patches/glibc/2.9/460-alpha-glibc-2.5-no-asm-elf-header.patch
author Anthony Foiani <anthony.foiani@gmail.com>
Thu May 19 23:06:16 2011 +0200 (2011-05-19)
changeset 2461 ec30b191f0e3
parent 1201 c9967a6e3b25
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>
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Original patch from: gentoo/src/patchsets/glibc/2.9/6016_all_alpha-glibc-2.5-no-asm-elf-header.patch
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-= BEGIN original header =-
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2007-03-13  Mike Frysinger  <vapier@gentoo.org>
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	* sysdeps/unix/sysv/linux/alpha/sys/procfs.h: Copy some defines
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	from alpha's asm/elf.h
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-= END original header =-
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diff -durN glibc-2_9.orig/sysdeps/unix/sysv/linux/alpha/sys/procfs.h glibc-2_9/sysdeps/unix/sysv/linux/alpha/sys/procfs.h
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--- glibc-2_9.orig/sysdeps/unix/sysv/linux/alpha/sys/procfs.h	2001-07-06 06:56:13.000000000 +0200
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+++ glibc-2_9/sysdeps/unix/sysv/linux/alpha/sys/procfs.h	2009-02-02 22:01:33.000000000 +0100
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@@ -29,10 +29,23 @@
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 #include <sys/types.h>
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 #include <sys/ucontext.h>
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 #include <sys/user.h>
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-#include <asm/elf.h>
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 __BEGIN_DECLS
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+/*
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+ * The OSF/1 version of <sys/procfs.h> makes gregset_t 46 entries long.
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+ * I have no idea why that is so.  For now, we just leave it at 33
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+ * (32 general regs + processor status word). 
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+ */
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+#define ELF_NGREG	33
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+#define ELF_NFPREG	32
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+
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+typedef unsigned long elf_greg_t;
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+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
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+
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+typedef double elf_fpreg_t;
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+typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
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+
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 struct elf_siginfo
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   {
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     int si_signo;			/* Signal number.  */