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reactos/rostests/winetests/ntdll/exception.c
Amine Khaldi 4aec35aa7b [NTDLL_WINETEST] 
* Sync with Wine 1.3.29.

svn path=/trunk/; revision=53975
2011-10-03 19:29:29 +00:00

1543 lines
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/*
* Unit test suite for ntdll exceptions
*
* Copyright 2005 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <stdio.h>
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x500 /* For NTSTATUS */
#endif
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winnt.h"
#include "winreg.h"
#include "winternl.h"
#include "wine/exception.h"
#include "wine/test.h"
static void *code_mem;
static struct _TEB * (WINAPI *pNtCurrentTeb)(void);
static NTSTATUS (WINAPI *pNtGetContextThread)(HANDLE,CONTEXT*);
static NTSTATUS (WINAPI *pNtSetContextThread)(HANDLE,CONTEXT*);
static NTSTATUS (WINAPI *pRtlRaiseException)(EXCEPTION_RECORD *rec);
static PVOID (WINAPI *pRtlAddVectoredExceptionHandler)(ULONG first, PVECTORED_EXCEPTION_HANDLER func);
static ULONG (WINAPI *pRtlRemoveVectoredExceptionHandler)(PVOID handler);
static NTSTATUS (WINAPI *pNtReadVirtualMemory)(HANDLE, const void*, void*, SIZE_T, SIZE_T*);
static NTSTATUS (WINAPI *pNtTerminateProcess)(HANDLE handle, LONG exit_code);
static NTSTATUS (WINAPI *pNtQueryInformationProcess)(HANDLE, PROCESSINFOCLASS, PVOID, ULONG, PULONG);
static NTSTATUS (WINAPI *pNtSetInformationProcess)(HANDLE, PROCESSINFOCLASS, PVOID, ULONG);
static BOOL (WINAPI *pIsWow64Process)(HANDLE, PBOOL);
#ifdef __i386__
#ifndef __WINE_WINTRNL_H
#define ProcessExecuteFlags 0x22
#define MEM_EXECUTE_OPTION_DISABLE 0x01
#define MEM_EXECUTE_OPTION_ENABLE 0x02
#define MEM_EXECUTE_OPTION_PERMANENT 0x08
#endif
static int my_argc;
static char** my_argv;
static int test_stage;
static BOOL is_wow64;
/* Test various instruction combinations that cause a protection fault on the i386,
* and check what the resulting exception looks like.
*/
static const struct exception
{
BYTE code[18]; /* asm code */
BYTE offset; /* offset of faulting instruction */
BYTE length; /* length of faulting instruction */
BOOL wow64_broken; /* broken on Wow64, should be skipped */
NTSTATUS status; /* expected status code */
DWORD nb_params; /* expected number of parameters */
DWORD params[4]; /* expected parameters */
NTSTATUS alt_status; /* alternative status code */
DWORD alt_nb_params; /* alternative number of parameters */
DWORD alt_params[4]; /* alternative parameters */
} exceptions[] =
{
/* 0 */
/* test some privileged instructions */
{ { 0xfb, 0xc3 }, /* 0: sti; ret */
0, 1, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0x6c, 0xc3 }, /* 1: insb (%dx); ret */
0, 1, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0x6d, 0xc3 }, /* 2: insl (%dx); ret */
0, 1, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0x6e, 0xc3 }, /* 3: outsb (%dx); ret */
0, 1, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0x6f, 0xc3 }, /* 4: outsl (%dx); ret */
0, 1, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
/* 5 */
{ { 0xe4, 0x11, 0xc3 }, /* 5: inb $0x11,%al; ret */
0, 2, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0xe5, 0x11, 0xc3 }, /* 6: inl $0x11,%eax; ret */
0, 2, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0xe6, 0x11, 0xc3 }, /* 7: outb %al,$0x11; ret */
0, 2, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0xe7, 0x11, 0xc3 }, /* 8: outl %eax,$0x11; ret */
0, 2, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0xed, 0xc3 }, /* 9: inl (%dx),%eax; ret */
0, 1, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
/* 10 */
{ { 0xee, 0xc3 }, /* 10: outb %al,(%dx); ret */
0, 1, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0xef, 0xc3 }, /* 11: outl %eax,(%dx); ret */
0, 1, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0xf4, 0xc3 }, /* 12: hlt; ret */
0, 1, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0xfa, 0xc3 }, /* 13: cli; ret */
0, 1, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
/* test long jump to invalid selector */
{ { 0xea, 0, 0, 0, 0, 0, 0, 0xc3 }, /* 14: ljmp $0,$0; ret */
0, 7, FALSE, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } },
/* 15 */
/* test iret to invalid selector */
{ { 0x6a, 0x00, 0x6a, 0x00, 0x6a, 0x00, 0xcf, 0x83, 0xc4, 0x0c, 0xc3 },
/* 15: pushl $0; pushl $0; pushl $0; iret; addl $12,%esp; ret */
6, 1, FALSE, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } },
/* test loading an invalid selector */
{ { 0xb8, 0xef, 0xbe, 0x00, 0x00, 0x8e, 0xe8, 0xc3 }, /* 16: mov $beef,%ax; mov %ax,%gs; ret */
5, 2, FALSE, STATUS_ACCESS_VIOLATION, 2, { 0, 0xbee8 } }, /* 0xbee8 or 0xffffffff */
/* test accessing a zero selector (%es broken on Wow64) */
{ { 0x06, 0x31, 0xc0, 0x8e, 0xc0, 0x26, 0xa1, 0, 0, 0, 0, 0x07, 0xc3 },
/* push %es; xor %eax,%eax; mov %ax,%es; mov %es:(0),%ax; pop %es; ret */
5, 6, TRUE, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } },
{ { 0x0f, 0xa8, 0x31, 0xc0, 0x8e, 0xe8, 0x65, 0xa1, 0, 0, 0, 0, 0x0f, 0xa9, 0xc3 },
/* push %gs; xor %eax,%eax; mov %ax,%gs; mov %gs:(0),%ax; pop %gs; ret */
6, 6, FALSE, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } },
/* test moving %cs -> %ss */
{ { 0x0e, 0x17, 0x58, 0xc3 }, /* pushl %cs; popl %ss; popl %eax; ret */
1, 1, FALSE, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } },
/* 20 */
/* test overlong instruction (limit is 15 bytes, 5 on Win7) */
{ { 0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0xfa,0xc3 },
0, 16, TRUE, STATUS_ILLEGAL_INSTRUCTION, 0, { 0 },
STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } },
{ { 0x64,0x64,0x64,0x64,0xfa,0xc3 },
0, 5, TRUE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
/* test invalid interrupt */
{ { 0xcd, 0xff, 0xc3 }, /* int $0xff; ret */
0, 2, FALSE, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } },
/* test moves to/from Crx */
{ { 0x0f, 0x20, 0xc0, 0xc3 }, /* movl %cr0,%eax; ret */
0, 3, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0x0f, 0x20, 0xe0, 0xc3 }, /* movl %cr4,%eax; ret */
0, 3, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
/* 25 */
{ { 0x0f, 0x22, 0xc0, 0xc3 }, /* movl %eax,%cr0; ret */
0, 3, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0x0f, 0x22, 0xe0, 0xc3 }, /* movl %eax,%cr4; ret */
0, 3, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
/* test moves to/from Drx */
