Session 01 Practice 03 Mount 9pfs Build Failed

[chaetodontidae]

I am a beginner to unikraft, I follow steps on 03-tutorial-mount-9pfs but it fail to build.
Failure information:

Virtual Machine I used:
ova provided in setup page
steps I have taken:

1. clone docs on /home/unikraft
2. replace main.c in 03-mount-9pfs with main.c in ../../sol/04-store-strings
3. clone lwip and newlib into ~/hack-athens-2023/libs
4. run make menuconfig: Select Below
   Platform Configuration ---> KVM guest
   Library Configuration ---> lwip
   Library Configuration ---> libnewlib
   Library Configuration ---> vfscore： Configuration ---> Automatically mount a root filesystem --> Default root filesystem 9PFS
5. edit Makefile
   
6. mkdir fs0
7. run make

Build Output Details:
make[1]: Entering directory '/home/unikraft/hack-athens-2023/unikraft'
MKDIR lxdialog
MAKE kconfig
CP config
WGET liblwip: https://github.com/unikraft/fork-lwip/archive/refs/heads/UNIKRAFT-2_1_x.zip
/home/unikraft/docs/content/en/community/hackatho [ <=> ] 1.43M 281KB/s in 5.2s
UNZIP liblwip: UNIKRAFT-2_1_x.zip
PATCH liblwip: 0001-timeval-for-socket-c.patch
PATCH liblwip: 0002-Don-t-provide-file-status-flags-when-we-have-a-libc.patch
PATCH liblwip: 0003-Declare-mem_-functions-only-for-lwip-internal-use.patch
PATCH liblwip: 0004-src-include-lwip-sockets.h-Add-ipi_spec_dst-field-to.patch
PATCH liblwip: 0005-patches-Add-more-fields-to-struct-ifreq.patch
PATCH liblwip: 0006-eventpoll.patch
PATCH liblwip: 0007-src-include-Make-lwip-sockets.h-compatible-with-Musl.patch
PATCH liblwip: 0008-src-include-Make-lwip-inet.h-compatible-with-Musl.patch
PATCH liblwip: 0009-src-api-Make-netdb.c-compatible-with-Musl.patch
PATCH liblwip: 0010-src-api-Make-sockets.c-compatible-with-Musl.patch
PATCH liblwip: 0011-src-include-Make-lwip-sockets.h-compatible-with-Linux-kernel.h
WGET libnewlibc: http://sourceware.org/pub/newlib/newlib-2.5.0.20170922.tar.gz
/home/unikraft/docs/content/en/community/hackatho 100%[===========================================================================================================>] 17.32M 24.9KB/s in 15m 13s
SHA256 libnewlibc: newlib-2.5.0.20170922.tar.gz
UNTAR libnewlibc: newlib-2.5.0.20170922.tar.gz
PATCH libnewlibc: 0001-set-default-READ_WRITE_RETURN_TYPE-to-ssize_t.patch
PATCH libnewlibc: 0002-Fixed-fwrite.patch
PATCH libnewlibc: 0003-sys-stat.h-provide-st-a-c-m-tim.patch
PATCH libnewlibc: 0004-Fix-setgroups-declaration.patch
PATCH libnewlibc: 0005-sys-stat.h-fix-lstat_mknod-declaration.patch
PATCH libnewlibc: 0006-Add-si_addr-field-for-siginfo_t-and-use-rtems-de.patch
PATCH libnewlibc: 0007-Add-forward-declaration-in-order-to-avoid-warnings-b.patch
PATCH libnewlibc: 0008-Apply-hackish-patch-in-order-to-include-custom-mallo.patch
PATCH libnewlibc: 0009-stdatomic.h-Fix-atomic-definitions.patch
PATCH libnewlibc: 0010-enable-per-library-allocator-statistics.patch
PATCH libnewlibc: 0011-Fix-alloc_size-warning-when-using-gcc-11.patch
PATCH libnewlibc: 0012-newlib-include-sys-Fix-MAX-and-MIN-redefinition.patch
PATCH libnewlibc: 0013-newlib-libc-Increase-FD_SETSIZE-limit.patch
PATCH libnewlibc: 0014-Fix-type-macro.patch
PATCH libnewlibc: 0015-Add-time.h.patch
PATCH libnewlibc: 0016-Add-Linux-specific-O_-flags.patch
PATCH libnewlibc: 0017-Remove-__nonnull-coliding-with-existent-macro.patch
CC libkvmplat: trace.common.o
CC libkvmplat: traps.isr.o
CC libkvmplat: cpu_native.common.o
CC libkvmplat: lcpu.x86_common.o
CC libkvmplat: tls.common.o
CC libkvmplat: bootinfo.common.o
AS libkvmplat: multiboot.x86.o
CC libkvmplat: multiboot.o
AS libkvmplat: pagetable64.o
CC libkvmplat: traps.o
AS libkvmplat: cpu_vectors_x86_64.o
CC libkvmplat: setup.o
CC libkvmplat: console.o
CC libkvmplat: lcpu.o
AS libkvmplat: lcpu_start.o
CC libkvmplat: intctrl.o
CC libkvmplat: tscclock.o
CC libkvmplat: time.o
CC libkvmplat: memory.o
CC libkvmplat: vga_console.o
CC libkvmplat: serial_console.o
CC libkvmplat: shutdown.o
CC libkvmplat: irq.o
CC libkvmplat: io.o
CC libkvmplat: lcpu.common.o
CC libkvmplat: memory.common.o
LDS libkvmplat: bootinfo.lds
LDS libkvmplat: link64.lds
LD libkvmplat.ld.o
OBJCOPY libkvmplat.o
CC libkvmpci: pci_bus.common.o
CC libkvmpci: pci_bus_x86.x86.o
LD libkvmpci.ld.o
OBJCOPY libkvmpci.o
CC libkvmvirtio: virtio_bus.o
CC libkvmvirtio: virtio_ring.o
CC libkvmvirtio: virtio_pci.o
LD libkvmvirtio.ld.o
OBJCOPY libkvmvirtio.o
CC libkvmvirtionet: virtio_net.o
LD libkvmvirtionet.ld.o
OBJCOPY libkvmvirtionet.o
CC libkvmvirtio9p: virtio_9p.o
LD libkvmvirtio9p.ld.o
OBJCOPY libkvmvirtio9p.o
CC mount9pfs: main.o
In file included from /home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:44,
from /home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:44,
