Hi Dmitry, On 6/11/19 4:30 AM, Dmitry Vyukov wrote:
Hi, I've tried to build kselftests for several years now, but I always find the build broken. Which makes me wonder if the instructions are broken or something. I follow the instructions in Documentation/dev-tools/kselftest.rst and start with "make -C tools/testing/selftests". Here is the errors I get on the upstream commit 16d72dd4891fecc1e1bf7ca193bb7d5b9804c038: > error: unable to create target: 'No available targets are compatible with triple "bpf"' 1 error generated. Makefile:259: recipe for target 'elfdep' failed Makefile:156: recipe for target 'all' failed Makefile:106: recipe for target '/linux/tools/testing/selftests/bpf/libbpf.a' failed test_execve.c:4:10: fatal error: cap-ng.h: No such file or directory
These errors are due to missing dependencies. You will need libmount-dev libcap-ng-dev libelf-dev for bpf to build and also clang
../lib.mk:138: recipe for target '/linux/tools/testing/selftests/capabilities/test_execve' failed gpio-mockup-chardev.c:20:10: fatal error: libmount.h: No such file or directory > <builtin>: recipe for target 'gpio-mockup-chardev' failed fuse_mnt.c:17:10: fatal error: fuse.h: No such file or directory
libfuse-dev is missing.
../lib.mk:138: recipe for target '/linux/tools/testing/selftests/memfd/fuse_mnt' failed collect2: error: ld returned 1 exit status ../lib.mk:138: recipe for target '/linux/tools/testing/selftests/mqueue/mq_open_tests' failed
Needs libpopt-dev
reuseport_bpf_numa.c:24:10: fatal error: numa.h: No such file or directory
Needs libnuma-dev
../lib.mk:138: recipe for target '/linux/tools/testing/selftests/net/reuseport_bpf_numa' failed mlock-random-test.c:8:10: fatal error: sys/capability.h: No such file or directory > ../lib.mk:138: recipe for target '/linux/tools/testing/selftests/vm/mlock-random-test' failed Here is full log: https://gist.githubusercontent.com/dvyukov/47430636e160f297b657df5ba2efa82b/raw/7babc4db228b88f341a376c15e8bc9c4c3b02160/gistfile1.txt I have libelf-dev installed. Do I need to install something else? Or run some other command?
ii libelf-dev:amd 0.170-0.4ubu amd64 libelf1 development libraries and ii libelf1:amd64 0.170-0.4ubu amd64 library to read and write ELF fil
All of the above built for me on Linux 5.2-rc4. Try installing all of these and let me know if you still see problems. thanks, -- Shuah
