patches/gcc/4.3.4/310-arm-softfloat.patch
author Anthony Foiani <anthony.foiani@gmail.com>
Thu May 19 23:06:16 2011 +0200 (2011-05-19)
changeset 2461 ec30b191f0e3
permissions -rw-r--r--
complibs/ppl: build only C and C++ interfaces for PPL

By default, PPL wants to build interfaces for any of a variety of
langauges it finds on the local host (python, java, possibly perl, also
more esoteric languages such as ocaml and prolog).

These extra interfaces can double the compile time for the library. For
single-process builds, I found a savings of more than 40%:

default / j1: 716s total, 143.2s avg, 0.52s stdev
just_c / j1: 406s total, 81.2s avg, 0.33s stdev
just_c_cpp / j1: 413s total, 82.6s avg, 0.22s stdev

And for multi-process builds, it approached 50%:

default / j4: 625s total, 125.0s avg, 0.57s stdev
just_c / j4: 338s total, 67.6s avg, 1.25s stdev
just_c_cpp / j4: 327s total, 65.4s avg, 0.36s stdev

Since the PPL we build within ct-ng is only used by GCC, we only need to
build the C and C++ interfaces.

Signed-Off-By: Anthony Foiani <anthony.foiani@gmail.com>
     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