Mercurial > projects > ldc
view gen/linker.cpp @ 291:068cb3c60afb trunk
[svn r312] Changed assert codegen to insert an unreachable terminator after the call to the assert function, which currently calls abort().
Changed array comparison runtime support to pass the array typeinfo instead of the element typeinfo. This allows a cleaner and faster implementation.
author | lindquist |
---|---|
date | Sat, 21 Jun 2008 21:16:26 +0200 |
parents | 30941d8ee320 |
children | 0baca2feb554 |
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#include "gen/llvm.h" #include "llvm/Linker.h" #include "llvm/System/Program.h" #include "root.h" #include "mars.h" #include "module.h" #define NO_COUT_LOGGER #include "gen/logger.h" ////////////////////////////////////////////////////////////////////////////// typedef std::vector<llvm::Module*> Module_vector; void linkModules(llvm::Module* dst, const Module_vector& MV) { if (MV.empty()) return; llvm::Linker linker("llvmdc", 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() { 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()) { error("linker program not found"); fatal(); } // 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.isWindows) 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()); exedir.createDirectoryOnDisk(true, &errstr); if (!errstr.empty()) { error("failed to create path to linking output\n%s", errstr.c_str()); fatal(); } // strip debug info if (!global.params.symdebug) args.push_back("-strip-debug"); // optimization level if (!global.params.optimize) args.push_back("-disable-opt"); else { const char* s = 0; switch(global.params.optimizeLevel) { case 0: s = "-O0"; break; case 1: s = "-O1"; break; case 2: s = "-O2"; break; case 3: s = "-O3"; break; case 4: s = "-O4"; break; case 5: s = "-O5"; break; default: assert(0); } args.push_back(s); } // inlining if (!(global.params.useInline || global.params.llvmInline)) { 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 args.push_back("-ltango-base-c-llvmdc"); args.push_back("-lpthread"); args.push_back("-ldl"); args.push_back("-lm"); // object files for (int i = 0; i < global.params.objfiles->dim; i++) { char *p = (char *)global.params.objfiles->data[i]; args.push_back(p); } // runtime library // must be linked in last to null terminate the moduleinfo appending list std::string runtime_path(global.params.runtimePath); if (*runtime_path.rbegin() != '/') runtime_path.append("/"); runtime_path.append("libtango-base-llvmdc.a"); args.push_back(runtime_path.c_str()); // print link command? if (!global.params.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()); fatal(); } } ////////////////////////////////////////////////////////////////////////////// void deleteExecutable() { if (!gExePath.isEmpty()) { assert(gExePath.isValid()); assert(!gExePath.isDirectory()); gExePath.eraseFromDisk(false); } } ////////////////////////////////////////////////////////////////////////////// int runExectuable() { assert(!gExePath.isEmpty()); assert(gExePath.isValid()); // build arguments std::vector<const char*> args; for (size_t i = 0; i < global.params.runargs_length; i++) { char *a = global.params.runargs[i]; args.push_back(a); } // 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 (!errstr.empty()) { error("failed to execute program"); if (!errstr.empty()) error("error message: %s", errstr.c_str()); fatal(); } return status; }