[PATCH, i386] Move common definitions of gnu-user.h and gnu-user64.h to separate file

[Ilya Enkovich]

Hello,

Here is a patch which creates new gnu-user-common.h file and moves all
common gnu-user.h and gnu-user64.h definitions to this new file. New
file is required to avoid duplication of Android specific changes in
gnu-user.h and gnu-user64.h. This patch is actually a non Android
specific part of previously submitted patch to support Android in x86
target (http://gcc.gnu.org/ml/gcc-patches/2012-04/msg00127.html).
Bootstrapped and tested on linux-x86_64. Is it OK for mainline and
4.7?

Thanks
Ilya,
---
2012-04-13  Enkovich Ilya  <ilya.enkov...@intel.com>

        * config/i386/gnu-user.h: Include gnu-user-common.h.
        (CPP_SPEC): Removed.
        (CC1_SPEC): Removed.
        (ENDFILE_SPEC): Removed.
        (DEFAULT_PCC_STRUCT_RETURN): Removed.
        (TARGET_TLS_DIRECT_SEG_REFS_DEFAULT): Removed.
        (TARGET_OS_CPP_BUILTINS): Removed.
        (LIBGCC2_HAS_TF_MODE): Removed.
        (LIBGCC2_TF_CEXT): Removed.
        (TF_SIZE): Removed.
        (TARGET_ASM_FILE_END): Removed.
        (STACK_CHECK_MOVING_SP): Removed.
        (STACK_CHECK_STATIC_BUILTIN): Removed.
        (TARGET_THREAD_SSP_OFFSET): Removed.
        (TARGET_CAN_SPLIT_STACK): Removed.
        (TARGET_THREAD_SPLIT_STACK_OFFSET): Removed.

        * config/i386/gnu-user64.h: Likewise.

        * config/i386/gnu-user-common.h: New.

mandroid.patch
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