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Bugfix, ECIWX/ECOWX disabled

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This commit is contained in:
Nekotekina 2015-02-08 16:38:08 +03:00
parent 3080fb2806
commit 19acaf3f86
6 changed files with 64 additions and 68 deletions
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49
Utilities/Thread.cpp
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@ -292,47 +292,39 @@ bool handle_access_violation(const u32 addr, x64_context* context)
void _se_translator(unsigned int u, EXCEPTION_POINTERS* pExp)
{
const u64 addr64 = (u64)pExp->ExceptionRecord->ExceptionInformation[1] - (u64)Memory.GetBaseAddr();
const u64 addr64 = (u64)pExp->ExceptionRecord->ExceptionInformation[1] - (u64)vm::g_base_addr;
const bool is_writing = pExp->ExceptionRecord->ExceptionInformation[0] != 0;
if (u == EXCEPTION_ACCESS_VIOLATION && (u32)addr64 == addr64)
{
if (handle_access_violation((u32)addr64, pExp->ContextRecord))
{
// restore context (further code shouldn't be reached)
RtlRestoreContext(pExp->ContextRecord, nullptr);
// it's dangerous because destructors won't be executed
}
throw fmt::format("Access violation %s location 0x%llx", is_writing ? "writing" : "reading", addr64);
}
// else some fatal error (should crash)
}
extern LPTOP_LEVEL_EXCEPTION_FILTER filter_set;
LONG __stdcall exception_filter(_EXCEPTION_POINTERS* pExp)
const PVOID exception_handler = (atexit([]{ RemoveVectoredExceptionHandler(exception_handler); }), AddVectoredExceptionHandler(1, [](PEXCEPTION_POINTERS pExp) -> LONG
{
_se_translator(pExp->ExceptionRecord->ExceptionCode, pExp);
const u64 addr64 = (u64)pExp->ExceptionRecord->ExceptionInformation[1] - (u64)vm::g_base_addr;
if (filter_set)
if (pExp->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION &&
(u32)addr64 == addr64 &&
GetCurrentNamedThread() &&
handle_access_violation((u32)addr64, pExp->ContextRecord))
{
return filter_set(pExp);
return EXCEPTION_CONTINUE_EXECUTION;
}
else
{
return EXCEPTION_CONTINUE_SEARCH;
}
}
LPTOP_LEVEL_EXCEPTION_FILTER filter_set = SetUnhandledExceptionFilter(exception_filter);
}));
#else
void signal_handler(int sig, siginfo_t* info, void* uct)
{
const u64 addr64 = (u64)info->si_addr - (u64)Memory.GetBaseAddr();
const u64 addr64 = (u64)info->si_addr - (u64)vm::g_base_addr;
const bool is_writing = ((ucontext_t*)uct)->uc_mcontext.gregs[REG_ERR] & 0x2;
if ((u32)addr64 == addr64 && GetCurrentNamedThread())
{
if (handle_access_violation((u32)addr64, (ucontext_t*)uct))
@ -341,7 +333,7 @@ void signal_handler(int sig, siginfo_t* info, void* uct)
}
// TODO: this may be wrong
throw fmt::format("Access violation at location 0x%llx", addr64);
throw fmt::format("Access violation %s location 0x%llx", is_writing ? "writing" : "reading", addr64);
}
// else some fatal error
@ -451,8 +443,17 @@ void ThreadBase::Start()
#ifdef _WIN32
auto old_se_translator = _set_se_translator(_se_translator);
if (!exception_handler)
{
LOG_ERROR(GENERAL, "exception_handler not set");
return;
}
#else
if (sigaction_result == -1) assert(!"sigaction() failed");
if (sigaction_result == -1)
{
printf("sigaction() failed");
exit(EXIT_FAILURE);
}
#endif
SetCurrentNamedThread(this);
@ -590,8 +591,6 @@ void thread_t::start(std::function<void()> func)
#ifdef _WIN32
auto old_se_translator = _set_se_translator(_se_translator);
#else
if (sigaction_result == -1) assert(!"sigaction() failed");
#endif
NamedThreadBase info(name);