On Oct 8, 2015, at 7:01 PM, AKASHI Takahiro wrote: Hi Akashi,
> Function graph tracer modifies a return address (LR) in a stack frame > to hook a function return. This will result in many useless entries > (return_to_handler) showing up in a stack tracer's output. > > This patch replaces such entries with originals values preserved in > current->ret_stack[]. > > Signed-off-by: AKASHI Takahiro <[email protected]> The following diff should be folded into this patch, not [7/7] one, to address build breakage. ----8<---- diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c index 407991b..7126d4d 100644 --- a/arch/arm64/kernel/stacktrace.c +++ b/arch/arm64/kernel/stacktrace.c @@ -17,6 +17,7 @@ */ #include <linux/kernel.h> #include <linux/export.h> +#include <linux/ftrace.h> #include <linux/sched.h> #include <linux/stacktrace.h> ----8<---- Best Regards Jungseok Lee -- 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/
