iperf交叉编译

./configure --host=arm-linux-gnueabihf CC=arm-linux-gnueabihf-gcc CFLAGS=-static CXX=arm-linux-gnueabihf-g++ CXXFLAGS=-static

root@ubuntu:/home/ubuntu/riscv/iperf-3.1.3# riscv64-linux-gnu-gcc   -v
Using built-in specs.
COLLECT_GCC=riscv64-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc-cross/riscv64-linux-gnu/7/lto-wrapper
Target: riscv64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 7.5.0-3ubuntu1~18.04' 
--with-bugurl=file:///usr/share/doc/gcc-7/README.Bugs --enable-languages=c,c++,d,fortran,objc,obj-c++ 
--prefix=/usr --with-gcc-major-version-only --program-suffix=-7 
--enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext 
--enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ 
--enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new 
--enable-gnu-unique-object --disable-libitm --disable-libsanitizer --disable-libquadmath --disable-libquadmath-support 
--enable-plugin --with-system-zlib --enable-multiarch --disable-werror --disable-multilib --with-arch=rv64imafdc
 --with-abi=lp64d --enable-checking=release --build=aarch64-linux-gnu --host=aarch64-linux-gnu --target=riscv64-linux-gnu --program-prefix=riscv64-linux-gnu- --includedir=/usr/riscv64-linux-gnu/include
Thread model: posix
gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04) 

root@ubuntu:/home/ubuntu/riscv/iperf-3.1.3# ./configure --prefix=$(pwd)/install  --host=aarch64-linux-gnu CC=riscv64-linux-gnu-gcc CFLAGS=-static
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for aarch64-linux-gnu-strip... aarch64-linux-gnu-strip
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking build system type... aarch64-unknown-linux-gnu
checking host system type... aarch64-unknown-linux-gnu
checking for aarch64-linux-gnu-gcc... riscv64-linux-gnu-gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... yes
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether riscv64-linux-gnu-gcc accepts -g... yes
checking for riscv64-linux-gnu-gcc option to accept ISO C89... none needed
checking whether riscv64-linux-gnu-gcc understands -c and -o together... yes
checking for style of include used by make... GNU
checking dependency style of riscv64-linux-gnu-gcc... gcc3
checking for aarch64-linux-gnu-ranlib... aarch64-linux-gnu-ranlib
checking whether ln -s works... yes
checking how to print strings... printf
checking for a sed that does not truncate output... /bin/sed
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for fgrep... /bin/grep -F

make -j96

make install

root@ubuntu:/home/ubuntu/riscv/iperf-3.1.3# ls install/
bin  include  lib  share
root@ubuntu:/home/ubuntu/riscv/iperf-3.1.3# ls install/bin/
iperf3
root@ubuntu:/home/ubuntu/riscv/iperf-3.1.3# ls install/lib/
libiperf.a  libiperf.la
root@ubuntu:/home/ubuntu/riscv/iperf-3.1.3# make -j96

仍然有库依赖

[root@centos7 ~]# riscv64-unknown-elf-objdump -x  ./usr/bin/iperf3 | grep need
[root@centos7 ~]# riscv64-unknown-elf-objdump -x  ./usr/bin/iperf3 | grep -i  need
  NEEDED               libiperf.so.0
  NEEDED               libm.so.6
  NEEDED               libc.so.6
  VERNEED              0x0000000000010998
  VERNEEDNUM           0x0000000000000001
[root@centos7 ~]# find ./ -name libiperf.so.0
./usr/lib/libiperf.so.0
[root@centos7 ~]# find ./ -name libm.so.6
./lib/libm.so.6
[root@centos7 ~]# find ./ -name libc.so.6
./lib/libc.so.6
[root@centos7 ~]# riscv64-unknown-elf-objdump -x  ./usr/bin/t | grep -i  need
tail        telnet      tftp        timing_o    top         traceroute  tty         
tee         test        time        tlb         tr          truncate    
[root@centos7 ~]# riscv64-unknown-elf-objdump -x  ./usr/sbin/tcpdump | grep -i  need
  NEEDED               libc.so.6
  NEEDED               ld-linux-riscv64-lp64d.so.1
  VERNEED              0x0000000000001ba8
  VERNEEDNUM           0x0000000000000002
[root@centos7 ~]# 

./configure --prefix=$(pwd)/install  --host=aarch64-linux-gnu CC=riscv64-linux-gnu-gcc CFLAGS=-static  --enable-static LDFLAGS=-static --disable-shared

root@ubuntu:/home/ubuntu/riscv/iperf-3.1.3#  riscv64-linux-gnu-objdump -x install/bin/iperf3  | grep -i need
  NEEDED               libm.so.6
  NEEDED               libc.so.6
  NEEDED               ld-linux-riscv64-lp64d.so.1
  VERNEED              0x00000000000113b8
  VERNEEDNUM           0x0000000000000003