esp8266/tools/sdk/lib

Adding a new SDK library

• Create a directory for the new SDK.
• Copy .a files from SDK lib directory to the new directory
• Add the new SDK directory to those supported in eval_fix_sdks.sh and fix_sdk_libs.sh.
• To support WPA2 Enterprise connections, some patches are reguired review wpa2_eap_patch.cpp and eval_fix_sdks.sh for details.
• Use ./eval_fix_sdks.sh --analyze to aid in finding relevant differences.
  • Also, you can compare two SDKs with something like ./eval_fix_sdks.sh --analyze "NONOSDK305\nNONOSDK306"
• Apply updates to fix_sdk_libs.sh and wpa2_eap_patch.cpp. You can run ./eval_fix_sdks.sh --patch to do a batch run of fix_sdk_libs.sh against each SDK.
• If you used this section, you can skip Updating SDK libraries.

Updating SDK libraries

• Copy .a files from SDK lib directory to this directory
• Run fix_sdk_libs.sh

Updating libstdc++

After building gcc using crosstool-NG, get compiled libstdc++ and remove some objects:

xtensa-lx106-elf-ar d libstdc++.a pure.o
xtensa-lx106-elf-ar d libstdc++.a vterminate.o
xtensa-lx106-elf-ar d libstdc++.a guard.o
xtensa-lx106-elf-ar d libstdc++.a functexcept.o
xtensa-lx106-elf-ar d libstdc++.a del_op.o
xtensa-lx106-elf-ar d libstdc++.a del_opv.o
xtensa-lx106-elf-ar d libstdc++.a new_op.o
xtensa-lx106-elf-ar d libstdc++.a new_opv.o