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perf_event_open.2: Tweaks to Vince Weaver's "document new comm_exec flag" patch 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2014-08-15 21:19:34 +02:00
parent 49bc411c34
commit 5ab35ae520
1 changed files with 7 additions and 6 deletions
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13
man2/perf_event_open.2
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@ -997,11 +997,11 @@ The
flag must also be set for this to work. flag must also be set for this to work.
.TP .TP
.IR "comm_exec" " (since Linux 3.16)" .IR "comm_exec" " (since Linux 3.16)"
This is purely a feature detection flag, it does not change This is purely a feature-detection flag, it does not change
kernel behavior. kernel behavior.
If this flag can successfully be set, then when If this flag can successfully be set, then, when
.I comm .I comm
is enabled a is enabled, the
.B PERF_RECORD_MISC_COMM_EXEC .B PERF_RECORD_MISC_COMM_EXEC
flag will be set in the flag will be set in the
.I misc .I misc
@ -1676,7 +1676,8 @@ This record indicates a change in the process name.
.nf .nf
struct { struct {
struct perf_event_header header; struct perf_event_header header;
u32 pid, tid; u32 pid;
u32 tid;
char comm[]; char comm[];
struct sample_id sample_id; struct sample_id sample_id;
}; };
@ -1685,10 +1686,10 @@ struct {
.RS .RS
.TP .TP
.I pid .I pid
is the process id. is the process ID.
.TP .TP
.I tid .I tid
is the thread id. is the thread ID.
.TP .TP
.I comm .I comm
is a string containing the new name of the process. is a string containing the new name of the process.