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Stijn Tintel 0eb2fa39f3 rules.mk: use -fPIC instead of -fpic on arm64
Some packages fail to build on arm64 when PKG_ASLR_PIE_ALL=y, due to
machine-specific size restrictions on the global offset table.
While the manual instructs to recompile with -fPIC if it fails with
-fpic, by doing this per package, there is still a risk of random
breakage due to version bumps or other changes, so let's use -fPIC on
arm64 by default.

While comparing the sizes of 141 packages built with -fpic vs -fPIC,
most packages are either equal or smaller in size. Only 9 of the
compared packages turned out slightly larger.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2020-12-07 18:23:13 +02:00
.github build: Update README & github help 2018-07-08 09:41:53 +01:00
config toolchain: kernel-headers: kernel Git tree mirror hash 2020-11-27 14:46:13 +01:00
include build: reduce cleanup binary calls in rootfs.mk 2020-12-05 22:07:00 -10:00
package lzo: remove 2020-12-06 11:21:44 -10:00
scripts build: mkhash on FreeBSD 2020-11-27 18:01:22 -10:00
target ramips: remove redundant status for USB controllers 2020-12-07 14:22:00 +01:00
toolchain glibc: update to latest 2.32 commit (BZ# 26224) 2020-12-05 20:56:44 +01:00
tools firmware-utils: tplink-safeloader: refactor meta-partition padding 2020-12-07 01:57:19 +01:00
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LICENSE LICENSE: use updated GNU copy 2020-08-02 15:54:43 +02:00
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README.md README: mv logo.svg include/logo.{png,svg} 2020-12-01 10:18:07 -10:00
feeds.conf.default feeds: add freifunk feed 2020-06-24 14:58:17 +02:00
rules.mk rules.mk: use -fPIC instead of -fpic on arm64 2020-12-07 18:23:13 +02:00

README.md

OpenWrt logo

OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.

Sunshine!

Development

To build your own firmware you need a GNU/Linux, BSD or MacOSX system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.

Requirements

You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.

gcc binutils bzip2 flex python3 perl make find grep diff unzip gawk getopt
subversion libz-dev libc-dev

Quickstart

  1. Run ./scripts/feeds update -a to obtain all the latest package definitions defined in feeds.conf / feeds.conf.default

  2. Run ./scripts/feeds install -a to install symlinks for all obtained packages into package/feeds/

  3. Run make menuconfig to select your preferred configuration for the toolchain, target system & firmware packages.

  4. Run make to build your firmware. This will download all sources, build the cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen applications for your target system.

The main repository uses multiple sub-repositories to manage packages of different categories. All packages are installed via the OpenWrt package manager called opkg. If you're looking to develop the web interface or port packages to OpenWrt, please find the fitting repository below.

Support Information

For a list of supported devices see the OpenWrt Hardware Database

Documentation

Support Community

  • Forum: For usage, projects, discussions and hardware advise.
  • Support Chat: Channel #openwrt on freenode.net.

Developer Community

License

OpenWrt is licensed under GPL-2.0