+++ /dev/null
-//===- llvm-ld.cpp - LLVM 'ld' compatible linker --------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This utility is intended to be compatible with GCC, and follows standard
-// system 'ld' conventions. As such, the default output file is ./a.out.
-// 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.
-//
-// 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,
-// I'm not too worried about this.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/LinkAllVMCore.h"
-#include "llvm/Linker.h"
-#include "llvm/LLVMContext.h"
-#include "llvm/Support/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/Support/CommandLine.h"
-#include "llvm/Support/FileUtilities.h"
-#include "llvm/Support/ManagedStatic.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/PrettyStackTrace.h"
-#include "llvm/Support/SystemUtils.h"
-#include "llvm/Support/ToolOutputFile.h"
-#include "llvm/Support/Signals.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>"));
-
-static cl::opt<std::string> OutputFilename("o", cl::init("a.out"),
- 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::list<std::string> LibPaths("L", cl::Prefix,
- cl::desc("Specify a library search path"),
- cl::value_desc("directory"));
-
-static cl::list<std::string> FrameworkPaths("F", cl::Prefix,
- cl::desc("Specify a framework search path"),
- cl::value_desc("directory"));
-
-static cl::list<std::string> Libraries("l", cl::Prefix,
- cl::desc("Specify libraries to link to"),
- cl::value_desc("library prefix"));
-
-static cl::list<std::string> Frameworks("framework",
- cl::desc("Specify frameworks to link to"),
- cl::value_desc("framework"));
-
-// Options to control the linking, optimization, and code gen processes
-static cl::opt<bool> LinkAsLibrary("link-as-library",
- cl::desc("Link the .bc files together as a library, not an executable"));
-
-static cl::alias Relink("r", cl::aliasopt(LinkAsLibrary),
- cl::desc("Alias for -link-as-library"));
-
-static cl::opt<bool> Native("native",
- cl::desc("Generate a native binary instead of a shell script"));
-
-static cl::opt<bool>NativeCBE("native-cbe",
- cl::desc("Generate a native binary with the C backend and GCC"));
-
-static cl::list<std::string> PostLinkOpts("post-link-opts",
- cl::value_desc("path"),
- cl::desc("Run one or more optimization programs after linking"));
-
-static cl::list<std::string> XLinker("Xlinker", cl::value_desc("option"),
- cl::desc("Pass options to the system linker"));
-
-// Compatibility options that llvm-ld ignores but are supported for
-// compatibility with LD
-static cl::opt<std::string> CO3("soname", cl::Hidden,
- cl::desc("Compatibility option: ignored"));
-
-static cl::opt<std::string> CO4("version-script", cl::Hidden,
- cl::desc("Compatibility option: ignored"));
-
-static cl::opt<bool> CO5("eh-frame-hdr", cl::Hidden,
- cl::desc("Compatibility option: ignored"));
-
-static cl::opt<std::string> CO6("h", cl::Hidden,
- cl::desc("Compatibility option: ignored"));
-
-static cl::opt<bool> CO7("start-group", cl::Hidden,
- cl::desc("Compatibility option: ignored"));
-
-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;
-
-/// FileRemover objects to clean up output files in the event of an error.
-static FileRemover OutputRemover;
-static FileRemover BitcodeOutputRemover;
-
-/// PrintAndExit - Prints a message to standard error and exits with error code
-///
-/// Inputs:
-/// Message - The message to print to standard error.
-///
-static void PrintAndExit(const std::string &Message, Module *M, int errcode = 1) {
- errs() << progname << ": " << Message << "\n";
- delete M;
- llvm_shutdown();
- exit(errcode);
-}
-
-static void PrintCommand(const std::vector<const char*> &args) {
- std::vector<const char*>::const_iterator I = args.begin(), E = args.end();
- for (; I != E; ++I)
- if (*I)
- errs() << "'" << *I << "'" << " ";
- errs() << "\n";
-}
-
-/// CopyEnv - This function takes an array of environment variables and makes a
-/// copy of it. This copy can then be manipulated any way the caller likes
-/// without affecting the process's real environment.
