>>> uclibc 1.0.44 Extracting
xzcat /home/buildroot/autobuild/instance-3/dl/uclibc/uClibc-ng-1.0.44.tar.xz | tar --strip-components=1 -C /home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44   -xf -
>>> uclibc 1.0.44 Patching

Applying 0001-aarch64-add-hwcap-header-file.patch using patch: 
patching file include/sys/auxv.h
patching file libc/sysdeps/linux/aarch64/bits/hwcap.h
patching file libc/sysdeps/linux/common/bits/hwcap.h

Applying 0002-fcntl.h-declare-f_owner_ex-for-all-architectures.patch using patch: 
patching file include/fcntl.h
patching file libc/sysdeps/linux/aarch64/bits/fcntl.h
Using /home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44/.config as base
#
# merged configuration written to /home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44/.config (needs make)
#
make[1]: Entering directory '/home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44'
  MKDIR include/config
  MKDIR include/generated
  HOSTCC-o extra/config/conf.o
  GEN extra/config/zconf.tab.c
  GEN extra/config/zconf.lex.c
  GEN extra/config/zconf.hash.c
  HOSTCC-o extra/config/zconf.tab.o
  HOSTCC extra/config/conf
#
# configuration written to /home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44/.config
#
make[1]: Leaving directory '/home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44'
make[1]: Entering directory '/home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44'
#
# configuration written to /home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44/.config
#
make[1]: Leaving directory '/home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44'
>>> uclibc 1.0.44 Configuring
>>> uclibc 1.0.44 Building
/usr/bin/make -j4 -C /home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44 ARCH="riscv64" CROSS_COMPILE="/home/buildroot/autobuild/instance-3/output-1/host/bin/riscv64-buildroot-linux-uclibc-" UCLIBC_EXTRA_CFLAGS=" -g2 -fno-lto" HOSTCC="/home/buildroot/autobuild/instance-3/output-1/host/bin/ccache /usr/bin/gcc" headers
make[1]: Entering directory '/home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44'
  MKDIR include/bits
  GEN include/bits/uClibc_config.h
  GEN include/bits/sysnum.h
  LN include/fpu_control.h
  LN include/jmpbuf-offsets.h
  LN include/jmpbuf-unwind.h
  LN include/dl-osinfo.h
  LN include/not-cancel.h
  LN include/bits/atomic.h
  LN include/bits/byteswap-16.h
  LN include/bits/byteswap-common.h
  LN include/bits/byteswap.h
  LN include/bits/cmathcalls.h
  LN include/bits/confname.h
  LN include/bits/dlfcn.h
  LN include/bits/elfclass.h
  LN include/bits/environments.h
  LN include/bits/epoll.h
  LN include/bits/errno.h
  LN include/bits/eventfd.h
  LN include/bits/fenvinline.h
  LN include/bits/getopt.h
  LN include/bits/getopt_int.h
  LN include/bits/huge_val.h
  LN include/bits/huge_valf.h
  LN include/bits/huge_vall.h
  LN include/bits/hwcap.h
  LN include/bits/in.h
  LN include/bits/inf.h
  LN include/bits/initspin.h
  LN include/bits/inotify.h
  LN include/bits/ioctl-types.h
  LN include/bits/ioctls.h
  LN include/bits/ipc.h
  LN include/bits/kernel-features.h
  LN include/bits/kernel_sigaction.h
  LN include/bits/local_lim.h
  LN include/bits/locale.h
  LN include/bits/mathcalls.h
  LN include/bits/mathdef.h
  LN include/bits/mathinline.h
  LN include/bits/mman-common.h
  LN include/bits/mman-linux.h
  LN include/bits/mman-shared.h
  LN include/bits/mqueue.h
  LN include/bits/msq.h
  LN include/bits/nan.h
  LN include/bits/netdb.h
  LN include/bits/poll.h
  LN include/bits/posix1_lim.h
  LN include/bits/posix2_lim.h
  LN include/bits/posix_opt.h
  LN include/bits/resource.h
  LN include/bits/sched.h
  LN include/bits/select.h
  LN include/bits/sem.h
  LN include/bits/sigaction.h
  LN include/bits/sigcontextinfo.h
  LN include/bits/siginfo.h
  LN include/bits/signalfd.h
  LN include/bits/signum.h
  LN include/bits/sigset.h
  LN include/bits/sigstack.h
  LN include/bits/sigthread.h
  LN include/bits/sockaddr.h
  LN include/bits/socket.h
  LN include/bits/socket_type.h
  LN include/bits/statvfs.h
  LN include/bits/statx.h
  LN include/bits/stdio.h
  LN include/bits/stdio_lim.h
  LN include/bits/syscalls-common.h
  LN include/bits/termios.h
  LN include/bits/time.h
  LN include/bits/timerfd.h
  LN include/bits/types.h
  LN include/bits/typesizes.h
  LN include/bits/uClibc_alloc.h
  LN include/bits/uClibc_charclass.h
  LN include/bits/uClibc_clk_tck.h
  LN include/bits/uClibc_ctype.h
  LN include/bits/uClibc_fpmax.h
