forked from OSchip/llvm-project
135 lines
3.3 KiB
C++
135 lines
3.3 KiB
C++
//===--- Action.cpp - The LLVM Compiler Driver ------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open
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// Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Action class - implementation and auxiliary functions.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CompilerDriver/Action.h"
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#include "llvm/CompilerDriver/BuiltinOptions.h"
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#include "llvm/CompilerDriver/Error.h"
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#include "llvm/CompilerDriver/Main.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/Support/SystemUtils.h"
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#include "llvm/System/Program.h"
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#include "llvm/System/TimeValue.h"
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#include <stdexcept>
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#include <string>
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using namespace llvm;
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using namespace llvmc;
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namespace llvmc {
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extern const char* ProgramName;
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}
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namespace {
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void PrintString (const std::string& str) {
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errs() << str << ' ';
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}
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void PrintCommand (const std::string& Cmd, const StrVector& Args) {
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errs() << Cmd << ' ';
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std::for_each(Args.begin(), Args.end(), &PrintString);
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errs() << '\n';
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}
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bool IsSegmentationFault (int returnCode) {
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#ifdef LLVM_ON_WIN32
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return (returnCode >= 0xc0000000UL)
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#else
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return (returnCode < 0);
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#endif
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}
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int ExecuteProgram (const std::string& name, const StrVector& args) {
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sys::Path prog(name);
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if (!prog.isAbsolute()) {
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prog = PrependMainExecutablePath(name, ProgramName,
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(void *)(intptr_t)&Main);
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if (!prog.canExecute()) {
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prog = sys::Program::FindProgramByName(name);
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if (prog.isEmpty()) {
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PrintError("Can't find program '" + name + "'");
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return -1;
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}
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}
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}
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if (!prog.canExecute()) {
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PrintError("Program '" + name + "' is not executable.");
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return -1;
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}
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// Build the command line vector and the redirects array.
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const sys::Path* redirects[3] = {0,0,0};
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sys::Path stdout_redirect;
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std::vector<const char*> argv;
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argv.reserve((args.size()+2));
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argv.push_back(name.c_str());
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for (StrVector::const_iterator B = args.begin(), E = args.end();
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B!=E; ++B) {
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if (*B == ">") {
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++B;
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stdout_redirect.set(*B);
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redirects[1] = &stdout_redirect;
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}
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else {
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argv.push_back((*B).c_str());
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}
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}
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argv.push_back(0); // null terminate list.
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// Invoke the program.
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int ret = sys::Program::ExecuteAndWait(prog, &argv[0], 0, &redirects[0]);
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if (IsSegmentationFault(ret)) {
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errs() << "Segmentation fault: ";
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PrintCommand(name, args);
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}
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return ret;
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}
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}
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namespace llvmc {
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void AppendToGlobalTimeLog (const std::string& cmd, double time);
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}
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int llvmc::Action::Execute () const {
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if (DryRun || VerboseMode)
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PrintCommand(Command_, Args_);
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if (!DryRun) {
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if (Time) {
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sys::TimeValue now = sys::TimeValue::now();
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int ret = ExecuteProgram(Command_, Args_);
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sys::TimeValue now2 = sys::TimeValue::now();
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now2 -= now;
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double elapsed = now2.seconds() + now2.microseconds() / 1000000.0;
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AppendToGlobalTimeLog(Command_, elapsed);
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return ret;
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}
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else {
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return ExecuteProgram(Command_, Args_);
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}
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}
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return 0;
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}
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