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patches/gcc/4.3.2/330-unwind-for-uClibc.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
parent 766 717efd8b78b4
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 diff -durN gcc-4.3.1.orig/gcc/config/t-linux-uclibc gcc-4.3.1/gcc/config/t-linux-uclibc

     2 --- gcc-4.3.1.orig/gcc/config/t-linux-uclibc	1970-01-01 01:00:00.000000000 +0100

     3 +++ gcc-4.3.1/gcc/config/t-linux-uclibc	2008-07-29 13:07:15.000000000 +0200

     4 @@ -0,0 +1,5 @@

     5 +# Remove glibc specific files added in t-linux

     6 +SHLIB_MAPFILES := $(filter-out $(srcdir)/config/libgcc-glibc.ver, $(SHLIB_MAPFILES))

     7 +

     8 +# Use unwind-dw2-fde instead of unwind-dw2-fde-glibc

     9 +LIB2ADDEH := $(subst unwind-dw2-fde-glibc.c,unwind-dw2-fde.c,$(LIB2ADDEH))

    10 diff -durN gcc-4.3.1.orig/gcc/config.gcc gcc-4.3.1/gcc/config.gcc

    11 --- gcc-4.3.1.orig/gcc/config.gcc	2008-07-29 13:11:02.000000000 +0200

    12 +++ gcc-4.3.1/gcc/config.gcc	2008-07-29 13:10:05.000000000 +0200

    13 @@ -2651,6 +2651,12 @@

    14  	;;

    15  esac

    16  

    17 +# Rather than hook into each target, just do it after all the linux

    18 +# targets have been processed

    19 +case ${target} in

    20 +  *-linux-uclibc*) tm_defines="${tm_defines} USE_UCLIBC" ; tmake_file="${tmake_file} t-linux-uclibc";;

    21 +esac

    22 +

    23  case ${target} in

    24  i[34567]86-*-linux*aout* | i[34567]86-*-linux*libc1)

    25  	tmake_file="${tmake_file} i386/t-gmm_malloc"
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