Crosscompile for Openwrt 19.07 ramips/mt7620 processor #75

Drus566 · 2022-09-29T04:16:47Z

Drus566
Sep 29, 2022

Hello, cool library!
I'm new to c++ and don't know СMake very well, so I'm asking for help. Tell me or direct me how I can compile this library with all dependencies on open wrt 19.07 on a ramips/7620 processor. I managed to compile and run "Hello World" on this controller.
Thanks in advance!

Answered by Drus566

Oct 10, 2022

In general, I made this makefile, and fixed a couple of errors that are googled during the compilation process, and got my build)

include $(TOPDIR)/rules.mk
 
PKG_NAME:=ocppclient
PKG_VERSION:=06.10.2022
PKG_RELEASE=1
 
PKG_LICENSE:=GPL-2.0
PKG_LICENSE_FILES:=
 
PKG_MAINTAINER:=drus <[email protected]>
 
include $(INCLUDE_DIR)/package.mk
include $(INCLUDE_DIR)/cmake.mk #If usingcmake, You must add this line
 
define Package/ocppclient
	SECTION:=net
	CATEGORY:=ocppclient
	DEPENDS:=+kmod-tun +libpthread +librt +libubox +libuci +libstdcpp +libsqlite3 #Add the required dependency library, if you don’t add it, it will compile and report an error
	TITLE:=OCPPClient
endef

define Package/o…

View full answer

c-jimenez · 2022-09-30T19:18:03Z

c-jimenez
Sep 30, 2022
Maintainer

Hi,
To be able to compile Open-OCPP first you'll need to have a C++17 compliant cross compiler with the pre-requisites libraries and tools listed here https://github.com/c-jimenez/open-ocpp#pre-requisites.
Usually the cross compilers comes with some bash script to setup the environment :
/my_sdk_path/environment-setup-armv7vet2hf-vfpv4d16-linux-gnueabi
/my_sdk_path/sysroots/x86_64-linux/environment-setup.d/cmake.sh

Once you have called them using the "source" command, you just have to call the : make command.

8 replies

Drus566 Oct 3, 2022
Author

And what about third party libraries in 3rdParty directory. Will they also need to be recompiled for the target platform?

c-jimenez Oct 3, 2022
Maintainer

Normaly you should not have to rewrite anything in the CMake files, even under the 3rd party folder => all the source tree should compile "out of the box" once you have configured your cross compiler (see previous reply).
I tried it with a Yocto generated cross arm compiler with success and someone did succeed to build it for raspberry pie without modifying the CMake files.

Drus566 Oct 4, 2022
Author

Greetings!)
In general, I prepared the toolchain, the simak command worked, but with the make, there were problems. Can you tell me where to look? Perhaps there is a problem with the sqlite3? I compiled sqlite3 and openssl from source and added to the toolchain.

[  2%] Built target helpers
[  2%] Built target GENHDR
[ 25%] Built target websockets
[ 26%] Built target ws
[ 27%] Built target database
[ 27%] Building CXX object src/tools/log/CMakeFiles/log.dir/LogDatabase.cpp.o
/home/d1/IRZ/Crosscompile/OCPPClient/src/tools/log/LogDatabase.cpp: In member function 'void ocpp::log::LogDatabase::log(time_t, unsigned int, const string&, const string&)':
/home/d1/IRZ/Crosscompile/OCPPClient/src/tools/log/LogDatabase.cpp:46:42: error: call of overloaded 'bind(int, time_t&)' is ambiguous
         m_insert_query->bind(0, timestamp);
                                          ^
In file included from /home/d1/IRZ/Crosscompile/OCPPClient/src/tools/log/LogDatabase.h:22:0,
                 from /home/d1/IRZ/Crosscompile/OCPPClient/src/tools/log/LogDatabase.cpp:19:
/home/d1/IRZ/Crosscompile/OCPPClient/src/tools/database/./Database.h:107:14: note: candidate: bool ocpp::database::Database::Query::bind(int, bool)
         bool bind(int number, bool value);
              ^~~~
/home/d1/IRZ/Crosscompile/OCPPClient/src/tools/database/./Database.h:115:14: note: candidate: bool ocpp::database::Database::Query::bind(int, double)
         bool bind(int number, double value);
              ^~~~
/home/d1/IRZ/Crosscompile/OCPPClient/src/tools/database/./Database.h:123:14: note: candidate: bool ocpp::database::Database::Query::bind(int, int32_t)
         bool bind(int number, int32_t value);
              ^~~~
/home/d1/IRZ/Crosscompile/OCPPClient/src/tools/database/./Database.h:131:14: note: candidate: bool ocpp::database::Database::Query::bind(int, uint32_t)
         bool bind(int number, uint32_t value);
              ^~~~
/home/d1/IRZ/Crosscompile/OCPPClient/src/tools/database/./Database.h:139:14: note: candidate: bool ocpp::database::Database::Query::bind(int, int64_t)
         bool bind(int number, int64_t value);
              ^~~~
/home/d1/IRZ/Crosscompile/OCPPClient/src/tools/database/./Database.h:147:14: note: candidate: bool ocpp::database::Database::Query::bind(int, uint64_t)
         bool bind(int number, uint64_t value);
              ^~~~
make[2]: *** [src/tools/log/CMakeFiles/log.dir/build.make:63: src/tools/log/CMakeFiles/log.dir/LogDatabase.cpp.o] Ошибка 1
make[1]: *** [CMakeFiles/Makefile2:3328: src/tools/log/CMakeFiles/log.dir/all] Ошибка 2
make: *** [Makefile:163: all] Ошибка 2