-///
-/// Inputs:
-/// envp - An array of C strings containing an environment.
-///
-/// Return value:
-/// NULL - An error occurred.
-///
-/// Otherwise, a pointer to a new array of C strings is returned. Every string
-/// in the array is a duplicate of the one in the original array (i.e. we do
-/// not copy the char *'s from one array to another).
-///
-static char ** CopyEnv(char ** const envp) {
- // Count the number of entries in the old list;
- unsigned entries; // The number of entries in the old environment list
- for (entries = 0; envp[entries] != NULL; entries++)
- /*empty*/;
-
- // Add one more entry for the NULL pointer that ends the list.
- ++entries;
-
- // If there are no entries at all, just return NULL.
- if (entries == 0)
- return NULL;
-
- // Allocate a new environment list.
- char **newenv = new char* [entries];
- if (newenv == NULL)
- return NULL;
-
- // Make a copy of the list. Don't forget the NULL that ends the list.
- entries = 0;
- while (envp[entries] != NULL) {
- size_t len = strlen(envp[entries]) + 1;
- newenv[entries] = new char[len];
- memcpy(newenv[entries], envp[entries], len);
- ++entries;
- }
- newenv[entries] = NULL;
-
- return newenv;
-}
-
-
-/// RemoveEnv - Remove the specified environment variable from the environment
-/// array.
-///
-/// Inputs:
-/// name - The name of the variable to remove. It cannot be NULL.
-/// envp - The array of environment variables. It cannot be NULL.
-///
-/// Notes:
-/// This is mainly done because functions to remove items from the environment
-/// are not available across all platforms. In particular, Solaris does not
-/// seem to have an unsetenv() function or a setenv() function (or they are
-/// undocumented if they do exist).
-///
-static void RemoveEnv(const char * name, char ** const envp) {
- for (unsigned index=0; envp[index] != NULL; index++) {
- // Find the first equals sign in the array and make it an EOS character.
- char *p = strchr (envp[index], '=');
- if (p == NULL)
- continue;
- else
- *p = '\0';
-
- // Compare the two strings. If they are equal, zap this string.
- // Otherwise, restore it.
- if (!strcmp(name, envp[index]))
- *envp[index] = '\0';
- else
- *p = '=';
- }
-
- return;
-}
-
-/// GenerateBitcode - generates a bitcode file from the module provided
-void GenerateBitcode(Module* M, const std::string& FileName) {
-
- if (Verbose)
- errs() << "Generating Bitcode To " << FileName << '\n';
-
- // Create the output file.
- std::string ErrorInfo;
- tool_output_file Out(FileName.c_str(), ErrorInfo,
- raw_fd_ostream::F_Binary);
- if (!ErrorInfo.empty()) {
- PrintAndExit(ErrorInfo, M);
- return;
- }
-
- // Write it out
- WriteBitcodeToFile(M, Out.os());
- Out.keep();
-}
-
-/// GenerateAssembly - generates a native assembly language source file from the
-/// specified bitcode file.
-///
-/// Inputs:
-/// InputFilename - The name of the input bitcode file.
-/// OutputFilename - The name of the file to generate.
-/// llc - The pathname to use for LLC.
-/// envp - The environment to use when running LLC.
-///
-/// Return non-zero value on error.
-///
-static int GenerateAssembly(const std::string &OutputFilename,
- const std::string &InputFilename,
- const sys::Path &llc,
- std::string &ErrMsg ) {
- // 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("-o");
- args.push_back(OutputFilename.c_str());
- args.push_back(InputFilename.c_str());
- args.push_back(0);
-
- if (Verbose) {
- errs() << "Generating Assembly With: \n";
- PrintCommand(args);
- }
-
- return sys::Program::ExecuteAndWait(llc, &args[0], 0, 0, 0, 0, &ErrMsg);
-}
-
-/// GenerateCFile - generates a C source file from the specified bitcode file.
