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15 .Dt PSETSYSENTRY 3PROC
20 .Nd set system call tracing flags
26 .Fa "struct ps_prochandle *P"
27 .Fa "const sysset_t *set"
31 .Fa "struct ps_prochandle *P"
32 .Fa "const sysset_t *set"
39 set the system call entry and exit tracing flags respectively in the
48 replaces the corresponding set of system call tracing flags entirely
49 with the new set. The system call entry tracing flags cause a thread to
50 stop on entry to the system call and the exit tracing flags cause a
51 thread to stop on return from the system call, before control returns
52 back to the user land process. For more information on the state of the
53 thread and for information on manipulating the
58 Note that only active processes may have their system call tracing flags
59 updated. Process handles that refer to core files, zombie processes,
60 and files do not have fault tracing flags and this function is a no-op
62 .Sh INTERFACE STABILITY