Looks to me like a lot of stuff needs implemented or stubbed as well as there is some 16bit assembly somewhere.
Randomly choosing a symbol, CpuInfoProvider, I see,
The volume label in drive K is Unixroot.
The Volume Serial Number is 2CFE:A5C0.
Directory of K:\work\qt5\qt5-os2\qtwebengine\src\3rdparty\chromium\extensions\br
owser\api\system_cpu
1-03-23 9:36p <DIR> 124 ---- .
1-03-23 9:36p <DIR> 124 ---- ..
1-03-23 9:36p 1,185 124 a--- BUILD.gn
1-03-23 9:36p 2,771 124 a--- cpu_info_provider.cc
1-03-23 9:36p 1,959 124 a--- cpu_info_provider.h
1-03-23 9:36p 2,225 124 a--- cpu_info_provider_linux.cc
1-03-23 9:36p 2,455 124 a--- cpu_info_provider_mac.cc
1-03-23 9:36p 2,723 124 a--- cpu_info_provider_win.cc
1-03-23 9:36p 19 124 a--- OWNERS
1-03-23 9:36p 1,034 124 a--- system_cpu_api.cc
1-03-23 9:36p 882 124 a--- system_cpu_api.h
1-03-23 9:36p 1,712 124 a--- system_cpu_apitest.cc
12 file(s) 16,965 bytes used
146,329,600 K bytes free
Hopefully a lot of this stuff can just be stubbed for now.