Re: [PATCH v5 27/35] init_module.2: Use syscall(SYS_...); for system calls without a wrapper

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Hi Alex,

On 4/4/21 1:58 PM, Alejandro Colomar wrote:
> Signed-off-by: Alejandro Colomar <alx.manpages@xxxxxxxxx>
> ---
>  man2/init_module.2 | 20 ++++++++------------
>  1 file changed, 8 insertions(+), 12 deletions(-)


Patch applied.

Thanks,

Michael


> diff --git a/man2/init_module.2 b/man2/init_module.2
> index e158ce9fa..13d1b7f0a 100644
> --- a/man2/init_module.2
> +++ b/man2/init_module.2
> @@ -29,14 +29,15 @@
>  init_module, finit_module \- load a kernel module
>  .SH SYNOPSIS
>  .nf
> -.BI "int init_module(void *" module_image ", unsigned long " len ,
> -.BI "                const char *" param_values );
> -.BI "int finit_module(int " fd ", const char *" param_values ,
> -.BI "                 int " flags );
> -.fi
> +.BR "#include <linux/module.h>" "    /* Definition of " MODULE_* " constants */"
> +.BR "#include <sys/syscall.h>" "     /* Definition of " SYS_* " constants */"
> +.B #include <unistd.h>
>  .PP
> -.IR Note :
> -There are no glibc wrappers for these system calls; see NOTES.
> +.BI "int syscall(SYS_init_module, void *" module_image ", unsigned long " len ,
> +.BI "            const char *" param_values );
> +.BI "int syscall(SYS_finit_module, int " fd ", const char *" param_values ,
> +.BI "            int " flags );
> +.fi
>  .SH DESCRIPTION
>  .BR init_module ()
>  loads an ELF image into kernel space,
> @@ -268,11 +269,6 @@ manually declare the interface in your code;
>  alternatively, you can invoke the system call using
>  .BR syscall (2).
>  .PP
> -Glibc does not provide a wrapper for
> -.BR finit_module ();
> -call it using
> -.BR syscall (2).
> -.PP
>  Information about currently loaded modules can be found in
>  .IR /proc/modules
>  and in the file trees under the per-module subdirectories under
> 


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/



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