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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127691 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2011-03-15 20:25:54 +00:00
parent 6e51c6ad9d
commit 4f9fc854bc
1 changed files with 34 additions and 34 deletions
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68
lib/ExecutionEngine/JIT/JIT.cpp
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@ -35,7 +35,7 @@
using namespace llvm;
#ifdef __APPLE__
#ifdef __APPLE__
// Apple gcc defaults to -fuse-cxa-atexit (i.e. calls __cxa_atexit instead
// of atexit). It passes the address of linker generated symbol __dso_handle
// to the function.
@ -75,7 +75,7 @@ extern "C" void LLVMLinkInJIT() {
#endif
#if HAVE_EHTABLE_SUPPORT
// libgcc defines the __register_frame function to dynamically register new
// dwarf frames for exception handling. This functionality is not portable
// across compilers and is only provided by GCC. We use the __register_frame
@ -113,10 +113,10 @@ struct LibgccObject {
void *unused1;
void *unused2;
void *unused3;
/// frame - Pointer to the exception table.
void *frame;
/// encoding - The encoding of the object?
union {
struct {
@ -124,15 +124,15 @@ struct LibgccObject {
unsigned long from_array : 1;
unsigned long mixed_encoding : 1;
unsigned long encoding : 8;
unsigned long count : 21;
unsigned long count : 21;
} b;
size_t i;
} encoding;
/// fde_end - libgcc defines this field only if some macro is defined. We
/// include this field even if it may not there, to make libgcc happy.
char *fde_end;
/// next - At least we know it's a chained list!
struct LibgccObject *next;
};
@ -153,7 +153,7 @@ struct LibgccObjectInfo {
/// unseenObjects - LibgccObjects not parsed yet by the unwinding runtime.
///
struct LibgccObject* unseenObjects;
unsigned unused[2];
};
@ -165,32 +165,32 @@ void DarwinRegisterFrame(void* FrameBegin) {
LibgccObjectInfo* LOI = (struct LibgccObjectInfo*)
_keymgr_get_and_lock_processwide_ptr(KEYMGR_GCC3_DW2_OBJ_LIST);
assert(LOI && "This should be preallocated by the runtime");
// Allocate a new LibgccObject to represent this frame. Deallocation of this
// object may be impossible: since darwin code in libgcc was written after
// the ability to dynamically register frames, things may crash if we
// deallocate it.
struct LibgccObject* ob = (struct LibgccObject*)
malloc(sizeof(struct LibgccObject));
// Do like libgcc for the values of the field.
ob->unused1 = (void *)-1;
ob->unused2 = 0;
ob->unused3 = 0;
ob->frame = FrameBegin;
ob->encoding.i = 0;
ob->encoding.i = 0;
ob->encoding.b.encoding = llvm::dwarf::DW_EH_PE_omit;
// Put the info on both places, as libgcc uses the first or the second
// field. Note that we rely on having two pointers here. If fde_end was a
// char, things would get complicated.
ob->fde_end = (char*)LOI->unseenObjects;
ob->next = LOI->unseenObjects;
// Update the key's unseenObjects list.
LOI->unseenObjects = ob;
// Finally update the "key". Apparently, libgcc requires it.
// Finally update the "key". Apparently, libgcc requires it.
_keymgr_set_and_unlock_processwide_ptr(KEYMGR_GCC3_DW2_OBJ_LIST,
LOI);
@ -312,18 +312,18 @@ JIT::JIT(Module *M, TargetMachine &tm, TargetJITInfo &tji,
if (TM.addPassesToEmitMachineCode(PM, *JCE, OptLevel)) {
report_fatal_error("Target does not support machine code emission!");
}
// Register routine for informing unwinding runtime about new EH frames
#if HAVE_EHTABLE_SUPPORT
#if USE_KEYMGR
struct LibgccObjectInfo* LOI = (struct LibgccObjectInfo*)
_keymgr_get_and_lock_processwide_ptr(KEYMGR_GCC3_DW2_OBJ_LIST);
// The key is created on demand, and libgcc creates it the first time an
// exception occurs. Since we need the key to register frames, we create
// it now.
if (!LOI)
LOI = (LibgccObjectInfo*)calloc(sizeof(struct LibgccObjectInfo), 1);
LOI = (LibgccObjectInfo*)calloc(sizeof(struct LibgccObjectInfo), 1);
_keymgr_set_and_unlock_processwide_ptr(KEYMGR_GCC3_DW2_OBJ_LIST, LOI);
InstallExceptionTableRegister(DarwinRegisterFrame);
// Not sure about how to deregister on Darwin.
