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Date:   Fri, 25 Nov 2022 20:25:29 +0100
From:   Borislav Petkov <bp@alien8.de>
To:     Petr Pavlu <petr.pavlu@suse.com>
Cc:     tglx@linutronix.de, mingo@redhat.com, dave.hansen@linux.intel.com,
        x86@kernel.org, hpa@zytor.com, nicolas@fjasle.eu,
        masahiroy@kernel.org, kirill.shutemov@linux.intel.com,
        tony.luck@intel.com, michael.roth@amd.com, nathan@kernel.org,
        ndesaulniers@google.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] x86: Avoid relocation information in final vmlinux
Message-ID: <Y4EWqbCTBYEF8LOf@zn.tnic>
References: <20220927084632.14531-1-petr.pavlu@suse.com>
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On Tue, Sep 27, 2022 at 10:46:32AM +0200, Petr Pavlu wrote:
> diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
> index 35ce1a64068b..eba7709d75ae 100644
> --- a/arch/x86/boot/compressed/Makefile
> +++ b/arch/x86/boot/compressed/Makefile
> @@ -120,14 +120,12 @@ $(obj)/vmlinux.bin: vmlinux FORCE
>  
>  targets += $(patsubst $(obj)/%,%,$(vmlinux-objs-y)) vmlinux.bin.all vmlinux.relocs
>  
> -CMD_RELOCS = arch/x86/tools/relocs
> -quiet_cmd_relocs = RELOCS  $@
> -      cmd_relocs = $(CMD_RELOCS) $< > $@;$(CMD_RELOCS) --abs-relocs $<
> -$(obj)/vmlinux.relocs: vmlinux FORCE
> -	$(call if_changed,relocs)
> +# vmlinux.relocs is created by the vmlinux postlink step.
> +vmlinux.relocs: vmlinux
> +	@true
>  
>  vmlinux.bin.all-y := $(obj)/vmlinux.bin
> -vmlinux.bin.all-$(CONFIG_X86_NEED_RELOCS) += $(obj)/vmlinux.relocs
> +vmlinux.bin.all-$(CONFIG_X86_NEED_RELOCS) += vmlinux.relocs

Any particular reason why vmlinux.relocs must move out of $(obj)/ where
it resides now?

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette