diff options
| author | Denys Vlasenko <vda.linux@googlemail.com> | 2012-03-23 15:02:42 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-23 16:58:41 -0700 |
| commit | 5cdf389aee90109e2e3d88085dea4dd5508a3be7 (patch) | |
| tree | ab59bc0fef6800ea6bbe20a1828bd396094bfbf8 | |
| parent | aa9147c98f27550bd39416eca5a5844e54bced26 (diff) | |
| download | linux-5cdf389aee90109e2e3d88085dea4dd5508a3be7.tar.gz | |
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 <vda.linux@googlemail.com> Cc: Tejun Heo <tj@kernel.org> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Cc: Pedro Alves <palves@redhat.com> Cc: Jan Kratochvil <jan.kratochvil@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/ptrace.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h index 6f1260ee5be5..30be18064dfd 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 |