Contents
How to create a conditional breakpoint in WinDbg?
In WinDbg, you can create a conditional breakpoint by selecting Breakpoints from the Edit menu, entering a new breakpoint address into the Command box, and entering a condition into the Condition box. For example, typing mymod!myFunc+0x3A into the Command box and myVar < 7 into the Condition box is equivalent to issuing the following command:
When to use a conditional breakpoint in Java?
This breakpoint causes a break to occur only if a specific condition is satisfied. The basic syntax for a conditional breakpoint using the j command is as follows: The basic syntax for a conditional breakpoint using the .if token is as follows:
How to create conditional breakpoint with std string?
@OBWANDO (almost) has the solution, but as multiple comments rightly point out, the actual buffer depends on the string size; I see 16 to be the threshold. Prepending a size check to the strcmp on the appropriate buffer works. Tried to use strcmp in gdb8.1 under ubuntu18.04, but it doesn’t work:
Can you use GC from conditional breakpoint command string?
If you are controlling the user-mode debugger from the kernel debugger, you cannot use conditional breakpoints or any other breakpoint command string that contains the gc (Go from Conditional Breakpoint) or g (Go) commands.
Is there way to tell WinDbg to ignore program breakpoints?
Have a look at the Controlling Exceptions and Events page on MSDN. It explains how to use the sx* commands to break, ignore, or print exceptions/events as they happen. This tells the debugger to print a message without breaking when a breakpoint exception (0x80000003) occurs.
When to use GC or go from conditional breakpoint?
If the expression in parentheses is false, the second command will execute. The second command should almost always be a gc (Go from Conditional Breakpoint) command, because this command causes execution to resume in the same manner that was occurring before the breakpoint was hit (stepping, tracing, or free execution).