systemC 获取代码&编译

systemC 源码获取：

gitee上获取:https://gitee.com/soc-esl/systemc?_from=gitee_search

git clone git@gitee.com:soc-esl/systemc.git

systemC 编译安装

进入到systemc目录切换到2.3.3 tag

git check -b tag-2.3.3 2.3.3

mkdir build

cd build

cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=1 -DCMAKE_INSTALL_PREFIX=/home/jin/libs/systemc/ -DCMAKE_CXX_STANDARD=11 ..

make -j32

make check #自动跑example下面的例子

make install

至此systemc已经安装到/home/jin/libs/systemc/目录下面

尝试很多方法，cmake编译生成的.so不能完成配合自己的写model编译，卒……

问题原因：因子库中systemc的systemc中设置CXX标准的默认值为98，和主仓库中的设定的17为能同步到子仓库

继续上述问题，如何修改呢？ 

方法1：主CMakeList.txt不指定CXX标准

方法2：更改systemc的编译库从动态库到静态库(更改systemc的CMakeList.txt的BUILD_SHARED_LIBS OFF)

方法3：更改systemc的默认CXX标准值和主仓库一致，在主仓库指定或者直接更改更改systemc的CMakeList.txt的CMAKE_CXX_STANDARD

 在主仓库强制指定CXX标准 

# 强制使用C++14标准
set(CMAKE_CXX_STANDARD 14 CACHE STRING "C++ standard" FORCE)
set(CMAKE_CXX_STANDARD_REQUIRED ON CACHE BOOL "Require C++14" FORCE)
set(CMAKE_CXX_EXTENSIONS OFF CACHE BOOL "Disable compiler extensions" FORCE)

set(SystemC_LIBRARIES "systemc")

set(Systemc_ROOT ${CMAKE_SOURCE_DIR}/systemc)
set(SystemC_INCLUDE_DIRS ${Systemc_ROOT}/include)
add_subdirectory(${Systemc_ROOT})
set_target_properties(systemc PROPERTIES BUILD_SHARED_LIBS OFF)
if(TARGET systemc)
    target_compile_features(systemc PRIVATE cxx_std_14)
    set_target_properties(systemc PROPERTIES
        CXX_STANDARD 14
        CXX_STANDARD_REQUIRED ON
        CXX_EXTENSIONS OFF
    )
endif()

 

使用Cmake搭建工程，参照如图所示：红框内加入自己的文件。

 

 

 放弃cmake编译，改用../configure编译

操作如上，创建临时目录执行

../configure --prefix=/home/jin/libs/system
make -j32
make install -j32

执行systemC例子

Cpp文件测试内容

// Learn with Examples, 2020, MIT license
#include <systemc> // include the systemC header file
using namespace sc_core; // use namespace

void hello1() { // a normal c++ function
  std::cout << "Hello world using approach 1" << std::endl;
}

struct HelloWorld : sc_module { // define a systemC module
  SC_CTOR(HelloWorld) {// constructor function, to be explained later
    SC_METHOD(hello2); // register a member function to the kernel
  }
  void hello2(void) { // a function for systemC simulation kernel, void inside () can be omitted
    std::cout << "Hello world using approach 2" << std::endl;
  }
};

int sc_main(int, char*[]) { // entry point
  hello1(); // approach #1: manually invoke a normal function
  HelloWorld helloworld("helloworld"); // approach #2, instantiate a systemC module
  sc_start(); // let systemC simulation kernel to invoke helloworld.hello2();
  return 0;
}

makefile文件

LIBDIR=-L /home/jin/libs/systemc/lib-linux64
INCDIR=-I /home/jin/libs/systemc/include
LISTDIR=/home/jin/libs/systemc/lib-linux64
LIB=-lsystemc
# LD_LIBRARY_PATH
SRC=aa.cpp

all:
    g++ $(SRC) $(LIBDIR) $(LIB) $(INCDIR) -o test

clean:
    rm -rf *.o

并且需要在环境变量中加入

export LD_LIBRARY_PATH=/home/jin/libs/systemc/lib-linux64

 

执行后输出：

        SystemC 2.3.4-Accellera --- Sep 13 2023 23:12:25
        Copyright (c) 1996-2022 by all Contributors,
        ALL RIGHTS RESERVED
Hello world using approach 1
Hello world using approach 2