-static int GenerateCFile(const std::string &OutputFile,
- const std::string &InputFile,
- const sys::Path &llc,
- std::string& ErrMsg) {
- // Run LLC to convert the bitcode file into C.
- std::vector<const char*> args;
- args.push_back(llc.c_str());
- args.push_back("-march=c");
- args.push_back("-o");
- args.push_back(OutputFile.c_str());
- args.push_back(InputFile.c_str());
- args.push_back(0);
-
- if (Verbose) {
- errs() << "Generating C Source With: \n";
- PrintCommand(args);
- }
-
- return sys::Program::ExecuteAndWait(llc, &args[0], 0, 0, 0, 0, &ErrMsg);
-}
-
-/// GenerateNative - generates a native object file from the
-/// specified bitcode file.
-///
-/// Inputs:
-/// InputFilename - The name of the input bitcode file.
-/// OutputFilename - The name of the file to generate.
-/// NativeLinkItems - The native libraries, files, code with which to link
-/// LibPaths - The list of directories in which to find libraries.
-/// FrameworksPaths - The list of directories in which to find frameworks.
-/// Frameworks - The list of frameworks (dynamic libraries)
-/// gcc - The pathname to use for GGC.
-/// envp - A copy of the process's current environment.
-///
-/// Outputs:
-/// None.
-///
-/// Returns non-zero value on error.
-///
-static int GenerateNative(const std::string &OutputFilename,
- const std::string &InputFilename,
- const Linker::ItemList &LinkItems,
- const sys::Path &gcc, char ** const envp,
- std::string& ErrMsg) {
- // Remove these environment variables from the environment of the
- // programs that we will execute. It appears that GCC sets these
- // environment variables so that the programs it uses can configure
- // themselves identically.
- //
- // However, when we invoke GCC below, we want it to use its normal
- // configuration. Hence, we must sanitize its environment.
- char ** clean_env = CopyEnv(envp);
- if (clean_env == NULL)
- return 1;
- RemoveEnv("LIBRARY_PATH", clean_env);
- RemoveEnv("COLLECT_GCC_OPTIONS", clean_env);
- RemoveEnv("GCC_EXEC_PREFIX", clean_env);
- RemoveEnv("COMPILER_PATH", clean_env);
- RemoveEnv("COLLECT_GCC", clean_env);
-
-
- // Run GCC to assemble and link the program into native code.
- //
- // Note:
- // We can't just assemble and link the file with the system assembler
- // and linker because we don't know where to put the _start symbol.
- // GCC mysteriously knows how to do it.
- std::vector<std::string> args;
- args.push_back(gcc.c_str());
- args.push_back("-fno-strict-aliasing");
- args.push_back("-O3");
- args.push_back("-o");
- args.push_back(OutputFilename);
- args.push_back(InputFilename);
-
- // Add in the library and framework paths
- for (unsigned index = 0; index < LibPaths.size(); index++) {
- args.push_back("-L" + LibPaths[index]);
- }
- for (unsigned index = 0; index < FrameworkPaths.size(); index++) {
- args.push_back("-F" + FrameworkPaths[index]);
- }
-
- // Add the requested options
- for (unsigned index = 0; index < XLinker.size(); index++)
- args.push_back(XLinker[index]);
-
- // Add in the libraries to link.
- for (unsigned index = 0; index < LinkItems.size(); index++)
- if (LinkItems[index].first != "crtend") {
- if (LinkItems[index].second)
- args.push_back("-l" + LinkItems[index].first);
- else
- args.push_back(LinkItems[index].first);
- }
-
- // Add in frameworks to link.
- for (unsigned index = 0; index < Frameworks.size(); index++) {
- args.push_back("-framework");
- args.push_back(Frameworks[index]);
- }
-
- // Now that "args" owns all the std::strings for the arguments, call the c_str
- // method to get the underlying string array. We do this game so that the
- // std::string array is guaranteed to outlive the const char* array.
