On Mon, Feb 05, 2024 at 09:36:14AM -0300, Roberto Bartzen Acosta via dev 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, Eelco, and Frode, I noticed that this did not apply cleanly to main, and there was a leading '$' missing from the 2nd example. I have resolved those problems and applied the slightly revised patch below as. - Documentation: Adding note about using the jemalloc library. https://github.com/openvswitch/ovs/commit/2832faa22aa0 >From 2832faa22aa09b4bde51381fdfe730161fa22248 Mon Sep 17 00:00:00 2001 From: Roberto Bartzen Acosta <[email protected]> Date: Mon, 5 Feb 2024 09:36:14 -0300 Subject: [PATCH] Documentation: Adding note about using the jemalloc library. Updating the reference documentation with the inclusion of possible building problems with libjemalloc and solution suggestions. Reported-at: https://bugs.launchpad.net/ubuntu/+source/openvswitch/+bug/2015748 Signed-off-by: Roberto Bartzen Acosta <[email protected]> Acked-by: Eelco Chaudron <[email protected]> Reviewed-by: Frode Nordahl <[email protected]> [simon: rebased; added leading '$' to last configure example] Signed-off-by: Simon Horman <[email protected]> --- 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 19e360d47ce4..86e85f75dbff 100644 --- a/Documentation/intro/install/general.rst +++ b/Documentation/intro/install/general.rst @@ -344,6 +344,22 @@ 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" + .. _general-building: Building -- 2.43.0 _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
