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From: Alejandro Colomar <alx.manpages@gmail.com>
To: mtk.manpages@gmail.com
Cc: Alejandro Colomar <alx.manpages@gmail.com>,
	linux-man@vger.kernel.org, libc-alpha@sourceware.org,
	linux-kernel@vger.kernel.org, Florian Weimer <fweimer@redhat.com>
Subject: [RFC v3 13/17] getunwind.2: Use syscall(SYS_...); for system calls without a wrapper
Date: Sat, 13 Mar 2021 20:25:23 +0100	[thread overview]
Message-ID: <20210313192526.350200-14-alx.manpages@gmail.com> (raw)
In-Reply-To: <20210214133907.157320-1-alx.manpages@gmail.com>

Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
---
 man2/getunwind.2 | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/man2/getunwind.2 b/man2/getunwind.2
index 9a58f43e4..3490a0617 100644
--- a/man2/getunwind.2
+++ b/man2/getunwind.2
@@ -29,16 +29,14 @@
 getunwind \- copy the unwind data to caller's buffer
 .SH SYNOPSIS
 .nf
-.B #include <syscall.h>
 .B #include <linux/unwind.h>
+.BR "#include <sys/syscall.h>" "      /* Definition of " SYS_* " constants */"
+.B #inlcude <unistd.h>
 .PP
-.BI "long getunwind(void " *buf ", size_t " buf_size );
+.BI "long syscall(SYS_getunwind, void " *buf ", size_t " buf_size );
 .fi
-.PP
-.IR Note :
-There is no glibc wrapper for this system call; see NOTES.
 .SH DESCRIPTION
-.I Note: this function is obsolete.
+.I Note: this system call is obsolete.
 .PP
 The
 IA-64-specific
@@ -102,9 +100,5 @@ and is available only on the IA-64 architecture.
 This system call has been deprecated.
 The modern way to obtain the kernel's unwind data is via the
 .BR vdso (7).
-.PP
-Glibc does not provide a wrapper for this system call;
-in the unlikely event that you want to call it, use
-.BR syscall (2).
 .SH SEE ALSO
 .BR getauxval (3)
-- 
2.30.2


  parent reply	other threads:[~2021-03-13 19:27 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-14 13:39 [RFC] execve.2: SYNOPSIS: Document both glibc wrapper and kernel sycalls Alejandro Colomar
2021-02-18 12:27 ` Michael Kerrisk (man-pages)
2021-02-18 14:01   ` Alejandro Colomar (man-pages)
2021-02-18 15:13     ` [RFC v2] " Alejandro Colomar
2021-02-19 12:39       ` Michael Kerrisk (man-pages)
2021-02-19 12:56         ` Alejandro Colomar (man-pages)
2021-02-26 11:52           ` Alejandro Colomar (man-pages)
2021-03-13 19:25 ` [RFC v3 00/17] man2: Use syscall(SYS_...); for system calls without a wrapper Alejandro Colomar
2021-03-13 19:25 ` [RFC v3 01/17] access.2: " Alejandro Colomar
2021-03-13 19:25 ` [RFC v3 02/17] alloc_hugepages.2: " Alejandro Colomar
2021-03-13 19:25 ` [RFC v3 03/17] arch_prctl.2: " Alejandro Colomar
2021-03-13 19:25 ` [RFC v3 04/17] arch_prctl.2: SYNOPSIS: Remove unused includes Alejandro Colomar
2021-03-15 18:00   ` AW: " Walter Harms
2021-03-16 16:50     ` Alejandro Colomar (man-pages)
2021-03-13 19:25 ` [RFC v3 05/17] capget.2: Use syscall(SYS_...); for system calls without a wrapper Alejandro Colomar
2021-03-13 19:25 ` [RFC v3 06/17] clone.2: " Alejandro Colomar
2021-03-13 19:25 ` [RFC v3 07/17] delete_module.2: wfix Alejandro Colomar
2021-03-13 19:25 ` [RFC v3 08/17] epoll_wait.2: Use syscall(SYS_...); for system calls without a wrapper Alejandro Colomar
2021-03-13 19:25 ` [RFC v3 09/17] execveat.2: " Alejandro Colomar
2021-03-13 19:25 ` [RFC v3 10/17] exit_group.2: " Alejandro Colomar
2021-03-13 19:25 ` [RFC v3 11/17] futex.2: " Alejandro Colomar
2021-03-13 19:25 ` [RFC v3 12/17] getdents.2: " Alejandro Colomar
2021-03-13 19:25 ` Alejandro Colomar [this message]
2021-03-13 19:25 ` [RFC v3 14/17] get_robust_list.2: " Alejandro Colomar
2021-03-13 19:25 ` [RFC v3 16/17] init_module.2: " Alejandro Colomar
2021-03-13 19:25 ` [RFC v3 17/17] ioprio_set.2: " Alejandro Colomar

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