Compiled on RPI3B with 5.10.77-piCore-v8

Compile Flags:
CFLAGS='-march=armv8-a+crc -mtune=cortex-a72 -Os -pipe -flto -fuse-linker-plugin -fno-exceptions'
CXXFLAGS='-march=armv8-a+crc -mtune=cortex-a72 -Os -pipe -flto -fuse-linker-plugin -fno-exceptions -fno-rtti'
LDFLAGS='-Wl,-O1'
export CFLAGS CXXFLAGS LDFLAGS

Dependencies:
autoconf
automake
compiletc
libtool

Commands:

# fix lto
P=/usr/local/libexec/gcc/aarch64-unknown-linux-gnu/10.2.0/liblto_plugin.so.0.0.0
sudo mkdir -p /usr/local/lib/bfd-plugins
sudo ln -sfv $P /usr/local/lib/bfd-plugins/liblto_plugin.so

tar -xf v0.13.1.tar.gz

cd userspace-rcu-0.13.1

./bootstrap

./configure --prefix=/usr/local

time make -j4
real    1m 50.24s
user    3m 57.16s
sys     1m 6.28s

make DESTDIR=/tmp/packing-urcu install

cd /tmp/packing-urcu

llvm-strip --strip-unneeded ./usr/local/lib/*.a
llvm-strip --strip-unneeded ./usr/local/lib/*.8.0.0

===============================================================================

Userspace-RCU 0.13.1

Features
  Target architecture:                aarch64
  SMP support:                        yes
  Thread Local Storage (TLS):         compiler TLS
  clock_gettime():                    yes
  Require membarrier:                 no
  Internal debugging:                 no
  Lock-free HT iterator debugging:    no
  Multi-flavor support:               yes

Install directories
  Binaries:                           /usr/local/bin
  Libraries:                          /usr/local/lib