Mercurial > projects > ldc
view gen/linker.cpp @ 1650:40bd4a0d4870
Update to work with LLVM 2.7.
Removed use of dyn_cast, llvm no compiles
without exceptions and rtti by
default. We do need exceptions for the libconfig stuff, but rtti isn't
necessary (anymore).
Debug info needs to be rewritten, as in LLVM 2.7 the format has
completely changed. To have something to look at while rewriting, the
old code has been wrapped inside #ifndef DISABLE_DEBUG_INFO , this means
that you have to define this to compile at the moment.
Updated tango 0.99.9 patch to include updated EH runtime code, which is
needed for LLVM 2.7 as well.
author | Tomas Lindquist Olsen |
---|---|
date | Wed, 19 May 2010 12:42:32 +0200 |
parents | a60e7d1ce3ee |
children |
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#include "gen/linker.h" #include "gen/llvm.h" #include "llvm/Linker.h" #include "llvm/System/Program.h" #if _WIN32 #include "llvm/Support/SystemUtils.h" #endif #include "root.h" #include "mars.h" #include "module.h" #define NO_COUT_LOGGER #include "gen/logger.h" #include "gen/cl_options.h" #include "gen/optimizer.h" #include "gen/programs.h" ////////////////////////////////////////////////////////////////////////////// // Is this useful? llvm::cl::opt<bool> quiet("quiet", llvm::cl::desc("Suppress output of link command (unless -v is also passed)"), llvm::cl::Hidden, llvm::cl::ZeroOrMore, llvm::cl::init(true)); ////////////////////////////////////////////////////////////////////////////// typedef std::vector<llvm::Module*> Module_vector; void linkModules(llvm::Module* dst, const Module_vector& MV) { if (MV.empty()) return; llvm::Linker linker("ldc", dst); std::string err; for (Module_vector::const_iterator i=MV.begin(); i!=MV.end(); ++i) { if (!linker.LinkInModule(*i, &err)) { error("%s", err.c_str()); fatal(); } } } ////////////////////////////////////////////////////////////////////////////// static llvm::sys::Path gExePath; int linkExecutable(const char* argv0) { Logger::println("*** Linking executable ***"); // error string std::string errstr; // find the llvm-ld program llvm::sys::Path ldpath = llvm::sys::Program::FindProgramByName("llvm-ld"); if (ldpath.isEmpty()) { ldpath.set("llvm-ld"); } // build arguments std::vector<const char*> args; // first the program name ?? args.push_back("llvm-ld"); // output filename std::string exestr; if (global.params.exefile) { // explicit exestr = global.params.exefile; } else { // inferred // try root module name if (Module::rootModule) exestr = Module::rootModule->toChars(); else exestr = "a.out"; } if (global.params.os == OSWindows && !(exestr.substr(exestr.length()-4) == ".exe")) exestr.append(".exe"); std::string outopt = "-o=" + exestr; args.push_back(outopt.c_str()); // set the global gExePath gExePath.set(exestr); assert(gExePath.isValid()); // create path to exe llvm::sys::Path exedir(gExePath); exedir.set(gExePath.getDirname()); if (!exedir.exists()) { exedir.createDirectoryOnDisk(true, &errstr); if (!errstr.empty()) { error("failed to create path to linking output: %s\n%s", exedir.c_str(), errstr.c_str()); fatal(); } } // strip debug info if (!global.params.symdebug) args.push_back("-strip-debug"); // optimization level if (!optimize()) args.push_back("-disable-opt"); else { const char* s = 0; switch(optLevel()) { case 0: args.push_back("-disable-opt"); break; case 1: args.push_back("-globaldce"); args.push_back("-disable-opt"); args.push_back("-globaldce"); args.push_back("-mem2reg"); case 2: case 3: case 4: case 5: // use default optimization break; default: assert(0); } } // inlining if (!(global.params.useInline || doInline())) { args.push_back("-disable-inlining"); } // additional linker switches for (int i = 0; i < global.params.linkswitches->dim; i++) { char *p = (char *)global.params.linkswitches->data[i]; args.push_back(p); } // native please args.push_back("-native"); // user libs for (int i = 0; i < global.params.libfiles->dim; i++) { char *p = (char *)global.params.libfiles->data[i]; args.push_back(p); } // default libs switch(global.params.os) { case OSLinux: case OSMacOSX: args.push_back("-ldl"); case OSFreeBSD: args.push_back("-lpthread"); args.push_back("-lm"); break; case OSWindows: // FIXME: I'd assume kernel32 etc break; } // object files for (int i = 0; i < global.params.objfiles->dim; i++) { char *p = (char *)global.params.objfiles->data[i]; args.push_back(p); } // print link command? if (!quiet || global.params.verbose) { // Print