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([2001:a61:3a2d:1d01:e14:1e8b:dca4:7d73]) by smtp.gmail.com with ESMTPSA id a9sm22256561wrn.60.2021.02.15.11.56.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 15 Feb 2021 11:56:15 -0800 (PST) Cc: mtk.manpages@gmail.com, linux-man@vger.kernel.org Subject: Re: [PATCH] socketcall.2: Add note about missing glibc wrapper To: Alejandro Colomar References: <20210215131522.450666-3-alx.manpages@gmail.com> From: "Michael Kerrisk (man-pages)" Message-ID: <8d9fa5cf-b2e8-1588-5ac0-d871decb1690@gmail.com> Date: Mon, 15 Feb 2021 20:56:15 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <20210215131522.450666-3-alx.manpages@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org Hi Alex, On 2/15/21 2:15 PM, Alejandro Colomar wrote: > ...... > > .../glibc$ grep_glibc_prototype socketcall > .../glibc$ > > Signed-off-by: Alejandro Colomar Thanks! Patch applied. Cheers, Michael > --- > man2/socketcall.2 | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/man2/socketcall.2 b/man2/socketcall.2 > index a3012d4c7..d1803d906 100644 > --- a/man2/socketcall.2 > +++ b/man2/socketcall.2 > @@ -31,6 +31,9 @@ socketcall \- socket system calls > .PP > .BI "int socketcall(int " call ", unsigned long *" args ); > .fi > +.PP > +.IR Note : > +There is no glibc wrapper for this system call; see NOTES. > .SH DESCRIPTION > .BR socketcall () > is a common kernel entry point for the socket system calls. > @@ -153,6 +156,9 @@ T} > This call is specific to Linux, 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). > +.PP > On a some architectures\(emfor example, x86-64 and ARM\(emthere is no > .BR socketcall () > system call; instead > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/