On Mon, 2011-12-12 at 16:50 +0800, Tiejun Chen wrote: > We need to add a new thread flag, TIF_KPROBE/_TIF_DELAYED_KPROBE, > for handling kprobe operation while exiting exception.
The basic idea is sane, however the instruction emulation isn't per-se kprobe specific. It could be used by xmon too for example. I'd rather use a different name, something like TIF_EMULATE_STACK_STORE or something like that. Cheers, Ben. > Signed-off-by: Tiejun Chen <tiejun.c...@windriver.com> > --- > arch/powerpc/include/asm/thread_info.h | 2 ++ > 1 files changed, 2 insertions(+), 0 deletions(-) > > diff --git a/arch/powerpc/include/asm/thread_info.h > b/arch/powerpc/include/asm/thread_info.h > index 836f231..3378734 100644 > --- a/arch/powerpc/include/asm/thread_info.h > +++ b/arch/powerpc/include/asm/thread_info.h > @@ -112,6 +112,7 @@ static inline struct thread_info > *current_thread_info(void) > #define TIF_FREEZE 14 /* Freezing for suspend */ > #define TIF_SYSCALL_TRACEPOINT 15 /* syscall tracepoint > instrumentation */ > #define TIF_RUNLATCH 16 /* Is the runlatch enabled? */ > +#define TIF_KPROBE 17 /* Is the delayed kprobe operation? */ > > /* as above, but as bit values */ > #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) > @@ -130,6 +131,7 @@ static inline struct thread_info > *current_thread_info(void) > #define _TIF_FREEZE (1<<TIF_FREEZE) > #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT) > #define _TIF_RUNLATCH (1<<TIF_RUNLATCH) > +#define _TIF_DELAYED_KPROBE (1<<TIF_KPROBE) > #define _TIF_SYSCALL_T_OR_A (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \ > _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT) > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
