When compiling DPDK with all examples, the performance thread fails to build due to implicit declaration of pthread-related functions. Here is some example output: # meson dpdk dpdk/build -Dexamples=all --buildtype=debugoptimized The Meson build system Version: 0.58.1 ... Project version: 21.08.0-rc1 C compiler for the host machine: ccache cc (gcc 10.3.1 "cc (Alpine 10.3.1_git20210424) 10.3.1 20210424") C linker for the host machine: cc ld.bfd 2.35.2 Host machine cpu family: x86_64 Host machine cpu: x86_64 Message: ## Building in Developer Mode ## ... Option buildtype is: debugoptimized [default: release] Found ninja-1.10.0.git.kitware.jobserver-1 at /usr/bin/ninja # ninja -C dpdk/build ... ../examples/performance-thread/pthread_shim/main.c: In function 'initial_lthread': ../examples/performance-thread/pthread_shim/main.c:158:3: warning: implicit declaration of function 'pthread_attr_setaffinity_np'; did you mean 'pthread_setaffinity_np'? [-Wimplicit-function-declaration] 158 | pthread_attr_setaffinity_np(&attr, sizeof(rte_cpuset_t), &cpuset); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ | pthread_setaffinity_np ../examples/performance-thread/pthread_shim/main.c:158:3: warning: nested extern declaration of 'pthread_attr_setaffinity_np' [-Wnested-externs] [137/2865] Compiling C object examples/dpdk-bbdev_app.p/bbdev_app_main.c.o ninja: build stopped: subcommand failed.
Created attachment 167 [details] Full Log
Maybe that we should just drop this example.
git info: dpdk stable 21.11.2-rc1 OS: Fedora Linux 36 (Server Edition)/Linux 5.17.7-300.fc36.x86_64 gcc: version 12.1.1 20220507 build command: CC=gcc meson --werror -Denable_kmods=True -Dlibdir=lib -Dexamples=all --default-library=static gcc-linux-app && ninja -C gcc-linux-app
(In reply to gaodaxue from comment #3) > git info: dpdk stable 21.11.2-rc1 > OS: Fedora Linux 36 (Server Edition)/Linux 5.17.7-300.fc36.x86_64 > gcc: version 12.1.1 20220507 > build command: > CC=gcc meson --werror -Denable_kmods=True -Dlibdir=lib -Dexamples=all > --default-library=static gcc-linux-app && ninja -C gcc-linux-app This gives the compile test setup, but it doesn't say what the issue you are seeing is. Are you reporting the same -Wimplicit-function-declaration issue? I am seeing a "-Wmaybe-uninitialized" warning with GCC12. I have sent a patch [1] to squash the warning in 21.11 branch with GCC12. Performance-thread example has been removed from DPDK main branch. [1] http://inbox.dpdk.org/stable/20220824095816.1449620-1-ktraynor@redhat.com/T/#u
The 21.11 branch issue I referenced in Comment 4 was reported separately in https://bugs.dpdk.org/show_bug.cgi?id=1061 . It is now resolved. The original reported bug on DPDK main is no longer relevant as performance-thread example has been removed. Proposing to close this Bug if there no further comments.