Segfault in posix-mock-test (testing::internal::UntypedFunctionMockerBase::SetOwnerAndName)

[vedranmiletic]

When building with Clang 9 using libc++ (-stdlib=libc++) on 64-bit Linux, I get:

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
0x00005555555fd7c8 in testing::internal::UntypedFunctionMockerBase::SetOwnerAndName (this=0x0, mock_obj=0x0, name=0x55555563101d "newlocale") at ../test/gmock-gtest-all.cc:10538
10538     mock_obj_ = mock_obj;
(gdb) backtrace 
#0  0x00005555555fd7c8 in testing::internal::UntypedFunctionMockerBase::SetOwnerAndName (this=0x0, mock_obj=0x0, name=0x55555563101d "newlocale") at ../test/gmock-gtest-all.cc:10538
#1  0x000055555556e2c7 in LocaleMock::newlocale (this=0x0, gmock_a1=8127, gmock_a2=0x7ffff7f5b336 "C", gmock_a3=0x0) at ../test/posix-mock-test.cc:456
#2  0x000055555556aa8a in newlocale (category_mask=8127, locale=0x7ffff7f5b336 "C", base=0x0) at ../test/posix-mock-test.cc:497
#3  0x00007ffff7f23fc7 in ?? () from /usr/lib/libc++.so.1
#4  0x00007ffff7f2932e in std::__1::locale::__global() () from /usr/lib/libc++.so.1
#5  0x00007ffff7f29389 in std::__1::locale::locale() () from /usr/lib/libc++.so.1
#6  0x00007ffff7efaa9c in std::__1::basic_streambuf<char, std::__1::char_traits<char> >::basic_streambuf() () from /usr/lib/libc++.so.1
#7  0x00007ffff7f06897 in std::__1::ios_base::Init::Init() () from /usr/lib/libc++.so.1
#8  0x00007ffff7eeb696 in ?? () from /usr/lib/libc++.so.1
#9  0x00007ffff7fe209a in call_init.part () from /lib64/ld-linux-x86-64.so.2
#10 0x00007ffff7fe21a1 in _dl_init () from /lib64/ld-linux-x86-64.so.2
#11 0x00007ffff7fd313a in _dl_start_user () from /lib64/ld-linux-x86-64.so.2
#12 0x0000000000000001 in ?? ()
#13 0x00007fffffffea7c in ?? ()
#14 0x0000000000000000 in ?? ()

This is not the same as #325, as far as I can see.

[vitaut]

What Linux distro and version?

[vedranmiletic]

What Linux distro and version?

Stable Manjaro.

[vedranmiletic]

Also reproducible with Clang 10 on Ubuntu 20.04 pre-release updated today.

[vitaut]

Fixed in e588b02. Thanks for reporting!

[vedranmiletic]

Verified working. Thanks!