Xiang.Lin

@cloudwebrtc i try to impl flutter-webrtc on linux desktop based on common/cpp code, mostly seems is working, [iDings/flutter-webrtc/try_linux](https://github.com/iDings/flutter-webrtc/commits/try_linux), but have a issue: if desktop callout, the remote video can't be...

> Hey @iDings, Is the loopback sample working? It looks like the RTCVideoRenderer is not initialized. loopback sample works fine https://user-images.githubusercontent.com/2938288/167607399-7ab09216-2a73-4afc-9d1d-54fe705a5070.mp4

https://github.com/flutter-webrtc/flutter-webrtc-demo/issues/118#issuecomment-801804745 this patch fix my problem, but main reason is ```ValueListenableBuilder``` does not rebuild child when ```RTCVideoValue``` changes, so for this view need make sure ```videoRenderer.textureId != null && videoRenderer.srcObject...

run parse-sass.sh first before install.sh

release/1.5.0 is no longer avaiable on fast-rtps, but tag still have v1.5.0,can use the patch show below to fix this problem ```shell diff --git a/tools/install/install_prereqs.sh b/tools/install/install_prereqs.sh old mode 100644 new...

之前picolibc的tls的讨论 https://github.com/RT-Thread/rt-thread/pull/8220#issuecomment-1792359280 初步用qemue-vexpress-a9测试`__thread` tls是可以工作的. 主要参考riot的修改:https://github.com/RIOT-OS/RIOT/commit/0ceb0804b02185aa2268d7548c34b3bf3f73a376 对于picolibc上的关于链接脚本的对齐的讨论，暂时没有理解的非常明白 https://github.com/picolibc/picolibc/pull/411.

对thumb模式跟arm模式混合使用的话，现在的打桩需要做下处理, 我现在正在使用rt-thread，它的qemu-vexpress-a9是使用的thumb模式的libc，然后用cpp-stub打桩的话之后会挂掉。 ```shell arm-none-eabi-gcc -march=armv7-a -marm -msoft-float --print-file-name=libc.a gcc-arm-none-eabi-9-2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/lib/thumb/v7/nofp/libc.a ``` 初步想法是， 对于thumb模式的话，获取的符号地址的最地位是1，增对这个需要做下特殊处理，但是我现在还没有成功构建thumb到arm的跳转指令