c-jimenez Oct 5, 2022
Maintainer

Hi,
You must have a 32bits compiler. This issue has already been fixed for the raspberry build but it is still in the "develop" branch (PR#70).
Please use this branch for now. I will try to take some time to merge it and to create a release by the end of the week.

Drus566 Oct 6, 2022
Author

I fixed this error by explicitly casting to (int64_t) and there was also a misunderstanding of <filesystem> , I fixed it by replacing <filesystem> with <experimental/filesystem> and also std::filesystem with std::experimental::filesystem but then an error popped up...

[ 53%] Built target chargepoint
Scanning dependencies of target open-ocpp-dynamic
[ 53%] Building CXX object CMakeFiles/open-ocpp-dynamic.dir/src/version.cpp.o
[ 54%] Linking CXX shared library ../bin/native/libopen-ocpp.so
/home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/bin/../lib/gcc/mipsel-openwrt-linux-musl/7.5.0/../../../../mipsel-openwrt-linux-musl/bin/ld: /home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/usr/lib/libsqlite3.so:(.sdata+0x0): multiple definition of `__dso_handle'; /home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/bin/../lib/gcc/mipsel-openwrt-linux-musl/7.5.0/crtbeginS.o:(.sdata+0x0): first defined here
/home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/bin/../lib/gcc/mipsel-openwrt-linux-musl/7.5.0/../../../../mipsel-openwrt-linux-musl/bin/ld: /home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/usr/lib/libsqlite3.so: in function `_init':
/builder/shared-workdir/build/build_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/musl-1.1.24/crt/mips/crti.s:8: multiple definition of `_init'; /home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/bin/../lib/gcc/mipsel-openwrt-linux-musl/7.5.0/../../../../mipsel-openwrt-linux-musl/lib/crti.o:/builder/shared-workdir/build/build_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/musl-1.1.24/crt/mips/crti.s:8: first defined here
/home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/bin/../lib/gcc/mipsel-openwrt-linux-musl/7.5.0/../../../../mipsel-openwrt-linux-musl/bin/ld: /home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/usr/lib/libsqlite3.so: in function `_fini':
/builder/shared-workdir/build/build_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/musl-1.1.24/crt/mips/crti.s:17: multiple definition of `_fini'; /home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/bin/../lib/gcc/mipsel-openwrt-linux-musl/7.5.0/../../../../mipsel-openwrt-linux-musl/lib/crti.o:/builder/shared-workdir/build/build_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/musl-1.1.24/crt/mips/crti.s:17: first defined here
/home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/bin/../lib/gcc/mipsel-openwrt-linux-musl/7.5.0/../../../../mipsel-openwrt-linux-musl/bin/ld: /home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/usr/lib/libsqlite3.so:(.got+0x0): multiple definition of `_GLOBAL_OFFSET_TABLE_'; /home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/bin/../lib/gcc/mipsel-openwrt-linux-musl/7.5.0/../../../../mipsel-openwrt-linux-musl/lib/crti.o:(.got+0x0): first defined here
/home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/bin/../lib/gcc/mipsel-openwrt-linux-musl/7.5.0/../../../../mipsel-openwrt-linux-musl/bin/ld: /home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/bin/../lib/gcc/mipsel-openwrt-linux-musl/7.5.0/crtendS.o:(.dtors+0x0): multiple definition of `__DTOR_END__'; /home/d1/IRZ/openwrt-sdk/staging_dir/toolchain-mipsel_24kc_gcc-7.5.0_musl/usr/lib/libsqlite3.so:(.dtors+0x4): first defined here
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/open-ocpp-dynamic.dir/build.make:279: ../bin/native/libopen-ocpp.so] Ошибка 1
make[1]: *** [CMakeFiles/Makefile2:1344: CMakeFiles/open-ocpp-dynamic.dir/all] Ошибка 2
make: *** [Makefile:163: all] Ошибка 2

