Arnaldo Carvalho de Melo <a...@kernel.org> [Wed, 2018-10-31 07:12 -0700]: > 17 40.66 debian:9 : FAIL gcc (Debian > 6.3.0-18+deb9u1) 6.3.0 20170516 > > The failure was with clang tho: > > clang version 3.8.1-24 (tags/RELEASE_381/final) > > With: > > gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1) > > it built without any warnings/errors. > > CC /tmp/build/perf/libbpf.o > libbpf.c:2201:36: error: comparison of constant -22 with expression of type > 'const enum bpf_attach_type' is always false > [-Werror,-Wtautological-constant-out-of-range-compare] > if (section_names[i].attach_type == -EINVAL) > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~ > 1 error generated.
Hi Arnaldo, I have a clang version that I can reproduce this error with. Working on patch. Thank you for report! > CC /tmp/build/perf/help.o > mv: cannot stat '/tmp/build/perf/.libbpf.o.tmp': No such file or directory > /git/linux/tools/build/Makefile.build:96: recipe for target > '/tmp/build/perf/libbpf.o' failed > make[4]: *** [/tmp/build/perf/libbpf.o] Error 1 > > This is the cset: > > commit 956b620fcf0b64de403cd26a56bc41e6e4826ea6 > Author: Andrey Ignatov <r...@fb.com> > Date: Wed Sep 26 15:24:53 2018 -0700 > > libbpf: Introduce libbpf_attach_type_by_name > > ------------------------ > > Tests are continuing, so far: > > 1 43.53 alpine:3.4 : Ok gcc (Alpine 5.3.0) 5.3.0 > 2 58.62 alpine:3.5 : Ok gcc (Alpine 6.2.1) 6.2.1 > 20160822 > 3 51.62 alpine:3.6 : Ok gcc (Alpine 6.3.0) 6.3.0 > 4 51.68 alpine:3.7 : Ok gcc (Alpine 6.4.0) 6.4.0 > 5 49.38 alpine:3.8 : Ok gcc (Alpine 6.4.0) 6.4.0 > 6 79.07 alpine:edge : Ok gcc (Alpine 6.4.0) 6.4.0 > 7 63.35 amazonlinux:1 : Ok gcc (GCC) 4.8.5 20150623 > (Red Hat 4.8.5-28) > 8 59.65 amazonlinux:2 : Ok gcc (GCC) 7.3.1 20180303 > (Red Hat 7.3.1-5) > 9 47.39 android-ndk:r12b-arm : Ok arm-linux-androideabi-gcc > (GCC) 4.9.x 20150123 (prerelease) > 10 50.64 android-ndk:r15c-arm : Ok arm-linux-androideabi-gcc > (GCC) 4.9.x 20150123 (prerelease) > 11 28.75 centos:5 : Ok gcc (GCC) 4.1.2 20080704 > (Red Hat 4.1.2-55) > 12 33.26 centos:6 : Ok gcc (GCC) 4.4.7 20120313 > (Red Hat 4.4.7-23) > 13 43.16 centos:7 : Ok gcc (GCC) 4.8.5 20150623 > (Red Hat 4.8.5-28) > 14 73.61 clearlinux:latest : FAIL gcc (Clear Linux OS for > Intel Architecture) 8.2.1 20180502 > 15 45.56 debian:7 : Ok gcc (Debian 4.7.2-5) 4.7.2 > 16 45.53 debian:8 : Ok gcc (Debian > 4.9.2-10+deb8u1) 4.9.2 > 17 40.66 debian:9 : FAIL gcc (Debian > 6.3.0-18+deb9u1) 6.3.0 20170516 > 18 113.19 debian:experimental : Ok gcc (Debian 8.2.0-8) 8.2.0 > 19 41.48 debian:experimental-x-arm64 : Ok aarch64-linux-gnu-gcc > (Debian 8.2.0-7) 8.2.0 > 20 41.51 debian:experimental-x-mips : Ok mips-linux-gnu-gcc (Debian > 8.2.0-7) 8.2.0 > 21 40.09 debian:experimental-x-mips64 : Ok mips64-linux-gnuabi64-gcc > (Debian 8.1.0-12) 8.1.0 > 22 42.17 debian:experimental-x-mipsel : Ok mipsel-linux-gnu-gcc > (Debian 8.2.0-7) 8.2.0 > 23 40.02 fedora:20 : Ok gcc (GCC) 4.8.3 20140911 > (Red Hat 4.8.3-7) > 24 45.47 fedora:21 : Ok gcc (GCC) 4.9.2 20150212 > (Red Hat 4.9.2-6) > 25 41.64 fedora:22 : Ok gcc (GCC) 5.3.1 20160406 > (Red Hat 5.3.1-6) > 26 43.60 fedora:23 : Ok gcc (GCC) 5.3.1 20160406 > (Red Hat 5.3.1-6) > 27 44.04 fedora:24 : Ok gcc (GCC) 6.3.1 20161221 > (Red Hat 6.3.1-1) > 28 37.21 fedora:24-x-ARC-uClibc : Ok arc-linux-gcc (ARCompact > ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710 > > The problem with clearlinux is unrelated: > > clang-7: error: unknown argument: '-fno-semantic-interposition' > clang-7: error: unsupported argument '4' to option 'flto=' > clang-7: error: optimization flag '-ffat-lto-objects' is not supported > [-Werror,-Wignored-optimization-argument] > -- Andrey Ignatov
