71c0e1417b
In cmMakefile we save all invoked commands so that FinalPass can be called on them later. Most commands have no final pass, so we should keep only the few that do.
321 lines
8.2 KiB
C++
321 lines
8.2 KiB
C++
/*=========================================================================
|
|
|
|
Program: CMake - Cross-Platform Makefile Generator
|
|
Module: $RCSfile$
|
|
Language: C++
|
|
Date: $Date$
|
|
Version: $Revision$
|
|
|
|
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
|
|
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
|
|
|
|
This software is distributed WITHOUT ANY WARRANTY; without even
|
|
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
PURPOSE. See the above copyright notices for more information.
|
|
|
|
=========================================================================*/
|
|
#include "cmLoadCommandCommand.h"
|
|
#include "cmCPluginAPI.h"
|
|
#include "cmCPluginAPI.cxx"
|
|
#include "cmDynamicLoader.h"
|
|
|
|
#include <cmsys/DynamicLoader.hxx>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#ifdef __QNX__
|
|
# include <malloc.h> /* for malloc/free on QNX */
|
|
#endif
|
|
|
|
#include <signal.h>
|
|
extern "C" void TrapsForSignalsCFunction(int sig);
|
|
|
|
|
|
// a class for loadabple commands
|
|
class cmLoadedCommand : public cmCommand
|
|
{
|
|
public:
|
|
cmLoadedCommand() {
|
|
memset(&this->info,0,sizeof(this->info));
|
|
this->info.CAPI = &cmStaticCAPI;
|
|
}
|
|
|
|
///! clean up any memory allocated by the plugin
|
|
~cmLoadedCommand();
|
|
|
|
/**
|
|
* This is a virtual constructor for the command.
|
|
*/
|
|
virtual cmCommand* Clone()
|
|
{
|
|
cmLoadedCommand *newC = new cmLoadedCommand;
|
|
// we must copy when we clone
|
|
memcpy(&newC->info,&this->info,sizeof(info));
|
|
return newC;
|
|
}
|
|
|
|
/**
|
|
* This is called when the command is first encountered in
|
|
* the CMakeLists.txt file.
|
|
*/
|
|
virtual bool InitialPass(std::vector<std::string> const& args,
|
|
cmExecutionStatus &);
|
|
|
|
/**
|
|
* This is called at the end after all the information
|
|
* specified by the command is accumulated. Most commands do
|
|
* not implement this method. At this point, reading and
|
|
* writing to the cache can be done.
|
|
*/
|
|
virtual void FinalPass();
|
|
virtual bool HasFinalPass() const
|
|
{ return this->info.FinalPass? true:false; }
|
|
|
|
/**
|
|
* The name of the command as specified in CMakeList.txt.
|
|
*/
|
|
virtual const char* GetName() { return info.Name; }
|
|
|
|
/**
|
|
* Succinct documentation.
|
|
*/
|
|
virtual const char* GetTerseDocumentation()
|
|
{
|
|
if (this->info.GetTerseDocumentation)
|
|
{
|
|
cmLoadedCommand::InstallSignalHandlers(info.Name);
|
|
const char* ret = info.GetTerseDocumentation();
|
|
cmLoadedCommand::InstallSignalHandlers(info.Name, 1);
|
|
return ret;
|
|
}
|
|
else
|
|
{
|
|
return "LoadedCommand without any additional documentation";
|
|
}
|
|
}
|
|
static const char* LastName;
|
|
static void TrapsForSignals(int sig)
|
|
{
|
|
fprintf(stderr, "CMake loaded command %s crashed with signal: %d.\n",
|
|
cmLoadedCommand::LastName, sig);
|
|
}
|
|
static void InstallSignalHandlers(const char* name, int remove = 0)
|
|
{
|
|
cmLoadedCommand::LastName = name;
|
|
if(!name)
|
|
{
|
|
cmLoadedCommand::LastName = "????";
|
|
}
|
|
|
|
if(!remove)
|
|
{
|
|
signal(SIGSEGV, TrapsForSignalsCFunction);
|
|
#ifdef SIGBUS
|
|
signal(SIGBUS, TrapsForSignalsCFunction);
|
|
#endif
|
|
signal(SIGILL, TrapsForSignalsCFunction);
|
|
}
|
|
else
|
|
{
|
|
signal(SIGSEGV, 0);
|
|
#ifdef SIGBUS
|
|
signal(SIGBUS, 0);
|
|
#endif
|
|
signal(SIGILL, 0);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* More documentation.