it for (int i = 0; i < args.size(); i++) printf("%s ", args[i]); printf("\n"); fflush(stdout); } // terminate args list args.push_back(NULL); // try to call linker!!! if (int status = llvm::sys::Program::ExecuteAndWait(ldpath, &args[0], NULL, NULL, 0,0, &errstr)) { error("linking failed:\nstatus: %d", status); if (!errstr.empty()) error("message: %s", errstr.c_str()); return status; } return 0; } ////////////////////////////////////////////////////////////////////////////// int linkObjToExecutable(const char* argv0) { Logger::println("*** Linking executable ***"); // error string std::string errstr; // find gcc for linking llvm::sys::Path gcc = getGcc(); // get a string version for argv[0] const char* gccStr = gcc.c_str(); // build arguments std::vector<const char*> args; // first the program name ?? args.push_back(gccStr); // object files for (int i = 0; i < global.params.objfiles->dim; i++) { char *p = (char *)global.params.objfiles->data[i]; args.push_back(p); } // output filename std::string exestr; if (global.params.exefile) { // explicit exestr = global.params.exefile; } else { // inferred // try root module name if (Module::rootModule) exestr = Module::rootModule->toChars(); else if (global.params.objfiles->dim) exestr = FileName::removeExt((char*)global.params.objfiles->data[0]); else exestr = "a.out"; } if (global.params.os == OSWindows && !(exestr.rfind(".exe") == exestr.length()-4)) exestr.append(".exe"); args.push_back("-o"); args.push_back(exestr.c_str()); // set the global gExePath gExePath.set(exestr); assert(gExePath.isValid()); // create path to exe llvm::sys::Path exedir(gExePath); exedir.set(gExePath.getDirname()); if (!exedir.exists()) { exedir.createDirectoryOnDisk(true, &errstr); if (!errstr.empty()) { error("failed to create path to linking output: %s\n%s", exedir.c_str(), errstr.c_str()); fatal(); } } // additional linker switches for (int i = 0; i < global.params.linkswitches->dim; i++) { char *p = (char *)global.params.linkswitches->data[i]; args.push_back(p); } // user libs for (int i = 0; i < global.params.libfiles->dim; i++) { char *p = (char *)global.params.libfiles->data[i]; args.push_back(p); } // default libs switch(global.params.os) { case OSLinux: case OSMacOSX: args.push_back("-ldl"); // fallthrough case OSFreeBSD: args.push_back("-lpthread"); args.push_back("-lm"); break; case OSSolaris: args.push_back("-lm"); args.push_back("-lumem"); // solaris TODO break; case OSWindows: // FIXME: I'd assume kernel32 etc break; } //FIXME: enforce 64 bit if (global.params.is64bit) args.push_back("-m64"); else // Assume 32-bit? args.push_back("-m32"); // print link command? if (!quiet || global.params.verbose) { // Print it for (int i = 0; i < args.size(); i++) printf("%s ", args[i]); printf("\n"); fflush(stdout); } Logger::println("Linking with: "); std::vector<const char*>::const_iterator I = args.begin(), E = args.end(); Stream logstr = Logger::cout(); for (; I != E; ++I) if (*I) logstr << "'" << *I << "'" << " "; logstr << "\n"; // FIXME where's flush ? // terminate args list args.push_back(NULL); // try to call linker if (int status = llvm::sys::Program::ExecuteAndWait(gcc, &args[0], NULL, NULL, 0,0, &errstr)) { error("linking failed:\nstatus: %d", status); if (!errstr.empty()) error("message: %s", errstr.c_str()); return status; } return 0; } ////////////////////////////////////////////////////////////////////////////// void deleteExecutable() { if (!gExePath.isEmpty()) { assert(gExePath.isValid()); assert(!gExePath.isDirectory()); gExePath.eraseFromDisk(false); } } ////////////////////////////////////////////////////////////////////////////// int runExecutable() { assert(!gExePath.isEmpty()); assert(gExePath.isValid()); // build arguments std::vector<const char*> args; // args[0] should be the name of the executable args.push_back(gExePath.c_str()); // Skip first argument to -run; it's a D source file. for (size_t i = 1, length = opts::runargs.size(); i < length; i++) { args.push_back(opts::runargs[i].c_str()); } // terminate args list args.push_back(NULL); // try to call linker!!! std::string errstr; int status = llvm::sys::Program::ExecuteAndWait(gExePath, &args[0], NULL, NULL, 0,0, &errstr); if (status < 0) { error("program received signal %d (%s)", -status, strsignal(-status)); return -status; } if (!errstr.empty()) { error("failed to execute program"); if (!errstr.empty()) error("error message: %s", errstr.c_str()); fatal(); } return status; }