patches/gcc/4.2.1/290-sh-without-headers.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:43:07 2011 +0200 (2011-07-17)
changeset 2893 a8a65758664f
permissions -rw-r--r--
cc/gcc: do not use the core pass-2 to build the baremetal compiler

In case we build a baremetal compiler, use the standard passes:
- core_cc is used to build the C library;
- as such, it is meant to run on build, not host;
- the final compiler is meant to run on host;

As the current final compiler step can not build a baremetal compiler,
call the core backend from the final step.

NB: Currently, newlib is built during the start_files pass, so we have
to have a core compiler by then... Once we can build the baremetal
compiler from the final cc step, then we can move the newlib build to
the proper step, and then get rid of the core pass-1 static compiler...

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