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[RFC,v3,06/17] clone.2: Use syscall(SYS_...); for system calls without a wrapper

Message ID 20210313192526.350200-7-alx.manpages@gmail.com
State New
Headers show
Series [RFC] execve.2: SYNOPSIS: Document both glibc wrapper and kernel sycalls | expand

Commit Message

Alejandro Colomar March 13, 2021, 7:25 p.m. UTC 
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
---
 man2/clone.2 | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)
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Patch

diff --git a/man2/clone.2 b/man2/clone.2
index 11eb6c622..2f5ecac42 100644
--- a/man2/clone.2
+++ b/man2/clone.2
@@ -56,13 +56,12 @@  clone, __clone2, clone3 \- create a child process
 .PP
 /* For the prototype of the raw clone() system call, see NOTES */
 .PP
-.BI "long clone3(struct clone_args *" cl_args ", size_t " size );
-.fi
+.BR "#include <linux/sched.h>" "    /* Definition of " "struct clone_args" " */"
+.BR "#include <sys/syscall.h>" "    /* Definition of " SYS_* " constants */"
+.B #include <unistd.h>
 .PP
-.IR Note :
-There is no glibc wrapper for
-.BR clone3 ();
-see NOTES.
+.BI "long syscall(SYS_clone3, struct clone_args *" cl_args ", size_t " size );
+.fi
 .SH DESCRIPTION
 These system calls
 create a new ("child") process, in a manner similar to
@@ -1541,11 +1540,6 @@  One use of these systems calls
 is to implement threads: multiple flows of control in a program that
 run concurrently in a shared address space.
 .PP
-Glibc does not provide a wrapper for
-.BR clone3 ();
-call it using
-.BR syscall (2).
-.PP
 Note that the glibc
 .BR clone ()
 wrapper function makes some changes