//
//===----------------------------------------------------------------------===//
+#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
#include "llvm/PassManager.h"
+#include "llvm/Assembly/PrintModulePass.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/IRReader.h"
#include "llvm/Support/ManagedStatic.h"
-#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/SystemUtils.h"
#include "llvm/System/Signals.h"
-#include <iostream>
#include <memory>
-#include <fstream>
using namespace llvm;
// InputFilename - The filename to read from.
cl::value_desc("filename"), cl::init("-"));
static cl::opt<bool>
-Force("f", cl::desc("Overwrite output files"));
+Force("f", cl::desc("Enable binary output on terminals"));
static cl::opt<bool>
DeleteFn("delete", cl::desc("Delete specified Globals from Module"));
Relink("relink",
cl::desc("Turn external linkage for callees of function to delete"));
-// ExtractFunc - The function to extract from the module...
-static cl::opt<std::string>
-ExtractFunc("func", cl::desc("Specify function to extract"), cl::init(""),
- cl::value_desc("function"));
+// ExtractFuncs - The functions to extract from the module...
+static cl::list<std::string>
+ExtractFuncs("func", cl::desc("Specify function to extract"),
+ cl::ZeroOrMore, cl::value_desc("function"));
-// ExtractGlobal - The global to extract from the module...
-static cl::opt<std::string>
-ExtractGlobal("glob", cl::desc("Specify global to extract"), cl::init(""),
- cl::value_desc("global"));
+// ExtractGlobals - The globals to extract from the module...
+static cl::list<std::string>
+ExtractGlobals("glob", cl::desc("Specify global to extract"),
+ cl::ZeroOrMore, cl::value_desc("global"));
+
+static cl::opt<bool>
+OutputAssembly("S",
+ cl::desc("Write output as LLVM assembly"), cl::Hidden);
int main(int argc, char **argv) {
- llvm_shutdown_obj X; // Call llvm_shutdown() on exit.
- cl::ParseCommandLineOptions(argc, argv, "llvm extractor\n");
+ // Print a stack trace if we signal out.
sys::PrintStackTraceOnErrorSignal();
+ PrettyStackTraceProgram X(argc, argv);
+ LLVMContext &Context = getGlobalContext();
+ llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
+ cl::ParseCommandLineOptions(argc, argv, "llvm extractor\n");
+
+ SMDiagnostic Err;
std::auto_ptr<Module> M;
-
- MemoryBuffer *Buffer = MemoryBuffer::getFileOrSTDIN(InputFilename);
- if (Buffer == 0) {
- cerr << argv[0] << ": Error reading file '" + InputFilename + "'\n";
- return 1;
- } else {
- M.reset(ParseBitcodeFile(Buffer));
- }
- delete Buffer;
-
+ M.reset(ParseIRFile(InputFilename, Err, Context));
+
if (M.get() == 0) {
- cerr << argv[0] << ": bitcode didn't read correctly.\n";
+ Err.Print(argv[0], errs());
return 1;
}
- // Figure out which function we should extract
- GlobalVariable *G = ExtractGlobal.size() ?
- M.get()->getNamedGlobal(ExtractGlobal) : 0;
+ std::vector<GlobalValue *> GVs;
- // Figure out which function we should extract
- if (!ExtractFunc.size()) ExtractFunc = "main";
- Function *F = M.get()->getFunction(ExtractFunc);
+ // Figure out which globals we should extract.
+ for (size_t i = 0, e = ExtractGlobals.size(); i != e; ++i) {
+ GlobalValue *GV = M.get()->getNamedGlobal(ExtractGlobals[i]);
+ if (!GV) {
+ errs() << argv[0] << ": program doesn't contain global named '"
+ << ExtractGlobals[i] << "'!\n";
+ return 1;
+ }
+ GVs.push_back(GV);
+ }
- if (F == 0 && G == 0) {
- cerr << argv[0] << ": program doesn't contain function named '"
- << ExtractFunc << "' or a global named '" << ExtractGlobal << "'!\n";
- return 1;
+ // Figure out which functions we should extract.
+ for (size_t i = 0, e = ExtractFuncs.size(); i != e; ++i) {
+ GlobalValue *GV = M.get()->getFunction(ExtractFuncs[i]);
+ if (!GV) {
+ errs() << argv[0] << ": program doesn't contain function named '"
+ << ExtractFuncs[i] << "'!\n";
+ return 1;
+ }
+ GVs.push_back(GV);
}
// In addition to deleting all other functions, we also want to spiff it
// up a little bit. Do this now.
PassManager Passes;
Passes.add(new TargetData(M.get())); // Use correct TargetData
- // Either isolate the function or delete it from the Module
- std::vector<GlobalValue*> GVs;
- if (F) GVs.push_back(F);
- if (G) GVs.push_back(G);
Passes.add(createGVExtractionPass(GVs, DeleteFn, Relink));
if (!DeleteFn)
Passes.add(createDeadTypeEliminationPass()); // Remove dead types...
Passes.add(createStripDeadPrototypesPass()); // Remove dead func decls
- std::ostream *Out = 0;
+ // Make sure that the Output file gets unlinked from the disk if we get a
+ // SIGINT
+ sys::RemoveFileOnSignal(sys::Path(OutputFilename));
- if (OutputFilename != "-") { // Not stdout?
- if (!Force && std::ifstream(OutputFilename.c_str())) {
- // If force is not specified, make sure not to overwrite a file!
- cerr << argv[0] << ": error opening '" << OutputFilename
- << "': file exists!\n"
- << "Use -f command line argument to force output\n";
- return 1;
- }
- std::ios::openmode io_mode = std::ios::out | std::ios::trunc |
- std::ios::binary;
- Out = new std::ofstream(OutputFilename.c_str(), io_mode);
- } else { // Specified stdout
- // FIXME: cout is not binary!
- Out = &std::cout;
+ std::string ErrorInfo;
+ raw_fd_ostream Out(OutputFilename.c_str(), ErrorInfo,
+ raw_fd_ostream::F_Binary);
+ if (!ErrorInfo.empty()) {
+ errs() << ErrorInfo << '\n';
+ return 1;
}
- Passes.add(CreateBitcodeWriterPass(*Out));
+ if (OutputAssembly)
+ Passes.add(createPrintModulePass(&Out));
+ else if (Force || !CheckBitcodeOutputToConsole(Out, true))
+ Passes.add(createBitcodeWriterPass(Out));
+
Passes.run(*M.get());
- if (Out != &std::cout)
- delete Out;
return 0;
}
projects / oota-llvm.git / blobdiff