[llvm-bugs] [Bug 45584] New: Support --allow-multiple-definitions in ld.lld.exe

via llvm-bugs llvm-bugs at lists.llvm.org
Fri Apr 17 07:32:44 PDT 2020


            Bug ID: 45584
           Summary: Support --allow-multiple-definitions in ld.lld.exe
           Product: lld
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: COFF
          Assignee: unassignedbugs at nondot.org
          Reporter: Mikhail.Kviatkovskii at pm.me
                CC: llvm-bugs at lists.llvm.org

MinGW version of LLD, ld.lld.exe, does not support
"--allow-multiple-definitions" options:

lld: error: unknown argument: --allow-multiple-definitions
collect2.exe: error: ld returned 1 exit status

As far as I understand, ld.lld.exe is a wrapper over a lld-link.exe, which has
the option "/force:multiple" ("Allow multiply defined symbols when creating
executables"), which sounds similar to me. 

So maybe it is possbile to implement "--allow-multiple-definitions" options
with passing "/force:multiple" to lld-link.exe?

I also wonder if there is a workaround, that allows to pass arguments from
ld.lld.exe wrapper to lld-link.exe directly, like "-Wl" allows to pass
arguments from compiler to linker?

Thank you in advance!

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