Arnaldo Carvalho de Melo [Wed, 2018-10-31 07:12 -0700]:
> 1740.66 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
> Date: Wed Sep 26 15:24:53 2018 -0700
>
> libbpf: Introduce libbpf_attach_type_by_name
>
>
>
> Tests are continuing, so far:
>
>143.53 alpine:3.4: Ok gcc (Alpine 5.3.0) 5.3.0
>258.62 alpine:3.5: Ok gcc (Alpine 6.2.1) 6.2.1
> 20160822
>351.62 alpine:3.6: Ok gcc (Alpine 6.3.0) 6.3.0
>451.68 alpine:3.7: Ok gcc (Alpine 6.4.0) 6.4.0
>549.38 alpine:3.8: Ok gcc (Alpine 6.4.0) 6.4.0
>679.07 alpine:edge : Ok gcc (Alpine 6.4.0) 6.4.0
>763.35 amazonlinux:1 : Ok gcc (GCC) 4.8.5 20150623
> (Red Hat 4.8.5-28)
>859.65 amazonlinux:2 : Ok gcc (GCC) 7.3.1 20180303
> (Red Hat 7.3.1-5)
>947.39 android-ndk:r12b-arm : Ok arm-linux-androideabi-gcc
> (GCC) 4.9.x 20150123 (prerelease)
> 1050.64 android-ndk:r15c-arm : Ok arm-linux-androideabi-gcc
> (GCC) 4.9.x 20150123 (prerelease)
> 1128.75 centos:5 : Ok gcc (GCC) 4.1.2 20080704
> (Red Hat 4.1.2-55)
> 1233.26 centos:6 : Ok gcc (GCC) 4.4.7 20120313
> (Red Hat 4.4.7-23)
> 1343.16 centos:7 : Ok gcc (GCC) 4.8.5 20150623
> (Red Hat 4.8.5-28)
> 1473.61 clearlinux:latest : FAIL gcc (Clear Linux OS for
> Intel Architecture) 8.2.1 20180502
> 1545.56 debian:7 : Ok gcc (Debian 4.7.2-5) 4.7.2
> 1645.53 debian:8 : Ok gcc (Debian
> 4.9.2-10+deb8u1) 4.9.2
> 1740.66 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
> 1941.48 debian:experimental-x-arm64 : Ok aarch64-linux-gnu-gcc
> (Debian 8.2.0-7) 8.2.0
> 2041.51 debian:experimental-x-mips: Ok mips-linux-gnu-gcc (Debian
> 8.2.0-7) 8.2.0
> 2140.09 debian:experimental-x-mips64 : Ok mips64-linux-gnuabi64-gcc
> (Debian 8.1.0-12) 8.1.0
> 2242.17 debian:experimental-x-mipsel : Ok mipsel-linux-gnu-gcc
> (Debian 8.2.0-7) 8.2.0
> 2340.02 fedora:20 : Ok gcc (GCC) 4.8.3 20140911
> (Red Hat 4.8.3-7)
> 2445.47 fedora:21 : Ok gcc (GCC) 4.9.2 20150212
> (Red Hat 4.9.2-6)
> 2541.64 fedora:22 : Ok gcc (GCC) 5.3.1 20160406
> (Red Hat 5.3.1-6)
> 2643.60 fedora:23 : Ok gcc (GCC) 5.3.1 20160406
> (Red Hat 5.3.1-6)
> 2744.04 fedora:24 : Ok gcc (GCC) 6.3.1 20161221
> (Red Hat 6.3.1-1)
> 2837.21 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