{ { 0x0f, 0x21, 0xc0, 0xc3 }, /* movl %dr0,%eax; ret */
0, 3, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0x0f, 0x21, 0xc8, 0xc3 }, /* movl %dr1,%eax; ret */
0, 3, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0x0f, 0x21, 0xf8, 0xc3 }, /* movl %dr7,%eax; ret */
0, 3, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
/* 30 */
{ { 0x0f, 0x23, 0xc0, 0xc3 }, /* movl %eax,%dr0; ret */
0, 3, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0x0f, 0x23, 0xc8, 0xc3 }, /* movl %eax,%dr1; ret */
0, 3, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0x0f, 0x23, 0xf8, 0xc3 }, /* movl %eax,%dr7; ret */
0, 3, FALSE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
/* test memory reads */
{ { 0xa1, 0xfc, 0xff, 0xff, 0xff, 0xc3 }, /* movl 0xfffffffc,%eax; ret */
0, 5, FALSE, STATUS_ACCESS_VIOLATION, 2, { 0, 0xfffffffc } },
{ { 0xa1, 0xfd, 0xff, 0xff, 0xff, 0xc3 }, /* movl 0xfffffffd,%eax; ret */
0, 5, FALSE, STATUS_ACCESS_VIOLATION, 2, { 0, 0xfffffffd } },
/* 35 */
{ { 0xa1, 0xfe, 0xff, 0xff, 0xff, 0xc3 }, /* movl 0xfffffffe,%eax; ret */
0, 5, FALSE, STATUS_ACCESS_VIOLATION, 2, { 0, 0xfffffffe } },
{ { 0xa1, 0xff, 0xff, 0xff, 0xff, 0xc3 }, /* movl 0xffffffff,%eax; ret */
0, 5, FALSE, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } },
/* test memory writes */
{ { 0xa3, 0xfc, 0xff, 0xff, 0xff, 0xc3 }, /* movl %eax,0xfffffffc; ret */
0, 5, FALSE, STATUS_ACCESS_VIOLATION, 2, { 1, 0xfffffffc } },
{ { 0xa3, 0xfd, 0xff, 0xff, 0xff, 0xc3 }, /* movl %eax,0xfffffffd; ret */
0, 5, FALSE, STATUS_ACCESS_VIOLATION, 2, { 1, 0xfffffffd } },
{ { 0xa3, 0xfe, 0xff, 0xff, 0xff, 0xc3 }, /* movl %eax,0xfffffffe; ret */
0, 5, FALSE, STATUS_ACCESS_VIOLATION, 2, { 1, 0xfffffffe } },
/* 40 */
{ { 0xa3, 0xff, 0xff, 0xff, 0xff, 0xc3 }, /* movl %eax,0xffffffff; ret */
0, 5, FALSE, STATUS_ACCESS_VIOLATION, 2, { 1, 0xffffffff } },
/* test exception with cleared %ds and %es (broken on Wow64) */
{ { 0x1e, 0x06, 0x31, 0xc0, 0x8e, 0xd8, 0x8e, 0xc0, 0xfa, 0x07, 0x1f, 0xc3 },
/* push %ds; push %es; xorl %eax,%eax; mov %ax,%ds; mov %ax,%es; cli; pop %es; pop %ds; ret */
8, 1, TRUE, STATUS_PRIVILEGED_INSTRUCTION, 0 },
{ { 0xf1, 0x90, 0xc3 }, /* icebp; nop; ret */
1, 1, FALSE, STATUS_SINGLE_STEP, 0 },
};
static int got_exception;
static BOOL have_vectored_api;
static void run_exception_test(void *handler, const void* context,
const void *code, unsigned int code_size,
DWORD access)
{
struct {
EXCEPTION_REGISTRATION_RECORD frame;
const void *context;
} exc_frame;
void (*func)(void) = code_mem;
DWORD oldaccess, oldaccess2;
exc_frame.frame.Handler = handler;
exc_frame.frame.Prev = pNtCurrentTeb()->Tib.ExceptionList;
exc_frame.context = context;
memcpy(code_mem, code, code_size);
if(access)
VirtualProtect(code_mem, code_size, access, &oldaccess);
pNtCurrentTeb()->Tib.ExceptionList = &exc_frame.frame;
func();
pNtCurrentTeb()->Tib.ExceptionList = exc_frame.frame.Prev;
if(access)
VirtualProtect(code_mem, code_size, oldaccess, &oldaccess2);
}
static LONG CALLBACK rtlraiseexception_vectored_handler(EXCEPTION_POINTERS *ExceptionInfo)
{
PCONTEXT context = ExceptionInfo->ContextRecord;
PEXCEPTION_RECORD rec = ExceptionInfo->ExceptionRecord;
trace("vect. handler %08x addr:%p context.Eip:%x\n", rec->ExceptionCode,
rec->ExceptionAddress, context->Eip);
ok(rec->ExceptionAddress == (char *)code_mem + 0xb, "ExceptionAddress at %p instead of %p\n",
rec->ExceptionAddress, (char *)code_mem + 0xb);
if (pNtCurrentTeb()->Peb->BeingDebugged)
ok((void *)context->Eax == pRtlRaiseException ||
broken( is_wow64 && context->Eax == 0xf00f00f1 ), /* broken on vista */
"debugger managed to modify Eax to %x should be %p\n",
context->Eax, pRtlRaiseException);
/* check that context.Eip is fixed up only for EXCEPTION_BREAKPOINT
* even if raised by RtlRaiseException
*/
if(rec->ExceptionCode == EXCEPTION_BREAKPOINT)
{
ok(context->Eip == (DWORD)code_mem + 0xa ||
broken(context->Eip == (DWORD)code_mem + 0xb), /* win2k3 */
"Eip at %x instead of %x or %x\n", context->Eip,
(DWORD)code_mem + 0xa, (DWORD)code_mem + 0xb);
}
else
{
ok(context->Eip == (DWORD)code_mem + 0xb, "Eip at %x instead of %x\n",
context->Eip, (DWORD)code_mem + 0xb);
}
/* test if context change is preserved from vectored handler to stack handlers */
context->Eax = 0xf00f00f0;
return EXCEPTION_CONTINUE_SEARCH;
}
static DWORD rtlraiseexception_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
trace( "exception: %08x flags:%x addr:%p context: Eip:%x\n",
rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress, context->Eip );
ok(rec->ExceptionAddress == (char *)code_mem + 0xb, "ExceptionAddress at %p instead of %p\n",
rec->ExceptionAddress, (char *)code_mem + 0xb);
/* check that context.Eip is fixed up only for EXCEPTION_BREAKPOINT
* even if raised by RtlRaiseException
*/
if(rec->ExceptionCode == EXCEPTION_BREAKPOINT)
{
ok(context->Eip == (DWORD)code_mem + 0xa ||
broken(context->Eip == (DWORD)code_mem + 0xb), /* win2k3 */
"Eip at %x instead of %x or %x\n", context->Eip,
(DWORD)code_mem + 0xa, (DWORD)code_mem + 0xb);
}
else
{
ok(context->Eip == (DWORD)code_mem + 0xb, "Eip at %x instead of %x\n",
context->Eip, (DWORD)code_mem + 0xb);
}
if(have_vectored_api)
ok(context->Eax == 0xf00f00f0, "Eax is %x, should have been set to 0xf00f00f0 in vectored handler\n",
context->Eax);
/* give the debugger a chance to examine the state a second time */
/* without the exception handler changing Eip */
if (test_stage == 2)
return ExceptionContinueSearch;
/* Eip in context is decreased by 1
* Increase it again, else execution will continue in the middle of a instruction */
if(rec->ExceptionCode == EXCEPTION_BREAKPOINT && (context->Eip == (DWORD)code_mem + 0xa))
context->Eip += 1;
return ExceptionContinueExecution;
}
static const BYTE call_one_arg_code[] = {
0x8b, 0x44, 0x24, 0x08, /* mov 0x8(%esp),%eax */
0x50, /* push %eax */
0x8b, 0x44, 0x24, 0x08, /* mov 0x8(%esp),%eax */
0xff, 0xd0, /* call *%eax */
0x90, /* nop */
0x90, /* nop */
0x90, /* nop */
0x90, /* nop */
0xc3, /* ret */
};
static void run_rtlraiseexception_test(DWORD exceptioncode)
{
EXCEPTION_REGISTRATION_RECORD frame;
EXCEPTION_RECORD record;
PVOID vectored_handler = NULL;
void (*func)(void* function, EXCEPTION_RECORD* record) = code_mem;
record.ExceptionCode = exceptioncode;
record.ExceptionFlags = 0;
record.ExceptionRecord = NULL;
