static long __stdcall exception_filter(struct _EXCEPTION_POINTERS *info)
{
static const struct
{
DWORD code;
const char *string;
} exception_table[] =
{
{ EXCEPTION_ACCESS_VIOLATION, "ACCESS VIOLATION" },
{ EXCEPTION_DATATYPE_MISALIGNMENT, "DATATYPE MISALIGNMENT" },
{ EXCEPTION_BREAKPOINT, "BREAKPOINT" },
{ EXCEPTION_SINGLE_STEP, "SINGLE STEP" },
{ EXCEPTION_ARRAY_BOUNDS_EXCEEDED, "ARRAY BOUNDS EXCEEDED" },
{ EXCEPTION_FLT_DENORMAL_OPERAND, "FLOAT DENORMAL OPERAND" },
{ EXCEPTION_FLT_DIVIDE_BY_ZERO, "FLOAT DIVIDE BY ZERO" },
{ EXCEPTION_FLT_INEXACT_RESULT, "FLOAT INEXACT RESULT" },
{ EXCEPTION_FLT_INVALID_OPERATION, "FLOAT INVALID OPERATION" },
{ EXCEPTION_FLT_OVERFLOW, "FLOAT OVERFLOW" },
{ EXCEPTION_FLT_STACK_CHECK, "FLOAT STACK CHECK" },
{ EXCEPTION_FLT_UNDERFLOW, "FLOAT UNDERFLOW" },
{ EXCEPTION_INT_DIVIDE_BY_ZERO, "INTEGER DIVIDE BY ZERO" },
{ EXCEPTION_INT_OVERFLOW, "INTEGER OVERFLOW" },
{ EXCEPTION_PRIV_INSTRUCTION, "PRIVILEGED INSTRUCTION" },
{ EXCEPTION_IN_PAGE_ERROR, "IN PAGE ERROR" },
{ EXCEPTION_ILLEGAL_INSTRUCTION, "ILLEGAL INSTRUCTION" },
{ EXCEPTION_NONCONTINUABLE_EXCEPTION,"NONCONTINUABLE EXCEPTION" },
{ EXCEPTION_STACK_OVERFLOW, "STACK OVERFLOW" },
{ EXCEPTION_INVALID_DISPOSITION, "INVALID DISPOSITION" },
{ EXCEPTION_GUARD_PAGE, "GUARD PAGE VIOLATION" },
{ EXCEPTION_INVALID_HANDLE, "INVALID HANDLE" },
{ 0, "UNKNOWN EXCEPTION" }
};
static int already_hit = 0;
int i;
// if we're hitting this recursively, just exit
if (already_hit)
return EXCEPTION_CONTINUE_SEARCH;
already_hit = 1;
// flush any debugging traces that were live
debugger_flush_all_traces_on_abnormal_exit();
// find our man
for (i = 0; exception_table[i].code != 0; i++)
if (info->ExceptionRecord->ExceptionCode == exception_table[i].code)
break;
// print the exception type and address
fprintf(stderr, "\n-----------------------------------------------------\n");
auto diagnostics = downcast<diagnostics_win32 *>(get_instance());
fprintf(stderr, "Exception at EIP=%p%s: %s\n", info->ExceptionRecord->ExceptionAddress,
diagnostics->m_symbols->symbol_for_address((FPTR)info->ExceptionRecord->ExceptionAddress), exception_table[i].string);
// for access violations, print more info
if (info->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION)
fprintf(stderr, "While attempting to %s memory at %p\n",
info->ExceptionRecord->ExceptionInformation[0] ? "write" : "read",
(void *)info->ExceptionRecord->ExceptionInformation[1]);
// print the state of the CPU
fprintf(stderr, "-----------------------------------------------------\n");
#ifdef PTR64
fprintf(stderr, "RAX=%p RBX=%p RCX=%p RDX=%p\n",
(void *)info->ContextRecord->Rax,
(void *)info->ContextRecord->Rbx,
(void *)info->ContextRecord->Rcx,
(void *)info->ContextRecord->Rdx);
fprintf(stderr, "RSI=%p RDI=%p RBP=%p RSP=%p\n",
(void *)info->ContextRecord->Rsi,
(void *)info->ContextRecord->Rdi,
(void *)info->ContextRecord->Rbp,
(void *)info->ContextRecord->Rsp);
fprintf(stderr, " R8=%p R9=%p R10=%p R11=%p\n",
(void *)info->ContextRecord->R8,
