Re: [PATCH 0/2] Support compiling out the prctl syscall

[Nicolas Pitre]

On Tue, 8 Nov 2016, Josh Triplett wrote:

> Some embedded systems can do without the prctl syscall, saving some space.
> 
> This also avoids regular increases in tinyconfig size as people add more
> non-optional functionality to prctl (observed via the 0-day kernel
> infrastructure).
> 
> The first patch moves prctl and all its helpers into a separate source file,
> kernel/prctl.c, to allow making it optional via the Makefile without any
> ifdefs.  The second patch adds the Kconfig option to make prctl optional.

Excellent.  For both patches:

Acked-by: Nicolas Pitre <nico@xxxxxxxxxx>

> 
> Josh Triplett (2):
>   kernel: Move prctl and helpers from kernel/sys.c to new kernel/prctl.c
>   kernel: Support compiling out the prctl syscall
> 
>  init/Kconfig    |  12 +-
>  kernel/Makefile |   1 +-
>  kernel/prctl.c  | 684 +++++++++++++++++++++++++++++++++++++++++++++++++-
>  kernel/sys.c    | 672 +------------------------------------------------
>  kernel/sys_ni.c |   1 +-
>  5 files changed, 698 insertions(+), 672 deletions(-)
>  create mode 100644 kernel/prctl.c
> 
> base-commit: e3a00f68e426df24a5fb98956a1bd1b23943aa1e
> -- 
> git-series 0.8.11
>