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 [PATCH] add the correct symbols to libgcc for uclibc arm softfloat
3 Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
5 gcc/config/arm/linux-elf.h | 2 +-
6 gcc/config/arm/t-linux | 6 +++++-
7 2 files changed, 6 insertions(+), 2 deletions(-)
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
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
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
32 %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
34 -#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
35 +#define LIBGCC_SPEC "-lgcc"
37 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"