uclibc: Fix bug exposed by udev 168+ for mips architecture

newer udev uses sgnalfd + epoll and this exposed a bug
in uclibc for mips where SFD_NONBLOCK should be defined
with 0200 for mips but was using 04000. This would cause
random segfaults in udev during boot process

Tested on qemumips/angstrom console-image since angstrom
uses udev 171. It worked well when we did not use meta-oe
layer because udev in oe-core will then be used which is
at version 164.

(From OE-Core rev: a318b3c319ab34f661b3f41855374adba5b10394)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/uclibc/uclibc-git/0001-mips-signalfd.h-SFD_NONBLOCK-for-mips-is-0200-unlike.patch

@@ -0,0 +1,33 @@
+From ecc7d34cbbaf83aae87b091555650ed33e27ed2e Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 30 Jun 2011 00:32:11 -0700
+Subject: [PATCH] mips/signalfd.h: SFD_NONBLOCK for mips is 0200 unlike 04000 commonly
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ include/sys/signalfd.h |    9 +++++++++
+ 1 files changed, 9 insertions(+), 0 deletions(-)
+
+diff --git a/include/sys/signalfd.h b/include/sys/signalfd.h
+index 8cee17c..f1cb63a 100644
+--- a/include/sys/signalfd.h
++++ b/include/sys/signalfd.h
+@@ -64,6 +64,15 @@ enum
+ # define SFD_NONBLOCK SFD_NONBLOCK
+   };
+ 
++#elif defined __mips__
++enum
++  {
++    SFD_CLOEXEC = 02000000,
++# define SFD_CLOEXEC SFD_CLOEXEC
++    SFD_NONBLOCK = 0200
++# define SFD_NONBLOCK SFD_NONBLOCK
++  };
++
+ #else
+ enum
+   {
+-- 
+1.7.0.4
+

meta/recipes-core/uclibc/uclibc_git.bb

@@ -2,7 +2,7 @@ SRCREV="71d63ed75648da9b0b71afabb9c60aaad792c55c"
 
 require uclibc.inc
 PV = "0.9.31+0.9.32rc3"
-PR = "${INC_PR}.4"
+PR = "${INC_PR}.5"
 PROVIDES += "virtual/${TARGET_PREFIX}libc-for-gcc"
 
 FILESPATH = "${@base_set_filespath([ '${FILE_DIRNAME}/uclibc-git' ], d)}"
@@ -30,5 +30,6 @@ SRC_URI = "git://uclibc.org/uClibc.git;branch=master;protocol=git \
 	file://orign_path.patch \
 	file://rtld_no.patch \
 	file://0001-Config.in.arch-Free-UCLIBC_HAS_FPU-setting-from-depe.patch \
+	file://0001-mips-signalfd.h-SFD_NONBLOCK-for-mips-is-0200-unlike.patch \
 	"
 S = "${WORKDIR}/git"