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Pass command line arguments to main

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5027 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-12-13 16:48:57 +00:00
parent 395a8821bf
commit 041b31ce69
3 changed files with 24 additions and 5 deletions
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9
tools/jello/VM.cpp
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@ -38,9 +38,14 @@ void VM::setupPassManager() {
}
int VM::run(Function *F) {
int(*PF)() = (int(*)())getPointerToFunction(F);
int(*PF)(int, char**) = (int(*)(int, char**))getPointerToFunction(F);
assert(PF != 0 && "Null pointer to function?");
return PF();
unsigned NumArgs = 0;
for (; Argv[NumArgs]; ++NumArgs)
;
return PF(NumArgs, Argv);
}
void *VM::resolveFunctionReference(void *RefAddr) {

5
tools/jello/VM.h
View File

@ -24,6 +24,7 @@ class VM {
TargetMachine &TM; // The current target we are compiling to
PassManager PM; // Passes to compile a function
MachineCodeEmitter *MCE; // MCE object
char **Argv;
// GlobalAddress - A mapping between LLVM values and their native code
// generated versions...
@ -35,8 +36,8 @@ class VM {
//
std::map<void*, Function*> FunctionRefs;
public:
VM(const std::string &name, Module &m, TargetMachine &tm)
: ExeName(name), M(m), TM(tm) {
VM(const std::string &name, char **AV, Module &m, TargetMachine &tm)
: ExeName(name), M(m), TM(tm), Argv(AV) {
MCE = createEmitter(*this); // Initialize MCE
setupPassManager();
registerCallback();

15
tools/jello/jello.cpp
View File

@ -16,6 +16,9 @@ namespace {
cl::opt<std::string>
InputFile(cl::desc("<input bytecode>"), cl::Positional, cl::init("-"));
cl::list<std::string>
InputArgv(cl::ConsumeAfter, cl::desc("<program arguments>..."));
cl::opt<std::string>
MainFunction("f", cl::desc("Function to execute"), cl::init("main"),
cl::value_desc("function name"));
@ -41,8 +44,18 @@ int main(int argc, char **argv) {
return 1;
}
// Build an argv vector...
InputArgv.insert(InputArgv.begin(), InputFile);
char **Argv = new char*[InputArgv.size()+1];
for (unsigned i = 0, e = InputArgv.size(); i != e; ++i) {
Argv[i] = new char[InputArgv[i].size()+1];
std::copy(InputArgv[i].begin(), InputArgv[i].end(), Argv[i]);
Argv[i][InputArgv[i].size()] = 0;
}
Argv[InputArgv.size()] = 0;
// Create the virtual machine object...
VM TheVM(argv[0], *M.get(), *Target.get());
VM TheVM(argv[0], Argv, *M.get(), *Target.get());
Function *F = M.get()->getNamedFunction(MainFunction);
if (F == 0) {