record.ExceptionAddress = NULL; /* does not matter, copied return address */
record.NumberParameters = 0;
frame.Handler = rtlraiseexception_handler;
frame.Prev = pNtCurrentTeb()->Tib.ExceptionList;
memcpy(code_mem, call_one_arg_code, sizeof(call_one_arg_code));
pNtCurrentTeb()->Tib.ExceptionList = &frame;
if (have_vectored_api)
{
vectored_handler = pRtlAddVectoredExceptionHandler(TRUE, &rtlraiseexception_vectored_handler);
ok(vectored_handler != 0, "RtlAddVectoredExceptionHandler failed\n");
}
func(pRtlRaiseException, &record);
ok( record.ExceptionAddress == (char *)code_mem + 0x0b,
"address set to %p instead of %p\n", record.ExceptionAddress, (char *)code_mem + 0x0b );
if (have_vectored_api)
pRtlRemoveVectoredExceptionHandler(vectored_handler);
pNtCurrentTeb()->Tib.ExceptionList = frame.Prev;
}
static void test_rtlraiseexception(void)
{
if (!pRtlRaiseException)
{
skip("RtlRaiseException not found\n");
return;
}
/* test without debugger */
run_rtlraiseexception_test(0x12345);
run_rtlraiseexception_test(EXCEPTION_BREAKPOINT);
run_rtlraiseexception_test(EXCEPTION_INVALID_HANDLE);
}
static DWORD handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
const struct exception *except = *(const struct exception **)(frame + 1);
unsigned int i, entry = except - exceptions;
got_exception++;
trace( "exception %u: %x flags:%x addr:%p\n",
entry, rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress );
ok( rec->ExceptionCode == except->status ||
(except->alt_status != 0 && rec->ExceptionCode == except->alt_status),
"%u: Wrong exception code %x/%x\n", entry, rec->ExceptionCode, except->status );
ok( rec->ExceptionAddress == (char*)code_mem + except->offset,
"%u: Wrong exception address %p/%p\n", entry,
rec->ExceptionAddress, (char*)code_mem + except->offset );
if (except->alt_status == 0 || rec->ExceptionCode != except->alt_status)
{
ok( rec->NumberParameters == except->nb_params,
"%u: Wrong number of parameters %u/%u\n", entry, rec->NumberParameters, except->nb_params );
}
else
{
ok( rec->NumberParameters == except->alt_nb_params,
"%u: Wrong number of parameters %u/%u\n", entry, rec->NumberParameters, except->nb_params );
}
/* Most CPUs (except Intel Core apparently) report a segment limit violation */
/* instead of page faults for accesses beyond 0xffffffff */
if (except->nb_params == 2 && except->params[1] >= 0xfffffffd)
{
if (rec->ExceptionInformation[0] == 0 && rec->ExceptionInformation[1] == 0xffffffff)
goto skip_params;
}
/* Seems that both 0xbee8 and 0xfffffffff can be returned in windows */
if (except->nb_params == 2 && rec->NumberParameters == 2
&& except->params[1] == 0xbee8 && rec->ExceptionInformation[1] == 0xffffffff
&& except->params[0] == rec->ExceptionInformation[0])
{
goto skip_params;
}
if (except->alt_status == 0 || rec->ExceptionCode != except->alt_status)
{
for (i = 0; i < rec->NumberParameters; i++)
ok( rec->ExceptionInformation[i] == except->params[i],
"%u: Wrong parameter %d: %lx/%x\n",
entry, i, rec->ExceptionInformation[i], except->params[i] );
}
else
{
for (i = 0; i < rec->NumberParameters; i++)
ok( rec->ExceptionInformation[i] == except->alt_params[i],
"%u: Wrong parameter %d: %lx/%x\n",
entry, i, rec->ExceptionInformation[i], except->alt_params[i] );
}
skip_params:
/* don't handle exception if it's not the address we expected */
if (rec->ExceptionAddress != (char*)code_mem + except->offset) return ExceptionContinueSearch;
context->Eip += except->length;
return ExceptionContinueExecution;
}
static void test_prot_fault(void)
{
unsigned int i;
for (i = 0; i < sizeof(exceptions)/sizeof(exceptions[0]); i++)
{
if (is_wow64 && exceptions[i].wow64_broken && !strcmp( winetest_platform, "windows" ))
{
skip( "Exception %u broken on Wow64\n", i );
continue;
}
got_exception = 0;
run_exception_test(handler, &exceptions[i], &exceptions[i].code,
sizeof(exceptions[i].code), 0);
if (!i && !got_exception)
{
trace( "No exception, assuming win9x, no point in testing further\n" );
break;
}
ok( got_exception == (exceptions[i].status != 0),
"%u: bad exception count %d\n", i, got_exception );
}
}
struct dbgreg_test {
DWORD dr0, dr1, dr2, dr3, dr6, dr7;
};
/* test handling of debug registers */
static DWORD dreg_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
const struct dbgreg_test *test = *(const struct dbgreg_test **)(frame + 1);
context->Eip += 2; /* Skips the popl (%eax) */
context->Dr0 = test->dr0;
context->Dr1 = test->dr1;
context->Dr2 = test->dr2;
context->Dr3 = test->dr3;
context->Dr6 = test->dr6;
context->Dr7 = test->dr7;
return ExceptionContinueExecution;
}
#define CHECK_DEBUG_REG(n, m) \
ok((ctx.Dr##n & m) == test->dr##n, "(%d) failed to set debug register " #n " to %x, got %x\n", \
test_num, test->dr##n, ctx.Dr##n)
static void check_debug_registers(int test_num, const struct dbgreg_test *test)
{
CONTEXT ctx;
NTSTATUS status;
ctx.ContextFlags = CONTEXT_DEBUG_REGISTERS;
status = pNtGetContextThread(GetCurrentThread(), &ctx);
ok(status == STATUS_SUCCESS, "NtGetContextThread failed with %x\n", status);
CHECK_DEBUG_REG(0, ~0);
CHECK_DEBUG_REG(1, ~0);
CHECK_DEBUG_REG(2, ~0);
CHECK_DEBUG_REG(3, ~0);
CHECK_DEBUG_REG(6, 0x0f);
CHECK_DEBUG_REG(7, ~0xdc00);
}
static const BYTE segfault_code[5] = {
0x31, 0xc0, /* xor %eax,%eax */
0x8f, 0x00, /* popl (%eax) - cause exception */
0xc3 /* ret */
};
/* test the single step exception behaviour */
static DWORD single_step_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
got_exception++;
ok (!(context->EFlags & 0x100), "eflags has single stepping bit set\n");
if( got_exception < 3)
context->EFlags |= 0x100; /* single step until popf instruction */
else {
/* show that the last single step exception on the popf instruction
* (which removed the TF bit), still is a EXCEPTION_SINGLE_STEP exception */
ok( rec->ExceptionCode == EXCEPTION_SINGLE_STEP,
"exception is not EXCEPTION_SINGLE_STEP: %x\n", rec->ExceptionCode);
}
return ExceptionContinueExecution;
}
static const BYTE single_stepcode[] = {
0x9c, /* pushf */
0x58, /* pop %eax */
0x0d,0,1,0,0, /* or $0x100,%eax */
0x50, /* push %eax */
0x9d, /* popf */
0x35,0,1,0,0, /* xor $0x100,%eax */
0x50, /* push %eax */
0x9d, /* popf */
0xc3
};
/* Test the alignment check (AC) flag handling. */
static const BYTE align_check_code[] = {
0x55, /* push %ebp */
0x89,0xe5, /* mov %esp,%ebp */
0x9c, /* pushf */
