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Cleaning up some stuff in RtlRaiseException, additional notes.

This commit is contained in:
gibbed 2015-05-22 00:21:12 -05:00
parent b3d56521b4
commit 06c99ded71
1 changed files with 38 additions and 14 deletions
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52
src/xenia/kernel/xboxkrnl_debug.cc
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@ -212,34 +212,51 @@ SHIM_CALL DbgBreakPoint_shim(PPCContext* ppc_state, KernelState* state) {
DebugBreak();
}
// https://msdn.microsoft.com/en-us/library/xcb2z8hs.aspx
typedef struct {
xe::be<uint32_t> type;
xe::be<uint32_t> name_ptr;
xe::be<uint32_t> thread_id;
xe::be<uint32_t> flags;
} X_THREADNAME_INFO;
static_assert_size(X_THREADNAME_INFO, 0x10);
// https://msdn.microsoft.com/en-us/library/windows/desktop/aa363082.aspx
typedef struct {
xe::be<uint32_t> exception_code;
xe::be<uint32_t> exception_flags;
xe::be<uint32_t> exception_record;
xe::be<uint32_t> exception_address;
xe::be<uint32_t> number_parameters;
xe::be<uint32_t> exception_information[15];
} X_EXCEPTION_RECORD;
static_assert_size(X_EXCEPTION_RECORD, 0x50);
SHIM_CALL RtlRaiseException_shim(PPCContext* ppc_state, KernelState* state) {
uint32_t record_ptr = SHIM_GET_ARG_32(0);
uint32_t code = SHIM_MEM_32(record_ptr + 0);
uint32_t flags = SHIM_MEM_32(record_ptr + 4);
// ...
uint32_t param_count = SHIM_MEM_32(record_ptr + 16);
auto record = reinterpret_cast<X_EXCEPTION_RECORD*>(SHIM_MEM_ADDR(record_ptr));
XELOGD("RtlRaiseException(%.8X(%.8X))", record_ptr, code);
XELOGD("RtlRaiseException(%.8X(%.8X))", record_ptr, record->exception_code);
if (code == 0x406D1388) {
if (record->exception_code == 0x406D1388) {
// SetThreadName. FFS.
uint32_t thread_info_ptr = record_ptr + 20;
uint32_t type = SHIM_MEM_32(thread_info_ptr + 0);
assert_true(type == 0x1000);
uint32_t name_ptr = SHIM_MEM_32(thread_info_ptr + 4);
uint32_t thread_id = SHIM_MEM_32(thread_info_ptr + 8);
// https://msdn.microsoft.com/en-us/library/xcb2z8hs.aspx
const char* name = (const char*)SHIM_MEM_ADDR(name_ptr);
// TODO: check record->number_parameters to make sure it's a correct size
auto thread_info = reinterpret_cast<X_THREADNAME_INFO*>(&record->exception_information[0]);
assert_true(thread_info->type == 0x1000);
const char* name = (const char*)SHIM_MEM_ADDR(thread_info->name_ptr);
XThread* thread = NULL;
if (thread_id == -1) {
if (thread_info->thread_id == -1) {
// Current thread.
thread = XThread::GetCurrentThread();
thread->Retain();
} else {
// Lookup thread by ID.
thread = state->GetThreadByID(thread_id);
thread = state->GetThreadByID(thread_info->thread_id);
}
if (thread) {
@ -252,6 +269,13 @@ SHIM_CALL RtlRaiseException_shim(PPCContext* ppc_state, KernelState* state) {
return;
}
if (record->exception_code == 0xE06D7363) {
// C++ exception.
// http://blogs.msdn.com/b/oldnewthing/archive/2010/07/30/10044061.aspx
DebugBreak();
return;
}
// TODO(benvanik): unwinding.
// This is going to suck.
DebugBreak();