- std::vector<const char *> Args;
- for (unsigned i = 0, e = args.size(); i != e; ++i)
- Args.push_back(args[i].c_str());
- Args.push_back(0);
-
- if (Verbose) {
- errs() << "Generating Native Executable With:\n";
- PrintCommand(Args);
- }
-
- // Run the compiler to assembly and link together the program.
- int R = sys::Program::ExecuteAndWait(
- gcc, &Args[0], const_cast<const char **>(clean_env), 0, 0, 0, &ErrMsg);
- delete [] clean_env;
- return R;
-}
-
-/// EmitShellScript - Output the wrapper file that invokes the JIT on the LLVM
-/// bitcode file for the program.
-static void EmitShellScript(char **argv, Module *M) {
- if (Verbose)
- errs() << "Emitting Shell Script\n";
-#if defined(_WIN32)
- // 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 = PrependMainExecutablePath("llvm-stub", argv[0],
- (void *)(intptr_t)&Optimize);
- if (llvmstub.isEmpty())
- PrintAndExit("Could not find llvm-stub.exe executable!", M);
-
- if (0 != sys::CopyFile(sys::Path(OutputFilename), llvmstub, &ErrMsg))
- PrintAndExit(ErrMsg, M);
-
- return;
-#else
-
- // Output the script to start the program...
- std::string ErrorInfo;
- tool_output_file Out2(OutputFilename.c_str(), ErrorInfo);
- if (!ErrorInfo.empty())
- PrintAndExit(ErrorInfo, M);
-
- Out2.os() << "#!/bin/sh\n";
- // Allow user to setenv LLVMINTERP if lli is not in their PATH.
- Out2.os() << "lli=${LLVMINTERP-lli}\n";
- Out2.os() << "exec $lli \\\n";
- // gcc accepts -l<lib> and implicitly searches /lib and /usr/lib.
- LibPaths.push_back("/lib");
- LibPaths.push_back("/usr/lib");
- LibPaths.push_back("/usr/X11R6/lib");
- // We don't need to link in libc! In fact, /usr/lib/libc.so may not be a
- // shared object at all! See RH 8: plain text.
- std::vector<std::string>::iterator libc =
- std::find(Libraries.begin(), Libraries.end(), "c");
- if (libc != Libraries.end()) Libraries.erase(libc);
- // List all the shared object (native) libraries this executable will need
- // 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) {
- // 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(sys::Path::GetDLLSuffix());
- 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.os() << " -load=" << FullLibraryPath.str() << " \\\n";
- }
- Out2.os() << " " << BitcodeOutputFilename << " ${1+\"$@\"}\n";
- Out2.keep();
-#endif
-}
-
-// BuildLinkItems -- This function generates a LinkItemList for the LinkItems
-// linker function by combining the Files and Libraries in the order they were
-// declared on the command line.
-static void BuildLinkItems(
- Linker::ItemList& Items,
- const cl::list<std::string>& Files,
- const cl::list<std::string>& Libraries) {
-
- // Build the list of linkage items for LinkItems.
-
- cl::list<std::string>::const_iterator fileIt = Files.begin();
- cl::list<std::string>::const_iterator libIt = Libraries.begin();
-
- int libPos = -1, filePos = -1;
- while ( libIt != Libraries.end() || fileIt != Files.end() ) {
- if (libIt != Libraries.end())
- libPos = Libraries.getPosition(libIt - Libraries.begin());
- else
- libPos = -1;
- if (fileIt != Files.end())
- filePos = Files.getPosition(fileIt - Files.begin());
- else
- filePos = -1;
-
- if (filePos != -1 && (libPos == -1 || filePos < libPos)) {
- // Add a source file
- Items.push_back(std::make_pair(*fileIt++, false));
- } else if (libPos != -1 && (filePos == -1 || libPos < filePos)) {
- // Add a library
- Items.push_back(std::make_pair(*libIt++, true));
- }
- }
-}
-
-int main(int argc, char **argv, char **envp) {
- // 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.
