Chuck Ebbert <[email protected]> writes:
> [...] Renzo Davoli also posted a patch to allow "batching" of
> ptrace requests and Systemptap really needs this, too. AFAICT this
> can be done by writing a custom engine. [...]
Indeed, I like what I see (at least those parts I understand) in
roland's utrace code. One missed opportunity bit appears to be any
new support for something like per-thread breakpoints.
If I correctly understand how gdb etc. work, a hit breakpoint involves
stoppage of all other threads of a process, then the breakpoint
instruction is replaced by the original one, then the thread is
single-stepped, then the breakpoint is put back, then finally all
threads are resumed. Could utrace API provide short-lived per-thread
page copies to execute the single-stepped original instruction out of,
and avoid stopping & resuming all other threads?
- FChE
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