0x58, /* pop %eax */
0x0d,0,0,4,0, /* or $0x40000,%eax */
0x50, /* push %eax */
0x9d, /* popf */
0x89,0xe0, /* mov %esp, %eax */
0x8b,0x40,0x1, /* mov 0x1(%eax), %eax - cause exception */
0x9c, /* pushf */
0x58, /* pop %eax */
0x35,0,0,4,0, /* xor $0x40000,%eax */
0x50, /* push %eax */
0x9d, /* popf */
0x5d, /* pop %ebp */
0xc3, /* ret */
};
static DWORD align_check_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
ok (!(context->EFlags & 0x40000), "eflags has AC bit set\n");
got_exception++;
return ExceptionContinueExecution;
}
/* Test the direction flag handling. */
static const BYTE direction_flag_code[] = {
0x55, /* push %ebp */
0x89,0xe5, /* mov %esp,%ebp */
0xfd, /* std */
0xfa, /* cli - cause exception */
0x5d, /* pop %ebp */
0xc3, /* ret */
};
static DWORD direction_flag_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
#ifdef __GNUC__
unsigned int flags;
__asm__("pushfl; popl %0; cld" : "=r" (flags) );
/* older windows versions don't clear DF properly so don't test */
if (flags & 0x400) trace( "eflags has DF bit set\n" );
#endif
ok( context->EFlags & 0x400, "context eflags has DF bit cleared\n" );
got_exception++;
context->Eip++; /* skip cli */
context->EFlags &= ~0x400; /* make sure it is cleared on return */
return ExceptionContinueExecution;
}
/* test single stepping over hardware breakpoint */
static DWORD bpx_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
got_exception++;
ok( rec->ExceptionCode == EXCEPTION_SINGLE_STEP,
"wrong exception code: %x\n", rec->ExceptionCode);
if(got_exception == 1) {
/* hw bp exception on first nop */
ok( context->Eip == (DWORD)code_mem, "eip is wrong: %x instead of %x\n",
context->Eip, (DWORD)code_mem);
ok( (context->Dr6 & 0xf) == 1, "B0 flag is not set in Dr6\n");
ok( !(context->Dr6 & 0x4000), "BS flag is set in Dr6\n");
context->Dr0 = context->Dr0 + 1; /* set hw bp again on next instruction */
context->EFlags |= 0x100; /* enable single stepping */
} else if( got_exception == 2) {
/* single step exception on second nop */
ok( context->Eip == (DWORD)code_mem + 1, "eip is wrong: %x instead of %x\n",
context->Eip, (DWORD)code_mem + 1);
ok( (context->Dr6 & 0x4000), "BS flag is not set in Dr6\n");
/* depending on the win version the B0 bit is already set here as well
ok( (context->Dr6 & 0xf) == 0, "B0...3 flags in Dr6 shouldn't be set\n"); */
context->EFlags |= 0x100;
} else if( got_exception == 3) {
/* hw bp exception on second nop */
ok( context->Eip == (DWORD)code_mem + 1, "eip is wrong: %x instead of %x\n",
context->Eip, (DWORD)code_mem + 1);
ok( (context->Dr6 & 0xf) == 1, "B0 flag is not set in Dr6\n");
ok( !(context->Dr6 & 0x4000), "BS flag is set in Dr6\n");
context->Dr0 = 0; /* clear breakpoint */
context->EFlags |= 0x100;
} else {
/* single step exception on ret */
ok( context->Eip == (DWORD)code_mem + 2, "eip is wrong: %x instead of %x\n",
context->Eip, (DWORD)code_mem + 2);
ok( (context->Dr6 & 0xf) == 0, "B0...3 flags in Dr6 shouldn't be set\n");
ok( (context->Dr6 & 0x4000), "BS flag is not set in Dr6\n");
}
context->Dr6 = 0; /* clear status register */
return ExceptionContinueExecution;
}
static const BYTE dummy_code[] = { 0x90, 0x90, 0xc3 }; /* nop, nop, ret */
/* test int3 handling */
static DWORD int3_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
ok( rec->ExceptionAddress == code_mem, "exception address not at: %p, but at %p\n",
code_mem, rec->ExceptionAddress);
ok( context->Eip == (DWORD)code_mem, "eip not at: %p, but at %#x\n", code_mem, context->Eip);
if(context->Eip == (DWORD)code_mem) context->Eip++; /* skip breakpoint */
return ExceptionContinueExecution;
}
static const BYTE int3_code[] = { 0xCC, 0xc3 }; /* int 3, ret */
static void test_exceptions(void)
{
CONTEXT ctx;
NTSTATUS res;
struct dbgreg_test dreg_test;
if (!pNtGetContextThread || !pNtSetContextThread)
{
skip( "NtGetContextThread/NtSetContextThread not found\n" );
return;
}
/* test handling of debug registers */
memset(&dreg_test, 0, sizeof(dreg_test));
dreg_test.dr0 = 0x42424240;
dreg_test.dr2 = 0x126bb070;
dreg_test.dr3 = 0x0badbad0;
dreg_test.dr7 = 0xffff0115;
run_exception_test(dreg_handler, &dreg_test, &segfault_code, sizeof(segfault_code), 0);
check_debug_registers(1, &dreg_test);
dreg_test.dr0 = 0x42424242;
dreg_test.dr2 = 0x100f0fe7;
dreg_test.dr3 = 0x0abebabe;
dreg_test.dr7 = 0x115;
run_exception_test(dreg_handler, &dreg_test, &segfault_code, sizeof(segfault_code), 0);
check_debug_registers(2, &dreg_test);
/* test single stepping behavior */
got_exception = 0;
run_exception_test(single_step_handler, NULL, &single_stepcode, sizeof(single_stepcode), 0);
ok(got_exception == 3, "expected 3 single step exceptions, got %d\n", got_exception);
/* test alignment exceptions */
got_exception = 0;
run_exception_test(align_check_handler, NULL, align_check_code, sizeof(align_check_code), 0);
ok(got_exception == 0, "got %d alignment faults, expected 0\n", got_exception);
/* test direction flag */
got_exception = 0;
run_exception_test(direction_flag_handler, NULL, direction_flag_code, sizeof(direction_flag_code), 0);
ok(got_exception == 1, "got %d exceptions, expected 1\n", got_exception);
/* test single stepping over hardware breakpoint */
memset(&ctx, 0, sizeof(ctx));
ctx.Dr0 = (DWORD) code_mem; /* set hw bp on first nop */
ctx.Dr7 = 3;
ctx.ContextFlags = CONTEXT_DEBUG_REGISTERS;
res = pNtSetContextThread( GetCurrentThread(), &ctx);
ok( res == STATUS_SUCCESS, "NtSetContextThread failed with %x\n", res);
got_exception = 0;
run_exception_test(bpx_handler, NULL, dummy_code, sizeof(dummy_code), 0);
ok( got_exception == 4,"expected 4 exceptions, got %d\n", got_exception);
/* test int3 handling */
run_exception_test(int3_handler, NULL, int3_code, sizeof(int3_code), 0);
}
static void test_debugger(void)
{
char cmdline[MAX_PATH];
PROCESS_INFORMATION pi;
STARTUPINFO si = { 0 };
DEBUG_EVENT de;
DWORD continuestatus;
PVOID code_mem_address = NULL;
NTSTATUS status;
SIZE_T size_read;
BOOL ret;
int counter = 0;
si.cb = sizeof(si);
if(!pNtGetContextThread || !pNtSetContextThread || !pNtReadVirtualMemory || !pNtTerminateProcess)
{
skip("NtGetContextThread, NtSetContextThread, NtReadVirtualMemory or NtTerminateProcess not found\n");
return;
}
sprintf(cmdline, "%s %s %s %p", my_argv[0], my_argv[1], "debuggee", &test_stage);
