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c8947953ac
SHA512 module stored padding in PROGMEM, but would then pass the pointer to padding into Update function which would do a memcpy. Use the same approach as with SHA256, that is to copy padding to the stack first, and then pass it to Update.
Updating SDK libraries
After updating SDK libraries to a new version, do the following changes.
Remove mem_manager.o from libmain.a to use custom heap implementation, and time.o to fix redefinition of time-related functions:
xtensa-lx106-elf-ar -d libmain.a mem_manager.o
xtensa-lx106-elf-ar -d libmain.a time.o
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