OpenWRT firmware for routers
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Daniel Engberg 5a078180d0 mbedtls: Disable MBEDTLS_SHA256_SMALLER implementation
Disable MBEDTLS_SHA256_SMALLER implementation, not enabled by default in
upstream and reduces performance by quite a bit.

Source: include/mbedtls/config.h

Enable an implementation of SHA-256 that has lower ROM footprint but also
lower performance.

The default implementation is meant to be a reasonnable compromise between
performance and size. This version optimizes more aggressively for size at
the expense of performance. Eg on Cortex-M4 it reduces the size of
mbedtls_sha256_process() from ~2KB to ~0.5KB for a performance hit of
about 30%.

The size of mbedtls increased a little bit:
ipkg for mips_24kc before:
164.382 Bytes
ipkg for mips_24kc after:
166.240 Bytes

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
6 years ago
.github merge: github: use OpenWrt in issue/pr templates 6 years ago
config config: fix ARM64 dependency check 6 years ago
include download.mk: enable DownloadMethod/github_archive 6 years ago
package mbedtls: Disable MBEDTLS_SHA256_SMALLER implementation 6 years ago
scripts scripts/dl_github_archive.py: rename from download.py 6 years ago
target sunxi: Enable SD block devices 6 years ago
toolchain toolchain/nasm: fix missing AR/RANLIB variables 6 years ago
tools tools/ccache: update to 3.4.2 6 years ago
.gitattributes add .gitattributes to prevent the git autocrlf option from messing with CRLF/LF in files 12 years ago
.gitignore .gitignore: add .project & .cproject for eclipse users 6 years ago
BSDmakefile add missing copyright header 17 years ago
Config.in merge: base: update base-files and basic config 7 years ago
LICENSE finally move buildroot-ng to trunk 8 years ago
Makefile build: include package directory in sha256sums when running on buildbot 6 years ago
README merge: base: update base-files and basic config 7 years ago
feeds.conf.default feeds: switch git.lede-project.org URLs to git.openwrt.org 6 years ago
rules.mk build: include package directory in sha256sums when running on buildbot 6 years ago

README

This is the buildsystem for the OpenWrt Linux distribution.

Please use "make menuconfig" to choose your preferred
configuration for the toolchain and firmware.

You need to have installed gcc, binutils, bzip2, flex, python, perl, make,
find, grep, diff, unzip, gawk, getopt, subversion, 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.

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.


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