ret = CreateProcess(NULL, cmdline, NULL, NULL, FALSE, DEBUG_PROCESS, NULL, NULL, &si, &pi);
ok(ret, "could not create child process error: %u\n", GetLastError());
if (!ret)
return;
do
{
continuestatus = DBG_CONTINUE;
ok(WaitForDebugEvent(&de, INFINITE), "reading debug event\n");
if (de.dwThreadId != pi.dwThreadId)
{
trace("event %d not coming from main thread, ignoring\n", de.dwDebugEventCode);
ContinueDebugEvent(de.dwProcessId, de.dwThreadId, DBG_CONTINUE);
continue;
}
if (de.dwDebugEventCode == CREATE_PROCESS_DEBUG_EVENT)
{
if(de.u.CreateProcessInfo.lpBaseOfImage != pNtCurrentTeb()->Peb->ImageBaseAddress)
{
skip("child process loaded at different address, terminating it\n");
pNtTerminateProcess(pi.hProcess, 0);
}
}
else if (de.dwDebugEventCode == EXCEPTION_DEBUG_EVENT)
{
CONTEXT ctx;
int stage;
counter++;
status = pNtReadVirtualMemory(pi.hProcess, &code_mem, &code_mem_address,
sizeof(code_mem_address), &size_read);
ok(!status,"NtReadVirtualMemory failed with 0x%x\n", status);
status = pNtReadVirtualMemory(pi.hProcess, &test_stage, &stage,
sizeof(stage), &size_read);
ok(!status,"NtReadVirtualMemory failed with 0x%x\n", status);
ctx.ContextFlags = CONTEXT_FULL;
status = pNtGetContextThread(pi.hThread, &ctx);
ok(!status, "NtGetContextThread failed with 0x%x\n", status);
trace("exception 0x%x at %p firstchance=%d Eip=0x%x, Eax=0x%x\n",
de.u.Exception.ExceptionRecord.ExceptionCode,
de.u.Exception.ExceptionRecord.ExceptionAddress, de.u.Exception.dwFirstChance, ctx.Eip, ctx.Eax);
if (counter > 100)
{
ok(FALSE, "got way too many exceptions, probably caught in a infinite loop, terminating child\n");
pNtTerminateProcess(pi.hProcess, 1);
}
else if (counter >= 2) /* skip startup breakpoint */
{
if (stage == 1)
{
ok((char *)ctx.Eip == (char *)code_mem_address + 0xb, "Eip at %x instead of %p\n",
ctx.Eip, (char *)code_mem_address + 0xb);
/* setting the context from debugger does not affect the context, the exception handlers gets */
/* uncomment once wine is fixed */
/* ctx.Eip = 0x12345; */
ctx.Eax = 0xf00f00f1;
/* let the debuggee handle the exception */
continuestatus = DBG_EXCEPTION_NOT_HANDLED;
}
else if (stage == 2)
{
if (de.u.Exception.dwFirstChance)
{
/* debugger gets first chance exception with unmodified ctx.Eip */
ok((char *)ctx.Eip == (char *)code_mem_address + 0xb, "Eip at 0x%x instead of %p\n",
ctx.Eip, (char *)code_mem_address + 0xb);
/* setting the context from debugger does not affect the context, the exception handlers gets */
/* uncomment once wine is fixed */
/* ctx.Eip = 0x12345; */
ctx.Eax = 0xf00f00f1;
/* pass exception to debuggee
* exception will not be handled and
* a second chance exception will be raised */
continuestatus = DBG_EXCEPTION_NOT_HANDLED;
}
else
{
/* debugger gets context after exception handler has played with it */
/* ctx.Eip is the same value the exception handler got */
if (de.u.Exception.ExceptionRecord.ExceptionCode == EXCEPTION_BREAKPOINT)
{
ok((char *)ctx.Eip == (char *)code_mem_address + 0xa ||
broken(is_wow64 && (char *)ctx.Eip == (char *)code_mem_address + 0xb),
"Eip at 0x%x instead of %p\n",
ctx.Eip, (char *)code_mem_address + 0xa);
/* need to fixup Eip for debuggee */
if ((char *)ctx.Eip == (char *)code_mem_address + 0xa)
ctx.Eip += 1;
}
else
ok((char *)ctx.Eip == (char *)code_mem_address + 0xb, "Eip at 0x%x instead of %p\n",
ctx.Eip, (char *)code_mem_address + 0xb);
/* here we handle exception */
}
}
else
ok(FALSE, "unexpected stage %x\n", stage);
status = pNtSetContextThread(pi.hThread, &ctx);
ok(!status, "NtSetContextThread failed with 0x%x\n", status);
}
}
ContinueDebugEvent(de.dwProcessId, de.dwThreadId, continuestatus);
} while (de.dwDebugEventCode != EXIT_PROCESS_DEBUG_EVENT);
winetest_wait_child_process( pi.hProcess );
ret = CloseHandle(pi.hThread);
ok(ret, "error %u\n", GetLastError());
ret = CloseHandle(pi.hProcess);
ok(ret, "error %u\n", GetLastError());
return;
}
static DWORD simd_fault_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
int *stage = *(int **)(frame + 1);
got_exception++;
if( *stage == 1) {
/* fault while executing sse instruction */
context->Eip += 3; /* skip addps */
return ExceptionContinueExecution;
}
/* stage 2 - divide by zero fault */
if( rec->ExceptionCode == EXCEPTION_ILLEGAL_INSTRUCTION)
skip("system doesn't support SIMD exceptions\n");
else {
ok( rec->ExceptionCode == STATUS_FLOAT_MULTIPLE_TRAPS,
"exception code: %#x, should be %#x\n",
rec->ExceptionCode, STATUS_FLOAT_MULTIPLE_TRAPS);
ok( rec->NumberParameters == 1 || broken(is_wow64 && rec->NumberParameters == 2),
"# of params: %i, should be 1\n",
rec->NumberParameters);
if( rec->NumberParameters == 1 )
ok( rec->ExceptionInformation[0] == 0, "param #1: %lx, should be 0\n", rec->ExceptionInformation[0]);
}
context->Eip += 3; /* skip divps */
return ExceptionContinueExecution;
}
static const BYTE simd_exception_test[] = {
0x83, 0xec, 0x4, /* sub $0x4, %esp */
0x0f, 0xae, 0x1c, 0x24, /* stmxcsr (%esp) */
0x66, 0x81, 0x24, 0x24, 0xff, 0xfd, /* andw $0xfdff,(%esp) * enable divide by */
0x0f, 0xae, 0x14, 0x24, /* ldmxcsr (%esp) * zero exceptions */
0x6a, 0x01, /* push $0x1 */
0x6a, 0x01, /* push $0x1 */
0x6a, 0x01, /* push $0x1 */
0x6a, 0x01, /* push $0x1 */
0x0f, 0x10, 0x0c, 0x24, /* movups (%esp),%xmm1 * fill dividend */
0x0f, 0x57, 0xc0, /* xorps %xmm0,%xmm0 * clear divisor */
0x0f, 0x5e, 0xc8, /* divps %xmm0,%xmm1 * generate fault */
0x83, 0xc4, 0x10, /* add $0x10,%esp */
0x66, 0x81, 0x0c, 0x24, 0x00, 0x02, /* orw $0x200,(%esp) * disable exceptions */
0x0f, 0xae, 0x14, 0x24, /* ldmxcsr (%esp) */
0x83, 0xc4, 0x04, /* add $0x4,%esp */
0xc3, /* ret */
};
static const BYTE sse_check[] = {
0x0f, 0x58, 0xc8, /* addps %xmm0,%xmm1 */
0xc3, /* ret */
};
static void test_simd_exceptions(void)
{
int stage;
/* test if CPU & OS can do sse */
stage = 1;
got_exception = 0;
run_exception_test(simd_fault_handler, &stage, sse_check, sizeof(sse_check), 0);
if(got_exception) {
skip("system doesn't support SSE\n");
return;
}
/* generate a SIMD exception */
stage = 2;
got_exception = 0;
run_exception_test(simd_fault_handler, &stage, simd_exception_test,
sizeof(simd_exception_test), 0);
ok( got_exception == 1, "got exception: %i, should be 1\n", got_exception);
}
struct fpu_exception_info
{
DWORD exception_code;
DWORD exception_offset;
DWORD eip_offset;
};
static DWORD fpu_exception_handler(EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher)
