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patches/binutils/2.19.1/130-check_ldrunpath_length.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 Original patch from: ../crosstool-NG/ct-ng.trunk/patches/binutils/2.19/130-check_ldrunpath_length.patch

     2 

     3 -= BEGIN original header =-

     4 Original patch from Gentoo:

     5 gentoo/src/patchsets/binutils/2.19/42_all_012_check_ldrunpath_length.patch

     6 

     7 Originaly from Debian:

     8 ## 012_check_ldrunpath_length.dpatch by Chris Chimelis <chris@debian.org>

     9 ##

    10 ## All lines beginning with `## DP:' are a description of the patch.

    11 ## DP: Only generate an RPATH entry if LD_RUN_PATH is not empty, for

    12 ## DP: cases where -rpath isn't specified. (#151024)

    13 

    14 -= END original header =-

    15 

    16 diff -durN binutils-2.19.1.orig/ld/emultempl/elf32.em binutils-2.19.1/ld/emultempl/elf32.em

    17 --- binutils-2.19.1.orig/ld/emultempl/elf32.em	2008-09-07 06:02:31.000000000 +0200

    18 +++ binutils-2.19.1/ld/emultempl/elf32.em	2009-03-08 11:57:01.000000000 +0100

    19 @@ -1219,6 +1219,8 @@

    20  	      && command_line.rpath == NULL)

    21  	    {

    22  	      lib_path = (const char *) getenv ("LD_RUN_PATH");

    23 +	      if ((lib_path) && (strlen (lib_path) == 0))

    24 +		  lib_path = NULL;

    25  	      if (gld${EMULATION_NAME}_search_needed (lib_path, &n,

    26  						      force))

    27  		break;

    28 @@ -1404,6 +1406,8 @@

    29    rpath = command_line.rpath;

    30    if (rpath == NULL)

    31      rpath = (const char *) getenv ("LD_RUN_PATH");

    32 +  if ((rpath) && (strlen (rpath) == 0))

    33 +      rpath = NULL;

    34    if (! (bfd_elf_size_dynamic_sections

    35  	 (link_info.output_bfd, command_line.soname, rpath,

    36  	  command_line.filter_shlib,
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