-
- // Initialize passes
- PassRegistry &Registry = *PassRegistry::getPassRegistry();
- initializeCore(Registry);
- initializeScalarOpts(Registry);
- initializeIPO(Registry);
- initializeAnalysis(Registry);
- initializeIPA(Registry);
- initializeTransformUtils(Registry);
- initializeInstCombine(Registry);
- initializeTarget(Registry);
-
- // Initial global variable above for convenience printing of program name.
- progname = sys::path::stem(argv[0]);
-
- // Parse the command line options
- cl::ParseCommandLineOptions(argc, argv, "llvm linker\n");
-
-#if defined(_WIN32) || defined(__CYGWIN__)
- if (!LinkAsLibrary) {
- // Default to "a.exe" instead of "a.out".
- if (OutputFilename.getNumOccurrences() == 0)
- OutputFilename = "a.exe";
-
- // If there is no suffix add an "exe" one.
- if (sys::path::extension(OutputFilename).empty())
- OutputFilename.append(".exe");
- }
-#endif
-
- // Generate the bitcode for the optimized module.
- // If -b wasn't specified, use the name specified
- // with -o to construct BitcodeOutputFilename.
- if (BitcodeOutputFilename.empty()) {
- BitcodeOutputFilename = OutputFilename;
- if (!LinkAsLibrary) BitcodeOutputFilename += ".bc";
- }
-
- // Arrange for the bitcode output file to be deleted on any errors.
- BitcodeOutputRemover.setFile(BitcodeOutputFilename);
- sys::RemoveFileOnSignal(sys::Path(BitcodeOutputFilename));
-
- // Arrange for the output file to be deleted on any errors.
- if (!LinkAsLibrary) {
- OutputRemover.setFile(OutputFilename);
- sys::RemoveFileOnSignal(sys::Path(OutputFilename));
- }
-
- // Construct a Linker (now that Verbose is set)
- Linker TheLinker(progname, OutputFilename, Context, Verbose);
-
- // Keep track of the native link items (versus the bitcode items)
- Linker::ItemList NativeLinkItems;
-
- // Add library paths to the linker
- TheLinker.addPaths(LibPaths);
- TheLinker.addSystemPaths();
-
- // Remove any consecutive duplicates of the same library...
- Libraries.erase(std::unique(Libraries.begin(), Libraries.end()),
- Libraries.end());
-
- if (LinkAsLibrary) {
- std::vector<sys::Path> Files;
- for (unsigned i = 0; i < InputFilenames.size(); ++i )
- Files.push_back(sys::Path(InputFilenames[i]));
- if (TheLinker.LinkInFiles(Files))
- return 1; // Error already printed
-
- // The libraries aren't linked in but are noted as "dependent" in the
- // module.
- for (cl::list<std::string>::const_iterator I = Libraries.begin(),
- E = Libraries.end(); I != E ; ++I) {
- TheLinker.getModule()->addLibrary(*I);
- }
- } else {
- // Build a list of the items from our command line
- Linker::ItemList Items;
- BuildLinkItems(Items, InputFilenames, Libraries);
-
- // Link all the items together
- if (TheLinker.LinkInItems(Items, NativeLinkItems) )
- return 1; // Error already printed
- }
-
- std::auto_ptr<Module> Composite(TheLinker.releaseModule());
-
- // Optimize the module
- Optimize(Composite.get());
-
- // Generate the bitcode output.
- 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.
- if (!LinkAsLibrary) {
- // If the user wants to run a post-link optimization, run it now.
- if (!PostLinkOpts.empty()) {
- std::vector<std::string> opts = PostLinkOpts;
- for (std::vector<std::string>::iterator I = opts.begin(),
- E = opts.end(); I != E; ++I) {
- sys::Path prog(*I);
- if (!prog.canExecute()) {
- prog = sys::Program::FindProgramByName(*I);
- if (prog.isEmpty())
- PrintAndExit(std::string("Optimization program '") + *I +
- "' is not found or not executable.", Composite.get());
- }
- // Get the program arguments
- sys::Path tmp_output("opt_result");
- std::string ErrMsg;
- if (tmp_output.createTemporaryFileOnDisk(true, &ErrMsg))
- PrintAndExit(ErrMsg, Composite.get());
-
- const char* args[4];
- args[0] = I->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()) {
- sys::Path target(BitcodeOutputFilename);
- target.eraseFromDisk();
- if (tmp_output.renamePathOnDisk(target, &ErrMsg))
- PrintAndExit(ErrMsg, Composite.get(), 2);
- } else
- PrintAndExit("Post-link optimization output is not bitcode",
- Composite.get());
- } else {
- PrintAndExit(ErrMsg, Composite.get());
- }
- }
- }
-
- // If the user wants to generate a native executable, compile it from the
- // bitcode file.
