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For PR351:

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* Place a try/catch block around the entire tool to Make sure std::string
  exceptions are caught and printed before exiting the tool.
* Make sure we catch unhandled exceptions at the top level so that we don't
  abort with a useless message but indicate than an unhandled exception was
  generated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19192 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2004-12-30 05:36:08 +00:00
parent c18671cdcd
commit 1ef8bdaedb
17 changed files with 960 additions and 852 deletions
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tools/lli/lli.cpp
+62 -55
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@@ -47,62 +47,69 @@ namespace {
// main Driver function
//
int main(int argc, char **argv, char * const *envp) {
cl::ParseCommandLineOptions(argc, argv,
" llvm interpreter & dynamic compiler\n");
sys::PrintStackTraceOnErrorSignal();
// Load the bytecode...
std::string ErrorMsg;
ModuleProvider *MP = 0;
try {
MP = getBytecodeModuleProvider(InputFile);
} catch (std::string &err) {
std::cerr << "Error loading program '" << InputFile << "': " << err << "\n";
exit(1);
cl::ParseCommandLineOptions(argc, argv,
" llvm interpreter & dynamic compiler\n");
sys::PrintStackTraceOnErrorSignal();
// Load the bytecode...
std::string ErrorMsg;
ModuleProvider *MP = 0;
try {
MP = getBytecodeModuleProvider(InputFile);
} catch (std::string &err) {
std::cerr << "Error loading program '" << InputFile << "': " << err << "\n";
exit(1);
}
ExecutionEngine *EE = ExecutionEngine::create(MP, ForceInterpreter);
assert(EE && "Couldn't create an ExecutionEngine, not even an interpreter?");
// If the user specifically requested an argv[0] to pass into the program, do
// it now.
if (!FakeArgv0.empty()) {
InputFile = FakeArgv0;
} else {
// Otherwise, if there is a .bc suffix on the executable strip it off, it
// might confuse the program.
if (InputFile.rfind(".bc") == InputFile.length() - 3)
InputFile.erase(InputFile.length() - 3);
}
// Add the module's name to the start of the vector of arguments to main().
InputArgv.insert(InputArgv.begin(), InputFile);
// Call the main function from M as if its signature were:
// int main (int argc, char **argv, const char **envp)
// using the contents of Args to determine argc & argv, and the contents of
// EnvVars to determine envp.
//
Function *Fn = MP->getModule()->getMainFunction();
if (!Fn) {
std::cerr << "'main' function not found in module.\n";
return -1;
}
// Run main...
int Result = EE->runFunctionAsMain(Fn, InputArgv, envp);
// If the program didn't explicitly call exit, call exit now, for the program.
// This ensures that any atexit handlers get called correctly.
Function *Exit = MP->getModule()->getOrInsertFunction("exit", Type::VoidTy,
Type::IntTy, 0);
std::vector<GenericValue> Args;
GenericValue ResultGV;
ResultGV.IntVal = Result;
Args.push_back(ResultGV);
EE->runFunction(Exit, Args);
std::cerr << "ERROR: exit(" << Result << ") returned!\n";
abort();
} catch (const std::string& msg) {
std::cerr << argv[0] << ": " << msg << "\n";
} catch (...) {
std::cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
}
ExecutionEngine *EE = ExecutionEngine::create(MP, ForceInterpreter);
assert(EE && "Couldn't create an ExecutionEngine, not even an interpreter?");
// If the user specifically requested an argv[0] to pass into the program, do
// it now.
if (!FakeArgv0.empty()) {
InputFile = FakeArgv0;
} else {
// Otherwise, if there is a .bc suffix on the executable strip it off, it
// might confuse the program.
if (InputFile.rfind(".bc") == InputFile.length() - 3)
InputFile.erase(InputFile.length() - 3);
}
// Add the module's name to the start of the vector of arguments to main().
InputArgv.insert(InputArgv.begin(), InputFile);
// Call the main function from M as if its signature were:
// int main (int argc, char **argv, const char **envp)
// using the contents of Args to determine argc & argv, and the contents of
// EnvVars to determine envp.
//
Function *Fn = MP->getModule()->getMainFunction();
if (!Fn) {
std::cerr << "'main' function not found in module.\n";
return -1;
}
// Run main...
int Result = EE->runFunctionAsMain(Fn, InputArgv, envp);
// If the program didn't explicitly call exit, call exit now, for the program.
// This ensures that any atexit handlers get called correctly.
Function *Exit = MP->getModule()->getOrInsertFunction("exit", Type::VoidTy,
Type::IntTy, 0);
std::vector<GenericValue> Args;
GenericValue ResultGV;
ResultGV.IntVal = Result;
Args.push_back(ResultGV);
EE->runFunction(Exit, Args);
std::cerr << "ERROR: exit(" << Result << ") returned!\n";
abort();
}