Hi Bryan,

On Feb 7, 2023, at 9:13 PM, Bryan Phillippe bp@darkforest.org wrote:

...

-rwxr-xr-x 1 config root 2765178 Dec 9 2018 /lib/libuClibc-1.0.14.so /root # strings /lib/libuClibc-1.0.14.so |grep -i linaro|head -n 1 GCC: (OpenWrt/Linaro GCC 4.8-2014.04 r35193) 4.8.3

This indicates that it was built with an OpenWRT toolchain, and OpenWRT project maintainers used Linaro GCC 4.8 source release, instead of FSF GCC 4.8 source release. In the days of GCC 4.8 it was very common to use Linaro GCC source release instead of FSF ones for building compilers for 32-bit and 64-bit ARM.

Try searching in OpenWRT archives for a copy of GCC 4.8-based toolchain.

/root # strings /lib/libuClibc-1.0.14.so |grep -i gcc-4.8|head -n 1 /home/test/work/sudhan-qsdk/qsdk/build_dir/toolchain-arm_cortex-a7_gcc-4.8-linaro_uClibc-1.0.14_eabi/uClibc-ng-1.0.14 /root #

I only need to rebuild a single binary on this platform, and I don't have the source or the toolchain for the existing binaries. If I have to recreate a toolchain based on the versions only, it should be possible, but will be a good deal of work and effort. If you know where I can find this toolchain - or have any advice on how I can build my own compatible version - I would be very grateful.

If you want to rebuild a single executable, then it may be easier to use a modern toolchain for arm-linux-gnueabihf [1] and build the static binary of your package (add "-static" to compiler flags). This was the binary will include all necessary bits of system libraries. This is a good approach if your package does not have dependencies outside of C library; otherwise you would need to find static versions of all other libraries.

-- Maxim Kuvyrkov https://www.linaro.org

Thank you so much!

-- -bp

...

On Feb 7, 2023, at 04:24, Maxim Kuvyrkov maxim.kuvyrkov@linaro.org wrote:

[CC: linaro-toolchain@]

Hi Bryan,

I don't think that Linaro has ever released a toolchain with uClibc, but I may be wrong. Could you provide additional information about the target, rootfs and your setup?

-- Maxim Kuvyrkov https://www.linaro.org

...

On Feb 7, 2023, at 10:31 AM, Bryan Phillippe bp@darkforest.org wrote:

Hello! I know this is a long shot, but I have a few devices with code that was built using this toolchain: toolchain-arm_cortex-a7_gcc-4.8-linaro_uClibc-1.0.14_eabi

I'm trying to find a copy of that so I can rebuild 1 binary/package on the system without blowing everything up. Do you have any idea where I can find this toolchain? Thank you so much in advance!

-- -bp