- //
- // Otherwise, create a script that will run the bitcode through the JIT.
- if (Native) {
- // Name of the Assembly Language output file
- sys::Path AssemblyFile ( OutputFilename);
- AssemblyFile.appendSuffix("s");
-
- // Mark the output files for removal.
- FileRemover AssemblyFileRemover(AssemblyFile.str());
- sys::RemoveFileOnSignal(AssemblyFile);
-
- // Determine the locations of the llc and gcc programs.
- sys::Path llc = PrependMainExecutablePath("llc", argv[0],
- (void *)(intptr_t)&Optimize);
- if (llc.isEmpty())
- PrintAndExit("Failed to find llc", Composite.get());
-
- sys::Path gcc = sys::Program::FindProgramByName("gcc");
- if (gcc.isEmpty())
- PrintAndExit("Failed to find gcc", Composite.get());
-
- // Generate an assembly language file for the bitcode.
- std::string ErrMsg;
- if (0 != GenerateAssembly(AssemblyFile.str(), BitcodeOutputFilename,
- llc, ErrMsg))
- PrintAndExit(ErrMsg, Composite.get());
-
- if (0 != GenerateNative(OutputFilename, AssemblyFile.str(),
- NativeLinkItems, gcc, envp, ErrMsg))
- PrintAndExit(ErrMsg, Composite.get());
- } else if (NativeCBE) {
- sys::Path CFile (OutputFilename);
- CFile.appendSuffix("cbe.c");
-
- // Mark the output files for removal.
- FileRemover CFileRemover(CFile.str());
- sys::RemoveFileOnSignal(CFile);
-
- // Determine the locations of the llc and gcc programs.
- sys::Path llc = PrependMainExecutablePath("llc", argv[0],
- (void *)(intptr_t)&Optimize);
- if (llc.isEmpty())
- PrintAndExit("Failed to find llc", Composite.get());
-
- sys::Path gcc = sys::Program::FindProgramByName("gcc");
- if (gcc.isEmpty())
- PrintAndExit("Failed to find gcc", Composite.get());
-
- // Generate an assembly language file for the bitcode.
- std::string ErrMsg;
- if (GenerateCFile(CFile.str(), BitcodeOutputFilename, llc, ErrMsg))
- PrintAndExit(ErrMsg, Composite.get());
-
- if (GenerateNative(OutputFilename, CFile.str(),
- NativeLinkItems, gcc, envp, ErrMsg))
- PrintAndExit(ErrMsg, Composite.get());
- } else {
- EmitShellScript(argv, Composite.get());
- }
-
- // Make the script executable...
- std::string ErrMsg;
- if (sys::Path(OutputFilename).makeExecutableOnDisk(&ErrMsg))
- PrintAndExit(ErrMsg, Composite.get());
-
- // Make the bitcode file readable and directly executable in LLEE as well
- if (sys::Path(BitcodeOutputFilename).makeExecutableOnDisk(&ErrMsg))
- PrintAndExit(ErrMsg, Composite.get());
-
- if (sys::Path(BitcodeOutputFilename).makeReadableOnDisk(&ErrMsg))
- PrintAndExit(ErrMsg, Composite.get());
- }
-
- // Operations which may fail are now complete.
- BitcodeOutputRemover.releaseFile();
- if (!LinkAsLibrary)
- OutputRemover.releaseFile();
-
- // Graceful exit
- return 0;
-}
projects / oota-llvm.git / blobdiff