[PATCH 09/39] ipc.2: Use syscall(SYS_...); for system calls without a wrapper
Alejandro Colomar
alx.manpages@gmail.com
Mon May 10 17:55:18 GMT 2021
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
---
man2/ipc.2 | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/man2/ipc.2 b/man2/ipc.2
index c0ba4651f..f505fa1c9 100644
--- a/man2/ipc.2
+++ b/man2/ipc.2
@@ -27,12 +27,20 @@
ipc \- System V IPC system calls
.SH SYNOPSIS
.nf
-.BI "int ipc(unsigned int " call ", int " first ", unsigned long " second ,
-.BI " unsigned long " third ", void *" ptr ", long " fifth );
+.BR "#include <sys/syscall.h>" " /* Definition of " SYS_* " constants */"
+.B #include <unistd.h>
+.PP
+.BI "int syscall(SYS_ipc, unsigned int " call ", int " first ,
+.BI " unsigned long " second ", unsigned long " third \
+", void *" ptr ,
+.BI " long " fifth );
.fi
.PP
.IR Note :
-There is no glibc wrapper for this system call; see NOTES.
+glibc provides no wrapper for
+.BR ipc (),
+necessitating the use of
+.BR syscall (2).
.SH DESCRIPTION
.BR ipc ()
is a common kernel entry point for the System\ V IPC calls
@@ -56,10 +64,6 @@ system call; instead,
.BR semctl (2),
.BR shmctl (2),
and so on really are implemented as separate system calls.
-.PP
-Glibc does not provide a wrapper for this system call;
-in the unlikely event that you want to call it directly, you can do so using
-.BR syscall (2).
.SH SEE ALSO
.BR msgctl (2),
.BR msgget (2),
--
2.31.1
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