X86/X64 Hardware Breakpoint Manager
I wanted to create a flexible, hardware breakpoint system that can be easily dropped into projects without the reliance of multiple dependencies.
In order to establish a hardware breakpoint, the class HardwareBreakpoint must be instantiated. The constructor takes two arguments.
| Argument | Description |
|---|---|
| singleThread | Determines whether the breakpoint should only exist on the current thread, if set to false, every thread including newly spawned threads will be modified. |
| runOnce | Determines if the breakpoint should be disabled after it is hit once. |
Once the class is made, breakpoints can be created. Optionally, a BreakpointHandler can be added to HardwareBreakpoint::Create. BreakpointHandlers are hooks or notifications used when the breakpoint is hit.
Multiple examples are included in Main.cpp.
https://en.wikipedia.org/wiki/X86_debug_register
https://wiki.osdev.org/CPU_Registers_x86-64#DR7
http://x86asm.net/articles/debugging-in-amd64-64-bit-mode-in-theory/