// Additionally, this program outputs a shell script that is used to invoke LLI
// to execute the program. In this manner, the generated executable (a.out for
// example), is directly executable, whereas the bitcode file actually lives in
-// the a.out.bc file generated by this program. Also, Force is on by default.
+// the a.out.bc file generated by this program.
//
// Note that if someone (or a script) deletes the executable program generated,
// the .bc file will be left around. Considering that this is a temporary hack,
#include "llvm/LinkAllVMCore.h"
#include "llvm/Linker.h"
+#include "llvm/LLVMContext.h"
#include "llvm/System/Program.h"
#include "llvm/Module.h"
#include "llvm/PassManager.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetMachineRegistry.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileUtilities.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/Streams.h"
+#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/SystemUtils.h"
+#include "llvm/Support/raw_ostream.h"
#include "llvm/System/Signals.h"
-#include <fstream>
+#include "llvm/Config/config.h"
#include <memory>
#include <cstring>
using namespace llvm;
+// Rightly this should go in a header file but it just seems such a waste.
+namespace llvm {
+extern void Optimize(Module*);
+}
+
// Input/Output Options
static cl::list<std::string> InputFilenames(cl::Positional, cl::OneOrMore,
cl::desc("<input bitcode files>"));
cl::desc("Override output filename"),
cl::value_desc("filename"));
+static cl::opt<std::string> BitcodeOutputFilename("b", cl::init(""),
+ cl::desc("Override bitcode output filename"),
+ cl::value_desc("filename"));
+
static cl::opt<bool> Verbose("v",
cl::desc("Print information about actions taken"));
static cl::opt<bool> CO8("end-group", cl::Hidden,
cl::desc("Compatibility option: ignored"));
+static cl::opt<std::string> CO9("m", cl::Hidden,
+ cl::desc("Compatibility option: ignored"));
+
/// This is just for convenience so it doesn't have to be passed around
/// everywhere.
static std::string progname;
/// Message - The message to print to standard error.
///
static void PrintAndExit(const std::string &Message, int errcode = 1) {
- cerr << progname << ": " << Message << "\n";
+ errs() << progname << ": " << Message << "\n";
llvm_shutdown();
exit(errcode);
}
std::vector<const char*>::const_iterator I = args.begin(), E = args.end();
for (; I != E; ++I)
if (*I)
- cout << "'" << *I << "'" << " ";
- cout << "\n" << std::flush;
+ outs() << "'" << *I << "'" << " ";
+ outs() << "\n"; outs().flush();
}
/// CopyEnv - This function takes an array of environment variables and makes a
void GenerateBitcode(Module* M, const std::string& FileName) {
if (Verbose)
- cout << "Generating Bitcode To " << FileName << '\n';
+ outs() << "Generating Bitcode To " << FileName << '\n';
// Create the output file.
- std::ios::openmode io_mode = std::ios::out | std::ios::trunc |
- std::ios::binary;
- std::ofstream Out(FileName.c_str(), io_mode);
- if (!Out.good())
- PrintAndExit("error opening '" + FileName + "' for writing!");
+ std::string ErrorInfo;
+ raw_fd_ostream Out(FileName.c_str(), ErrorInfo,
+ raw_fd_ostream::F_Binary);
+ if (!ErrorInfo.empty())
+ PrintAndExit(ErrorInfo);
// Ensure that the bitcode file gets removed from the disk if we get a
// terminating signal.
// Run LLC to convert the bitcode file into assembly code.
std::vector<const char*> args;
args.push_back(llc.c_str());
+ // We will use GCC to assemble the program so set the assembly syntax to AT&T,
+ // regardless of what the target in the bitcode file is.
+ args.push_back("-x86-asm-syntax=att");
args.push_back("-f");
args.push_back("-o");
args.push_back(OutputFilename.c_str());
args.push_back(0);
if (Verbose) {
- cout << "Generating Assembly With: \n";
+ outs() << "Generating Assembly With: \n";
PrintCommand(args);
}
args.push_back(0);
if (Verbose) {
- cout << "Generating C Source With: \n";
+ outs() << "Generating C Source With: \n";
PrintCommand(args);
}
Args.push_back(0);
if (Verbose) {
- cout << "Generating Native Executable With:\n";
+ outs() << "Generating Native Executable With:\n";
PrintCommand(Args);
}
/// bitcode file for the program.
static void EmitShellScript(char **argv) {
if (Verbose)
- cout << "Emitting Shell Script\n";
+ outs() << "Emitting Shell Script\n";
#if defined(_WIN32) || defined(__CYGWIN__)
// Windows doesn't support #!/bin/sh style shell scripts in .exe files. To
// support windows systems, we copy the llvm-stub.exe executable from the
// build tree to the destination file.
std::string ErrMsg;
- sys::Path llvmstub = FindExecutable("llvm-stub.exe", argv[0]);
+ sys::Path llvmstub = FindExecutable("llvm-stub.exe", argv[0],
+ (void *)(intptr_t)&Optimize);
if (llvmstub.isEmpty())
PrintAndExit("Could not find llvm-stub.exe executable!");
#endif
// Output the script to start the program...
