On Tue, Apr 13, 2021 at 01:45:39PM -0700, Nick Desaulniers wrote: SNIP > > > > > > > > So I'm not sure precisely what's going on here. I probably have to go > > > > digging around to understand tools/build/feature/ anyways. With your > > > > v3 applied, I consistently see: > > > > No zlib found > > > > and yet, I certainly do have zlib on my host. > > > > https://stackoverflow.com/a/54558861 > > > > > > Jiri, any tips on how to debug feature detection in > > > tools/build/feature/Makefile? > > > > for quick check, there's output file for each test, like: > > > > [jolsa@krava feature]$ ls -l *.make.output > > -rw-rw-r--. 1 jolsa jolsa 0 Apr 8 20:25 test-all.make.output > > -rw-rw-r--. 1 jolsa jolsa 182 Apr 9 15:52 test-bionic.make.output > > -rw-rw-r--. 1 jolsa jolsa 0 Apr 8 20:25 test-cplus-demangle.make.output > > -rw-rw-r--. 1 jolsa jolsa 145 Apr 9 15:52 test-jvmti.make.output > > -rw-rw-r--. 1 jolsa jolsa 0 Apr 8 20:25 test-libbabeltrace.make.output > > -rw-rw-r--. 1 jolsa jolsa 0 Apr 8 20:25 test-libbpf.make.output > > -rw-rw-r--. 1 jolsa jolsa 0 Apr 8 20:25 test-libdebuginfod.make.output > > -rw-rw-r--. 1 jolsa jolsa 193 Apr 9 15:52 test-libunwind-aarch64.make.output > > -rw-rw-r--. 1 jolsa jolsa 177 Apr 9 15:52 test-libunwind-x86.make.output > > [jolsa@krava feature]$ cat test-libunwind-aarch64.make.output > > test-libunwind-aarch64.c:2:10: fatal error: libunwind-aarch64.h: No such file or directory > > 2 | #include <libunwind-aarch64.h> > > | ^~~~~~~~~~~~~~~~~~~~~ > > compilation terminated. > > [jolsa@krava feature]$ cat test-libunwind-x86.make.output > > test-libunwind-x86.c:2:10: fatal error: libunwind-x86.h: No such file or directory > > 2 | #include <libunwind-x86.h> > > | ^~~~~~~~~~~~~~~~~ > > > > zlib should be done by: > > [jolsa@krava feature]$ make test-zlib.bin > > gcc -MD -Wall -Werror -o test-zlib.bin test-zlib.c > test-zlib.make.output 2>&1 -lz > > > > > > I can try to recreate, how do you build? > > See note above, I'm similarly running precisely: > $ make LLVM=1 LLVM_IAS=1 -j72 defconfig > $ make LLVM=1 LLVM_IAS=1 -j72 clean > $ make LLVM=1 LLVM_IAS=1 -j72 -C tools/testing/selftests/bpf for some reason I'm stuck with this error on latest bpf-next/master $ make LLVM=1 LLVM_IAS=1 -C tools/testing/selftests/bpf make[1]: Nothing to be done for 'docs'. CLNG-BPF [test_maps] test_lwt_ip_encap.o CLNG-BPF [test_maps] test_tc_edt.o CLNG-BPF [test_maps] local_storage.o progs/local_storage.c:41:15: error: use of undeclared identifier 'BPF_MAP_TYPE_TASK_STORAGE'; did you mean 'BPF_MAP_TYPE_SK_STORAGE'? __uint(type, BPF_MAP_TYPE_TASK_STORAGE); ^~~~~~~~~~~~~~~~~~~~~~~~~ BPF_MAP_TYPE_SK_STORAGE /home/jolsa/linux/tools/testing/selftests/bpf/tools/include/bpf/bpf_helpers.h:13:39: note: expanded from macro '__uint' #define __uint(name, val) int (*name)[val] ^ /home/jolsa/linux/tools/testing/selftests/bpf/tools/include/vmlinux.h:10317:2: note: 'BPF_MAP_TYPE_SK_STORAGE' declared here BPF_MAP_TYPE_SK_STORAGE = 24, ^ 1 error generated. make: *** [Makefile:448: /home/jolsa/linux/tools/testing/selftests/bpf/local_storage.o] Error 1 make: Leaving directory '/home/jolsa/linux/tools/testing/selftests/bpf' jirka
