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patches/gcc/4.4.0/390-arm-softfloat-libgcc.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 [PATCH] add the correct symbols to libgcc for uclibc arm softfloat

     2 

     3 Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

     4 ---

     5  gcc/config/arm/linux-elf.h |    2 +-

     6  gcc/config/arm/t-linux     |    6 +++++-

     7  2 files changed, 6 insertions(+), 2 deletions(-)

     8 

     9 Index: gcc-4.4.0/gcc/config/arm/t-linux

    10 ===================================================================

    11 --- gcc-4.4.0.orig/gcc/config/arm/t-linux

    12 +++ gcc-4.4.0/gcc/config/arm/t-linux

    13 @@ -4,7 +4,11 @@

    14  

    15  LIB1ASMSRC = arm/lib1funcs.asm

    16  LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \

    17 -	_arm_addsubdf3 _arm_addsubsf3

    18 +	_arm_addsubdf3 _arm_addsubsf3 \

    19 +	_arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \

    20 +	_arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \

    21 +	_arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \

    22 +	_arm_fixsfsi _arm_fixunssfsi

    23  

    24  # MULTILIB_OPTIONS = mhard-float/msoft-float

    25  # MULTILIB_DIRNAMES = hard-float soft-float

    26 Index: gcc-4.4.0/gcc/config/arm/linux-elf.h

    27 ===================================================================

    28 --- gcc-4.4.0.orig/gcc/config/arm/linux-elf.h

    29 +++ gcc-4.4.0/gcc/config/arm/linux-elf.h

    30 @@ -60,7 +60,7 @@

    31     %{shared:-lc} \

    32     %{!shared:%{profile:-lc_p}%{!profile:-lc}}"

    33  

    34 -#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"

    35 +#define LIBGCC_SPEC "-lgcc"

    36  

    37  #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"

    38
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