<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/58012>58012</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            我在测试自己编写的插件时显示让我写issues报告bug
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          wz-fu
      </td>
    </tr>
</table>

<pre>
    bug信息：

> 
>
> 
>
> 

clang版本：16.0.0

命令：

> ./bin/clang -cc1 -load ./lib/FunPramCheckerPlugin.so -analyze -analyzer-checker=plugin.FunPramChecker ~/ShiXi/Example_Test.c -I /usr/include/ -I ~/llvm-project/build/lib/clang/16.0.0/include/

测试文件：

~~~c
#include "stdio.h"

typedef int (*main_t)(int, char **);
int main(int argc, char **argv)
{
  main_t foo = main;
  int exit_code = foo(argc, argv); // actually calls main()!
  return exit_code;
}
~~~

插件文件：

~~~c++
#include <iostream>
#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
#include "clang/StaticAnalyzer/Core/Checker.h"
#include "clang/StaticAnalyzer/Frontend/CheckerRegistry.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
#include "clang/Basic/LLVM.h"
#include "llvm/Object/ObjectFile.h"

using namespace clang;
using namespace ento;
using namespace std;

namespace
{
    class FunPramChecker : public Checker<check::PreCall>
    {
    public:
        mutable std::unique_ptr<BuiltinBug> BT;

    public:
        void checkPreCall(const CallEvent &Call, CheckerContext &Ctx) const;
    };
} // anonymous namespace

void FunPramChecker::checkPreCall(const CallEvent &Call, CheckerContext &Ctx) const
{
    unsigned PramNum = Call.getNumArgs();
    const FunctionDecl *Pramarg = Call.getArgSVal(0).getAsFunctionDecl();
    string name = Pramarg->getNameInfo().getAsString();
    cout << name << endl;
}
// Register plugin!
extern "C" void clang_registerCheckers(CheckerRegistry &registry)
{
    registry.addChecker<FunPramChecker>(
        "plugin.FunPramChecker", "The parameter of the function is illegal",
        "");
}

extern "C" const char clang_analyzerAPIVersionString[] =
    CLANG_ANALYZER_API_VERSION_STRING;
~~~

CMakeLists.txt

~~~cmake
set(LLVM_LINK_COMPONENTS
  Support
  )

set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/FunPramCheckerPlugin.exports)
add_llvm_library(FunPramCheckerPlugin MODULE BUILDTREE_ONLY FunPramChecker.cpp PLUGIN_TOOL clang)

clang_target_link_libraries(FunPramCheckerPlugin PRIVATE
  clangAnalysis
  clangAST
  clangStaticAnalyzerCore
  clangStaticAnalyzerFrontend
  )
~~~

FunPramCheckerPlugin.exports:

~~~
clang_registerCheckers
clang_analyzerAPIVersionString
~~~
</pre>
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