{
struct fpu_exception_info *info = *(struct fpu_exception_info **)(frame + 1);
info->exception_code = rec->ExceptionCode;
info->exception_offset = (BYTE *)rec->ExceptionAddress - (BYTE *)code_mem;
info->eip_offset = context->Eip - (DWORD)code_mem;
++context->Eip;
return ExceptionContinueExecution;
}
static void test_fpu_exceptions(void)
{
static const BYTE fpu_exception_test_ie[] =
{
0x83, 0xec, 0x04, /* sub $0x4,%esp */
0x66, 0xc7, 0x04, 0x24, 0xfe, 0x03, /* movw $0x3fe,(%esp) */
0x9b, 0xd9, 0x7c, 0x24, 0x02, /* fstcw 0x2(%esp) */
0xd9, 0x2c, 0x24, /* fldcw (%esp) */
0xd9, 0xee, /* fldz */
0xd9, 0xe8, /* fld1 */
0xde, 0xf1, /* fdivp */
0xdd, 0xd8, /* fstp %st(0) */
0xdd, 0xd8, /* fstp %st(0) */
0x9b, /* fwait */
0xdb, 0xe2, /* fnclex */
0xd9, 0x6c, 0x24, 0x02, /* fldcw 0x2(%esp) */
0x83, 0xc4, 0x04, /* add $0x4,%esp */
0xc3, /* ret */
};
static const BYTE fpu_exception_test_de[] =
{
0x83, 0xec, 0x04, /* sub $0x4,%esp */
0x66, 0xc7, 0x04, 0x24, 0xfb, 0x03, /* movw $0x3fb,(%esp) */
0x9b, 0xd9, 0x7c, 0x24, 0x02, /* fstcw 0x2(%esp) */
0xd9, 0x2c, 0x24, /* fldcw (%esp) */
0xdd, 0xd8, /* fstp %st(0) */
0xd9, 0xee, /* fldz */
0xd9, 0xe8, /* fld1 */
0xde, 0xf1, /* fdivp */
0x9b, /* fwait */
0xdb, 0xe2, /* fnclex */
0xdd, 0xd8, /* fstp %st(0) */
0xdd, 0xd8, /* fstp %st(0) */
0xd9, 0x6c, 0x24, 0x02, /* fldcw 0x2(%esp) */
0x83, 0xc4, 0x04, /* add $0x4,%esp */
0xc3, /* ret */
};
struct fpu_exception_info info;
memset(&info, 0, sizeof(info));
run_exception_test(fpu_exception_handler, &info, fpu_exception_test_ie, sizeof(fpu_exception_test_ie), 0);
ok(info.exception_code == EXCEPTION_FLT_STACK_CHECK,
"Got exception code %#x, expected EXCEPTION_FLT_STACK_CHECK\n", info.exception_code);
ok(info.exception_offset == 0x19 ||
broken( is_wow64 && info.exception_offset == info.eip_offset ),
"Got exception offset %#x, expected 0x19\n", info.exception_offset);
ok(info.eip_offset == 0x1b, "Got EIP offset %#x, expected 0x1b\n", info.eip_offset);
memset(&info, 0, sizeof(info));
run_exception_test(fpu_exception_handler, &info, fpu_exception_test_de, sizeof(fpu_exception_test_de), 0);
ok(info.exception_code == EXCEPTION_FLT_DIVIDE_BY_ZERO,
"Got exception code %#x, expected EXCEPTION_FLT_DIVIDE_BY_ZERO\n", info.exception_code);
ok(info.exception_offset == 0x17 ||
broken( is_wow64 && info.exception_offset == info.eip_offset ),
"Got exception offset %#x, expected 0x17\n", info.exception_offset);
ok(info.eip_offset == 0x19, "Got EIP offset %#x, expected 0x19\n", info.eip_offset);
}
struct dpe_exception_info {
BOOL exception_caught;
DWORD exception_info;
};
static DWORD dpe_exception_handler(EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher)
{
DWORD old_prot;
struct dpe_exception_info *info = *(struct dpe_exception_info **)(frame + 1);
ok(rec->ExceptionCode == EXCEPTION_ACCESS_VIOLATION,
"Exception code %08x\n", rec->ExceptionCode);
ok(rec->NumberParameters == 2,
"Parameter count: %d\n", rec->NumberParameters);
ok((LPVOID)rec->ExceptionInformation[1] == code_mem,
"Exception address: %p, expected %p\n",
(LPVOID)rec->ExceptionInformation[1], code_mem);
info->exception_info = rec->ExceptionInformation[0];
info->exception_caught = TRUE;
VirtualProtect(code_mem, 1, PAGE_EXECUTE_READWRITE, &old_prot);
return ExceptionContinueExecution;
}
static void test_dpe_exceptions(void)
{
static char single_ret[] = {0xC3};
struct dpe_exception_info info;
NTSTATUS stat;
BOOL has_hw_support;
BOOL is_permanent = FALSE, can_test_without = TRUE, can_test_with = TRUE;
DWORD val;
ULONG len;
/* Query DEP with len to small */
stat = pNtQueryInformationProcess(GetCurrentProcess(), ProcessExecuteFlags, &val, sizeof val - 1, &len);
if(stat == STATUS_INVALID_INFO_CLASS)
{
skip("This software platform does not support DEP\n");
return;
}
ok(stat == STATUS_INFO_LENGTH_MISMATCH, "buffer too small: %08x\n", stat);
/* Query DEP */
stat = pNtQueryInformationProcess(GetCurrentProcess(), ProcessExecuteFlags, &val, sizeof val, &len);
ok(stat == STATUS_SUCCESS, "querying DEP: status %08x\n", stat);
if(stat == STATUS_SUCCESS)
{
ok(len == sizeof val, "returned length: %d\n", len);
if(val & MEM_EXECUTE_OPTION_PERMANENT)
{
skip("toggling DEP impossible - status locked\n");
is_permanent = TRUE;
if(val & MEM_EXECUTE_OPTION_DISABLE)
can_test_without = FALSE;
else
can_test_with = FALSE;
}
}
if(!is_permanent)
{
/* Enable DEP */
val = MEM_EXECUTE_OPTION_DISABLE;
stat = pNtSetInformationProcess(GetCurrentProcess(), ProcessExecuteFlags, &val, sizeof val);
ok(stat == STATUS_SUCCESS, "enabling DEP: status %08x\n", stat);
}
if(can_test_with)
{
/* Try access to locked page with DEP on*/
info.exception_caught = FALSE;
run_exception_test(dpe_exception_handler, &info, single_ret, sizeof(single_ret), PAGE_NOACCESS);
ok(info.exception_caught == TRUE, "Execution of disabled memory succeeded\n");
ok(info.exception_info == EXCEPTION_READ_FAULT ||
info.exception_info == EXCEPTION_EXECUTE_FAULT,
"Access violation type: %08x\n", (unsigned)info.exception_info);
has_hw_support = info.exception_info == EXCEPTION_EXECUTE_FAULT;
trace("DEP hardware support: %s\n", has_hw_support?"Yes":"No");
/* Try execution of data with DEP on*/
info.exception_caught = FALSE;
run_exception_test(dpe_exception_handler, &info, single_ret, sizeof(single_ret), PAGE_READWRITE);
if(has_hw_support)
{
ok(info.exception_caught == TRUE, "Execution of data memory succeeded\n");
ok(info.exception_info == EXCEPTION_EXECUTE_FAULT,
"Access violation type: %08x\n", (unsigned)info.exception_info);
}
else
ok(info.exception_caught == FALSE, "Execution trapped without hardware support\n");
}
else
skip("DEP is in AlwaysOff state\n");
if(!is_permanent)
{
/* Disable DEP */
val = MEM_EXECUTE_OPTION_ENABLE;
stat = pNtSetInformationProcess(GetCurrentProcess(), ProcessExecuteFlags, &val, sizeof val);
ok(stat == STATUS_SUCCESS, "disabling DEP: status %08x\n", stat);
}
/* page is read without exec here */
if(can_test_without)
{
/* Try execution of data with DEP off */
info.exception_caught = FALSE;
run_exception_test(dpe_exception_handler, &info, single_ret, sizeof(single_ret), PAGE_READWRITE);
ok(info.exception_caught == FALSE, "Execution trapped with DEP turned off\n");
/* Try access to locked page with DEP off - error code is different than
with hardware DEP on */
info.exception_caught = FALSE;
