Building middleware fails on Ubuntu 22.04 amd64 Docker container

[cryptic-quasar]

Hi, for building the SDK, I follow the steps provided in https://milkv.io/docs/duo/getting-started/buildroot-sdk. I am building for milkv-duos-glibc-arm64-emmc using the Ubuntu 22.04.5 Docker container. Therefore upon running ./build.sh lunch, I choose the 4th option.

The following error happens no matter if I run the build in the one-click mode or manually. I appreciate any input.

Run build_middleware() function
make: '/opt/duo-buildroot-sdk-v2/install/soc_sg2000_milkv_duos_glibc_arm64_emmc/rootfs' is up to date.
/opt/duo-buildroot-sdk-v2/cvi_mpi /opt/duo-buildroot-sdk-v2/build
make[1]: Entering directory '/opt/duo-buildroot-sdk-v2/cvi_mpi'
make[1]: Entering directory '/opt/duo-buildroot-sdk-v2/cvi_mpi/3rdparty'
make[1]: Entering directory '/opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp'
#################################################
#                                               #
#   Compiling '3rdparty libs' Configs as below  #
#                                               #
#################################################
make[2]: Entering directory '/opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp/common'
make[2]: Entering directory '/opt/duo-buildroot-sdk-v2/cvi_mpi/3rdparty/inih'
make[1]: Leaving directory '/opt/duo-buildroot-sdk-v2/cvi_mpi'
[aarch64-linux-gnu-gcc] sensor_list.o
make[2]: Leaving directory '/opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp/common'
pushd sensor/cv181x && \
make all && \
popd;
/opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp/sensor/cv181x /opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp
make[2]: Entering directory '/opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp/sensor/cv182x'
pushd  gcore_gc2083 && make all && popd
pushd  gcore_gc4653 && make all && popd
pushd  ov_ov5647 && make all && popd
#################################################
/opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp/sensor/cv181x/gcore_gc2083 /opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp/sensor/cv181x
/opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp/sensor/cv181x/gcore_gc4653 /opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp/sensor/cv181x
/opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp/sensor/cv181x/ov_ov5647 /opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp/sensor/cv181x
#
make[3]: Entering directory '/opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp/sensor/cv182x/gcore_gc2083'
make[3]: Entering directory '/opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp/sensor/cv182x/gcore_gc4653'
make[3]: Entering directory '/opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp/sensor/cv182x'
make[3]: Entering directory '/opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp/sensor/cv182x/ov_ov5647'
# Compiling 'component libs' Configs as below...
# SENSOR_LIST=gcore_gc2083 gcore_gc4653 ov_ov5647
#
#################################################
make[2]: *** write jobserver: Bad file descriptor.  Stop.
make[2]: *** Waiting for unfinished jobs....
[aarch64-linux-gnu-gcc] ini.o
aarch64-linux-gnu-gcc -O3 -std=gnu11 -g -Wall -Wextra -Werror -fPIC -ffunction-sections -fdata-sections -D__CV181X__ -DOS_IS_LINUX   -c -o gcore_gc2083/gc2083_cmos.o gcore_gc2083/gc2083_cmos.c
aarch64-linux-gnu-gcc -O3 -std=gnu11 -g -Wall -Wextra -Werror -fPIC -ffunction-sections -fdata-sections -D__CV181X__ -DOS_IS_LINUX   -c -o gcore_gc2083/gc2083_sensor_ctl.o gcore_gc2083/gc2083_sensor_ctl.c
aarch64-linux-gnu-gcc -O3 -std=gnu11 -g -Wall -Wextra -Werror -fPIC -ffunction-sections -fdata-sections -D__CV181X__ -DOS_IS_LINUX   -c -o gcore_gc4653/gc4653_sensor_ctl.o gcore_gc4653/gc4653_sensor_ctl.c
aarch64-linux-gnu-gcc -O3 -std=gnu11 -g -Wall -Wextra -Werror -fPIC -ffunction-sections -fdata-sections -D__CV181X__ -DOS_IS_LINUX   -c -o gcore_gc4653/gc4653_cmos.o gcore_gc4653/gc4653_cmos.c
aarch64-linux-gnu-gcc -O3 -std=gnu11 -g -Wall -Wextra -Werror -fPIC -ffunction-sections -fdata-sections -D__CV181X__ -DOS_IS_LINUX   -c -o ov_ov5647/ov5647_sensor_ctl.o ov_ov5647/ov5647_sensor_ctl.c
aarch64-linux-gnu-gcc -O3 -std=gnu11 -g -Wall -Wextra -Werror -fPIC -ffunction-sections -fdata-sections -D__CV181X__ -DOS_IS_LINUX   -c -o ov_ov5647/ov5647_cmos.o ov_ov5647/ov5647_cmos.c
