diff options
Diffstat (limited to 'lib/Core/Executor.cpp')
-rw-r--r-- | lib/Core/Executor.cpp | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/lib/Core/Executor.cpp b/lib/Core/Executor.cpp index af714c2c..9c5054c0 100644 --- a/lib/Core/Executor.cpp +++ b/lib/Core/Executor.cpp @@ -636,6 +636,20 @@ MemoryObject * Executor::addExternalObject(ExecutionState &state, extern void *__dso_handle __attribute__ ((__weak__)); void Executor::initializeGlobals(ExecutionState &state) { + // allocate and initialize globals, done in two passes since we may + // need address of a global in order to initialize some other one. + + // allocate memory objects for all globals + allocateGlobalObjects(state); + + // initialize aliases first, may be needed for global objects + initializeGlobalAliases(); + + // finally, do the actual initialization + initializeGlobalObjects(state); +} + +void Executor::allocateGlobalObjects(ExecutionState &state) { Module *m = kmodule->module.get(); if (m->getModuleInlineAsm() != "") @@ -696,10 +710,7 @@ void Executor::initializeGlobals(ExecutionState &state) { #endif #endif - // allocate and initialize globals, done in two passes since we may - // need address of a global in order to initialize some other one. - // allocate memory objects for all globals for (Module::const_global_iterator i = m->global_begin(), e = m->global_end(); i != e; ++i) { @@ -775,7 +786,11 @@ void Executor::initializeGlobals(ExecutionState &state) { os->initializeToRandom(); } } - +} + +void Executor::initializeGlobalAliases() { + const Module *m = kmodule->module.get(); + // link aliases to their definitions (if bound) for (auto i = m->alias_begin(), ie = m->alias_end(); i != ie; ++i) { // Map the alias to its aliasee's address. This works because we have @@ -791,8 +806,11 @@ void Executor::initializeGlobals(ExecutionState &state) { globalAddresses.insert(std::make_pair(&*i, evalConstant(alias->getAliasee()))); } +} + +void Executor::initializeGlobalObjects(ExecutionState &state) { + const Module *m = kmodule->module.get(); - // once all objects are allocated, do the actual initialization // remember constant objects to initialise their counter part for external // calls std::vector<ObjectState *> constantObjects; |