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patches/gcc/4.2.0/290-sh-without-headers.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:46:47 2011 +0200 (2011-07-17)
changeset 2892 aa934ec4b4ee
permissions -rw-r--r--
cc/gcc: add the backend/frontend infra for final gcc

Currently, we issue the bare-metal compiler from the pass_1 & pass_2
core compilers, because the final gcc breaks while doing so.

This implies we have to build some libces during the start_files step,
instead of the standard libc step. This is the case for newlib.

By adding a backend/frontend infra to the final gcc, we can abstract
what backend to call: the standard backend for non-bare-metal gcc,
and the core backend for bare-metal.

This patch is just an no-op, it just adds the final backend and
frontend without changing the way bare-metal is built, to come in a
subsequent patch.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 On 20081011, Khem RAJ writes:

     2  You have to bar gcc trying to build unwinding at stage 1. Try the

     3  attached patch and see if it helps.

     4 

     5  gcc/config/sh/linux-unwind.h |    3 +++

     6  1 file changed, 3 insertions(+)

     7 

     8 Index: gcc-4_2-branch/gcc/config/sh/linux-unwind.h

     9 ===================================================================

    10 --- gcc-4_2-branch.orig/gcc/config/sh/linux-unwind.h	2008-07-01 17:24:40.000000000 -0700

    11 +++ gcc-4_2-branch/gcc/config/sh/linux-unwind.h	2008-07-01 17:25:47.000000000 -0700

    12 @@ -26,6 +26,8 @@ along with this program; see the file CO

    13  the Free Software Foundation, 51 Franklin Street, Fifth Floor,

    14  Boston, MA 02110-1301, USA.  */

    15  

    16 +#ifndef inhibit_libc

    17 +

    18  /* Do code reading to identify a signal frame, and set the frame

    19     state data appropriately.  See unwind-dw2.c for the structs.  */

    20  

    21 @@ -251,3 +253,4 @@ sh_fallback_frame_state (struct _Unwind_

    22    return _URC_NO_REASON;

    23  }

    24  #endif /* defined (__SH5__) */

    25 +#endif /* ifndef inhibit_libc */

    26
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