patches/glibc/ports-2.10.1/520-alpha-add-futex-defines.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 2009-05-19  Aurelien Jarno  <aurelien@aurel32.net>
     2 
     3 	* sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h: Define
     4 	FUTEX_WAIT_BITSET, FUTEX_WAKE_BITSET, FUTEX_CLOCK_REALTIME and
     5 	FUTEX_BITSET_MATCH_ANY.
     6 
     7  ports/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h |    5 +++++
     8  1 file changed, 5 insertions(+)
     9 
    10 diff -durN glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h glibc-2.10.1/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h
    11 --- glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h	2009-05-16 10:36:20.000000000 +0200
    12 +++ glibc-2.10.1/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h	2009-11-13 00:51:11.000000000 +0100
    13 @@ -37,7 +37,12 @@
    14  #define FUTEX_LOCK_PI		6
    15  #define FUTEX_UNLOCK_PI		7
    16  #define FUTEX_TRYLOCK_PI	8
    17 +#define FUTEX_WAIT_BITSET	9
    18 +#define FUTEX_WAKE_BITSET	10
    19  #define FUTEX_PRIVATE_FLAG	128
    20 +#define FUTEX_CLOCK_REALTIME	256
    21 +
    22 +#define FUTEX_BITSET_MATCH_ANY	0xffffffff
    23  
    24  /* Values for 'private' parameter of locking macros.  Yes, the
    25     definition seems to be backwards.  But it is not.  The bit will be
    26 diff -durN glibc-2.10.1.orig/ports/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h glibc-2.10.1/ports/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h