On Sun, Jul 22, 2012 at 02:14:25PM +0200, Jiri Olsa wrote: > Introducing PERF_SAMPLE_REGS_USER sample type bit to trigger > the dump of user level registers on sample. Registers we want > to dump are specified by sample_regs_user bitmask. > > Only user level registers are dumped at the moment. Meaning the > register values of the user space context as it was before the > user entered the kernel for whatever reason (syscall, irq, > exception, or a PMI happening in userspace). > > The layout of the sample_regs_user bitmap is described in > asm/perf_regs.h for archs that support register dump. > > This is going to be useful to bring Dwarf CFI based stack > unwinding on top of samples. > > Signed-off-by: Jiri Olsa <[email protected]> > Original-patch-by: Frederic Weisbecker <[email protected]>
Acked-by: Frederic Weisbecker <[email protected]> -- 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/
