Ivan Grokhotkov d891704c1e Reduce stack usage by Print::printf ...

Print::printf would allocate 1460 bytes on the stack, which in some cases would overflow the stack. Additionally it didn't handle (rare) cases when vsnprintf needed a buffer longer than 1460 bytes. This change makes default stack-allocated buffer 64 bytes long, and checks the result returned by vsnprintf. If a buffer longer than 64 bytes is needed, it is allocated on the heap.

2016-02-26 18:41:27 +03:00

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esp8266

Reduce stack usage by Print::printf

2016-02-26 18:41:27 +03:00