On 6/11/19 10:03 AM, Dmitry Vyukov wrote:
On Tue, Jun 11, 2019 at 5:16 PM shuah <shuah@xxxxxxxxxx> wrote:
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.
Hi Shuah,
Thanks for quick reply!
I've installed these: libmount-dev libcap-ng-dev libfuse-dev
libpopt-dev libnuma-dev.
libelf-dev I already had. And for clang I switched to distro-provided one.
This reduced number of errors, but I still see some:
clang: error: unable to execute command: Broken pipe
clang: error: clang frontend command failed due to signal (use -v to
see invocation)
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
Getting bpf compile to work take a few steps. If I remember correctly,
You will need llvm as well. Here is what I have on my system:
ii libllvm6.0:amd 1:6.0-1ubunt amd64 Modular compiler and
toolchain te
ii llvm 1:6.0-41~exp amd64 Low-Level Virtual Machine
(LLVM)
ii llvm-6.0 1:6.0-1ubunt amd64 Modular compiler and
toolchain te
ii llvm-6.0-dev 1:6.0-1ubunt amd64 Modular compiler and
toolchain te
un llvm-6.0-doc <none> <none> (no description available)
ii llvm-6.0-runti 1:6.0-1ubunt amd64 Modular compiler and
toolchain te
ii llvm-runtime 1:6.0-41~exp amd64 Low-Level Virtual Machine
(LLVM),
timestamping.c:249:19: error: ‘SIOCGSTAMP’ undeclared (first use in
this function); did you mean ‘SIOCGSTAMPNS’?
../../lib.mk:138: recipe for target
'/linux/tools/testing/selftests/networking/timestamping/timestamping'
failed
mlock-random-test.c:8:10: fatal error: sys/capability.h: No such file
or directory
Do you have libcap-dev installed?
ii libcap-dev:amd 1:2.25-1.2 amd64 POSIX 1003.1e capabilities
(devel
ii libcap-ng-dev 0.7.7-3.1 amd64 Development and header
files for
ii libcap-ng0:amd 0.7.7-3.1 amd64 An alternate POSIX
capabilities l
ii libcap2:amd64 1:2.25-1.2 amd64 POSIX 1003.1e capabilities
(libra
ii libcap2-bin 1:2.25-1.2 amd64 POSIX 1003.1e capabilities
(utili
un libcap2-dev <none> <none> (no description available)
thanks,
-- Shuah
