the system paths. Reboot the machine. Your DLL project is in another directory than the other projects (possibly just if different from last project in list).

What is the assembler code for int 3 in Delphi?

Finally I figured out, that the char that appeared in my texts always was an $CC – which exactly is the assembler code for INT 3, the code that delphi is using for setting a breakpoint. And when moving a breakpoint within that unit a line up or down, the position of the changed character also moves some chars left or right!

Why does Delphi say source has changed since last build?

This lessens the chance of Delphi stating (while e.g. stepping from a breakpoint): The source has changed since last build. Although this can be caused by other things (in my experience at least) a primary reason seems to be a CR/LF problem that exists in Delphi: The IDE and compiler disagree on end-of-line.