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Message-ID: <Y3BeTbHxj9OmmmIY@bombadil.infradead.org>
Date:   Sat, 12 Nov 2022 19:02:37 -0800
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     Nick Alcock <nick.alcock@...cle.com>
Cc:     masahiroy@...nel.org, linux-modules@...r.kernel.org,
        linux-kernel@...r.kernel.org, arnd@...db.de,
        akpm@...ux-foundation.org, eugene.loh@...cle.com,
        kris.van.hees@...cle.com, thunder.leizhen@...wei.com
Subject: Re: [PATCH v9 3/8] kbuild: generate an address ranges map at vmlinux
 link time

On Wed, Nov 09, 2022 at 01:41:27PM +0000, Nick Alcock wrote:
> This emits a new file, .tmp_vmlinux.ranges, which maps address
> range/size pairs in vmlinux to the object files which make them up,
> e.g., in part:
> 
> 0x0000000000000000 0x30 arch/x86/kernel/cpu/common.o
> 0x0000000000001000 0x1000 arch/x86/events/intel/ds.o
> 0x0000000000002000 0x4000 arch/x86/kernel/irq_64.o
> 0x0000000000006000 0x5000 arch/x86/kernel/process.o
> 0x000000000000b000 0x1000 arch/x86/kernel/cpu/common.o
> 0x000000000000c000 0x5000 arch/x86/mm/cpu_entry_area.o
> 0x0000000000011000 0x10 arch/x86/kernel/espfix_64.o
> 0x0000000000011010 0x2 arch/x86/kernel/cpu/common.o
> [...]

This does't say why we'd want this. So either you merge it with its
first user or you explain here why anyone might find this useful.

  Luis

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