Comment #2 on issue 637 by [email protected]: Patch for
/trunk/src/google/protobuf/stubs/once.cc
http://code.google.com/p/protobuf/issues/detail?id=637
I have investigated a bit deeper.
It's failing on MIPS64 n64 because protobuf doesn't detect MIPS64
architectures, so it thinks that is on a 32-bit architecture. The problem
is that intptr_t on MIPS64 n64 is a 64-bit pointer. So, in the file
src/google/protobuf/stubs/atomicops.h we have this line:
typedef intptr_t AtomicWord;
So, in MIPS64 n64 the AtomicWord type is 64-bit because intptr_t is 64-bit
too. But, due that the MIPS64 architectures are not detected by protobuf,
the "64-bit atomic operations" are not defined, so when the code tries to
call, for instance, Acquire_Load(), it's actually calling the one for
32-bit instead of the one for 64-bit.
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