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authorJulian Büning <julian.buening@rwth-aachen.de>2020-02-09 15:51:28 +0100
committerMartinNowack <2443641+MartinNowack@users.noreply.github.com>2020-06-25 16:30:10 +0100
commit21d2134dbd4ffe9f4252becf575969b78a43e1b8 (patch)
treea41d89167a76b25f18616c440b3335813494454c /lib
parent339054c1e93f23ae811abbba4c5531dc9342b17f (diff)
downloadklee-21d2134dbd4ffe9f4252becf575969b78a43e1b8.tar.gz
Executor: consolidate initialization of global objects
Diffstat (limited to 'lib')
-rw-r--r--lib/Core/Executor.cpp56
1 files changed, 23 insertions, 33 deletions
diff --git a/lib/Core/Executor.cpp b/lib/Core/Executor.cpp
index 438fb0e3..9209be8a 100644
--- a/lib/Core/Executor.cpp
+++ b/lib/Core/Executor.cpp
@@ -750,35 +750,9 @@ void Executor::allocateGlobalObjects(ExecutionState &state) {
/*alignment=*/globalObjectAlignment);
if (!mo)
klee_error("out of memory");
- ObjectState *os = bindObjectInState(state, mo, false);
globalObjects.emplace(&v, mo);
globalAddresses.emplace(&v, mo->getBaseExpr());
-
- if (v.isDeclaration() && size) {
- // Program already running -> object already initialized.
- // Read concrete value and write it to our copy.
- void *addr;
- if (v.getName() == "__dso_handle") {
- addr = &__dso_handle; // wtf ?
- } else {
- addr = externalDispatcher->resolveSymbol(v.getName());
- }
- if (!addr) {
- klee_error("Unable to load symbol(%.*s) while initializing globals",
- static_cast<int>(v.getName().size()),
- v.getName().data()
- );
- }
-
- for (unsigned offset = 0; offset < mo->size; offset++) {
- os->write8(offset, static_cast<unsigned char*>(addr)[offset]);
- }
- } else {
- if (!v.hasInitializer())
- os->initializeToRandom();
- }
}
-
}
void Executor::initializeGlobalAliases() {
@@ -808,15 +782,31 @@ void Executor::initializeGlobalObjects(ExecutionState &state) {
// calls
std::vector<ObjectState *> constantObjects;
for (const GlobalVariable &v : m->globals()) {
- if (v.hasInitializer()) {
- MemoryObject *mo = globalObjects.find(&v)->second;
- const ObjectState *os = state.addressSpace.findObject(mo);
- assert(os);
- ObjectState *wos = state.addressSpace.getWriteable(mo, os);
+ MemoryObject *mo = globalObjects.find(&v)->second;
+ ObjectState *os = bindObjectInState(state, mo, false);
- initializeGlobalObject(state, wos, v.getInitializer(), 0);
+ if (v.isDeclaration() && mo->size) {
+ // Program already running -> object already initialized.
+ // Read concrete value and write it to our copy.
+ void *addr;
+ if (v.getName() == "__dso_handle") {
+ addr = &__dso_handle; // wtf ?
+ } else {
+ addr = externalDispatcher->resolveSymbol(v.getName());
+ }
+ if (!addr) {
+ klee_error("Unable to load symbol(%.*s) while initializing globals",
+ static_cast<int>(v.getName().size()), v.getName().data());
+ }
+ for (unsigned offset = 0; offset < mo->size; offset++) {
+ os->write8(offset, static_cast<unsigned char *>(addr)[offset]);
+ }
+ } else if (v.hasInitializer()) {
+ initializeGlobalObject(state, os, v.getInitializer(), 0);
if (v.isConstant())
- constantObjects.emplace_back(wos);
+ constantObjects.emplace_back(os);
+ } else {
+ os->initializeToRandom();
}
}