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Felix Fietkau b050f87d13 gcc: prevent the use of LDRD/STRD on ARMv5TE 
These instructions are for 64-bit load/store. On ARMv5TE, the CPU
requires addresses to be aligned to 64-bit. When misaligned, behavior is
undefined (effectively either loads the same word twice on LDRD, or
corrupts surrounding memory on STRD).

On ARMv6 and newer, unaligned access is safe.

Removing these instructions for ARMv5TE is necessary, because GCC
ignores alignment information in pointers and does unsafe optimizations
that have shown up as bugs in various places.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 39638
2014-02-19 19:20:10 +00:00
config config: lxc: enable KERNEL_POSIX_MQUEUE 2014-01-24 13:49:39 +00:00
docs docs: update remaining references to functions.sh 2012-12-20 15:29:33 +00:00
include upgrade 3.13 targets to 3.13.2, refresh patches 2014-02-13 13:27:14 +00:00
package mac80211: disable libertas-sd on uml target 2014-02-18 22:15:52 +00:00
scripts scripts/kconfig.pl: Indicate which file we couldn't open 2014-01-19 17:27:04 +00:00
target ar71xx: add profile and build image for TP-Link TL-WDR4900 v2.0 board 2014-02-19 12:15:35 +00:00
toolchain gcc: prevent the use of LDRD/STRD on ARMv5TE 2014-02-19 19:20:10 +00:00
tools cmake: upgrade to 2.8.12.2 2014-02-16 21:51:10 +00:00
.gitattributes add .gitattributes to prevent the git autocrlf option from messing with CRLF/LF in files 2012-05-08 13:30:49 +00:00
.gitignore add git-src to .gitignore 2014-01-12 12:06:39 +00:00
BSDmakefile add missing copyright header 2007-02-26 01:05:09 +00:00
Config.in move menuconfig options into separate files 2013-11-22 14:30:40 +00:00
feeds.conf.default feeds: disable the x-wrt feed, it is unmaintained 2014-02-03 14:29:04 +00:00
LICENSE finally move buildroot-ng to trunk 2016-03-20 17:29:15 +01:00
Makefile build: it is no longer necessary to call make target/linux/clean as part of make clean 2012-12-02 15:26:28 +00:00
README build: BSD compile fixes 2013-03-07 17:32:29 +00:00
rules.mk FPU type should not interfere with the ABI selection. Also make sure we either do real soft-float or hard-float on ARM, with the right options. 2013-11-29 10:59:51 +00:00

README 

This is the buildsystem for the OpenWrt Linux distribution.

Please use "make menuconfig" to configure your appreciated
configuration for the toolchain and firmware.

You need to have installed gcc, binutils, bzip2, flex, python, perl
make, find, grep, diff, unzip, gawk, getopt, libz-dev and libc headers.

Run "./scripts/feeds update -a" to get all the latest package definitions
defined in feeds.conf / feeds.conf.default respectively
and "./scripts/feeds install -a" to install symlinks of all of them into
package/feeds/.

Use "make menuconfig" to configure your image.

Simply running "make" will build your firmware.
It will download all sources, build the cross-compile toolchain, 
the kernel and all choosen applications.

You can use "scripts/flashing/flash.sh" for remotely updating your embedded
system via tftp.

The OpenWrt system is documented in docs/. You will need a LaTeX distribution
and the tex4ht package to build the documentation. Type "make -C docs/" to build it.

To build your own firmware you need to have access to a Linux, BSD or MacOSX system
(case-sensitive filesystem required). Cygwin will not be supported because of
the lack of case sensitiveness in the file system.


Sunshine!
	Your OpenWrt Project
	http://openwrt.org