from /home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:4:
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:83:42: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
83 | int accept(int s, struct sockaddr *addr, socklen_t *addrlen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:84:46: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
84 | int bind(int s, const struct sockaddr *name, socklen_t namelen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:86:47: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
86 | int getpeername(int s, struct sockaddr *name, socklen_t *namelen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:87:47: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
87 | int getsockname(int s, struct sockaddr *name, socklen_t *namelen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:88:61: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
88 | int getsockopt(int s, int level, int optname, void *optval, socklen_t *optlen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:90:16: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
90 | socklen_t optlen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:91:49: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
91 | int connect(int s, const struct sockaddr *name, socklen_t namelen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:95:37: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
95 | struct sockaddr *from, socklen_t *fromlen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:96:31: warning: ‘struct msghdr’ declared inside parameter list will not be visible outside of this definition or declaration
96 | ssize_t recvmsg(int s, struct msghdr *msg, int flags);
| ^~~~~~
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:98:37: warning: ‘struct msghdr’ declared inside parameter list will not be visible outside of this definition or declaration
98 | ssize_t sendmsg(int s, const struct msghdr *message, int flags);
| ^~~~~~
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:100:39: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
100 | const struct sockaddr *to, socklen_t tolen);
| ^~~~~~~~~
| locale_t
In file included from /home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:45,
from /home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:44,
from /home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:4:
/home/unikraft/hack-athens-2023/libs/lwip/include/netinet/in.h:31:23: error: field ‘imr_multiaddr’ has incomplete type
31 | struct in_addr imr_multiaddr;
| ^~~~~~~~~~~~~
/home/unikraft/hack-athens-2023/libs/lwip/include/netinet/in.h:32:23: error: field ‘imr_interface’ has incomplete type
32 | struct in_addr imr_interface;
| ^~~~~~~~~~~~~
/home/unikraft/hack-athens-2023/libs/lwip/include/netinet/in.h:33:23: error: field ‘imr_sourceaddr’ has incomplete type
33 | struct in_addr imr_sourceaddr;
| ^~~~~~~~~~~~~~
/home/unikraft/hack-athens-2023/libs/lwip/include/netinet/in.h:38:32: error: field ‘gsr_group’ has incomplete type
38 | struct sockaddr_storage gsr_group;
| ^~~~~~~~~
/home/unikraft/hack-athens-2023/libs/lwip/include/netinet/in.h:39:32: error: field ‘gsr_source’ has incomplete type
39 | struct sockaddr_storage gsr_source;
| ^~~~~~~~~~
In file included from /home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:44,
from /home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:4:
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:143:47: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
143 | int lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen);
| ^~~~~~~~~
| locale_t
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:144:51: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
144 | int lwip_bind(int s, const struct sockaddr *name, socklen_t namelen);
| ^~~~~~~~~
| locale_t
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:146:53: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
146 | int lwip_getpeername (int s, struct sockaddr *name, socklen_t *namelen);
| ^~~~~~~~~
| locale_t
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:147:53: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
147 | int lwip_getsockname (int s, struct sockaddr *name, socklen_t *namelen);
| ^~~~~~~~~
| locale_t
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:148:67: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
148 | int lwip_getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen);
| ^~~~~~~~~
| locale_t
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:149:73: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
149 | int lwip_setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen);
| ^~~~~~~~~
| locale_t
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:151:54: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
