一种简单的解决办法
Okay, the solution was to copy the libgcc.a file from:
esp-open-sdk/ESP8266_NONOS/lib/
to
esp-open-sdk/xtensa-lx106-elf/lib/gcc/xtensa-lx106-elf/4.8.5
Now everything is working fine! I can‘t believe it... 
8266编译错误 xtensa-lx106-elf/bin/ld: segmentled section `.text' will not fit in region `iram1_0_seg'
原文：https://www.cnblogs.com/mingyunrangwozoudaoxianzai/p/10118294.html