- std::ofstream Out2(OutputFilename.c_str());
- if (!Out2.good())
- PrintAndExit("error opening '" + OutputFilename + "' for writing!");
+ std::string ErrorInfo;
+ raw_fd_ostream Out2(OutputFilename.c_str(), ErrorInfo);
+ if (!ErrorInfo.empty())
+ PrintAndExit(ErrorInfo);
Out2 << "#!/bin/sh\n";
// Allow user to setenv LLVMINTERP if lli is not in their PATH.
// on the command line, so that we don't have to do this manually!
for (std::vector<std::string>::iterator i = Libraries.begin(),
e = Libraries.end(); i != e; ++i) {
- sys::Path FullLibraryPath = sys::Path::FindLibrary(*i);
- if (!FullLibraryPath.isEmpty() && FullLibraryPath.isDynamicLibrary())
- Out2 << " -load=" << FullLibraryPath.toString() << " \\\n";
+ // try explicit -L arguments first:
+ sys::Path FullLibraryPath;
+ for (cl::list<std::string>::const_iterator P = LibPaths.begin(),
+ E = LibPaths.end(); P != E; ++P) {
+ FullLibraryPath = *P;
+ FullLibraryPath.appendComponent("lib" + *i);
+ FullLibraryPath.appendSuffix(&(LTDL_SHLIB_EXT[1]));
+ if (!FullLibraryPath.isEmpty()) {
+ if (!FullLibraryPath.isDynamicLibrary()) {
+ // Not a native shared library; mark as invalid
+ FullLibraryPath = sys::Path();
+ } else break;
+ }
+ }
+ if (FullLibraryPath.isEmpty())
+ FullLibraryPath = sys::Path::FindLibrary(*i);
+ if (!FullLibraryPath.isEmpty())
+ Out2 << " -load=" << FullLibraryPath.str() << " \\\n";
}
- Out2 << " $0.bc ${1+\"$@\"}\n";
+ Out2 << " " << BitcodeOutputFilename << " ${1+\"$@\"}\n";
Out2.close();
}
}
}
-// Rightly this should go in a header file but it just seems such a waste.
-namespace llvm {
-extern void Optimize(Module*);
-}
-
int main(int argc, char **argv, char **envp) {
- llvm_shutdown_obj X; // Call llvm_shutdown() on exit.
+ // 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.
try {
// Initial global variable above for convenience printing of program name.
progname = sys::Path(argv[0]).getBasename();
// Parse the command line options
cl::ParseCommandLineOptions(argc, argv, "llvm linker\n");
- sys::PrintStackTraceOnErrorSignal();
// Construct a Linker (now that Verbose is set)
- Linker TheLinker(progname, OutputFilename, Verbose);
+ Linker TheLinker(progname, OutputFilename, Context, Verbose);
// Keep track of the native link items (versus the bitcode items)
Linker::ItemList NativeLinkItems;
#if defined(_WIN32) || defined(__CYGWIN__)
if (!LinkAsLibrary) {
- // Make sure the output executable has an "exe" suffix.
+ // Default to "a.exe" instead of "a.out".
+ if (OutputFilename.getNumOccurrences() == 0)
+ OutputFilename = "a.exe";
+
+ // If there is no suffix add an "exe" one.
sys::Path ExeFile( OutputFilename );
- if (ExeFile.getSuffix() != "exe") {
- if (OutputFilename == "a.out") {
- OutputFilename = "a.exe";
- } else {
- ExeFile.appendSuffix("exe");
- OutputFilename = ExeFile.toString();
- }
+ if (ExeFile.getSuffix() == "") {
+ ExeFile.appendSuffix("exe");
+ OutputFilename = ExeFile.str();
}
}
#endif
// Generate the bitcode for the optimized module.