(void *)info->ContextRecord->R9,
(void *)info->ContextRecord->R10,
(void *)info->ContextRecord->R11);
fprintf(stderr, "R12=%p R13=%p R14=%p R15=%p\n",
(void *)info->ContextRecord->R12,
(void *)info->ContextRecord->R13,
(void *)info->ContextRecord->R14,
(void *)info->ContextRecord->R15);
#else
fprintf(stderr, "EAX=%p EBX=%p ECX=%p EDX=%p\n",
(void *)info->ContextRecord->Eax,
(void *)info->ContextRecord->Ebx,
(void *)info->ContextRecord->Ecx,
(void *)info->ContextRecord->Edx);
fprintf(stderr, "ESI=%p EDI=%p EBP=%p ESP=%p\n",
(void *)info->ContextRecord->Esi,
(void *)info->ContextRecord->Edi,
(void *)info->ContextRecord->Ebp,
(void *)info->ContextRecord->Esp);
#endif
// reprint the actual exception address
fprintf(stderr, "-----------------------------------------------------\n");
fprintf(stderr, "Stack crawl:\n");
diagnostics->print_stacktrace(info->ContextRecord, GetCurrentThread());
// flush stderr, so the data is actually written when output is being redirected
fflush(stderr);
// exit
return EXCEPTION_CONTINUE_SEARCH;
}
static LONG CALLBACK exception_filter(struct _EXCEPTION_POINTERS *info)
{
static const struct
{
DWORD code;
const char *string;
} exception_table[] =
{
{ EXCEPTION_ACCESS_VIOLATION, "ACCESS VIOLATION" },
{ EXCEPTION_DATATYPE_MISALIGNMENT, "DATATYPE MISALIGNMENT" },
{ EXCEPTION_BREAKPOINT, "BREAKPOINT" },
{ EXCEPTION_SINGLE_STEP, "SINGLE STEP" },
{ EXCEPTION_ARRAY_BOUNDS_EXCEEDED, "ARRAY BOUNDS EXCEEDED" },
{ EXCEPTION_FLT_DENORMAL_OPERAND, "FLOAT DENORMAL OPERAND" },
{ EXCEPTION_FLT_DIVIDE_BY_ZERO, "FLOAT DIVIDE BY ZERO" },
{ EXCEPTION_FLT_INEXACT_RESULT, "FLOAT INEXACT RESULT" },
{ EXCEPTION_FLT_INVALID_OPERATION, "FLOAT INVALID OPERATION" },
{ EXCEPTION_FLT_OVERFLOW, "FLOAT OVERFLOW" },
{ EXCEPTION_FLT_STACK_CHECK, "FLOAT STACK CHECK" },
{ EXCEPTION_FLT_UNDERFLOW, "FLOAT UNDERFLOW" },
{ EXCEPTION_INT_DIVIDE_BY_ZERO, "INTEGER DIVIDE BY ZERO" },
{ EXCEPTION_INT_OVERFLOW, "INTEGER OVERFLOW" },
{ EXCEPTION_PRIV_INSTRUCTION, "PRIVILEGED INSTRUCTION" },
{ EXCEPTION_IN_PAGE_ERROR, "IN PAGE ERROR" },
{ EXCEPTION_ILLEGAL_INSTRUCTION, "ILLEGAL INSTRUCTION" },
{ EXCEPTION_NONCONTINUABLE_EXCEPTION,"NONCONTINUABLE EXCEPTION" },
{ EXCEPTION_STACK_OVERFLOW, "STACK OVERFLOW" },
{ EXCEPTION_INVALID_DISPOSITION, "INVALID DISPOSITION" },
{ EXCEPTION_GUARD_PAGE, "GUARD PAGE VIOLATION" },
{ EXCEPTION_INVALID_HANDLE, "INVALID HANDLE" },
{ 0, "UNKNOWN EXCEPTION" }
};
static int already_hit = 0;
int i;
// if we're hitting this recursively, just exit
if (already_hit)
return EXCEPTION_CONTINUE_SEARCH;
already_hit = 1;
// flush any debugging traces that were live
debugger_flush_all_traces_on_abnormal_exit();
// find our man
for (i = 0; exception_table[i].code != 0; i++)
if (info->ExceptionRecord->ExceptionCode == exception_table[i].code)
break;
// print the exception type and address
fprintf(stderr, "\n-----------------------------------------------------\n");
fprintf(stderr, "Exception at EIP=%p%s: %s\n", info->ExceptionRecord->ExceptionAddress,
