Enough of ObOpenObjectByName to handle basic usage + asserts for others.

Fixes #143.
This commit is contained in:
Ben Vanik
2015-02-11 09:42:12 -08:00
parent 2c49eec79f
commit 90e489527a
7 changed files with 175 additions and 28 deletions

View File

@@ -57,6 +57,26 @@ namespace kernel {
// stw r3, 0x160(r11)
// }
void AssertNoNameCollision(KernelState* state, uint32_t obj_attributes_ptr) {
// If the name exists and its type matches, we can return that (ref+1)
// with a success of NAME_EXISTS.
// If the name exists and its type doesn't match, we do NAME_COLLISION.
// Otherwise, we add like normal.
auto membase = state->memory()->membase();
uint32_t name_str_ptr =
poly::load_and_swap<uint32_t>(membase + obj_attributes_ptr + 4);
if (name_str_ptr) {
X_ANSI_STRING name_str(membase, name_str_ptr);
auto name = name_str.to_string();
X_HANDLE handle = X_INVALID_HANDLE_VALUE;
X_RESULT result = state->object_table()->GetObjectByName(name, &handle);
if (XSUCCEEDED(result)) {
// Found something!
assert_always("Existing names not implemented");
}
}
}
SHIM_CALL ExCreateThread_shim(PPCContext* ppc_state, KernelState* state) {
uint32_t handle_ptr = SHIM_GET_ARG_32(0);
uint32_t stack_size = SHIM_GET_ARG_32(1);
@@ -425,13 +445,16 @@ SHIM_CALL NtCreateEvent_shim(PPCContext* ppc_state, KernelState* state) {
XELOGD("NtCreateEvent(%.8X, %.8X, %d, %d)", handle_ptr, obj_attributes_ptr,
event_type, initial_state);
// TODO(benvanik): check for name collision. May return existing object if
// type matches.
AssertNoNameCollision(state, obj_attributes_ptr);
XEvent* ev = new XEvent(state);
ev->Initialize(!event_type, !!initial_state);
// obj_attributes may have a name inside of it, if != NULL.
auto obj_attributes = SHIM_MEM_ADDR(obj_attributes_ptr);
if (obj_attributes) {
// ev->SetName(...);
if (obj_attributes_ptr) {
ev->SetAttributes(SHIM_MEM_ADDR(obj_attributes_ptr));
}
if (handle_ptr) {
@@ -566,12 +589,16 @@ SHIM_CALL NtCreateSemaphore_shim(PPCContext* ppc_state, KernelState* state) {
XELOGD("NtCreateSemaphore(%.8X, %.8X, %d, %d)", handle_ptr,
obj_attributes_ptr, count, limit);
// TODO(benvanik): check for name collision. May return existing object if
// type matches.
AssertNoNameCollision(state, obj_attributes_ptr);
XSemaphore* sem = new XSemaphore(state);
sem->Initialize(count, limit);
// obj_attributes may have a name inside of it, if != NULL.
if (obj_attributes_ptr) {
// sem->SetName(...);
sem->SetAttributes(SHIM_MEM_ADDR(obj_attributes_ptr));
}
if (handle_ptr) {
@@ -656,12 +683,16 @@ SHIM_CALL NtCreateMutant_shim(PPCContext* ppc_state, KernelState* state) {
XELOGD("NtCreateMutant(%.8X, %.8X, %.1X)", handle_ptr, obj_attributes_ptr,
initial_owner);
// TODO(benvanik): check for name collision. May return existing object if
// type matches.
AssertNoNameCollision(state, obj_attributes_ptr);
XMutant* mutant = new XMutant(state);
mutant->Initialize(initial_owner ? true : false);
// obj_attributes may have a name inside of it, if != NULL.
if (obj_attributes_ptr) {
// mutant->SetName(...);
mutant->SetAttributes(SHIM_MEM_ADDR(obj_attributes_ptr));
}
if (handle_ptr) {
@@ -709,12 +740,16 @@ SHIM_CALL NtCreateTimer_shim(PPCContext* ppc_state, KernelState* state) {
XELOGD("NtCreateTimer(%.8X, %.8X, %.1X)", handle_ptr, obj_attributes_ptr,
timer_type);
// TODO(benvanik): check for name collision. May return existing object if
// type matches.
AssertNoNameCollision(state, obj_attributes_ptr);
XTimer* timer = new XTimer(state);
timer->Initialize(timer_type);
// obj_attributes may have a name inside of it, if != NULL.
if (obj_attributes_ptr) {
// timer->SetName(...);
timer->SetAttributes(SHIM_MEM_ADDR(obj_attributes_ptr));
}
if (handle_ptr) {