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-rw-r--r--include/linux/ptrace.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 53132cd80429..f18247125091 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -63,6 +63,7 @@
#define PT_TRACE_EXEC 0x00000080
#define PT_TRACE_VFORK_DONE 0x00000100
#define PT_TRACE_EXIT 0x00000200
+#define PT_ATTACHED 0x00000400 /* parent != real_parent */
#define PT_TRACE_MASK 0x000003f4