151 | int lwip_connect(int s, const struct sockaddr *name, socklen_t namelen);
| ^~~~~~~~~
| locale_t
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:157:30: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
157 | struct sockaddr *from, socklen_t *fromlen);
| ^~~~~~~~~
| locale_t
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:158:36: warning: ‘struct msghdr’ declared inside parameter list will not be visible outside of this definition or declaration
158 | ssize_t lwip_recvmsg(int s, struct msghdr *message, int flags);
| ^~~~~~
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:160:42: warning: ‘struct msghdr’ declared inside parameter list will not be visible outside of this definition or declaration
160 | ssize_t lwip_sendmsg(int s, const struct msghdr *message, int flags);
| ^~~~~~
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:162:32: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
162 | const struct sockaddr *to, socklen_t tolen);
| ^~~~~~~~~
| locale_t
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:175:64: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
175 | const char *lwip_inet_ntop(int af, const void *src, char *dst, socklen_t size);
| ^~~~~~~~~
| locale_t
In file included from /home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:4:
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:83:42: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
83 | int accept(int s, struct sockaddr *addr, socklen_t *addrlen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:84:46: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
84 | int bind(int s, const struct sockaddr *name, socklen_t namelen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:86:47: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
86 | int getpeername(int s, struct sockaddr *name, socklen_t *namelen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:87:47: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
87 | int getsockname(int s, struct sockaddr *name, socklen_t *namelen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:88:61: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
88 | int getsockopt(int s, int level, int optname, void *optval, socklen_t *optlen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:90:16: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
90 | socklen_t optlen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:91:49: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
91 | int connect(int s, const struct sockaddr *name, socklen_t namelen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:95:37: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
95 | struct sockaddr *from, socklen_t *fromlen);
| ^~~~~~~~~
| locale_t
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:96:31: warning: ‘struct msghdr’ declared inside parameter list will not be visible outside of this definition or declaration
96 | ssize_t recvmsg(int s, struct msghdr *msg, int flags);
| ^~~~~~
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:96:9: error: conflicting types for ‘recvmsg’; have ‘ssize_t(int, struct msghdr *, int)’ {aka ‘long int(int, struct msghdr *, int)’}
96 | ssize_t recvmsg(int s, struct msghdr *msg, int flags);
| ^~~~~~~
In file included from /home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:44,
from /home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:44,
from /home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:4:
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:96:9: note: previous declaration of ‘recvmsg’ with type ‘ssize_t(int, struct msghdr *, int)’ {aka ‘long int(int, struct msghdr *, int)’}
96 | ssize_t recvmsg(int s, struct msghdr *msg, int flags);
| ^~~~~~~
In file included from /home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:4:
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:98:37: warning: ‘struct msghdr’ declared inside parameter list will not be visible outside of this definition or declaration
98 | ssize_t sendmsg(int s, const struct msghdr *message, int flags);
| ^~~~~~
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:98:9: error: conflicting types for ‘sendmsg’; have ‘ssize_t(int, const struct msghdr *, int)’ {aka ‘long int(int, const struct msghdr *, int)’}
98 | ssize_t sendmsg(int s, const struct msghdr *message, int flags);
| ^~~~~~~
In file included from /home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/liblwip/origin/fork-lwip-UNIKRAFT-2_1_x/src/include/lwip/sockets.h:44,
from /home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:44,
from /home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:4:
