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Re: Why no hwatch command in gdb ?
Jan Kratochvil <jan.kratochvil@redhat.com> writes:
> [...]
> But it being discussed for upstream kernel that the DR registers access via
> PTRACE_POKEUSER is broken anyway and GDB should use the existing hardware
> watchpoints support in Linux kernel perf via some higher level interface
> (still probably through the ptrace syscall).
While a new kernel interface wouldn't be able to fabricate any
hardware-watchpoint resources after they're exhausted, a properly
designed one should be able to evaluate software watchpoints much
faster.
- FChE