[llvm-bugs] [Bug 26703] New: llgo fails to link with clang 3.8/binutils 2.26

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=26703

            Bug ID: 26703
           Summary: llgo fails to link with clang 3.8/binutils 2.26
           Product: new-bugs
           Version: 3.8
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: bero at linaro.org
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Trying to build llgo in the llvm/clang 3.8 source tree on x86_64 linux results
in

/usr/bin/ld: error: .libs/go-assert.o: requires dynamic R_X86_64_PC32 reloc
against '__morestack' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld: error: .libs/go-assert-interface.o: requires dynamic R_X86_64_PC32
reloc against '__morestack' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld: error: .libs/go-byte-array-to-string.o: requires dynamic
R_X86_64_PC32 reloc against '__morestack' which may overflow at runtime;
recompile with -fPIC
/usr/bin/ld: error: .libs/go-caller.o: requires dynamic R_X86_64_PC32 reloc
against '__morestack' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld: error: .libs/go-callers.o: requires dynamic R_X86_64_PC32 reloc
against '__morestack' which may overflow at runtime; recompile with -fPIC
[...]
more of the same for other libgo source files follows
[...]

This is with ld = gold; if I switch to bfd ld, the error message becomes much
smaller, but the issue remains:
/usr/bin/ld.bfd: .libs/go-assert.o: relocation R_X86_64_PC32 against undefined
symbol `__morestack' can not be used when making a shared object; recompile
with -fPIC
/usr/bin/ld.bfd: final link failed: Bad value


libgo did get built with -fPIC.

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