[LINK][aarch64-linux-gnu-ar] libini.a
make[2]: *** write jobserver: Bad file descriptor.  Stop.
make[2]: *** Waiting for unfinished jobs....
[LINK][aarch64-linux-gnu-ld] libini.so
make[2]: *** write jobserver: Bad file descriptor.  Stop.
make[1]: *** [Makefile:8: all] Error 1
make[1]: Leaving directory '/opt/duo-buildroot-sdk-v2/cvi_mpi/3rdparty'
make: *** [Makefile:20: 3rdparty] Error 2
make: *** Waiting for unfinished jobs....
aarch64-linux-gnu-ld: cannot find gcore_gc2083/gc2083_cmos.o: No such file or directory
aarch64-linux-gnu-ld: cannot find gcore_gc2083/gc2083_sensor_ctl.o: No such file or directory
aarch64-linux-gnu-ld: cannot find gcore_gc4653/gc4653_sensor_ctl.o: No such file or directory
aarch64-linux-gnu-ld: cannot find gcore_gc4653/gc4653_cmos.o: No such file or directory
aarch64-linux-gnu-ld: cannot find ov_ov5647/ov5647_sensor_ctl.o: No such file or directory
aarch64-linux-gnu-ld: cannot find ov_ov5647/ov5647_cmos.o: No such file or directory
gcore_gc2083/gc2083_sensor_ctl.c:10:10: fatal error: linux/cvi_comm_video.h: No such file or directory
 #include <linux/cvi_comm_video.h>
          ^~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
ov_ov5647/ov5647_cmos.c:8:10: fatal error: linux/cvi_type.h: No such file or directory
 #include <linux/cvi_type.h>
          ^~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [Makefile_full:28: /opt/duo-buildroot-sdk-v2/cvi_mpi/lib/libsns_full.so] Error 1
make[3]: *** write jobserver: Bad file descriptor.  Stop.
make[3]: *** Waiting for unfinished jobs....
make[3]: *** [<builtin>: gcore_gc2083/gc2083_sensor_ctl.o] Error 1
make[3]: *** write jobserver: Bad file descriptor.  Stop.
make[2]: *** [Makefile:335: all_sensor] Error 1
make[2]: *** write jobserver: Bad file descriptor.  Stop.
ov_ov5647/ov5647_sensor_ctl.c:11:10: fatal error: linux/cvi_comm_video.h: No such file or directory
 #include <linux/cvi_comm_video.h>
          ^~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
gcore_gc4653/gc4653_sensor_ctl.c:10:10: fatal error: linux/cvi_comm_video.h: No such file or directory
 #include <linux/cvi_comm_video.h>
          ^~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[1]: *** [Makefile:11: all] Error 2
make[1]: Leaving directory '/opt/duo-buildroot-sdk-v2/cvi_mpi/component/isp'
gcore_gc2083/gc2083_cmos.c:7:10: fatal error: linux/cvi_type.h: No such file or directory
 #include <linux/cvi_type.h>
          ^~~~~~~~~~~~~~~~~~
compilation terminated.
make: *** [Makefile:35: component] Error 2
 build middleware failed !!
/opt/duo-buildroot-sdk-v2/build
Error: Build board milkv-duos-glibc-arm64-emmc failed!
root@74017d9151ee:/opt/duo-buildroot-sdk-v2# gcore_gc4653/gc4653_cmos.c:7:10: fatal error: linux/cvi_type.h: No such file or directory
 #include <linux/cvi_type.h>
          ^~~~~~~~~~~~~~~~~~
compilation terminated.
[aarch64-linux-gnu-gcc] ov5647_sensor_ctl.o
make[3]: *** write jobserver: Bad file descriptor.  Stop.
make[3]: *** Waiting for unfinished jobs....
[aarch64-linux-gnu-gcc] gc4653_sensor_ctl.o
make[3]: *** write jobserver: Bad file descriptor.  Stop.
make[3]: *** Waiting for unfinished jobs....
[aarch64-linux-gnu-gcc] gc2083_sensor_ctl.o
make[3]: *** write jobserver: Bad file descriptor.  Stop.
make[3]: *** Waiting for unfinished jobs....
[aarch64-linux-gnu-gcc] ov5647_cmos.o
make[3]: *** write jobserver: Bad file descriptor.  Stop.
[aarch64-linux-gnu-gcc] gc2083_cmos.o
make[3]: *** write jobserver: Bad file descriptor.  Stop.
[aarch64-linux-gnu-gcc] gc4653_cmos.o
make[3]: *** write jobserver: Bad file descriptor.  Stop.

[itssead]

Hi, here is a quick fix for that problem. In the file build/envsetup_milkv.sh you have to change the make all '-j [jobs]' parameter to -j1. The parallel makefile processing might be selectively disabled using the .NOTPARALLEL feature, but I am not a expert in complex/parallel makefiles :)

build/envsetup_milkv.sh:
234  # make all -j$(nproc)
235  make all -j1

I also had to modify fatbuffers/CMakeLists.txt:219 (CMAKE_CXX_FLAGS). I replaced '-std=c++0x' with '-std=c++20' and got the build process finish successfully ('gnimage for milkv-duo256m-musl-riscv64-sd success!') . My building host OS is arch linux. Generated output image was not tested yet.

flatbuffers/CMakeLists.txt:
219  # "${CMAKE_CXX_FLAGS} -std=c++0x")
220  ${CMAKE_CXX_FLAGS} -std=c++20")