On Mon, Feb 5, 2024 at 1:35 PM Roberto Bartzen Acosta via dev
<[email protected]> wrote:
>
> Updating the reference documentation with the inclusion of possible building
> problems with libjemalloc and solution suggestions.
>
> Reported-at: 
> https://bugs.launchpad.net/ubuntu/+source/openvswitch/+bug/2015748
> Signed-off-by: Roberto Bartzen Acosta <[email protected]>

Thanks, Roberto!

Reviewed-by: Frode Nordahl <[email protected]>

-- 
Frode Nordahl

> ---
>  Documentation/intro/install/general.rst | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>
> diff --git a/Documentation/intro/install/general.rst 
> b/Documentation/intro/install/general.rst
> index ab6209482..986913a91 100644
> --- a/Documentation/intro/install/general.rst
> +++ b/Documentation/intro/install/general.rst
> @@ -308,6 +308,22 @@ you wish to link with jemalloc add it to LIBS::
>
>      $ ./configure LIBS=-ljemalloc
>
> +.. note::
> +  Linking Open vSwitch with the jemalloc shared library may not work as
> +  expected in certain operating system development environments. You can
> +  override the automatic compiler decision to avoid possible linker issues by
> +  passing ``-fno-lto`` or ``-fno-builtin`` flag since the jemalloc override
> +  standard built-in memory allocation functions such as malloc, calloc, etc.
> +  Both options can solve possible jemalloc linker issues with pros and cons 
> for
> +  each case, feel free to choose the path that appears best to you. Disabling
> +  LTO flag example::
> +
> +      $ ./configure LIBS=-ljemalloc CFLAGS="-g -O2 -fno-lto"
> +
> +  Disabling built-in flag example::
> +
> +      ./configure LIBS=-ljemalloc CFLAGS="-g -O2 -fno-builtin"
> +
>  Example usage::
>      $ # Clone OVS repo
>      $cd /home/foo/ovs
> --
> 2.25.1
>
>
> --
>
>
>
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