(2014/03/22 10:00), Steven Rostedt wrote: > On Wed, 05 Mar 2014 20:59:32 +0900 > Masami Hiramatsu <masami.hiramatsu...@hitachi.com> wrote: > >> thunk_ra trace_hardirqs_on_thunk,trace_hardirqs_on_caller >> diff --git a/arch/x86/lib/thunk_64.S b/arch/x86/lib/thunk_64.S >> index a63efd6..92d9fea 100644 >> --- a/arch/x86/lib/thunk_64.S >> +++ b/arch/x86/lib/thunk_64.S >> @@ -8,6 +8,7 @@ >> #include <linux/linkage.h> >> #include <asm/dwarf2.h> >> #include <asm/calling.h> >> +#include <asm/asm.h> >> >> /* rdi: arg1 ... normal C conventions. rax is saved/restored. */ >> .macro THUNK name, func, put_ret_addr_in_rdi=0 >> @@ -25,6 +26,7 @@ >> call \func >> jmp restore >> CFI_ENDPROC >> + _ASM_NOKPROBE(\name) >> .endm >> >> #ifdef CONFIG_TRACE_IRQFLAGS >> @@ -43,3 +45,4 @@ restore: >> RESTORE_ARGS >> ret >> CFI_ENDPROC >> + _ASM_NOKPROBE(restore) >> > > Does kallsyms return something for this? I'm curious to what it does. > It might find something that we didn't expect. Do you have debug code > to list out all the black listed items found at boot up?
Yes, with [19/26] the blacklisted functions are shown in debugfs (kprobes/blacklist) :) Thank you, -- Masami HIRAMATSU IT Management Research Dept. Linux Technology Center Hitachi, Ltd., Yokohama Research Laboratory E-mail: masami.hiramatsu...@hitachi.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
