linux-kernel - Re: [rust:rust-next 2/24] ld.lld: error: kernel/built-in.a(kallsyms.o):(function get_symbol_offset: .text+0x5f0): relocation R_RISCV_PCREL_HI20 out of range: -524435 is not in [-524288, 524287]; references kallsyms

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Date:   Fri, 3 Jun 2022 13:01:52 +0200
From:   Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To:     kernel test robot <yujie.liu@...el.com>
Cc:     Miguel Ojeda <ojeda@...nel.org>, kbuild-all@...ts.01.org,
        llvm@...ts.linux.dev,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [rust:rust-next 2/24] ld.lld: error: kernel/built-in.a(kallsyms.o):(function
 get_symbol_offset: .text+0x5f0): relocation R_RISCV_PCREL_HI20 out of range:
 -524435 is not in [-524288, 524287]; references kallsyms_names

On Fri, Jun 3, 2022 at 12:32 PM kernel test robot <yujie.liu@...el.com> wrote:
>
>  >> ld.lld: error: kernel/built-in.a(kallsyms.o):(function get_symbol_offset: .text+0x5f0): relocation R_RISCV_PCREL_HI20 out of range: -524435 is not in [-524288, 524287]; references kallsyms_names
>     >>> referenced by kallsyms.c
>     >>> defined in kernel/built-in.a(kallsyms.o)

There are similar reports for the same relocation type in trees
without Rust support merged, so this might not be being triggered by
Rust itself, e.g.:

    https://lore.kernel.org/llvm/202206010956.rOpdU4dr-lkp@intel.com/
    https://lore.kernel.org/llvm/202205280837.PPVZBhXr-lkp@intel.com/

Cheers,
Miguel