[Bug 254001] llvm fails to link with -fprofile-instr-generate -fcoverage-mapping

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Thu Mar 4 03:43:27 UTC 2021


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254001

            Bug ID: 254001
           Summary: llvm fails to link with -fprofile-instr-generate
                    -fcoverage-mapping
           Product: Base System
           Version: 13.0-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: bugs at FreeBSD.org
          Reporter: ota at j.email.ne.jp

Created attachment 222959
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=222959&action=edit
source code and its error output

LLVM on 13-BETA fails to link with -fprofile-instr-generate -fcoverage-mapping
option:

% cc -fprofile-instr-generate -fcoverage-mapping coverage.c
ld: error: undefined hidden symbol: __llvm_profile_counter_bias
>>> referenced by InstrProfilingFile.c:966 (/usr/src/contrib/llvm-project/compil
er-rt/lib/profile/InstrProfilingFile.c:966)
>>>               InstrProfilingFile.o:(__llvm_profile_initialize_file) in archi
ve /usr/lib/clang/11.0.1/lib/freebsd/libclang_rt.profile-i386.a
>>> referenced by InstrProfilingFile.c:966 (/usr/src/contrib/llvm-project/compil
er-rt/lib/profile/InstrProfilingFile.c:966)

These options had been sufficient on 12.x-RELEASES.

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