patches/gcc/4.3.3/310-arm-softfloat.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 Original patch from: ../4.3.2/310-arm-softfloat.patch
     2 
     3 -= BEGIN original header =-
     4 -= END original header =-
     5 
     6 diff -durN gcc-4.3.3.orig/gcc/config/arm/linux-elf.h gcc-4.3.3/gcc/config/arm/linux-elf.h
     7 --- gcc-4.3.3.orig/gcc/config/arm/linux-elf.h	2007-11-08 14:44:09.000000000 +0100
     8 +++ gcc-4.3.3/gcc/config/arm/linux-elf.h	2009-01-27 22:25:47.000000000 +0100
     9 @@ -60,7 +60,7 @@
    10     %{shared:-lc} \
    11     %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
    12  
    13 -#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
    14 +#define LIBGCC_SPEC "-lgcc"
    15  
    16  #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
    17  
    18 diff -durN gcc-4.3.3.orig/gcc/config/arm/t-linux gcc-4.3.3/gcc/config/arm/t-linux
    19 --- gcc-4.3.3.orig/gcc/config/arm/t-linux	2006-11-09 23:14:27.000000000 +0100
    20 +++ gcc-4.3.3/gcc/config/arm/t-linux	2009-01-27 22:25:47.000000000 +0100
    21 @@ -3,7 +3,12 @@
    22  TARGET_LIBGCC2_CFLAGS = -fomit-frame-pointer -fPIC
    23  
    24  LIB1ASMSRC = arm/lib1funcs.asm
    25 -LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx
    26 +LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func \
    27 +	_call_via_rX _interwork_call_via_rX \
    28 +	_lshrdi3 _ashrdi3 _ashldi3 \
    29 +	_negdf2 _addsubdf3 _muldivdf3 _cmpdf2 _unorddf2 _fixdfsi _fixunsdfsi \
    30 +	_truncdfsf2 _negsf2 _addsubsf3 _muldivsf3 _cmpsf2 _unordsf2 \
    31 +	_fixsfsi _fixunssfsi _floatdidf _floatdisf _floatundidf _floatundisf
    32  
    33  # MULTILIB_OPTIONS = mhard-float/msoft-float
    34  # MULTILIB_DIRNAMES = hard-float soft-float