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:98:9: note: previous declaration of ‘sendmsg’ with type ‘ssize_t(int, const struct msghdr *, int)’ {aka ‘long int(int, const struct msghdr *, int)’}
98 | ssize_t sendmsg(int s, const struct msghdr *message, int flags);
| ^~~~~~~
In file included from /home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:4:
/home/unikraft/hack-athens-2023/libs/lwip/include/sys/socket.h:100:39: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
100 | const struct sockaddr *to, socklen_t tolen);
| ^~~~~~~~~
| locale_t
In file included from /home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:5:
/home/unikraft/hack-athens-2023/libs/lwip/include/arpa/inet.h:7:59: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
7 | const char *inet_ntop(int af, const void src, char dst, socklen_t size);
| ^~~~~~~~~
| locale_t
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c: In function ‘main’:
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:56:24: error: storage size of ‘serv_addr’ isn’t known
56 | struct sockaddr_in serv_addr;
| ^~~~~~~~~
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:66:24: error: ‘AF_INET’ undeclared (first use in this function)
66 | listen_fd = socket(AF_INET, SOCK_STREAM, 0);
| ^~~~~~~
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:66:24: note: each undeclared identifier is reported only once for each function it appears in
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:66:33: error: ‘SOCK_STREAM’ undeclared (first use in this function)
66 | listen_fd = socket(AF_INET, SOCK_STREAM, 0);
| ^~~~~~~~~~~
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:73:9: warning: implicit declaration of function ‘setsockopt’ [-Wimplicit-function-declaration]
73 | if (setsockopt(listen_fd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(int)) == -1) {
| ^~~~~~~~~~
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:73:31: error: ‘SOL_SOCKET’ undeclared (first use in this function)
73 | if (setsockopt(listen_fd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(int)) == -1) {
| ^~~~~~~~~~
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:73:43: error: ‘SO_REUSEADDR’ undeclared (first use in this function); did you mean ‘SO_REUSE’?
73 | if (setsockopt(listen_fd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(int)) == -1) {
| ^~~~~~~~~~~~
| SO_REUSE
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:80:33: error: ‘INADDR_ANY’ undeclared (first use in this function); did you mean ‘IPADDR_ANY’?
80 | serv_addr.sin_addr.s_addr = INADDR_ANY;
| ^~~~~~~~~~
| IPADDR_ANY
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:82:15: warning: implicit declaration of function ‘bind’ [-Wimplicit-function-declaration]
82 | int err = bind(listen_fd, (struct sockaddr )&serv_addr, sizeof(serv_addr));
| ^~~~
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:88:24: error: storage size of ‘client_addr’ isn’t known
88 | struct sockaddr_in client_addr;
| ^~~~~~~~~~~
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:92:5: error: unknown type name ‘socklen_t’; did you mean ‘locale_t’?
92 | socklen_t socket_len = sizeof(struct sockaddr_in);
| ^~~~~~~~~
| locale_t
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:92:35: error: invalid application of ‘sizeof’ to incomplete type ‘struct sockaddr_in’
92 | socklen_t socket_len = sizeof(struct sockaddr_in);
| ^~~~~~
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:96:15: warning: implicit declaration of function ‘accept’; did you mean ‘access’? [-Wimplicit-function-declaration]
96 | conn_fd = accept(listen_fd, (struct sockaddr)&client_addr, &socket_len);
| ^~~~~~
| access
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:88:24: warning: unused variable ‘client_addr’ [-Wunused-variable]
88 | struct sockaddr_in client_addr;
| ^~~~~~~~~~~
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:56:24: warning: unused variable ‘serv_addr’ [-Wunused-variable]
56 | struct sockaddr_in serv_addr;
| ^~~~~~~~~
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:53:14: warning: unused parameter ‘argc’ [-Wunused-parameter]
53 | int main(int argc, char argv[])
| ~~~~^~~~
/home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/main.c:53:26: warning: unused parameter ‘argv’ [-Wunused-parameter]
53 | int main(int argc, char argv[])
| ~~~~~~^~~~~~
make[3]: *** [/home/unikraft/hack-athens-2023/unikraft/support/build/Makefile.build:27: /home/unikraft/docs/content/en/community/hackathons/sessions/baby-steps/work/03-mount-9pfs/build/mount9pfs/main.o] Error 1
make[2]: *** [Makefile:1023: sub-make] Error 2
make[1]: *** [Makefile:32: _all] Error 2
make[1]: Leaving directory '/home/unikraft/hack-athens-2023/unikraft'
make: *** [Makefile:6: all] Error 2