From: Michael Ellerman <mpe@ellerman•id.au>
To: "Naveen N. Rao" <naveen.n.rao@linux•vnet.ibm.com>
Cc: linuxppc-dev@lists•ozlabs.org
Subject: Re: [PATCH] powerpc: Include .BTF section
Date: Mon, 24 Feb 2020 11:29:47 +1100 [thread overview]
Message-ID: <8736b0j090.fsf@mpe.ellerman.id.au> (raw)
In-Reply-To: <20200220113132.857132-1-naveen.n.rao@linux.vnet.ibm.com>
"Naveen N. Rao" <naveen.n.rao@linux•vnet.ibm.com> writes:
> Selecting CONFIG_DEBUG_INFO_BTF results in the below warning from ld:
> ld: warning: orphan section `.BTF' from `.btf.vmlinux.bin.o' being placed in section `.BTF'
>
> Include .BTF section in vmlinux explicitly to fix the same.
I don't see any other architectures doing this in their linker script.
Why are we special?
cheers
> diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
> index b4c89a1acebb..a32d478a7f41 100644
> --- a/arch/powerpc/kernel/vmlinux.lds.S
> +++ b/arch/powerpc/kernel/vmlinux.lds.S
> @@ -303,6 +303,12 @@ SECTIONS
> *(.branch_lt)
> }
>
> +#ifdef CONFIG_DEBUG_INFO_BTF
> + .BTF : AT(ADDR(.BTF) - LOAD_OFFSET) {
> + *(.BTF)
> + }
> +#endif
> +
> .opd : AT(ADDR(.opd) - LOAD_OFFSET) {
> __start_opd = .;
> KEEP(*(.opd))
> --
> 2.24.1
next prev parent reply other threads:[~2020-02-24 0:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-20 11:31 [PATCH] powerpc: Include .BTF section Naveen N. Rao
2020-02-24 0:29 ` Michael Ellerman [this message]
2020-02-24 4:03 ` Naveen N. Rao
2020-02-24 11:03 ` Michael Ellerman
2020-02-27 12:31 ` Michael Ellerman
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