Drus566 · 2022-10-10T04:09:21Z

Drus566
Oct 10, 2022
Author

In general, I made this makefile, and fixed a couple of errors that are googled during the compilation process, and got my build)

include $(TOPDIR)/rules.mk
 
PKG_NAME:=ocppclient
PKG_VERSION:=06.10.2022
PKG_RELEASE=1
 
PKG_LICENSE:=GPL-2.0
PKG_LICENSE_FILES:=
 
PKG_MAINTAINER:=drus <[email protected]>
 
include $(INCLUDE_DIR)/package.mk
include $(INCLUDE_DIR)/cmake.mk #If usingcmake, You must add this line
 
define Package/ocppclient
	SECTION:=net
	CATEGORY:=ocppclient
	DEPENDS:=+kmod-tun +libpthread +librt +libubox +libuci +libstdcpp +libsqlite3 #Add the required dependency library, if you don’t add it, it will compile and report an error
	TITLE:=OCPPClient
endef

define Package/ocppclient/extra_provides
	echo "/home/d1/IRZ/openwrt-sdk/staging_dir/target-mipsel_24kc_musl/usr/lib/libcrypto.so.1.1"; \
	echo "/home/d1/IRZ/openwrt-sdk/staging_dir/target-mipsel_24kc_musl/usr/lib/libssl.so.1.1";
endef
 
define Build/Prepare
	mkdir -p $(PKG_BUILD_DIR)
	$(CP) ./SOURCES/* $(PKG_BUILD_DIR)/
endef
 
define Package/occpclient/description
	ocppclient from cmake
endef
 
define Package/ocppclient/install
	$(INSTALL_DIR) $(1)/usr/share/ocppclient
	$(INSTALL_DIR) $(1)/usr/lib
	$(CP) $(PKG_BUILD_DIR)/bin/native/libopen-ocpp.so $(1)/usr/lib
	$(CP) $(PKG_BUILD_DIR)/bin $(1)/usr/share/ocppclient
	$(CP) $(PKG_BUILD_DIR)/schemas $(1)/usr/share/ocppclient
endef
$(eval $(call BuildPackage,ocppclient))

Thank you! You can close the topic)

4 replies

c-jimenez Oct 10, 2022
Maintainer

Thank you for you feedback, I hope it will helpsome other people working with an OpenWRT distribution.

Drus566 Oct 12, 2022
Author

My bad sorry, THIS WORK)

define Package/ocppclient
	SECTION:=net
	CATEGORY:=ocppclient
	DEPENDS:=+kmod-tun +libpthread +librt +libubox +libuci +libstdcpp +libsqlite3 +libopenssl #Add the required dependency library, if you don’t add it, it will compile and report an error
	TITLE:=OCPPClient
endef

Drus566 Oct 12, 2022
Author

Thank you for you feedback, I hope it will helpsome other people working with an OpenWRT distribution.

Greetings, do you have an implementation so that both connectors can be processed at the same time? In /examples only sequential processing
Thanks in advance!

c-jimenez Oct 12, 2022
Maintainer

Hi,
You can process multiple connectors in // using multiple thread since the stack should be thread safe.
You can also manage all the connectors in // in a single thread like in this example => https://github.com/c-jimenez/open-ocpp-simu/blob/develop/src/chargepoint/SimulatedChargePoint.cpp.

wlbleaboy · 2024-12-19T07:03:07Z

wlbleaboy
Dec 19, 2024

Just set the "cross_compiler path" in two CMakeLists.txt, which is located in the [top Directory] and in the [src Directory] .
like thus:
in the top Directory's CMakeLists.txt
cmake_minimum_required(VERSION 3.13)
SET(TOOLCHAIN_DIR /opt/cross_compiler)
SET(CMAKE_C_COMPILER ${TOOLCHAIN_DIR}/bin/arm-linux-gcc)
SET(CMAKE_CXX_COMPILER ${TOOLCHAIN_DIR}/bin/arm-linux-g++)

in the src Directory's CMakeLists.txt
SET(TOOLCHAIN_DIR /opt/cross_compiler)
SET(CMAKE_C_COMPILER ${TOOLCHAIN_DIR}/bin/arm-linux-gcc)
SET(CMAKE_CXX_COMPILER ${TOOLCHAIN_DIR}/bin/arm-linux-g++)

  # Subdirectories
   add_subdirectory(centralsystem)

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