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seccomp.2: Reword text describing ENOSYS failure from SECCOMP_RET_TRACE 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2014-11-02 15:04:25 +01:00
parent 33bb5d332f
commit 3fbe3aa3f9
1 changed files with 6 additions and 2 deletions
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8
man2/seccomp.2
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@ -260,9 +260,13 @@ without executing the system call.
.BR SECCOMP_RET_TRACE
When returned, this value will cause the kernel to attempt to
notify a ptrace()-based tracer prior to executing the system call.
.\" FIXME I (mtk) reworded the following sentence substantially.
.\" Please check it.
If there is no tracer present,
.BR ENOSYS
is returned to userland and the system call is not executed.
the system call is not executed and returns a failure status with
.I errno
set to
.BR ENOSYS .
A tracer will be notified if it requests
.BR PTRACE_O_TRACESECCOMP