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patches/binutils/2.18/120-i386-no-divide-comment.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 diff -durN binutils-2.18.orig/gas/config/tc-i386.c binutils-2.18/gas/config/tc-i386.c

     2 --- binutils-2.18.orig/gas/config/tc-i386.c	2007-08-24 16:01:22.000000000 +0200

     3 +++ binutils-2.18/gas/config/tc-i386.c	2008-09-22 08:11:42.000000000 +0200

     4 @@ -180,24 +180,10 @@

     5  #endif

     6  	;

     7  

     8 -#if (defined (TE_I386AIX)				\

     9 -     || ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF))	\

    10 -	 && !defined (TE_GNU)				\

    11 -	 && !defined (TE_LINUX)				\

    12 - 	 && !defined (TE_NETWARE)			\

    13 -	 && !defined (TE_FreeBSD)			\

    14 -	 && !defined (TE_NetBSD)))

    15  /* This array holds the chars that always start a comment.  If the

    16 -   pre-processor is disabled, these aren't very useful.  The option

    17 -   --divide will remove '/' from this list.  */

    18 -const char *i386_comment_chars = "#/";

    19 -#define SVR4_COMMENT_CHARS 1

    20 -#define PREFIX_SEPARATOR '\\'

    21 -

    22 -#else

    23 +   pre-processor is disabled, these aren't very useful.  */

    24  const char *i386_comment_chars = "#";

    25  #define PREFIX_SEPARATOR '/'

    26 -#endif

    27  

    28  /* This array holds the chars that only start a comment at the beginning of

    29     a line.  If the line seems to have the form '# 123 filename'

    30 @@ -6061,20 +6047,6 @@

    31        break;

    32  

    33      case OPTION_DIVIDE:

    34 -#ifdef SVR4_COMMENT_CHARS

    35 -      {

    36 -	char *n, *t;

    37 -	const char *s;

    38 -

    39 -	n = (char *) xmalloc (strlen (i386_comment_chars) + 1);

    40 -	t = n;

    41 -	for (s = i386_comment_chars; *s != '\0'; s++)

    42 -	  if (*s != '/')

    43 -	    *t++ = *s;

    44 -	*t = '\0';

    45 -	i386_comment_chars = n;

    46 -      }

    47 -#endif

    48        break;

    49  

    50      case OPTION_MARCH:

    51 @@ -6142,13 +6114,8 @@

    52    fprintf (stream, _("\

    53    --32/--64               generate 32bit/64bit code\n"));

    54  #endif

    55 -#ifdef SVR4_COMMENT_CHARS

    56 -  fprintf (stream, _("\

    57 -  --divide                do not treat `/' as a comment character\n"));

    58 -#else

    59    fprintf (stream, _("\

    60    --divide                ignored\n"));

    61 -#endif

    62    fprintf (stream, _("\

    63    -march=CPU/-mtune=CPU   generate code/optimize for CPU, where CPU is one of:\n\

    64                             i386, i486, pentium, pentiumpro, pentium4, nocona,\n\
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