Hi Bruce, CC=clang Meson build did not hit this issue.
The GNU Makefile using clang hit this issue: make config T=arm64-armv8a-linuxapp-clang Best Regards, Gavin -----Original Message----- From: Bruce Richardson <bruce.richard...@intel.com> Sent: Tuesday, May 15, 2018 5:00 PM To: Gavin Hu <gavin...@arm.com> Cc: dev@dpdk.org Subject: Re: [dpdk-dev] [PATCH 1/4] app: add LDFLAGS -latomic to link atomic lib On Tue, May 15, 2018 at 04:28:41AM -0400, Gavin Hu wrote: > For ARM64 platform, libdpdk.a includes the > librte_pmd_octeontx_ssovf.a, which requires the libatomic.a > support.The atomic lib is built-in in the gcc toolchain, but for clang it has > to be explicitly linked. > For more details, please refer to > https://clang.llvm.org/docs/Toolchain.html > > ~/dpdk/build/lib/librte_pmd_octeontx_ssovf.a(timvf_worker.o): In function > `timvf_timer_cancel_burst': > timvf_worker.c:(.text+0x80): undefined reference to `__atomic_fetch_add_8' > /home/gavin/arm_repo/dpdk/build/lib/librte_pmd_octeontx_ssovf.a(timvf_worker.o): > In function `timvf_timer_arm_burst_sp': > timvf_worker.c:(.text+0x200): undefined reference to `__atomic_fetch_add_8' > timvf_worker.c:(.text+0x244): undefined reference to `__atomic_store_2' > timvf_worker.c:(.text+0x278): undefined reference to `__atomic_fetch_add_4' > timvf_worker.c:(.text+0x30c): undefined reference to `__atomic_store_2' > > Signed-off-by: Gavin Hu <gavin...@arm.com> > Reviewed-by: Honnappa Nagarahalli <honnappa.nagaraha...@arm.com> > --- Is an equivalent change also needed for the meson build too? /Bruce IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