lookup_symbol((FPTR)info->ExceptionRecord->ExceptionAddress), exception_table[i].string);
// for access violations, print more info
if (info->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION)
fprintf(stderr, "While attempting to %s memory at %p\n",
info->ExceptionRecord->ExceptionInformation[0] ? "write" : "read",
(void *)info->ExceptionRecord->ExceptionInformation[1]);
// print the state of the CPU
fprintf(stderr, "-----------------------------------------------------\n");
#ifdef PTR64
fprintf(stderr, "RAX=%p RBX=%p RCX=%p RDX=%p\n",
(void *)info->ContextRecord->Rax,
(void *)info->ContextRecord->Rbx,
(void *)info->ContextRecord->Rcx,
(void *)info->ContextRecord->Rdx);
fprintf(stderr, "RSI=%p RDI=%p RBP=%p RSP=%p\n",
(void *)info->ContextRecord->Rsi,
(void *)info->ContextRecord->Rdi,
(void *)info->ContextRecord->Rbp,
(void *)info->ContextRecord->Rsp);
fprintf(stderr, " R8=%p R9=%p R10=%p R11=%p\n",
(void *)info->ContextRecord->R8,
(void *)info->ContextRecord->R9,
(void *)info->ContextRecord->R10,
(void *)info->ContextRecord->R11);
fprintf(stderr, "R12=%p R13=%p R14=%p R15=%p\n",
(void *)info->ContextRecord->R12,
(void *)info->ContextRecord->R13,
(void *)info->ContextRecord->R14,
(void *)info->ContextRecord->R15);
#else
fprintf(stderr, "EAX=%p EBX=%p ECX=%p EDX=%p\n",
(void *)info->ContextRecord->Eax,
(void *)info->ContextRecord->Ebx,
(void *)info->ContextRecord->Ecx,
(void *)info->ContextRecord->Edx);
fprintf(stderr, "ESI=%p EDI=%p EBP=%p ESP=%p\n",
(void *)info->ContextRecord->Esi,
(void *)info->ContextRecord->Edi,
(void *)info->ContextRecord->Ebp,
(void *)info->ContextRecord->Esp);
#endif
if (image_nt_header != NULL &&
stack_walk_64 != NULL &&
sym_initialize != NULL &&
sym_function_table_access_64 != NULL &&
sym_get_module_base_64 != NULL &&
sym_from_addr != NULL &&
get_module_information != NULL)
{
CONTEXT context = *info->ContextRecord;
STACKFRAME64 stackframe;
// initialize the symbol lookup
sym_initialize(GetCurrentProcess(), NULL, TRUE);
// reprint the actual exception address
fprintf(stderr, "-----------------------------------------------------\n");
fprintf(stderr, "Stack crawl:\n");
memset(&stackframe, 0, sizeof(stackframe));
#ifdef PTR64
stackframe.AddrPC.Offset = context.Rip;
stackframe.AddrFrame.Offset = context.Rsp;
stackframe.AddrStack.Offset = context.Rsp;
#else
stackframe.AddrPC.Offset = context.Eip;
stackframe.AddrFrame.Offset = context.Ebp;
stackframe.AddrStack.Offset = context.Esp;
#endif
stackframe.AddrPC.Mode = AddrModeFlat;
stackframe.AddrFrame.Mode = AddrModeFlat;
stackframe.AddrStack.Mode = AddrModeFlat;
while (stack_walk_64(
#ifdef PTR64
IMAGE_FILE_MACHINE_AMD64,
#else
IMAGE_FILE_MACHINE_I386,
#endif
GetCurrentProcess(),
GetCurrentThread(),
&stackframe,
&context,
NULL,
sym_function_table_access_64,
sym_get_module_base_64,
NULL))
{
fprintf(stderr, " %p: %p%s\n", (void *)stackframe.AddrFrame.Offset, (void *)stackframe.AddrPC.Offset, lookup_symbol((FPTR)stackframe.AddrPC.Offset));
}
}
// exit
return EXCEPTION_CONTINUE_SEARCH;
}