run_exception_test(dpe_exception_handler, &info, single_ret, sizeof(single_ret), PAGE_NOACCESS);
ok(info.exception_caught == TRUE, "Execution of disabled memory succeeded\n");
ok(info.exception_info == EXCEPTION_READ_FAULT,
"Access violation type: %08x\n", (unsigned)info.exception_info);
}
else
skip("DEP is in AlwaysOn state\n");
if(!is_permanent)
{
/* Turn off DEP permanently */
val = MEM_EXECUTE_OPTION_ENABLE | MEM_EXECUTE_OPTION_PERMANENT;
stat = pNtSetInformationProcess(GetCurrentProcess(), ProcessExecuteFlags, &val, sizeof val);
ok(stat == STATUS_SUCCESS, "disabling DEP permanently: status %08x\n", stat);
}
/* Try to turn off DEP */
val = MEM_EXECUTE_OPTION_ENABLE;
stat = pNtSetInformationProcess(GetCurrentProcess(), ProcessExecuteFlags, &val, sizeof val);
ok(stat == STATUS_ACCESS_DENIED, "disabling DEP while permanent: status %08x\n", stat);
/* Try to turn on DEP */
val = MEM_EXECUTE_OPTION_DISABLE;
stat = pNtSetInformationProcess(GetCurrentProcess(), ProcessExecuteFlags, &val, sizeof val);
ok(stat == STATUS_ACCESS_DENIED, "enabling DEP while permanent: status %08x\n", stat);
}
#elif defined(__x86_64__)
#define UNW_FLAG_NHANDLER 0
#define UNW_FLAG_EHANDLER 1
#define UNW_FLAG_UHANDLER 2
#define UNW_FLAG_CHAININFO 4
#define UWOP_PUSH_NONVOL 0
#define UWOP_ALLOC_LARGE 1
#define UWOP_ALLOC_SMALL 2
#define UWOP_SET_FPREG 3
#define UWOP_SAVE_NONVOL 4
#define UWOP_SAVE_NONVOL_FAR 5
#define UWOP_SAVE_XMM128 8
#define UWOP_SAVE_XMM128_FAR 9
#define UWOP_PUSH_MACHFRAME 10
struct results
{
int rip_offset; /* rip offset from code start */
int rbp_offset; /* rbp offset from stack pointer */
int handler; /* expect handler to be set? */
int rip; /* expected final rip value */
int frame; /* expected frame return value */
int regs[8][2]; /* expected values for registers */
};
struct unwind_test
{
const BYTE *function;
size_t function_size;
const BYTE *unwind_info;
const struct results *results;
unsigned int nb_results;
};
enum regs
{
rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi,
r8, r9, r10, r11, r12, r13, r14, r15
};
static const char * const reg_names[16] =
{
"rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi",
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15"
};
#define UWOP(code,info) (UWOP_##code | ((info) << 4))
static void call_virtual_unwind( int testnum, const struct unwind_test *test )
{
static const int code_offset = 1024;
static const int unwind_offset = 2048;
void *handler, *data;
CONTEXT context;
RUNTIME_FUNCTION runtime_func;
KNONVOLATILE_CONTEXT_POINTERS ctx_ptr;
UINT i, j, k;
ULONG64 fake_stack[256];
ULONG64 frame, orig_rip, orig_rbp, unset_reg;
UINT unwind_size = 4 + 2 * test->unwind_info[2] + 8;
memcpy( (char *)code_mem + code_offset, test->function, test->function_size );
memcpy( (char *)code_mem + unwind_offset, test->unwind_info, unwind_size );
runtime_func.BeginAddress = code_offset;
runtime_func.EndAddress = code_offset + test->function_size;
runtime_func.UnwindData = unwind_offset;
trace( "code: %p stack: %p\n", code_mem, fake_stack );
for (i = 0; i < test->nb_results; i++)
{
memset( &ctx_ptr, 0, sizeof(ctx_ptr) );
memset( &context, 0x55, sizeof(context) );
memset( &unset_reg, 0x55, sizeof(unset_reg) );
for (j = 0; j < 256; j++) fake_stack[j] = j * 8;
context.Rsp = (ULONG_PTR)fake_stack;
context.Rbp = (ULONG_PTR)fake_stack + test->results[i].rbp_offset;
orig_rbp = context.Rbp;
orig_rip = (ULONG64)code_mem + code_offset + test->results[i].rip_offset;
trace( "%u/%u: rip=%p (%02x) rbp=%p rsp=%p\n", testnum, i,
(void *)orig_rip, *(BYTE *)orig_rip, (void *)orig_rbp, (void *)context.Rsp );
data = (void *)0xdeadbeef;
handler = RtlVirtualUnwind( UNW_FLAG_EHANDLER, (ULONG64)code_mem, orig_rip,
&runtime_func, &context, &data, &frame, &ctx_ptr );
if (test->results[i].handler)
{
ok( (char *)handler == (char *)code_mem + 0x200,
"%u/%u: wrong handler %p/%p\n", testnum, i, handler, (char *)code_mem + 0x200 );
if (handler) ok( *(DWORD *)data == 0x08070605,
"%u/%u: wrong handler data %p\n", testnum, i, data );
}
else
{
ok( handler == NULL, "%u/%u: handler %p instead of NULL\n", testnum, i, handler );
ok( data == (void *)0xdeadbeef, "%u/%u: handler data set to %p\n", testnum, i, data );
}
ok( context.Rip == test->results[i].rip, "%u/%u: wrong rip %p/%x\n",
testnum, i, (void *)context.Rip, test->results[i].rip );
ok( frame == (ULONG64)fake_stack + test->results[i].frame, "%u/%u: wrong frame %p/%p\n",
testnum, i, (void *)frame, (char *)fake_stack + test->results[i].frame );
for (j = 0; j < 16; j++)
{
static const UINT nb_regs = sizeof(test->results[i].regs) / sizeof(test->results[i].regs[0]);
for (k = 0; k < nb_regs; k++)
{
if (test->results[i].regs[k][0] == -1)
{
k = nb_regs;
break;
}
if (test->results[i].regs[k][0] == j) break;
}
if (j == rsp) /* rsp is special */
{
ok( !ctx_ptr.u2.IntegerContext[j],
"%u/%u: rsp should not be set in ctx_ptr\n", testnum, i );
ok( context.Rsp == (ULONG64)fake_stack + test->results[i].regs[k][1],
"%u/%u: register rsp wrong %p/%p\n",
testnum, i, (void *)context.Rsp, (char *)fake_stack + test->results[i].regs[k][1] );
continue;
}
if (ctx_ptr.u2.IntegerContext[j])
{
ok( k < nb_regs, "%u/%u: register %s should not be set to %lx\n",
testnum, i, reg_names[j], *(&context.Rax + j) );
if (k < nb_regs)
ok( *(&context.Rax + j) == test->results[i].regs[k][1],
"%u/%u: register %s wrong %p/%x\n",
testnum, i, reg_names[j], (void *)*(&context.Rax + j), test->results[i].regs[k][1] );
}
else
{
ok( k == nb_regs, "%u/%u: register %s should be set\n", testnum, i, reg_names[j] );
if (j == rbp)
ok( context.Rbp == orig_rbp, "%u/%u: register rbp wrong %p/unset\n",
testnum, i, (void *)context.Rbp );
else
ok( *(&context.Rax + j) == unset_reg,
"%u/%u: register %s wrong %p/unset\n",
testnum, i, reg_names[j], (void *)*(&context.Rax + j));
}
}
}
}
static void test_virtual_unwind(void)
{
static const BYTE function_0[] =
{
0xff, 0xf5, /* 00: push %rbp */
0x48, 0x81, 0xec, 0x10, 0x01, 0x00, 0x00, /* 02: sub $0x110,%rsp */
0x48, 0x8d, 0x6c, 0x24, 0x30, /* 09: lea 0x30(%rsp),%rbp */
0x48, 0x89, 0x9d, 0xf0, 0x00, 0x00, 0x00, /* 0e: mov %rbx,0xf0(%rbp) */
0x48, 0x89, 0xb5, 0xf8, 0x00, 0x00, 0x00, /* 15: mov %rsi,0xf8(%rbp) */
0x90, /* 1c: nop */
0x48, 0x8b, 0x9d, 0xf0, 0x00, 0x00, 0x00, /* 1d: mov 0xf0(%rbp),%rbx */
0x48, 0x8b, 0xb5, 0xf8, 0x00, 0x00, 0x00, /* 24: mov 0xf8(%rbp),%rsi */
