Hi Xiaoming,
We met the same problem on CentOS 7 and proposed a
patch(https://gerrit.fd.io/r/c/vpp/+/31421) to resolve this issue.
It looks to me that the root cause is the different declaration scheme for
struct udphdr in musl libc and glibc. In older glibc(less than 2.19), field
names of uh_sport/uh_dport are only used if macro __FAVOR_BSD is defined
according to the header file. But we won’t encounter this issue with musl libc
if macro _GNU_SOURCE is defined like Ben mentioned in
https://gerrit.fd.io/r/c/vpp/+/30790/8/src/vppinfra/unix-formats.c#320 .
Anyway, this is just my thought and needs confirmation from VPP maintainers.
But you can check your glibc version and try if this patch works for you.
Thanks,
Jieqiang Wang
From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of jiangxiaoming via
lists.fd.io
Sent: Thursday, March 4, 2021 10:25 AM
To: vpp-dev@lists.fd.io
Subject: [vpp-dev] a compiling error on vpp master
Hi guys:
I have a compiling error on vpp master, is thre anyone have the save
problem?
VPP library version : 21.06
GIT toplevel dir : /home/dev/code/vpp
Build type : debug
C flags : -Wno-address-of-packed-member -g -fPIC -Werror -Wall
-march=corei7 -mtune=corei7-avx -O0 -DCLIB_DEBUG -fstack-protector -fno-common
Linker flags (apps) : -z execstack
Linker flags (libs) : -z execstack
Host processor : x86_64
Target processor : x86_64
Prefix path :
/opt/vpp/external/x86_64;/home/dev/code/vpp/build-root/install-vpp_debug-native/external
Install prefix : /home/dev/code/vpp/build-root/install-vpp_debug-native/vpp
-- Configuring done
-- Generating done
-- Build files have been written to:
/home/dev/code/vpp/build-root/build-vpp_debug-native/vpp
@@@@ Building vpp in /home/dev/code/vpp/build-root/build-vpp_debug-native/vpp
@@@@
[554/2614] Building C object vppinfra/CMakeFiles/vppinfra.dir/unix-formats.c.o
FAILED: vppinfra/CMakeFiles/vppinfra.dir/unix-formats.c.o
ccache /opt/rh/devtoolset-9/root/bin/cc -Dvppinfra_EXPORTS
-I/home/dev/code/vpp/src -I. -Iinclude -Wno-address-of-packed-member -g -fPIC
-Werror -Wall -march=corei7 -mtune=corei7-avx -O0 -DCLIB_DEBUG
-fstack-protector -fno-common -fPIC -fvisibility=hidden -MD -MT
vppinfra/CMakeFiles/vppinfra.dir/unix-formats.c.o -MF
vppinfra/CMakeFiles/vppinfra.dir/unix-formats.c.o.d -o
vppinfra/CMakeFiles/vppinfra.dir/unix-formats.c.o -c
/home/dev/code/vpp/src/vppinfra/unix-formats.c
/home/dev/code/vpp/src/vppinfra/unix-formats.c: In function
‘format_udp4_packet’:
/home/dev/code/vpp/src/vppinfra/unix-formats.c:319:19: error: ‘struct udphdr’
has no member named ‘uh_sport’
319 | u16 source = udp->uh_sport;
| ^~
/home/dev/code/vpp/src/vppinfra/unix-formats.c:320:17: error: ‘struct udphdr’
has no member named ‘uh_dport’
320 | u16 dest = udp->uh_dport;
| ^~
[565/2614] Building C object svm/CMakeFiles/svm.dir/fifo_segment.c.o
ninja: build stopped: subcommand failed.
make[1]: *** [vpp-build] Error 1
make[1]: Leaving directory `/home/dev/code/vpp/build-root'
make: *** [build] Error 2
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