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//===--- Compilation.cpp - Compilation Task Implementation --------------*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "clang/Driver/Compilation.h"
#include "clang/Driver/Action.h"
#include "clang/Driver/ArgList.h"
#include "clang/Driver/Driver.h"
#include "clang/Driver/DriverDiagnostic.h"
#include "clang/Driver/ToolChain.h"
#include "llvm/Support/raw_ostream.h"
#include <sys/stat.h>
#include <errno.h>
using namespace clang::driver;
Compilation::Compilation(Driver &D,
ToolChain &_DefaultToolChain,
ArgList *_Args)
: TheDriver(D), DefaultToolChain(_DefaultToolChain), Args(_Args) {
}
Compilation::~Compilation() {
delete Args;
// Free any derived arg lists.
for (llvm::DenseMap<const ToolChain*, ArgList*>::iterator
it = TCArgs.begin(), ie = TCArgs.end(); it != ie; ++it) {
ArgList *A = it->second;
if (A != Args)
delete Args;
}
// Free the actions, if built.
for (ActionList::iterator it = Actions.begin(), ie = Actions.end();
it != ie; ++it)
delete *it;
}
const ArgList &Compilation::getArgsForToolChain(const ToolChain *TC) {
if (!TC)
TC = &DefaultToolChain;
ArgList *&Entry = TCArgs[TC];
if (!Entry)
Entry = TC->TranslateArgs(*Args);
return *Entry;
}
void Compilation::PrintJob(llvm::raw_ostream &OS, const Job *J,
const char *Terminator) const {
if (const Command *C = dyn_cast<Command>(J)) {
OS << " \"" << C->getExecutable() << '"';
for (ArgStringList::const_iterator it = C->getArguments().begin(),
ie = C->getArguments().end(); it != ie; ++it)
OS << " \"" << *it << '"';
OS << Terminator;
} else if (const PipedJob *PJ = dyn_cast<PipedJob>(J)) {
for (PipedJob::const_iterator
it = PJ->begin(), ie = PJ->end(); it != ie; ++it)
PrintJob(OS, *it, (it + 1 != PJ->end()) ? " |\n" : "\n");
} else {
const JobList *Jobs = cast<JobList>(J);
for (JobList::const_iterator
it = Jobs->begin(), ie = Jobs->end(); it != ie; ++it)
PrintJob(OS, *it, Terminator);
}
}
bool Compilation::CleanupFileList(const ArgStringList &Files,
bool IssueErrors) const {
bool Success = true;
for (ArgStringList::const_iterator
it = Files.begin(), ie = Files.end(); it != ie; ++it) {
llvm::sys::Path P(*it);
std::string Error;
if (P.eraseFromDisk(false, &Error)) {
// Failure is only failure if the file doesn't exist. There is a
// race condition here due to the limited interface of
// llvm::sys::Path, we want to know if the removal gave E_NOENT.
// FIXME: Grumble, P.exists() is broken. PR3837.
struct stat buf;
if (::stat(P.c_str(), &buf) || errno != ENOENT) {
if (IssueErrors)
getDriver().Diag(clang::diag::err_drv_unable_to_remove_file)
<< Error;
Success = false;
}
}
}
return Success;
}
int Compilation::Execute() const {
// Just print if -### was present.
if (getArgs().hasArg(options::OPT__HASH_HASH_HASH)) {
PrintJob(llvm::errs(), &Jobs, "\n");
return 0;
}
// FIXME: Execute.
int Res = 0;
// Remove temp files.
CleanupFileList(TempFiles);
// If the compilation failed, remove result files as well.
if (Res != 0)
CleanupFileList(ResultFiles, true);
return 0;
}
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