Segfault at src/fp.cpp:579 maskArray

[iljah]

This program (excluding includes):

int main(int argc, char* argv[]) {
    std::array<uint64_t, bls::local::keySize> key_data{
        0x1000000000000000,
        0x0000000000000000,
        0x0000000000000000,
        0x0000000000000000
    };
    bls::SecretKey secret_key;
    secret_key.set(key_data.data());
}

segfaults for some reason:

Program received signal SIGSEGV, Segmentation fault.
0x0000000000420300 in mcl::fp::maskArray<unsigned long> (bitSize=18446744073709551615, n=0, x=0x7fffffffd080)
    at src/fp.cpp:579
579                             maskArray(y, op.N, op.bitSize - 1);
(gdb) up
#1  mcl::fp::copyAndMask (y=y@entry=0x7fffffffd080, x=x@entry=0x7fffffffd040, xByteSize=0, xByteSize@entry=32, 
    op=..., maskMode=<optimized out>, maskMode@entry=mcl::fp::SmallMask) at src/fp.cpp:579
579                             maskArray(y, op.N, op.bitSize - 1);
(gdb) 
#2  0x000000000040401e in mcl::FpT<mcl::bn::local::FrTag, 256ul>::setArrayMask<char> (n=n@entry=32, 
    x=x@entry=0x7fffffffd040 "\320xi", this=0x7fffffffd080, this@entry=0x7fffffffd030)
    at ./../mcl/src/bn_c_impl.hpp:106
106             cast(x)->setArrayMask((const char *)buf, bufSize);
(gdb) 
#3  mclBnFr_setLittleEndian (x=x@entry=0x7fffffffd080, buf=buf@entry=0x7fffffffd060, bufSize=bufSize@entry=32)
    at ./../mcl/src/bn_c_impl.hpp:106
106             cast(x)->setArrayMask((const char *)buf, bufSize);
(gdb) 
#4  0x000000000040352b in bls::SecretKey::setLittleEndian (bufSize=32, buf=0x7fffffffd060, this=0x7fffffffd080)
    at submodules/bls/include/bls/bls.hpp:202
202                     mclBnFr_setLittleEndian(&self_.v, buf, bufSize);
(gdb) 
#5  bls::SecretKey::set (p=0x7fffffffd060, this=0x7fffffffd080) at submodules/bls/include/bls/bls.hpp:197
197                     setLittleEndian(p, local::keySize * sizeof(uint64_t));

at secret_key.set(key_data.data());. What is weird is that identical code works in another larger program. Compiling with GCC 8.1.1 and -O3.

[iljah]

Whoops never mind, forgot to bls::init();.