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Clean up lli execution code

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191845 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Kaylor 2013-10-02 18:04:40 +00:00
parent 56849e7a9d
commit f18815607a
1 changed files with 41 additions and 39 deletions
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78
tools/lli/lli.cpp
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@ -467,12 +467,10 @@ int main(int argc, char **argv, char * const *envp) {
// Reset errno to zero on entry to main. // Reset errno to zero on entry to main.
errno = 0; errno = 0;
// Remote target MCJIT doesn't (yet) support static constructors. No reason int Result;
// it couldn't. This is a limitation of the LLI implemantation, not the
// MCJIT itself. FIXME.
//
// Run static constructors.
if (!RemoteMCJIT) { if (!RemoteMCJIT) {
// Run static constructors.
if (UseMCJIT && !ForceInterpreter) { if (UseMCJIT && !ForceInterpreter) {
// Give MCJIT a chance to apply relocations and set page permissions. // Give MCJIT a chance to apply relocations and set page permissions.
EE->finalizeObject(); EE->finalizeObject();
@ -486,10 +484,41 @@ int main(int argc, char **argv, char * const *envp) {
EE->getPointerToFunction(Fn); EE->getPointerToFunction(Fn);
} }
} }
}
int Result; // Trigger compilation separately so code regions that need to be
if (RemoteMCJIT) { // invalidated will be known.
(void)EE->getPointerToFunction(EntryFn);
// Clear instruction cache before code will be executed.
if (RTDyldMM)
static_cast<SectionMemoryManager*>(RTDyldMM)->invalidateInstructionCache();
// Run main.
Result = EE->runFunctionAsMain(EntryFn, InputArgv, envp);
// Run static destructors.
EE->runStaticConstructorsDestructors(true);
// If the program didn't call exit explicitly, we should call it now.
// This ensures that any atexit handlers get called correctly.
if (Function *ExitF = dyn_cast<Function>(Exit)) {
std::vector<GenericValue> Args;
GenericValue ResultGV;
ResultGV.IntVal = APInt(32, Result);
Args.push_back(ResultGV);
EE->runFunction(ExitF, Args);
errs() << "ERROR: exit(" << Result << ") returned!\n";
abort();
} else {
errs() << "ERROR: exit defined with wrong prototype!\n";
abort();
}
} else {
// else == "if (RemoteMCJIT)"
// Remote target MCJIT doesn't (yet) support static constructors. No reason
// it couldn't. This is a limitation of the LLI implemantation, not the
// MCJIT itself. FIXME.
//
RecordingMemoryManager *MM = static_cast<RecordingMemoryManager*>(RTDyldMM); RecordingMemoryManager *MM = static_cast<RecordingMemoryManager*>(RTDyldMM);
// Everything is prepared now, so lay out our program for the target // Everything is prepared now, so lay out our program for the target
// address space, assign the section addresses to resolve any relocations, // address space, assign the section addresses to resolve any relocations,
@ -536,39 +565,12 @@ int main(int argc, char **argv, char * const *envp) {
if (Target->executeCode(Entry, Result)) if (Target->executeCode(Entry, Result))
errs() << "ERROR: " << Target->getErrorMsg() << "\n"; errs() << "ERROR: " << Target->getErrorMsg() << "\n";
Target->stop();
} else { // !RemoteMCJIT
// Trigger compilation separately so code regions that need to be
// invalidated will be known.
(void)EE->getPointerToFunction(EntryFn);
// Clear instruction cache before code will be executed.
if (RTDyldMM)
static_cast<SectionMemoryManager*>(RTDyldMM)->invalidateInstructionCache();
// Run main.
Result = EE->runFunctionAsMain(EntryFn, InputArgv, envp);
}
// Like static constructors, the remote target MCJIT support doesn't handle // Like static constructors, the remote target MCJIT support doesn't handle
// this yet. It could. FIXME. // this yet. It could. FIXME.
if (!RemoteMCJIT) {
// Run static destructors.
EE->runStaticConstructorsDestructors(true);
// If the program didn't call exit explicitly, we should call it now. // Stop the remote target
// This ensures that any atexit handlers get called correctly. Target->stop();
if (Function *ExitF = dyn_cast<Function>(Exit)) {
std::vector<GenericValue> Args;
GenericValue ResultGV;
ResultGV.IntVal = APInt(32, Result);
Args.push_back(ResultGV);
EE->runFunction(ExitF, Args);
errs() << "ERROR: exit(" << Result << ") returned!\n";
abort();
} else {
errs() << "ERROR: exit defined with wrong prototype!\n";
abort();
}
} }
return Result; return Result;
} }