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Re: [PATCH 2/4] livepatch: improve rune for fetching of Build ID
- To: Roger Pau Monne <roger.pau@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
- Date: Tue, 8 Mar 2022 13:47:48 +0000
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- Cc: "konrad.wilk@xxxxxxxxxx" <konrad.wilk@xxxxxxxxxx>, "doebel@xxxxxxxxx" <doebel@xxxxxxxxx>, "julien@xxxxxxx" <julien@xxxxxxx>, Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxxx>
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- Thread-topic: [PATCH 2/4] livepatch: improve rune for fetching of Build ID
> From: Roger Pau Monne <roger.pau@xxxxxxxxxx>
> Sent: Wednesday, March 2, 2022 2:27 PM
> To: xen-devel@xxxxxxxxxxxxxxxxxxxx <xen-devel@xxxxxxxxxxxxxxxxxxxx>
> Cc: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>; konrad.wilk@xxxxxxxxxx
> <konrad.wilk@xxxxxxxxxx>; doebel@xxxxxxxxx <doebel@xxxxxxxxx>; julien@xxxxxxx
> <julien@xxxxxxx>; Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx>; Roger Pau Monne
> <roger.pau@xxxxxxxxxx>; Roger Pau Monné <roger.pau@xxxxxxxxxxx>
> Subject: [PATCH 2/4] livepatch: improve rune for fetching of Build ID
>
> The current one is broken with my version of readelf and returns
> 'NT_GNU_BUILD_ID'.
>
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxxx>
> ---
> README.md | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/README.md b/README.md
> index b48a3df..948a7de 100644
> --- a/README.md
> +++ b/README.md
> @@ -16,7 +16,7 @@ $ cp -r ~/src/xen ~/src/xenbuild
> $ cd ~/src/xen/xen
> $ make nconfig # Make sure to set CONFIG_LIVEPATCH=y
> $ make
> -$ BUILDID=$(readelf -Wn xen-syms | awk '/Build ID:/ {print $3}')
> +$ BUILDID=$(readelf -Wn xen-syms | sed -n -e 's/^.*Build ID: //p')
> ```
>
> Next, build a live patch, using a patch and the source, build ID, and
> --
> 2.34.1
Reviewed-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
|
