[PATCH arm] synchronize newlib/libc/sys/arm with libgloss/arm

[Bin Cheng]

Sorry for that.
Now attached the patch.

Thanks very much!

> -----Original Message-----
> From: Bin Cheng [mailto:bin.cheng@arm.com]
> Sent: Monday, November 07, 2011 5:15 PM
> To: 'newlib@sources.redhat.com'
> Cc: 'Nick Clifton'
> Subject: [PATCH arm] synchronize newlib/libc/sys/arm with libgloss/arm
> 
> Hi,
> I am synchronizing the newlib/libc/sys/arm with libgloss/arm.
> The arm.h and crt0.S have already been synced, here comes this patch
finishing
> the work.
> 
> It is basically straight forward copying from libgloss/arm to
> newlib/libc/sys/arm.
> As for the changes of newlib/libc/sys/arm itself, it includes:
> 1, synchronize the implementation of existing functions from libgloss,
most in
> syscalls.c;
> 2, add posix library functions in libc/sys/libcfunc.c by copying it from
> libgloss, such as clock/isatty, etc.;
> 3, reorganize the source files, for example, spilt _exit.c/_kill.c from
> syscalls.c as libgloss;
> 4, keep aeabi_atexit.c;
> 5, minor code changes...
> 
> I tested it by configuring newlib with “--enable-newlib-supplied-syscalls”
and
> building newlib
> for various arm targets successfully.
> 
> Is it OK?
> 
> Thanks
> 
> 2011-11-07  Bin Cheng  <bin.cheng@arm.com>
> 
> 	* libc/sys/arm/syscalls.c: Synchronize from libgloss/arm/syscalls.c.
> 	* libc/sys/arm/libcfunc.c: Synchronize from libgloss/arm/libcfunc.c.
> 	* libc/sys/arm/trap.S: Synchronize from libgloss/arm/trap.S.
> 	* libc/sys/arm/swi.h: Synchronize from libgloss/arm/swi.h.
> 	* libc/sys/arm/_exit.c: New file, Synchronize from
libgloss/arm/_exit.c.
> 	* libc/sys/arm/_kill.c: New file, Synchronize from
libgloss/arm/_kill.c.
> 	* libc/sys/arm/Makefile.am (extra_objs): Add _exit.o and _kill.o.
> 	(EXTRA_lib_a_SOURCES): Add _exit.c and _kill.c.
> 	* libc/sys/arm/Makefile.in: Regenerate.
> 	* libgloss/arm/syscals.c (_lseek): Add return type.
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