[llvm-dev] Invoking lld for PE/COFF (Windows) linking

[Edward Diener via llvm-dev]

On 3/30/2017 9:03 PM, Reid Kleckner via llvm-dev wrote:
> On Thu, Mar 30, 2017 at 5:57 PM, Edward Diener via llvm-dev
> <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote:
>
>     Actually just doing:
>
>     clang++ -c t.cpp -o t.o --target=x86_64-windows-msvc -fmsc-version=1900
>     clang++ t.o -o t.exe --target=x86_64-windows-msvc -fuse-ld=lld
>
>     is not working for me. The first invocation works but the second
>     just hangs and never completes. Should it work ? If not, how can I
>     invoke the second to make it work properly ?
>
>
> Is it actually running lld-link.exe?  Does lld-link.exe exist next to
> clang++.exe? If you add -###, what linker command line is clang trying
> to run?

  "C:/Programming/VersionControl/bninja_installed_clang/bin/clang++" 
-o 
"C:\Programming\VersionControl\modular-boost\build\boost\bin.v2\libs\preprocessor\test\config_info.test\clang-linux-5.0cl\debug\address-model-32\config_info.exe" 
-Wl,--start-group 
"C:\Programming\VersionControl\modular-boost\build\boost\bin.v2\libs\preprocessor\test\config_info.test\clang-linux-5.0cl\debug\address-model-32\config_info.obj" 
  -Wl,-Bstatic  -Wl,-Bdynamic  -Wl,--end-group -g 
--target=i686-pc-windows-msvc -### -fuse-ld=lld

  clang version 5.0.0 (trunk 298890)
  Target: i686-pc-windows-msvc
  Thread model: posix
  InstalledDir: C:\Programming\VersionControl\bninja_installed_clang\bin
 
"C:\\Programming\\VersionControl\\bninja_installed_clang\\bin\\lld-link.exe" 
"-out:C:\\Programming\\VersionControl\\modular-boost\\build\\boost\\bin.v2\\libs\\preprocessor\\test\\config_info.test\\clang-linux-5.0cl\\debug\\address-model-32\\config_info.exe" 
"-defaultlib:libcmt" "-libpath:C:\\Program Files (x86)\\Microsoft Visual 
Studio 14.0\\VC\\lib" "-libpath:C:\\Program Files (x86)\\Windows 
Kits\\10\\Lib\\10.0.14393.0\\ucrt\\x86" "-libpath:C:\\Program Files 
(x86)\\Windows Kits\\10\\Lib\\10.0.14393.0\\um\\x86" "-nologo" "-debug" 
"--start-group" 
"C:\\Programming\\VersionControl\\modular-boost\\build\\boost\\bin.v2\\libs\\preprocessor\\test\\config_info.test\\clang-linux-5.0cl\\debug\\address-model-32\\config_info.obj" 
"-Bstatic" "-Bdynamic" "--end-group"