Include more of sys/types.h and sys/signal.h under NaCl

Include more of sys/types.h and sys/signal.h under NaCl

sys/types.h: define types needed to for BSD socket headers.
sys/socket.h: include sigaction declaration.

These files are currently forked in the NaCl SDK.  Landing
this change upstream in newlib will allows us to unfork them.

BUG= https://code.google.com/p/chromium/issues/detail?id=315196
R=mseaborn@chromium.org

Committed: https://git.chromium.org/gitweb?p=native_client/nacl-newlib.git;a=commit;h=489f1d8

[Mark Seaborn, 2013-11-20 18:42:25]

LGTM.  Please make sure the PNaCl toolchain trybots pass with this change.

https://codereview.chromium.org/79003002/diff/30001/newlib/libc/include/sys/t...
File newlib/libc/include/sys/types.h (right):

https://codereview.chromium.org/79003002/diff/30001/newlib/libc/include/sys/t...
newlib/libc/include/sys/types.h:29: *  The following section is RTEMS/NaCl
specific and is needed to more
I'm not sure saying it's NaCl-specific is really accurate.  This block looks
generic to me.

AFAIK, all the "#if defined(__rtems__)" conditionals really mean "if not Cygwin"
and maybe "if not Linux", since the Cygwin/Linux versions override a load of
headers, and other versions aren't very well supported.

Maybe just say "The following section is needed to more closely match...".

[Sam Clegg, 2013-11-23 01:37:50]

https://codereview.chromium.org/79003002/diff/30001/newlib/libc/include/sys/t...
File newlib/libc/include/sys/types.h (right):

https://codereview.chromium.org/79003002/diff/30001/newlib/libc/include/sys/t...
newlib/libc/include/sys/types.h:29: *  The following section is RTEMS/NaCl
specific and is needed to more
On 2013/11/20 18:42:25, Mark Seaborn wrote:
> I'm not sure saying it's NaCl-specific is really accurate.  This block looks
> generic to me.
> 
> AFAIK, all the "#if defined(__rtems__)" conditionals really mean "if not
Cygwin"
> and maybe "if not Linux", since the Cygwin/Linux versions override a load of
> headers, and other versions aren't very well supported.
> 
> Maybe just say "The following section is needed to more closely match...".

Done.

[Sam Clegg, 2013-11-25 18:49:07]

Committed patchset #3 manually as r489f1d8 (presubmit successful).