Hello, X86 has 4 hardware debug registers, which could be used to implement watchpoints in debuggers. I checked gdb maillist and some gdb code to find out that gdb uses ptrace to set up hardware debug registers. I'm not familiar with details of ptrace syscall, but I know that a process can not ptrace itself. So there has to be a third-part program such as gdb to call ptrace. My question is: is there any approach to use debugger registers directly without using a third-party program? I mean to implement gdb's watchpoint in user program, so that I can set up hardware watchpoints manually and conveniently without gdb, any suggestions? thx Leo -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
