patches/dmalloc/5.5.2/110-block_size.patch
author Michael Hope <michael.hope@linaro.org>
Thu Sep 29 12:40:42 2011 +1300 (2011-09-29)
changeset 2695 f2495884ca3e
permissions -rw-r--r--
config: add a 'auto' value for the number of parallel jobs

When CT_PARALLEL_JOBS is -1, set the number of parallel jobs to the
number of online CPUs + 1. Update documentation to match.

I find this useful when building in the cloud. You can use the same
.config file and have the build adapt to the number of processors
available. Limited testing shows that NCPUS+1 is faster than NCPUS+0
or NCPUS+2.

Signed-off-by: Michael Hope <michael.hope@linaro.org>
     1 This patch sets the page size to a default 12, that is a 4KiB block size.
     2 Testing for the correct block-size is impossible when cross-compiling.
     3 
     4 It was build up by Yann E. MORIN <yann.morin.1998@anciens.enib.fr> from some
     5 bits gathered from buildroot, which is LGPL v2.1
     6 License for dmalloc is:
     7  * Permission to use, copy, modify, and distribute this software for
     8  * any purpose and without fee is hereby granted, provided that the
     9  * above copyright notice and this permission notice appear in all
    10  * copies, and that the name of Gray Watson not be used in advertising
    11  * or publicity pertaining to distribution of the document or software
    12  * without specific, written prior permission.
    13  *
    14  * Gray Watson makes no representations about the suitability of the
    15  * software described herein for any purpose.  It is provided "as is"
    16  * without express or implied warranty.
    17 
    18 I personnaly believe that the resulting code should therefore be
    19 LGPL v2.1, but don't believe me, ask your lawyers!
    20 
    21 diff -dur dmalloc-5.5.2.orig/configure dmalloc-5.5.2/configure
    22 --- dmalloc-5.5.2.orig/configure	2007-05-14 19:26:14.000000000 +0200
    23 +++ dmalloc-5.5.2/configure	2007-05-18 11:38:25.000000000 +0200
    24 @@ -5306,7 +5306,7 @@
    25  
    26  echo "$as_me:$LINENO: checking basic-block size" >&5
    27  echo $ECHO_N "checking basic-block size... $ECHO_C" >&6
    28 -ac_cv_page_size=0
    29 +ac_cv_page_size=12
    30  if test $ac_cv_page_size = 0; then
    31     if test "$cross_compiling" = yes; then
    32    { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling