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authorEric W. Biederman <ebiederm@xmission.com>2017-06-26 13:09:03 -0500
committerEric W. Biederman <ebiederm@xmission.com>2018-01-12 14:34:43 -0600
commitf9886bc50a8e49425137f4798fda828136f4e4a9 (patch)
treee796ea81783e4e88bbaa323daac5819c914acbcf
parentdeaf19c058049a584ddb3c6f0b5751552ed1ef64 (diff)
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signal: Document the strange si_codes used by ptrace event stops
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
-rw-r--r--include/uapi/asm-generic/siginfo.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
index cbe1b0cc7a6a..7158421ac911 100644
--- a/include/uapi/asm-generic/siginfo.h
+++ b/include/uapi/asm-generic/siginfo.h
@@ -226,6 +226,11 @@ typedef struct siginfo {
#define NSIGTRAP 4
/*
+ * There are an additional set of SIGTRAP si_codes used by ptrace
+ * that of the form: ((PTRACE_EVENT_XXX << 8) | SIGTRAP)
+ */
+
+/*
* SIGCHLD si_codes
*/
#define CLD_EXITED 1 /* child has exited */
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