patches/binutils/2.16.1a/150-stabs-tweak.patch
author Michael Hope <michael.hope@linaro.org>
Thu Sep 29 12:40:42 2011 +1300 (2011-09-29)
changeset 2695 f2495884ca3e
parent 402 197e1b49586e
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 Signed-off-by: dank@kegel.com
     2 
     3 See http://sourceware.org/ml/binutils/2005-12/msg00270.html
     4 http://sourceware.org/ml/binutils-cvs/2005-12/msg00139.html
     5 
     6 STABS hash table size change, backported from the binutils CVS tree.  Here's
     7 the CVS log comment for the original change:
     8 
     9 revision 1.25
    10 date: 2005/12/29 10:29:23;  author: nickc;  state: Exp;  lines: +2 -3
    11 (_bfd_link_section_stabs): Use bfd_hash_table_init rather than
    12 bfd_hash_table_init_n(...,251) so that the size of the hash table can be
    13 controlled by the user.
    14 
    15 --- binutils/bfd/stabs.c.old	4 May 2005 15:53:39 -0000	1.24
    16 +++ binutils/bfd/stabs.c	29 Dec 2005 10:29:23 -0000	1.25
    17 @@ -194,9 +194,8 @@
    18  	goto error_return;
    19        /* Make sure the first byte is zero.  */
    20        (void) _bfd_stringtab_add (sinfo->strings, "", TRUE, TRUE);
    21 -      if (! bfd_hash_table_init_n (&sinfo->includes,
    22 -				   stab_link_includes_newfunc,
    23 -				   251))
    24 +      if (! bfd_hash_table_init (&sinfo->includes,
    25 +				 stab_link_includes_newfunc))
    26  	goto error_return;
    27        sinfo->stabstr = bfd_make_section_anyway (abfd, ".stabstr");
    28        if (sinfo->stabstr == NULL)