@@ -29,16 +29,21 @@
perf_event_open \- set up performance monitoring
.SH SYNOPSIS
.nf
-.B #include <linux/perf_event.h>
-.B #include <linux/hw_breakpoint.h>
+.BR "#include <linux/perf_event.h>" " /* Definition of " PERF_* " constants */"
+.BR "#include <linux/hw_breakpoint.h>" " /* Definition of " HW_* " constants */"
+.BR "#include <sys/syscall.h>" " /* Definition of " SYS_* " constants */"
+.B #include <unistd.h>
.PP
-.BI "int perf_event_open(struct perf_event_attr *" attr ,
-.BI " pid_t " pid ", int " cpu ", int " group_fd ,
-.BI " unsigned long " flags );
+.BI "int syscall(SYS_perf_event_open, struct perf_event_attr *" attr ,
+.BI " pid_t " pid ", int " cpu ", int " group_fd \
+", unsigned long " flags );
.fi
.PP
.IR Note :
-There is no glibc wrapper for this system call; see NOTES.
+glibc provides no wrapper for
+.BR perf_event_open (),
+necessitating the use of
+.BR syscall (2).
.SH DESCRIPTION
Given a list of parameters,
.BR perf_event_open ()
@@ -3641,10 +3646,6 @@ This
system call Linux-specific
and should not be used in programs intended to be portable.
.SH NOTES
-Glibc does not provide a wrapper for this system call; call it using
-.BR syscall (2).
-See the example below.
-.PP
The official way of knowing if
.BR perf_event_open ()
support is enabled is checking
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com> --- man2/perf_event_open.2 | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-)