Benjamin Herrenschmidt wrote: > 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
Its good term so I'll use this directly :) Thanks Tiejun > 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