Make x86-32 assembly compatible with LLVM's integrated assembler

Make x86-32 assembly compatible with LLVM's integrated assembler

The NaCl-specific assembly code was originally written/modified for x86-nacl
binutils. This CL makes it also compatible with LLVM's assembler.

* Don't rely on the special symbol NACLENTRYALIGN; instead use a #define
* Disambiguate a couple of instructions using operand size suffixes.

It's not actually necessary to build x86-32 target libraries using LLVM's
assembler, but it's nice to have, and LLVM's assembler generates better code
in a few cases.

R=jvoung@chromium.org
BUG=None

Committed: https://git.chromium.org/gitweb?p=native_client/nacl-newlib.git;a=commit;h=3c481fd19efa9fd05be99ab71d57f37391122c0c

[jvoung (off chromium), 2015-02-26 23:59:14]

otherwise LGTM

https://codereview.chromium.org/961083002/diff/1/newlib/libc/machine/i386/i38...
File newlib/libc/machine/i386/i386mach.h (right):

https://codereview.chromium.org/961083002/diff/1/newlib/libc/machine/i386/i38...
newlib/libc/machine/i386/i386mach.h:16: * written to use), but llvm's assembler
does  not. So use a define for
"does  not" -> "does not"

[Derek Schuff, 2015-02-27 01:31:38]

https://codereview.chromium.org/961083002/diff/1/newlib/libc/machine/i386/i38...
File newlib/libc/machine/i386/i386mach.h (right):

https://codereview.chromium.org/961083002/diff/1/newlib/libc/machine/i386/i38...
newlib/libc/machine/i386/i386mach.h:16: * written to use), but llvm's assembler
does  not. So use a define for
On 2015/02/26 23:59:14, jvoung wrote:
> "does  not" -> "does not"

Done.

[Derek Schuff, 2015-02-27 01:32:11]

Committed patchset #2 (id:20001) manually as
3c481fd19efa9fd05be99ab71d57f37391122c0c (tree was closed).