llvm dev - May 2020 - warning: failed to compute relocation: R_AARCH64_PREL32, Invalid data was encountered while parsing the file

Hi,
On AArch64, I see a lot of warnings like:

warning: failed to compute relocation: R_AARCH64_PREL32, Invalid data
was encountered while parsing the file

when opening object file with llvm-objdump. The llvm-objdump is from
trunk at this
moment. Is this easy to fix?

On 2020-05-30, Itaru Kitayama via llvm-dev wrote:
>Hi,
>On AArch64, I see a lot of warnings like:
>
>warning: failed to compute relocation: R_AARCH64_PREL32, Invalid data
>was encountered while parsing the file
>
>when opening object file with llvm-objdump. The llvm-objdump is from
>trunk at this
>moment. Is this easy to fix?
Hi Itaru,

Without the object, I am guessing you have an R_AARCH64_PREL32 in a
.debug_* section in an object file.

lib/Object/RelocationResolver.cpp does not resolve R_AARCH64_PREL32.

Can you upload the object file somewhere so that people can analyze?

Hi Fangrui,
I've uploaded the object file to the entry below:

https://bugs.llvm.org/show_bug.cgi?id=46143

On Sun, May 31, 2020 at 1:12 AM Fangrui Song <maskray at google.com>
wrote:
>
> On 2020-05-30, Itaru Kitayama via llvm-dev wrote:
> >Hi,
> >On AArch64, I see a lot of warnings like:
> >
> >warning: failed to compute relocation: R_AARCH64_PREL32, Invalid data
> >was encountered while parsing the file
> >
> >when opening object file with llvm-objdump. The llvm-objdump is from
> >trunk at this
> >moment. Is this easy to fix?
>
> Hi Itaru,
>
> Without the object, I am guessing you have an R_AARCH64_PREL32 in a
> .debug_* section in an object file.
>
> lib/Object/RelocationResolver.cpp does not resolve R_AARCH64_PREL32.
>
> Can you upload the object file somewhere so that people can analyze?