  LN include/bits/uClibc_local_lim.h
  LN include/bits/uClibc_locale.h
  LN include/bits/uClibc_mutex.h
  LN include/bits/uClibc_posix_opt.h
  LN include/bits/uClibc_pthread.h
  LN include/bits/uClibc_stdio.h
  LN include/bits/uClibc_touplow.h
  LN include/bits/uClibc_uintmaxtostr.h
  LN include/bits/uClibc_uwchar.h
  LN include/bits/uClibc_va_copy.h
  LN include/bits/uio.h
  LN include/bits/ustat.h
  LN include/bits/utmp.h
  LN include/bits/utmpx.h
  LN include/bits/utsname.h
  LN include/bits/waitflags.h
  LN include/bits/waitstatus.h
  LN include/bits/wchar.h
  LN include/bits/xopen_lim.h
  LN include/bits/endian.h
  LN include/bits/fcntl.h
  LN include/bits/fenv.h
  LN include/bits/kernel_types.h
  LN include/bits/mman.h
  LN include/bits/setjmp.h
  LN include/bits/shm.h
  LN include/bits/sigcontext.h
  LN include/bits/stackinfo.h
  LN include/bits/syscalls.h
  LN include/bits/uClibc_arch_features.h
  LN include/bits/uClibc_page.h
  LN include/bits/wordsize.h
  LN include/sys/acct.h
  LN include/sys/epoll.h
  LN include/sys/eventfd.h
  LN include/sys/fanotify.h
  LN include/sys/inotify.h
  LN include/sys/prctl.h
  LN include/sys/ptrace.h
  LN include/sys/random.h
  LN include/sys/signalfd.h
  LN include/sys/timerfd.h
  LN include/sys/asm.h
  LN include/sys/procfs.h
  LN include/sys/ucontext.h
  LN include/sys/user.h
  LN include/bits/align64bit.h
  LN include/bits/dirent.h
  LN include/bits/kernel_stat.h
  LN include/bits/stat.h
  LN include/bits/statfs.h
  MKDIR libm/riscv64
  MKDIR libubacktrace/riscv64
  MKDIR libc/string/riscv64
make[1]: Leaving directory '/home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44'
/usr/bin/make -j4 -C /home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44 ARCH="riscv64" CROSS_COMPILE="/home/buildroot/autobuild/instance-3/output-1/host/bin/riscv64-buildroot-linux-uclibc-" UCLIBC_EXTRA_CFLAGS=" -g2 -fno-lto" HOSTCC="/home/buildroot/autobuild/instance-3/output-1/host/bin/ccache /usr/bin/gcc"
make[1]: Entering directory '/home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44'
  CC libc/sysdeps/linux/riscv64/__syscall_error.os
  CC libc/sysdeps/linux/riscv64/cache.os
In file included from ./include/sys/syscall.h:33,
                 from libc/sysdeps/linux/riscv64/cache.c:20:
libc/sysdeps/linux/riscv64/cache.c: In function '__riscv_flush_icache_syscall':
./include/bits/syscalls-common.h:34:63: error: '__NR_riscv_flush_icache' undeclared (first use in this function)
   34 | # define INLINE_SYSCALL(name, nr, args...) INLINE_SYSCALL_NCS(__NR_##name, nr, args)
      |                                                               ^~~~~
./include/bits/syscalls.h:18:9: note: in definition of macro 'INTERNAL_SYSCALL_NCS'
   18 |  _a7 = (name);     \
      |         ^~~~
./include/bits/syscalls-common.h:34:44: note: in expansion of macro 'INLINE_SYSCALL_NCS'
   34 | # define INLINE_SYSCALL(name, nr, args...) INLINE_SYSCALL_NCS(__NR_##name, nr, args)
      |                                            ^~~~~~~~~~~~~~~~~~
libc/sysdeps/linux/riscv64/cache.c:27:10: note: in expansion of macro 'INLINE_SYSCALL'
   27 |   return INLINE_SYSCALL (riscv_flush_icache, 3, start, end, flags);
      |          ^~~~~~~~~~~~~~
./include/bits/syscalls-common.h:34:63: note: each undeclared identifier is reported only once for each function it appears in
   34 | # define INLINE_SYSCALL(name, nr, args...) INLINE_SYSCALL_NCS(__NR_##name, nr, args)
      |                                                               ^~~~~
./include/bits/syscalls.h:18:9: note: in definition of macro 'INTERNAL_SYSCALL_NCS'
   18 |  _a7 = (name);     \
      |         ^~~~
./include/bits/syscalls-common.h:34:44: note: in expansion of macro 'INLINE_SYSCALL_NCS'
   34 | # define INLINE_SYSCALL(name, nr, args...) INLINE_SYSCALL_NCS(__NR_##name, nr, args)
      |                                            ^~~~~~~~~~~~~~~~~~
libc/sysdeps/linux/riscv64/cache.c:27:10: note: in expansion of macro 'INLINE_SYSCALL'
   27 |   return INLINE_SYSCALL (riscv_flush_icache, 3, start, end, flags);
      |          ^~~~~~~~~~~~~~
make[1]: *** [Makerules:369: libc/sysdeps/linux/riscv64/cache.os] Error 1
make[1]: Leaving directory '/home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44'
make: *** [package/pkg-generic.mk:283: /home/buildroot/autobuild/instance-3/output-1/build/uclibc-1.0.44/.stamp_built] Error 2
make: Leaving directory '/home/buildroot/autobuild/instance-3/buildroot'