TotalView User Guide : Part V: Debugging : Setting Action Points : Using Watchpoints : Triggering Watchpoints

Triggering Watchpoints
When a watchpoint triggers, the thread’s program counter (PC) points to the instruction following the instruction that caused the watchpoint to trigger. If the memory store instruction is the last instruction in a source statement, the PC points to the source line following the statement that triggered the watchpoint. (Breakpoints and watchpoints work differently. A breakpoint stops before an instruction executes. In contrast, a watchpoint stops after an instruction executes.)

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