patches/glibc/ports-2.13/190-localedef-mmap.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Tue Oct 16 20:57:44 2012 +0200 (2012-10-16)
changeset 3079 37831a33e07e
permissions -rw-r--r--
kernel/linux: fix using custom location

Currently, extract and patch are skipped as thus:
- using a custom directory of pre-installed headers
- a correctly named directory already exists

Otherwise, extract and patch are done.

The current second condition is wrong, because it allows the following
sequence to happen:
- a non-custom kernel is used
- a previous build only partially extracted the non-custom sources
- that p[revious build broke during extraction (eg. incomplete tarball...)
- a subsequent build will find a properly named directory, and will
thus skip extract and patch, which is wrong

Fix that by following the conditions in this table:

Type | Extract | Patch
----------------------+---------+-------
Pre-installed headers | N | N
custom directory | N | N
custom tarball | Y | N
mainstream tarball | Y | Y

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: David Holsgrove <david.holsgrove@xilinx.com>
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sniped from Debian
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http://bugs.gentoo.org/289615
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2009-10-27  Aurelien Jarno  <aurelien@aurel32.net>
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	* locale/programs/locarchive.c: use MMAP_SHARED to reserve memory
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	used later with MMAP_FIXED | MMAP_SHARED to cope with different
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	alignment restrictions.
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diff -durN glibc-2.13.orig/locale/programs/locarchive.c glibc-2.13/locale/programs/locarchive.c
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--- glibc-2.13.orig/locale/programs/locarchive.c	2009-04-27 16:07:47.000000000 +0200
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+++ glibc-2.13/locale/programs/locarchive.c	2009-11-13 00:50:01.000000000 +0100
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@@ -134,7 +134,7 @@
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   size_t reserved = RESERVE_MMAP_SIZE;
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   int xflags = 0;
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   if (total < reserved
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-      && ((p = mmap64 (NULL, reserved, PROT_NONE, MAP_PRIVATE | MAP_ANON,
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+      && ((p = mmap64 (NULL, reserved, PROT_NONE, MAP_SHARED | MAP_ANON,
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 		       -1, 0)) != MAP_FAILED))
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     xflags = MAP_FIXED;
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   else
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@@ -396,7 +396,7 @@
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   size_t reserved = RESERVE_MMAP_SIZE;
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   int xflags = 0;
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   if (total < reserved
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-      && ((p = mmap64 (NULL, reserved, PROT_NONE, MAP_PRIVATE | MAP_ANON,
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+      && ((p = mmap64 (NULL, reserved, PROT_NONE, MAP_SHARED | MAP_ANON,
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 		       -1, 0)) != MAP_FAILED))
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     xflags = MAP_FIXED;
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   else
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@@ -614,7 +614,7 @@
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   int xflags = 0;
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   void *p;
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   if (st.st_size < reserved
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-      && ((p = mmap64 (NULL, reserved, PROT_NONE, MAP_PRIVATE | MAP_ANON,
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+      && ((p = mmap64 (NULL, reserved, PROT_NONE, MAP_SHARED | MAP_ANON,
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 		       -1, 0)) != MAP_FAILED))
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     xflags = MAP_FIXED;
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   else