diff options
Diffstat (limited to 'lib/ExecutionEngine/ExecutionEngine.cpp')
-rw-r--r-- | lib/ExecutionEngine/ExecutionEngine.cpp | 72 |
1 files changed, 40 insertions, 32 deletions
diff --git a/lib/ExecutionEngine/ExecutionEngine.cpp b/lib/ExecutionEngine/ExecutionEngine.cpp index 8cc2244272..1771ad7a32 100644 --- a/lib/ExecutionEngine/ExecutionEngine.cpp +++ b/lib/ExecutionEngine/ExecutionEngine.cpp @@ -230,43 +230,51 @@ static void *CreateArgv(ExecutionEngine *EE, /// runStaticConstructorsDestructors - This method is used to execute all of -/// the static constructors or destructors for a program, depending on the +/// the static constructors or destructors for a module, depending on the /// value of isDtors. -void ExecutionEngine::runStaticConstructorsDestructors(bool isDtors) { +void ExecutionEngine::runStaticConstructorsDestructors(Module *module, bool isDtors) { const char *Name = isDtors ? "llvm.global_dtors" : "llvm.global_ctors"; // Execute global ctors/dtors for each module in the program. - for (unsigned m = 0, e = Modules.size(); m != e; ++m) { - GlobalVariable *GV = Modules[m]->getModule()->getNamedGlobal(Name); - - // If this global has internal linkage, or if it has a use, then it must be - // an old-style (llvmgcc3) static ctor with __main linked in and in use. If - // this is the case, don't execute any of the global ctors, __main will do - // it. - if (!GV || GV->isDeclaration() || GV->hasInternalLinkage()) continue; - // Should be an array of '{ int, void ()* }' structs. The first value is - // the init priority, which we ignore. - ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer()); - if (!InitList) continue; - for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) - if (ConstantStruct *CS = - dyn_cast<ConstantStruct>(InitList->getOperand(i))) { - if (CS->getNumOperands() != 2) break; // Not array of 2-element structs. - - Constant *FP = CS->getOperand(1); - if (FP->isNullValue()) - break; // Found a null terminator, exit. - - if (ConstantExpr *CE = dyn_cast<ConstantExpr>(FP)) - if (CE->isCast()) - FP = CE->getOperand(0); - if (Function *F = dyn_cast<Function>(FP)) { - // Execute the ctor/dtor function! - runFunction(F, std::vector<GenericValue>()); - } - } - } + GlobalVariable *GV = module->getNamedGlobal(Name); + + // If this global has internal linkage, or if it has a use, then it must be + // an old-style (llvmgcc3) static ctor with __main linked in and in use. If + // this is the case, don't execute any of the global ctors, __main will do + // it. + if (!GV || GV->isDeclaration() || GV->hasInternalLinkage()) return; + + // Should be an array of '{ int, void ()* }' structs. The first value is + // the init priority, which we ignore. + ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer()); + if (!InitList) return; + for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) + if (ConstantStruct *CS = + dyn_cast<ConstantStruct>(InitList->getOperand(i))) { + if (CS->getNumOperands() != 2) return; // Not array of 2-element structs. + + Constant *FP = CS->getOperand(1); + if (FP->isNullValue()) + break; // Found a null terminator, exit. + + if (ConstantExpr *CE = dyn_cast<ConstantExpr>(FP)) + if (CE->isCast()) + FP = CE->getOperand(0); + if (Function *F = dyn_cast<Function>(FP)) { + // Execute the ctor/dtor function! + runFunction(F, std::vector<GenericValue>()); + } + } +} + +/// runStaticConstructorsDestructors - This method is used to execute all of +/// the static constructors or destructors for a program, depending on the +/// value of isDtors. +void ExecutionEngine::runStaticConstructorsDestructors(bool isDtors) { + // Execute global ctors/dtors for each module in the program. + for (unsigned m = 0, e = Modules.size(); m != e; ++m) + runStaticConstructorsDestructors(Modules[m]->getModule(), isDtors); } #ifndef NDEBUG |