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CompilerInstance.cpp in oclint-22.02
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#include "oclint/CompilerInstance.h" | |
#include <clang/Basic/TargetInfo.h> | |
#include <clang/Frontend/FrontendActions.h> | |
#include <clang/StaticAnalyzer/Frontend/FrontendActions.h> | |
#include "oclint/Options.h" | |
using namespace oclint; | |
static clang::FrontendAction *getFrontendAction() { | |
if (option::enableClangChecker()) { | |
/** | |
*/ | |
return new clang::ento::AnalysisAction(); | |
} | |
/** | |
LibTooling | |
https://clang.llvm.org/docs/LibTooling.html | |
1. SyntaxOnlyAction | |
In this tutorial, we’ll demonstrate the different ways of running | |
Clang’s SyntaxOnlyAction, which runs a quick syntax check, | |
over a bunch of code. | |
*/ | |
return new clang::SyntaxOnlyAction(); | |
} | |
void CompilerInstance::setupTarget() { | |
if ((getLangOpts().CUDA || getLangOpts().OpenMPIsDevice) && | |
!getFrontendOpts().AuxTriple.empty()) | |
{ | |
auto targetOptions = std::make_shared<clang::TargetOptions>(); | |
targetOptions->Triple = llvm::Triple::normalize(getFrontendOpts().AuxTriple); | |
targetOptions->HostTriple = getTarget().getTriple().str(); | |
setAuxTarget(clang::TargetInfo::CreateTargetInfo(getDiagnostics(), targetOptions)); | |
} | |
/** | |
TargetInfo::adjust() - Set forced language options. | |
Apply changes to the target information with respect to certain language options | |
which change the target configuration and adjust the language based on the | |
target options where applicable. | |
*/ | |
getTarget().adjust(getDiagnostics(), getLangOpts()); | |
/* | |
CompilerInstance::getAuxTarget() | |
Get the Auxiliary Target info. | |
*/ | |
if (auto *auxTarget = getAuxTarget()) { | |
// Set the `Auxiliary target` for the Target. | |
getTarget().setAuxTarget(auxTarget); | |
} | |
} | |
void CompilerInstance::start() { | |
assert(hasDiagnostics() && "Diagnostics engine is not initialized!"); | |
assert(!getFrontendOpts().ShowHelp && "Client must handle '-help'!"); | |
assert(!getFrontendOpts().ShowVersion && "Client must handle '-version'!"); | |
setTarget(clang::TargetInfo::CreateTargetInfo(getDiagnostics(), getInvocation().TargetOpts)); | |
if (!hasTarget()) { return; } | |
setupTarget(); | |
/** | |
clang::CompilerInstance::getFrontendOpts() return clang::FrontendOptions instance. | |
1. clang::FrontendOptions | |
Options for controlling the behavior of the frontend. | |
2. clang::FrontendOptions::Inputs | |
SmallVector<FrontendInputFile, 0> clang::FrontendOptions::Inputs | |
The input files and their types. | |
3. clang::FrontendAction | |
Abstract base class for actions which can be performed by the frontend. | |
*/ | |
for (const auto& input : getFrontendOpts().Inputs) { | |
if (hasSourceManager()) { | |
getSourceManager().clearIDTables(); | |
} | |
clang::FrontendAction *frontendAction = getFrontendAction(); | |
/** | |
1. FrontendAction::BeginSourceFile() | |
bool FrontendAction::BeginSourceFile(CompilerInstance & CI, | |
const FrontendInputFile & Input) | |
Prepare the action for processing the input file Input. | |
This is run after the options and frontend have been initialized, | |
but prior to executing any per-file processing. | |
*/ | |
if(frontendAction->BeginSourceFile(*this, input)) { | |
/** | |
1. FrontendAction::Execute() | |
llvm::Error FrontendAction::Execute() | |
Set the source manager's main input file, and run the action. | |
*/ | |
static_cast<void>(frontendAction->Execute()); | |
_actions.emplace_back(frontendAction); | |
} | |
} | |
} | |
void CompilerInstance::end() { | |
for (const auto& action : _actions) { | |
/** | |
*/ | |
action->EndSourceFile(); | |
} | |
getDiagnostics().getClient()->finish(); | |
} |
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