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Date:   Tue, 14 Nov 2017 16:13:36 +0800
From:   Fengguang Wu <>
To:     Andi Kleen <>
Cc:     Linus Torvalds <>,
        Jeff Kirsher <>,
        Network Development <>,
        "David S. Miller" <>,
        Linux Kernel Mailing List <>,, Michal Marek <>,
        Sam Ravnborg <>,
        Dirk Gouders <>,,
        "Zhang, Rui" <>,
        "Lu, Aaron" <>, "H.J. Lu" <>
Subject: Re: CONFIG_DEBUG_INFO_SPLIT impacts on faddr2line

Hi Andi,

On Mon, Nov 13, 2017 at 10:52:27AM -0800, Andi Kleen wrote:
>> > It's the "CONFIG_DEBUG_INFO_SPLIT" thing that makes faddr2line unable
>> > to see the inlining information,
>> >
>> > Using OPTIMIZE_INLINING is fine.
>> Good to know that!
>It works for me. Perhaps your binutils is too old? It was
>added at some point. Can you try upgrading?
>% ./linux/scripts/faddr2line obj/vmlinux schedule+10
>schedule at arch/x86/include/asm/current.h:15
>% addr2line --version
>GNU addr2line version 2.27-24.fc26

I use debian and tried addr2line in 2 systems:

GNU addr2line (GNU Binutils for Debian) 2.28
GNU addr2line (GNU Binutils for Debian) 2.29.1


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