1 //===--- Action.cpp - The LLVM Compiler Driver ------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open
6 // Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Action class - implementation and auxiliary functions.
12 //===----------------------------------------------------------------------===//
14 #include "llvm/CompilerDriver/Action.h"
15 #include "llvm/CompilerDriver/BuiltinOptions.h"
17 #include "llvm/System/Program.h"
23 using namespace llvmc;
26 int ExecuteProgram(const std::string& name,
27 const StrVector& args) {
28 sys::Path prog = sys::Program::FindProgramByName(name);
31 throw std::runtime_error("Can't find program '" + name + "'");
32 if (!prog.canExecute())
33 throw std::runtime_error("Program '" + name + "' is not executable.");
35 // Build the command line vector and the redirects array.
36 const sys::Path* redirects[3] = {0,0,0};
37 sys::Path stdout_redirect;
39 std::vector<const char*> argv;
40 argv.reserve((args.size()+2));
41 argv.push_back(name.c_str());
43 for (StrVector::const_iterator B = args.begin(), E = args.end();
47 stdout_redirect.set(*B);
48 redirects[1] = &stdout_redirect;
51 argv.push_back((*B).c_str());
54 argv.push_back(0); // null terminate list.
56 // Invoke the program.
57 return sys::Program::ExecuteAndWait(prog, &argv[0], 0, &redirects[0]);
60 void print_string (const std::string& str) {
61 std::cerr << str << ' ';
65 int llvmc::Action::Execute() const {
66 if (DryRun || VerboseMode) {
67 std::cerr << Command_ << " ";
68 std::for_each(Args_.begin(), Args_.end(), print_string);
74 return ExecuteProgram(Command_, Args_);