[llvm-bugs] [Bug 40250] New: AArch64 ifunc broken: can't create dynamic relocation R_AARCH64_ADR_GOT_PAGE

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=40250

            Bug ID: 40250
           Summary: AArch64 ifunc broken: can't create dynamic relocation
                    R_AARCH64_ADR_GOT_PAGE
           Product: lld
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: ELF
          Assignee: unassignedbugs at nondot.org
          Reporter: eugeni.stepanov at gmail.com
                CC: llvm-bugs at lists.llvm.org, peter.smith at linaro.org

# cat 1.cc
static void fff_impl() {}

extern "C"
void *fff_resolver() {
  return (void *)&fff_impl;
}

__attribute__((ifunc("fff_resolver")))
void fff();

int use() {
  long z = reinterpret_cast<long>(&fff);
  if (z & 0xa)
    return true;
  else
    return false;
}

# bin/clang++  ../llvm-project/1.cc -target aarch64-linux-android -fPIC 
-shared -fuse-ld=lld -B ~/build/android-ndk-r18b/standalone-arm64-api24/
--sysroot ~/build/android-ndk-r18b/standalone-arm64-api24/sysroot/
-stdlib=libstdc++

ld.lld: error: can't create dynamic relocation R_AARCH64_ADR_GOT_PAGE against
symbol: fff() in readonly segment; recompile object files with -fPIC or pass
'-Wl,-z,notext' to allow text relocations in the output
>>> defined in /tmp/1-c41c9b.o
>>> referenced by 1.cc
>>>               /tmp/1-c41c9b.o:(use())

ld.lld: error: can't create dynamic relocation R_AARCH64_LD64_GOT_LO12_NC
against symbol: fff() in readonly segment; recompile object files with -fPIC or
pass '-Wl,-z,notext' to allow text relocations in the output
>>> defined in /tmp/1-c41c9b.o
>>> referenced by 1.cc
>>>               /tmp/1-c41c9b.o:(use())
clang-8: error: linker command failed with exit code 1 (use -v to see
invocation)

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