@ -332,7 +332,7 @@ JIT::JIT(Module *M, TargetMachine &tm, TargetJITInfo &tji,
InstallExceptionTableDeregister(__deregister_frame);
#endif // __APPLE__
#endif // HAVE_EHTABLE_SUPPORT
// Initialize passes.
PM.doInitialization();
}
@ -365,11 +365,11 @@ void JIT::addModule(Module *M) {
if (TM.addPassesToEmitMachineCode(PM, *JCE, CodeGenOpt::Default)) {
report_fatal_error("Target does not support machine code emission!");
}
// Initialize passes.
PM.doInitialization();
}
ExecutionEngine::addModule(M);
}
@ -377,29 +377,29 @@ void JIT::addModule(Module *M) {
/// since the PassManager it contains references a released Module.
bool JIT::removeModule(Module *M) {
bool result = ExecutionEngine::removeModule(M);
MutexGuard locked(lock);
if (jitstate->getModule() == M) {
delete jitstate;
jitstate = 0;
}
if (!jitstate && !Modules.empty()) {
jitstate = new JITState(Modules[0]);
FunctionPassManager &PM = jitstate->getPM(locked);
PM.add(new TargetData(*TM.getTargetData()));
// Turn the machine code intermediate representation into bytes in memory
// that may be executed.
if (TM.addPassesToEmitMachineCode(PM, *JCE, CodeGenOpt::Default)) {
report_fatal_error("Target does not support machine code emission!");
}
// Initialize passes.
PM.doInitialization();
}
}
return result;
}
@ -433,7 +433,7 @@ GenericValue JIT::runFunction(Function *F,
// Call the function.
GenericValue rv;
rv.IntVal = APInt(32, PF(ArgValues[0].IntVal.getZExtValue(),
rv.IntVal = APInt(32, PF(ArgValues[0].IntVal.getZExtValue(),
(char **)GVTOP(ArgValues[1]),
(const char **)GVTOP(ArgValues[2])));
return rv;
@ -446,7 +446,7 @@ GenericValue JIT::runFunction(Function *F,
// Call the function.
GenericValue rv;
rv.IntVal = APInt(32, PF(ArgValues[0].IntVal.getZExtValue(),
rv.IntVal = APInt(32, PF(ArgValues[0].IntVal.getZExtValue(),
(char **)GVTOP(ArgValues[1])));
return rv;
}
@ -480,7 +480,7 @@ GenericValue JIT::runFunction(Function *F,
rv.IntVal = APInt(BitWidth, ((int(*)())(intptr_t)FPtr)());
else if (BitWidth <= 64)
rv.IntVal = APInt(BitWidth, ((int64_t(*)())(intptr_t)FPtr)());
else
else
llvm_unreachable("Integer types > 64 bits not supported");
return rv;
}
@ -542,7 +542,7 @@ GenericValue JIT::runFunction(Function *F,
case Type::PointerTyID:
void *ArgPtr = GVTOP(AV);
if (sizeof(void*) == 4)
C = ConstantInt::get(Type::getInt32Ty(F->getContext()),
C = ConstantInt::get(Type::getInt32Ty(F->getContext()),
(int)(intptr_t)ArgPtr);
else
C = ConstantInt::get(Type::getInt64Ty(F->getContext()),
@ -649,7 +649,7 @@ void JIT::runJITOnFunctionUnlocked(Function *F, const MutexGuard &locked) {
"Externally-defined function should not be in pending list.");
jitTheFunction(PF, locked);
// Now that the function has been jitted, ask the JITEmitter to rewrite
// the stub with real address of the function.
updateFunctionStub(PF);
@ -703,7 +703,7 @@ void *JIT::getPointerToFunction(Function *F) {
void JIT::addPointerToBasicBlock(const BasicBlock *BB, void *Addr) {
MutexGuard locked(lock);
BasicBlockAddressMapTy::iterator I =
getBasicBlockAddressMap(locked).find(BB);
if (I == getBasicBlockAddressMap(locked).end()) {
@ -724,7 +724,7 @@ void *JIT::getPointerToBasicBlock(BasicBlock *BB) {
// resolve basic block address
MutexGuard locked(lock);
BasicBlockAddressMapTy::iterator I =
getBasicBlockAddressMap(locked).find(BB);
if (I != getBasicBlockAddressMap(locked).end()) {