Changes between Version 2 and Version 3 of OpenWrt/SDK

Timestamp:

03/30/2018 07:35:25 PM (7 years ago)

Author:

Cale Collins

Comment:

added imx6 example

OpenWrt/SDK

@@ -14 +14 @@
 If you are using pre-built firmware from http://dev.gateworks.com/openwrt then you can use the pre-built toolchain there to build your own code.
 
-For example, if you wanted to build a hello-world for laguna (cns3xxx) platform:
-{{{
-$ wget http://dev.gateworks.com/openwrt/latest/cns3xxx/OpenWrt-Toolchain-cns3xxx-for-arm_v6k-gcc-4.6-linaro_uClibc-0.9.33.2_eabi.tar.bz2
+The steps involved:
+1. Download prebuilt toolchain/SDK, the toolchain contains the compiler and standard libraries only.  
+1. Uncompress it. 
+1. Add it to your path (optional)
+1. Use the toolchain cross compiler to cross compile your code. 
+
+Examples:
+* Example, if you wanted to build a hello-world for OpenWrt 14.08 for the laguna (cns3xxx) platform:
+{{{#!bash
+$ wget http://dev.gateworks.com/openwrt/14.08/cns3xxx/OpenWrt-Toolchain-cns3xxx-for-arm_v6k-gcc-4.6-linaro_uClibc-0.9.33.2_eabi.tar.bz2
 $ tar xvf OpenWrt-Toolchain-cns3xxx-for-arm_v6k-gcc-4.6-linaro_uClibc-0.9.33.2_eabi.tar.bz2
 $ PATH=$PWD/OpenWrt-Toolchain-cns3xxx-for-arm_v6k-gcc-linaro_uClibc-0.9.32_eabi/toolchain-arm_v6k_gcc-linaro_uClibc-0.9.32_eabi/bin:$PATH
@@ -32 +39 @@
 hello-world: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), not stripped
 }}} 
-
+* Example OpenWrt 16.02 for the Ventana (imx6) platform:
+{{{#!bash
+# download toolchain
+wget http://dev.gateworks.com/openwrt/16.02/imx6/Gateworks-Toolchain-imx6_gcc-5.2.0_musl-1.1.12_eabi.Linux-x86_64.tar.bz2 
+# extract toolchain
+tar xvf Gateworks-Toolchain-imx6_gcc-5.2.0_musl-1.1.12_eabi.Linux-x86_64.tar.bz2 
+# add toolchain to path
+PATH=$PWD/Gateworks-Toolchain-imx6_gcc-5.2.0_musl-1.1.12_eabi.Linux-x86_64/toolchain-arm_cortex-a9+neon_gcc-5.2.0_musl-1.1.12_eabi/bin:$PATH 
+# create a simple program
+cat << EOF > hello-world.c
+#include <stdio.h>
+
+int main (int argc, char** argv)
+{
+printf("Hello World\n");
+return 0;
+}
+EOF
+# compile your program
+arm-openwrt-linux-gcc hello-world.c -o hello-world
+}}}
+ 
 Note:  The prebuilt toolchain may have some issue if the script arm-openwrt-linux-uclibcgnueabi-wrapper.sh is used (with regard to paths having whitespace).