Changes between Version 6 and Version 7 of OpenWrt/SDK

Timestamp:

08/27/2024 11:54:08 PM (3 months ago)

Author:

Ryan Erbstoesser

Comment:

add venice notes

OpenWrt/SDK

@@ -63 +63 @@
 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).
 
+=== Venice Notes
+
+Gateworks has not published a Toolchain / SDK and thus it should be built with the OpenWrt instructions on the [wiki:OpenWrt/building] page. 
+
+This results in a toolchain in ./staging_dir and for 24.01 imx8m the toolchain will be toolchain-aarch64_cortex-a53_gcc-12.3.0_musl
+
+Once the toolchain is there, use the following commands to compile a Hello World:
+{{{
+# configure toolchain
+export TOOLCHAIN=toolchain-aarch64_cortex-a53_gcc-12.3.0_musl
+export STAGING_DIR=$PWD/staging_dir
+export ARCH=arm64
+export CROSS_COMPILE=aarch64-openwrt-linux-
+export PATH=$PATH:$STAGING_DIR/$TOOLCHAIN/bin
+cat << EOF > helloworld.c
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char **argv)
+{
+        printf("hello world!\n");
+
+        return 0;
+}
+EOF
+${CROSS_COMPILE}gcc helloworld.c -o helloworld
+}}}
+
+This builds a dynamically linked helloworld which you can inspect as:
+{{{
+$ file helloworld
+helloworld: ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-musl-aarch64.so.1, with
+ debug_info, not stripped
+${CROSS_COMPILE}objdump -x helloworld | grep NEEDED
+  NEEDED               libgcc_s.so.1
+  NEEDED               libc.so
+
+}}}
+
+You can then copy this executable and run this on a board with OpenWrt 24.01 installed
+
 === Ventana Notes ===
 If desired, download the Ventana OpenWrt Toolchain/SDK and skip to step 4: