diff options
| author | ed <ed@FreeBSD.org> | 2009-06-02 17:52:33 +0000 |
|---|---|---|
| committer | ed <ed@FreeBSD.org> | 2009-06-02 17:52:33 +0000 |
| commit | 3277b69d734b9c90b44ebde4ede005717e2c3b2e (patch) | |
| tree | 64ba909838c23261cace781ece27d106134ea451 /lib/CompilerDriver/Action.cpp | |
| download | FreeBSD-src-3277b69d734b9c90b44ebde4ede005717e2c3b2e.zip FreeBSD-src-3277b69d734b9c90b44ebde4ede005717e2c3b2e.tar.gz | |
Import LLVM, at r72732.
Diffstat (limited to 'lib/CompilerDriver/Action.cpp')
| -rw-r--r-- | lib/CompilerDriver/Action.cpp | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/lib/CompilerDriver/Action.cpp b/lib/CompilerDriver/Action.cpp new file mode 100644 index 0000000..c0a1b84 --- /dev/null +++ b/lib/CompilerDriver/Action.cpp @@ -0,0 +1,78 @@ +//===--- Action.cpp - The LLVM Compiler Driver ------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open +// Source License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// Action class - implementation and auxiliary functions. +// +//===----------------------------------------------------------------------===// + +#include "llvm/CompilerDriver/Action.h" + +#include "llvm/Support/CommandLine.h" +#include "llvm/System/Program.h" + +#include <iostream> +#include <stdexcept> + +using namespace llvm; +using namespace llvmc; + +extern cl::opt<bool> DryRun; +extern cl::opt<bool> VerboseMode; + +namespace { + int ExecuteProgram(const std::string& name, + const StrVector& args) { + sys::Path prog = sys::Program::FindProgramByName(name); + + if (prog.isEmpty()) + throw std::runtime_error("Can't find program '" + name + "'"); + if (!prog.canExecute()) + throw std::runtime_error("Program '" + name + "' is not executable."); + + // Build the command line vector and the redirects array. + const sys::Path* redirects[3] = {0,0,0}; + sys::Path stdout_redirect; + + std::vector<const char*> argv; + argv.reserve((args.size()+2)); + argv.push_back(name.c_str()); + + for (StrVector::const_iterator B = args.begin(), E = args.end(); + B!=E; ++B) { + if (*B == ">") { + ++B; + stdout_redirect.set(*B); + redirects[1] = &stdout_redirect; + } + else { + argv.push_back((*B).c_str()); + } + } + argv.push_back(0); // null terminate list. + + // Invoke the program. + return sys::Program::ExecuteAndWait(prog, &argv[0], 0, &redirects[0]); + } + + void print_string (const std::string& str) { + std::cerr << str << ' '; + } +} + +int llvmc::Action::Execute() const { + if (DryRun || VerboseMode) { + std::cerr << Command_ << " "; + std::for_each(Args_.begin(), Args_.end(), print_string); + std::cerr << '\n'; + } + if (DryRun) + return 0; + else + return ExecuteProgram(Command_, Args_); +} |
