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

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 <redacted>

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
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