config/kernel/linux.in.2
author Anthony Foiani <anthony.foiani@gmail.com>
Thu May 19 23:06:16 2011 +0200 (2011-05-19)
changeset 2461 ec30b191f0e3
parent 2420 f5969ca41691
child 2603 461b9c476104
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 # Linux kernel options
     2 
     3 if KERNEL_LINUX_INSTALL
     4 
     5 choice
     6     bool
     7     prompt "Kernel verbosity:"
     8     default KERNEL_LINUX_VERBOSITY_0
     9 
    10 config KERNEL_LINUX_VERBOSITY_0
    11     bool
    12     prompt "Simplified"
    13     help
    14       Print simplified command lines.
    15 
    16 config KERNEL_LINUX_VERBOSITY_1
    17     bool
    18     prompt "Full commands"
    19     help
    20       Print full command lines.
    21 
    22 config KERNEL_LINUX_VERBOSITY_2
    23     bool
    24     prompt "Exec reasons"
    25     help
    26       Print the reasons why a make target is rebuild.
    27 
    28 endchoice
    29 
    30 config KERNEL_LINUX_VERBOSE_LEVEL
    31     int
    32     default 0 if KERNEL_LINUX_VERBOSITY_0
    33     default 1 if KERNEL_LINUX_VERBOSITY_1
    34     default 2 if KERNEL_LINUX_VERBOSITY_2
    35 
    36 config KERNEL_LINUX_INSTALL_CHECK
    37     bool
    38     prompt "Check installed headers"
    39     default y
    40     help
    41       If you are in doubt that installed headers are buggy, say 'Y'
    42       here to have an extra check passed onto the headers.
    43 
    44 endif # KERNEL_LINUX_INSTALL