On Wed, 2019-02-13 at 10:49 +0000, Luca Boccassi wrote: > On Tue, 2019-02-12 at 17:21 +0100, Thomas Monjalon wrote: > > 12/02/2019 16:03, Bruce Richardson: > > > On Tue, Feb 12, 2019 at 03:47:56PM +0100, Thomas Monjalon wrote: > > > > 12/02/2019 12:43, Bruce Richardson: > > > > > On Tue, Feb 12, 2019 at 12:36:17PM +0100, Thomas Monjalon > > > > > wrote: > > > > > > 12/02/2019 12:31, Bruce Richardson: > > > > > > > On Tue, Feb 12, 2019 at 12:15:43PM +0100, Thomas Monjalon > > > > > > > wrote: > > > > > > > > 06/02/2019 18:08, Luca Boccassi: > > > > > > > > > Whenever possible (if the library ships a pkg-config > > > > > > > > > file) use meson's > > > > > > > > > dependency() function to look for it, as it will > > > > > > > > > automatically add it > > > > > > > > > to the Requires.private list if needed, to allow for > > > > > > > > > static builds to > > > > > > > > > succeed for reverse dependencies of DPDK. Otherwise > > > > > > > > > the > > > > > > > > > recursive > > > > > > > > > dependencies are not parsed, and users doing static > > > > > > > > > builds have to > > > > > > > > > resolve them manually by themselves. > > > > > > > > > When using this API avoid additional checks that are > > > > > > > > > superfluous and > > > > > > > > > take extra time, and avoid adding the linker flag > > > > > > > > > manually which causes > > > > > > > > > it to be duplicated. > > > > > > > > > > > > > > > > > > Signed-off-by: Luca Boccassi <bl...@debian.org> > > > > > > > > > Acked-by: Bruce Richardson <bruce.richard...@intel.co > > > > > > > > > m> > > > > > > > > > > > > > > > > This patch breaks compilation on my machine with a lot > > > > > > > > of > > > > > > > > strange errors: > > > > > > > > > > > > > > > > from drivers/net/pcap/rte_eth_pcap.c > > > > > > > > > > > > > > > > /usr/include/stdint.h:109: error: "__INT64_C" redefined > > > > > > > > /usr/include/bits/stdlib-bsearch.h:32:13: error: cast > > > > > > > > discards 'const' qualifier from pointer target type > > > > > > > > /usr/include/pthread.h:682:6: error: 'regparm' > > > > > > > > attribute > > > > > > > > directive ignored > > > > > > > > etc > > > > > > > > > > > > > > > > > > > > > > Is this on Arch linux again? I just reverified these > > > > > > > first > > > > > > > two patches and > > > > > > > they work fine for me on Fedora (I assume Luca probably > > > > > > > tested them already on > > > > > > > Debian) > > > > > > > > > > > > > > Anything unusual about your setup? > > > > > > > > > > > > Nothing unusual. Just using the best environment ever ;) > > > > > > I will try to debug it. > > > > > > > > > > > > > > > > It may be something pcap-specific, since pcap has to have > > > > > it's > > > > > own special > > > > > query mechanims outside the normal pkg-config one. If you > > > > > remove the > > > > > pcap-driver changes, does the rest of the patch work for you? > > > > > > > > Yes, the issue happens only with pcap on Arm. > > > > Reverting the pcap related changes, it builds fine. > > > > > > > > More infos about my setup: > > > > meson-0.49.1 > > > > aarch64-linux-gnu-gcc-8.2.0 > > > > libpcap-1.9.0 (32 and 64-bit) for x86 > > > > > > > > I think there is a mix between libcap for x86 and Arm > > > > compilation. > > > > Probably a meson bug? > > > > > > > > > > Could well be a meson issue. It may be using the local pcap- > > > config > > > rather > > > than the cross-compilation version [assuming cross-compilation > > > here, though > > > I don't see the issue with my setup]. > > > > > > Thomas, can you apply this set with the pcap driver change > > > dropped, > > > or is it better if Luca does a new version of this set? > > > > I think we need a comment about the pcap miss. > > Probably better to do a new version. > > > > Luca, please could you test cross-compilation? > > Hi, > > I would, except downloading the toolchain from Linaro fails with 403 > forbidden... > > https://releases.linaro.org/components/toolchain/binaries/latest/aarc > h64-linux-gnu/gcc-linaro-7.2.1-2017.11-x86_64_aarch64-linux- > gnu.tar.xz > > I'll try with Debian's cross compiler
I think the issue is that I'm going in circles: https://git.dpdk.org/dpdk/commit/?id=d1e4a5b7320905f025e7caea685708b5eea37456 https://git.dpdk.org/dpdk/commit/?id=6930c0403a1754eb5cab89577565eefa5a9995a1 As Bruce said, the root cause is libpcap's lack of a pkg-config file and usage of a custom tool, which is a known bane for cross compilers. The good news is that 1.9.0 finally added a pkg-config file in addition: https://github.com/the-tcpdump-group/libpcap/commit/a7deb6a241f8c71ca261adc45ac07c8427074792 Given cross-compilation doesn't work at all for me, I'll do a v7 without that snippet. -- Kind regards, Luca Boccassi
