From: Denys Vlasenko Date: Fri, 23 Mar 2012 22:02:42 +0000 (-0700) Subject: ptrace: renumber PTRACE_EVENT_STOP so that future new options and events can match X-Git-Tag: v3.4-rc1~109^2~21 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5cdf389aee90109e2e3d88085dea4dd5508a3be7;p=platform%2Fkernel%2Flinux-stable.git ptrace: renumber PTRACE_EVENT_STOP so that future new options and events can match PTRACE_EVENT_foo and PTRACE_O_TRACEfoo used to match. New PTRACE_EVENT_STOP is the first event which has no corresponding PTRACE_O_TRACE option. If we will ever want to add another such option, its PTRACE_EVENT's value will collide with PTRACE_EVENT_STOP's value. This patch changes PTRACE_EVENT_STOP value to prevent this. While at it, added a comment - the one atop PTRACE_EVENT block, saying "Wait extended result codes for the above trace options", is not true for PTRACE_EVENT_STOP. Signed-off-by: Denys Vlasenko Cc: Tejun Heo Reviewed-by: Oleg Nesterov Cc: Pedro Alves Cc: Jan Kratochvil Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h index 6f1260e..30be180 100644 --- a/include/linux/ptrace.h +++ b/include/linux/ptrace.h @@ -61,7 +61,8 @@ #define PTRACE_EVENT_EXEC 4 #define PTRACE_EVENT_VFORK_DONE 5 #define PTRACE_EVENT_EXIT 6 -#define PTRACE_EVENT_STOP 7 +/* Extended result codes which enabled by means other than options. */ +#define PTRACE_EVENT_STOP 128 /* options set using PTRACE_SETOPTIONS */ #define PTRACE_O_TRACESYSGOOD 1