|
|
*/
|
|
virtual const char* GetFullDocumentation()
|
|
{
|
|
if (this->info.GetFullDocumentation)
|
|
{
|
|
cmLoadedCommand::InstallSignalHandlers(info.Name);
|
|
const char* ret = info.GetFullDocumentation();
|
|
cmLoadedCommand::InstallSignalHandlers(info.Name, 1);
|
|
return ret;
|
|
}
|
|
else
|
|
{
|
|
return "LoadedCommand without any additional documentation";
|
|
}
|
|
}
|
|
|
|
cmTypeMacro(cmLoadedCommand, cmCommand);
|
|
|
|
cmLoadedCommandInfo info;
|
|
};
|
|
|
|
extern "C" void TrapsForSignalsCFunction(int sig)
|
|
{
|
|
cmLoadedCommand::TrapsForSignals(sig);
|
|
}
|
|
|
|
|
|
const char* cmLoadedCommand::LastName = 0;
|
|
|
|
bool cmLoadedCommand::InitialPass(std::vector<std::string> const& args,
|
|
cmExecutionStatus &)
|
|
{
|
|
if (!info.InitialPass)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
// clear the error string
|
|
if (this->info.Error)
|
|
{
|
|
free(this->info.Error);
|
|
}
|
|
|
|
// create argc and argv and then invoke the command
|
|
int argc = static_cast<int> (args.size());
|
|
char **argv = 0;
|
|
if (argc)
|
|
{
|
|
argv = (char **)malloc(argc*sizeof(char *));
|
|
}
|
|
int i;
|
|
for (i = 0; i < argc; ++i)
|
|
{
|
|
argv[i] = strdup(args[i].c_str());
|
|
}
|
|
cmLoadedCommand::InstallSignalHandlers(info.Name);
|
|
int result = info.InitialPass((void *)&info,
|
|
(void *)this->Makefile,argc,argv);
|
|
cmLoadedCommand::InstallSignalHandlers(info.Name, 1);
|
|
cmFreeArguments(argc,argv);
|
|
|
|
if (result)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
/* Initial Pass must have failed so set the error string */
|
|
if (this->info.Error)
|
|
{
|
|
this->SetError(this->info.Error);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void cmLoadedCommand::FinalPass()
|
|
{
|
|
if (this->info.FinalPass)
|
|
{
|
|
cmLoadedCommand::InstallSignalHandlers(info.Name);
|
|
this->info.FinalPass((void *)&this->info,(void *)this->Makefile);
|
|
cmLoadedCommand::InstallSignalHandlers(info.Name, 1);
|
|
}
|
|
}
|
|
|
|
cmLoadedCommand::~cmLoadedCommand()
|
|
{
|
|
if (this->info.Destructor)
|
|
{
|
|
cmLoadedCommand::InstallSignalHandlers(info.Name);
|
|
this->info.Destructor((void *)&this->info);
|
|
cmLoadedCommand::InstallSignalHandlers(info.Name, 1);
|
|
}
|
|
if (this->info.Error)
|
|
{
|
|
free(this->info.Error);
|
|
}
|
|
}
|
|
|
|
// cmLoadCommandCommand
|
|
bool cmLoadCommandCommand
|
|
::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
|
|
{
|
|
if(args.size() < 1 )
|
|
{
|
|
return true;
|
|
}
|
|
|
|
// Construct a variable to report what file was loaded, if any.
|
|
// Start by removing the definition in case of failure.
|
|
std::string reportVar = "CMAKE_LOADED_COMMAND_";
|
|
reportVar += args[0];
|
|
this->Makefile->RemoveDefinition(reportVar.c_str());
|
|
|
|
// the file must exist
|
|
std::string moduleName =
|
|
this->Makefile->GetRequiredDefinition("CMAKE_SHARED_MODULE_PREFIX");
|
|
moduleName += "cm" + args[0];
|
|
moduleName +=
|
|
this->Makefile->GetRequiredDefinition("CMAKE_SHARED_MODULE_SUFFIX");
|
|
|
|
// search for the file
|
|
std::vector<std::string> path;
|
|
for (unsigned int j = 1; j < args.size(); j++)
|
|
{
|
|
// expand variables
|
|
std::string exp = args[j];
|
|
cmSystemTools::ExpandRegistryValues(exp);
|
|
|
|
// Glob the entry in case of wildcards.
|
|
cmSystemTools::GlobDirs(exp.c_str(), path);
|
|
}
|
|
|
|
// Try to find the program.
|
|
std::string fullPath = cmSystemTools::FindFile(moduleName.c_str(), path);
|
|
if (fullPath == "")
|
|
{
|
|
cmOStringStream e;
|
|
e << "Attempt to load command failed from file \""
|
|
<< moduleName << "\"";
|
|
this->SetError(e.str().c_str());
|
|
return false;
|
|
}
|
|
|
|
// try loading the shared library / dll
|
|
cmsys::DynamicLoader::LibraryHandle lib
|
|
= cmDynamicLoader::OpenLibrary(fullPath.c_str());
|
|
if(!lib)
|
|
{
|
|
std::string err = "Attempt to load the library ";
|
|
err += fullPath + " failed.";
|
|
const char* error = cmsys::DynamicLoader::LastError();
|
|
if ( error )
|
|
{
|
|
err += " Additional error info is:\n";
|
|
err += error;
|
|
}
|
|
this->SetError(err.c_str());
|
|
return false;
|
|
}
|
|
|
|
// Report what file was loaded for this command.
|
|
this->Makefile->AddDefinition(reportVar.c_str(), fullPath.c_str());
|
|
|
|
// find the init function
|
|
std::string initFuncName = args[0] + "Init";
|
|
CM_INIT_FUNCTION initFunction
|
|
= (CM_INIT_FUNCTION)
|
|
cmsys::DynamicLoader::GetSymbolAddress(lib, initFuncName.c_str());
|
|
if ( !initFunction )
|
|
{
|
|
initFuncName = "_";
|
|
initFuncName += args[0];
|
|
initFuncName += "Init";
|
|
initFunction = (CM_INIT_FUNCTION)(
|
|
cmsys::DynamicLoader::GetSymbolAddress(lib, initFuncName.c_str()));
|
|
}
|
|
// if the symbol is found call it to set the name on the
|
|
// function blocker
|
|
if(initFunction)
|
|
{
|
|
// create a function blocker and set it up
|
|
cmLoadedCommand *f = new cmLoadedCommand();
|
|
(*initFunction)(&f->info);
|
|
this->Makefile->AddCommand(f);
|
|
return true;
|
|
}
|
|
this->SetError("Attempt to load command failed. "
|
|
"No init function found.");
|
|
return false;
|
|
}
|
|
|