signal: Document the strange si_codes used by ptrace event stops

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2017-06-26 13:09:03 -05:00
parent deaf19c058
commit f9886bc50a
1 changed files with 5 additions and 0 deletions

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@ -225,6 +225,11 @@ typedef struct siginfo {
#define TRAP_HWBKPT 4 /* hardware breakpoint/watchpoint */
#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
*/