- std::string RealBitcodeOutput = OutputFilename;
+ // If -b wasn't specified, use the name specified
+ // with -o to construct BitcodeOutputFilename.
+ if (BitcodeOutputFilename.empty()) {
+ BitcodeOutputFilename = OutputFilename;
+ if (!LinkAsLibrary) BitcodeOutputFilename += ".bc";
+ }
- if (!LinkAsLibrary) RealBitcodeOutput += ".bc";
- GenerateBitcode(Composite.get(), RealBitcodeOutput);
+ GenerateBitcode(Composite.get(), BitcodeOutputFilename);
// If we are not linking a library, generate either a native executable
// or a JIT shell script, depending upon what the user wants.
const char* args[4];
args[0] = I->c_str();
- args[1] = RealBitcodeOutput.c_str();
+ args[1] = BitcodeOutputFilename.c_str();
args[2] = tmp_output.c_str();
args[3] = 0;
if (0 == sys::Program::ExecuteAndWait(prog, args, 0,0,0,0, &ErrMsg)) {
if (tmp_output.isBitcodeFile() || tmp_output.isBitcodeFile()) {
- sys::Path target(RealBitcodeOutput);
+ sys::Path target(BitcodeOutputFilename);
target.eraseFromDisk();
if (tmp_output.renamePathOnDisk(target, &ErrMsg))
PrintAndExit(ErrMsg, 2);
sys::RemoveFileOnSignal(sys::Path(OutputFilename));
// Determine the locations of the llc and gcc programs.
- sys::Path llc = FindExecutable("llc", argv[0]);
+ sys::Path llc = FindExecutable("llc", argv[0],
+ (void *)(intptr_t)&Optimize);
if (llc.isEmpty())
PrintAndExit("Failed to find llc");
- sys::Path gcc = FindExecutable("gcc", argv[0]);
+ sys::Path gcc = sys::Program::FindProgramByName("gcc");
if (gcc.isEmpty())
PrintAndExit("Failed to find gcc");
// Generate an assembly language file for the bitcode.
std::string ErrMsg;
- if (0 != GenerateAssembly(AssemblyFile.toString(), RealBitcodeOutput,
+ if (0 != GenerateAssembly(AssemblyFile.str(), BitcodeOutputFilename,
llc, ErrMsg))
PrintAndExit(ErrMsg);
- if (0 != GenerateNative(OutputFilename, AssemblyFile.toString(),
+ if (0 != GenerateNative(OutputFilename, AssemblyFile.str(),
NativeLinkItems, gcc, envp, ErrMsg))
PrintAndExit(ErrMsg);
sys::RemoveFileOnSignal(sys::Path(OutputFilename));
// Determine the locations of the llc and gcc programs.
- sys::Path llc = FindExecutable("llc", argv[0]);
+ sys::Path llc = FindExecutable("llc", argv[0],
+ (void *)(intptr_t)&Optimize);
if (llc.isEmpty())
PrintAndExit("Failed to find llc");
- sys::Path gcc = FindExecutable("gcc", argv[0]);
+ sys::Path gcc = sys::Program::FindProgramByName("gcc");
if (gcc.isEmpty())
PrintAndExit("Failed to find gcc");
// Generate an assembly language file for the bitcode.
std::string ErrMsg;
- if (0 != GenerateCFile(
- CFile.toString(), RealBitcodeOutput, llc, ErrMsg))
+ if (GenerateCFile(CFile.str(), BitcodeOutputFilename, llc, ErrMsg))
PrintAndExit(ErrMsg);
- if (0 != GenerateNative(OutputFilename, CFile.toString(),
- NativeLinkItems, gcc, envp, ErrMsg))
+ if (GenerateNative(OutputFilename, CFile.str(),
+ NativeLinkItems, gcc, envp, ErrMsg))
PrintAndExit(ErrMsg);
// Remove the assembly language file.
PrintAndExit(ErrMsg);
// Make the bitcode file readable and directly executable in LLEE as well
- if (sys::Path(RealBitcodeOutput).makeExecutableOnDisk(&ErrMsg))
+ if (sys::Path(BitcodeOutputFilename).makeExecutableOnDisk(&ErrMsg))
PrintAndExit(ErrMsg);
- if (sys::Path(RealBitcodeOutput).makeReadableOnDisk(&ErrMsg))
+ if (sys::Path(BitcodeOutputFilename).makeReadableOnDisk(&ErrMsg))
PrintAndExit(ErrMsg);
}
} catch (const std::string& msg) {
projects / oota-llvm.git / blobdiff