I believe this is third party source that you are trying to build, not
using Ubuntu package build procedures, with a non-default compiler.
This is out of scope to provide support for.
Why are you using clang, instead of gcc, btw? I believe you will have
more success if you use the default Ubuntu gcc compiler.
** Changed in: linux (Ubuntu)
Status: New => Invalid
** Changed in: ubuntu-z-systems
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1750388
Title:
17.10 - BPF test tool build with errors
Status in Ubuntu on IBM z Systems:
Invalid
Status in linux package in Ubuntu:
Invalid
Bug description:
Rebuild problem of BPFC test tool with Ubuntu 17.10
uname -a
Linux s8360046 4.13.0-16-generic #19-Ubuntu SMP Wed Oct 11 18:33:05 UTC 2017
s390x s390x s390x GNU/Linux
cat ./etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=17.10
DISTRIB_CODENAME=artful
DISTRIB_DESCRIPTION="Ubuntu 17.10"
root@s8360046:/#
When I compile file test_pkt_access.c in directory
linux/tools/testing/selftest/bpf I get a compile error.
root@s8360046:~/linux/tools/testing/selftests/bpf# clang -I. -I./include/uapi
-I../../../include/uapi -Wno-compare-distinct-pointer-types -O2 -target bpf
-emit-llvm -c test_pkt_access.c -o -
In file included from test_pkt_access.c:8:
/usr/include/string.h:26:10: fatal error: 'bits/libc-header-start.h' file not
found
#include <bits/libc-header-start.h>
^~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
#
File bits/libc-header-start.h is located in directory
/usr/include/s390x-linux-gnu which is not part of the include directory list:
# find /usr/ -name libc-header-start.h
/usr/include/s390x-linux-gnu/bits/libc-header-start.h
#
When I add this directory to the include pathes of the compile, I get another
error:
# clang -I. -I./include/uapi -I../../../include/uapi
-I/usr/include/s390x-linux-gnu -Wno-compare-distinct-pointer-types -O2 -target
bpf -emit-llvm -c test_pkt_access.c -o -
In file included from test_pkt_access.c:12:
In file included from /usr/include/linux/ip.h:20:
In file included from /usr/include/s390x-linux-gnu/asm/byteorder.h:4:
In file included from /usr/include/linux/byteorder/big_endian.h:12:
In file included from /usr/include/linux/swab.h:6:
/usr/include/s390x-linux-gnu/asm/swab.h:52:5: error: invalid output constraint
'=&d' in asm
: "=&d" (result) : "Q" (*x) : "cc");
^
/usr/include/s390x-linux-gnu/asm/swab.h:80:5: error: invalid output constraint
'=&d' in asm
: "=&d" (result) : "Q" (*x) : "cc");
^
2 errors generated.
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