linux-kernel - Re: [PATCH 17/18] objtool: Remove --lto and --vmlinux

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Message-ID: <YlfXvlvNmCYFIq0w@hirez.programming.kicks-ass.net>
Date:   Thu, 14 Apr 2022 10:13:50 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        Miroslav Benes <mbenes@...e.cz>
Subject: Re: [PATCH 17/18] objtool: Remove --lto and --vmlinux

On Wed, Apr 13, 2022 at 04:19:52PM -0700, Josh Poimboeuf wrote:

> @@ -131,6 +131,12 @@ static inline u32 reloc_hash(struct reloc *reloc)
>  	return sec_offset_hash(reloc->sec, reloc->offset);
>  }
>  
> +/* is it a whole archive (vmlinux.o or module)? */
> +static inline bool is_linked_object(struct elf *elf)
> +{
> +	return elf->num_files > 1;
> +}
> +
>  struct elf *elf_open_read(const char *name, int flags);
>  struct section *elf_create_section(struct elf *elf, const char *name, unsigned int sh_flags, size_t entsize, int nr);

Ooh, nice... yes, that was the entire point of --lto.