0x48, 0x8d, 0xa5, 0xe0, 0x00, 0x00, 0x00, /* 2b: lea 0xe0(%rbp),%rsp */
0x5d, /* 32: pop %rbp */
0xc3 /* 33: ret */
};
static const BYTE unwind_info_0[] =
{
1 | (UNW_FLAG_EHANDLER << 3), /* version + flags */
0x1c, /* prolog size */
8, /* opcode count */
(0x03 << 4) | rbp, /* frame reg rbp offset 0x30 */
0x1c, UWOP(SAVE_NONVOL, rsi), 0x25, 0, /* 1c: mov %rsi,0x128(%rsp) */
0x15, UWOP(SAVE_NONVOL, rbx), 0x24, 0, /* 15: mov %rbx,0x120(%rsp) */
0x0e, UWOP(SET_FPREG, rbp), /* 0e: lea 0x30(%rsp),rbp */
0x09, UWOP(ALLOC_LARGE, 0), 0x22, 0, /* 09: sub $0x110,%rsp */
0x02, UWOP(PUSH_NONVOL, rbp), /* 02: push %rbp */
0x00, 0x02, 0x00, 0x00, /* handler */
0x05, 0x06, 0x07, 0x08, /* data */
};
static const struct results results_0[] =
{
/* offset rbp handler rip frame registers */
{ 0x00, 0x40, FALSE, 0x000, 0x000, { {rsp,0x008}, {-1,-1} }},
{ 0x02, 0x40, FALSE, 0x008, 0x000, { {rsp,0x010}, {rbp,0x000}, {-1,-1} }},
{ 0x09, 0x40, FALSE, 0x118, 0x000, { {rsp,0x120}, {rbp,0x110}, {-1,-1} }},
{ 0x0e, 0x40, FALSE, 0x128, 0x010, { {rsp,0x130}, {rbp,0x120}, {-1,-1} }},
{ 0x15, 0x40, FALSE, 0x128, 0x010, { {rsp,0x130}, {rbp,0x120}, {rbx,0x130}, {-1,-1} }},
{ 0x1c, 0x40, TRUE, 0x128, 0x010, { {rsp,0x130}, {rbp,0x120}, {rbx,0x130}, {rsi,0x138}, {-1,-1}}},
{ 0x1d, 0x40, TRUE, 0x128, 0x010, { {rsp,0x130}, {rbp,0x120}, {rbx,0x130}, {rsi,0x138}, {-1,-1}}},
{ 0x24, 0x40, TRUE, 0x128, 0x010, { {rsp,0x130}, {rbp,0x120}, {rbx,0x130}, {rsi,0x138}, {-1,-1}}},
{ 0x2b, 0x40, FALSE, 0x128, 0x010, { {rsp,0x130}, {rbp,0x120}, {-1,-1}}},
{ 0x32, 0x40, FALSE, 0x008, 0x010, { {rsp,0x010}, {rbp,0x000}, {-1,-1}}},
{ 0x33, 0x40, FALSE, 0x000, 0x010, { {rsp,0x008}, {-1,-1}}},
};
static const BYTE function_1[] =
{
0x53, /* 00: push %rbx */
0x55, /* 01: push %rbp */
0x56, /* 02: push %rsi */
0x57, /* 03: push %rdi */
0x41, 0x54, /* 04: push %r12 */
0x48, 0x83, 0xec, 0x30, /* 06: sub $0x30,%rsp */
0x90, 0x90, /* 0a: nop; nop */
0x48, 0x83, 0xc4, 0x30, /* 0c: add $0x30,%rsp */
0x41, 0x5c, /* 10: pop %r12 */
0x5f, /* 12: pop %rdi */
0x5e, /* 13: pop %rsi */
0x5d, /* 14: pop %rbp */
0x5b, /* 15: pop %rbx */
0xc3 /* 16: ret */
};
static const BYTE unwind_info_1[] =
{
1 | (UNW_FLAG_EHANDLER << 3), /* version + flags */
0x0a, /* prolog size */
6, /* opcode count */
0, /* frame reg */
0x0a, UWOP(ALLOC_SMALL, 5), /* 0a: sub $0x30,%rsp */
0x06, UWOP(PUSH_NONVOL, r12), /* 06: push %r12 */
0x04, UWOP(PUSH_NONVOL, rdi), /* 04: push %rdi */
0x03, UWOP(PUSH_NONVOL, rsi), /* 03: push %rsi */
0x02, UWOP(PUSH_NONVOL, rbp), /* 02: push %rbp */
0x01, UWOP(PUSH_NONVOL, rbx), /* 01: push %rbx */
0x00, 0x02, 0x00, 0x00, /* handler */
0x05, 0x06, 0x07, 0x08, /* data */
};
static const struct results results_1[] =
{
/* offset rbp handler rip frame registers */
{ 0x00, 0x50, FALSE, 0x000, 0x000, { {rsp,0x008}, {-1,-1} }},
{ 0x01, 0x50, FALSE, 0x008, 0x000, { {rsp,0x010}, {rbx,0x000}, {-1,-1} }},
{ 0x02, 0x50, FALSE, 0x010, 0x000, { {rsp,0x018}, {rbx,0x008}, {rbp,0x000}, {-1,-1} }},
{ 0x03, 0x50, FALSE, 0x018, 0x000, { {rsp,0x020}, {rbx,0x010}, {rbp,0x008}, {rsi,0x000}, {-1,-1} }},
{ 0x04, 0x50, FALSE, 0x020, 0x000, { {rsp,0x028}, {rbx,0x018}, {rbp,0x010}, {rsi,0x008}, {rdi,0x000}, {-1,-1} }},
{ 0x06, 0x50, FALSE, 0x028, 0x000, { {rsp,0x030}, {rbx,0x020}, {rbp,0x018}, {rsi,0x010}, {rdi,0x008}, {r12,0x000}, {-1,-1} }},
{ 0x0a, 0x50, TRUE, 0x058, 0x000, { {rsp,0x060}, {rbx,0x050}, {rbp,0x048}, {rsi,0x040}, {rdi,0x038}, {r12,0x030}, {-1,-1} }},
{ 0x0c, 0x50, FALSE, 0x058, 0x000, { {rsp,0x060}, {rbx,0x050}, {rbp,0x048}, {rsi,0x040}, {rdi,0x038}, {r12,0x030}, {-1,-1} }},
{ 0x10, 0x50, FALSE, 0x028, 0x000, { {rsp,0x030}, {rbx,0x020}, {rbp,0x018}, {rsi,0x010}, {rdi,0x008}, {r12,0x000}, {-1,-1} }},
{ 0x12, 0x50, FALSE, 0x020, 0x000, { {rsp,0x028}, {rbx,0x018}, {rbp,0x010}, {rsi,0x008}, {rdi,0x000}, {-1,-1} }},
{ 0x13, 0x50, FALSE, 0x018, 0x000, { {rsp,0x020}, {rbx,0x010}, {rbp,0x008}, {rsi,0x000}, {-1,-1} }},
{ 0x14, 0x50, FALSE, 0x010, 0x000, { {rsp,0x018}, {rbx,0x008}, {rbp,0x000}, {-1,-1} }},
{ 0x15, 0x50, FALSE, 0x008, 0x000, { {rsp,0x010}, {rbx,0x000}, {-1,-1} }},
{ 0x16, 0x50, FALSE, 0x000, 0x000, { {rsp,0x008}, {-1,-1} }},
};
static const struct unwind_test tests[] =
{
{ function_0, sizeof(function_0), unwind_info_0,
results_0, sizeof(results_0)/sizeof(results_0[0]) },
{ function_1, sizeof(function_1), unwind_info_1,
results_1, sizeof(results_1)/sizeof(results_1[0]) }
};
unsigned int i;
for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)
call_virtual_unwind( i, &tests[i] );
}
#endif /* __x86_64__ */
START_TEST(exception)
{
HMODULE hntdll = GetModuleHandleA("ntdll.dll");
code_mem = VirtualAlloc(NULL, 65536, MEM_RESERVE | MEM_COMMIT, PAGE_EXECUTE_READWRITE);
if(!code_mem) {
trace("VirtualAlloc failed\n");
return;
}
pNtCurrentTeb = (void *)GetProcAddress( hntdll, "NtCurrentTeb" );
pNtGetContextThread = (void *)GetProcAddress( hntdll, "NtGetContextThread" );
pNtSetContextThread = (void *)GetProcAddress( hntdll, "NtSetContextThread" );
pNtReadVirtualMemory = (void *)GetProcAddress( hntdll, "NtReadVirtualMemory" );
pRtlRaiseException = (void *)GetProcAddress( hntdll, "RtlRaiseException" );
pNtTerminateProcess = (void *)GetProcAddress( hntdll, "NtTerminateProcess" );
pRtlAddVectoredExceptionHandler = (void *)GetProcAddress( hntdll,
"RtlAddVectoredExceptionHandler" );
pRtlRemoveVectoredExceptionHandler = (void *)GetProcAddress( hntdll,
"RtlRemoveVectoredExceptionHandler" );
pNtQueryInformationProcess = (void*)GetProcAddress( hntdll,
"NtQueryInformationProcess" );
pNtSetInformationProcess = (void*)GetProcAddress( hntdll,
"NtSetInformationProcess" );
pIsWow64Process = (void *)GetProcAddress(GetModuleHandle("kernel32.dll"), "IsWow64Process");
#ifdef __i386__
if (!pNtCurrentTeb)
{
skip( "NtCurrentTeb not found\n" );
return;
}
if (!pIsWow64Process || !pIsWow64Process( GetCurrentProcess(), &is_wow64 )) is_wow64 = FALSE;
if (pRtlAddVectoredExceptionHandler && pRtlRemoveVectoredExceptionHandler)
have_vectored_api = TRUE;
else
skip("RtlAddVectoredExceptionHandler or RtlRemoveVectoredExceptionHandler not found\n");
my_argc = winetest_get_mainargs( &my_argv );
if (my_argc >= 4)
{
void *addr;
sscanf( my_argv[3], "%p", &addr );
if (addr != &test_stage)
{
skip( "child process not mapped at same address (%p/%p)\n", &test_stage, addr);
return;
}
/* child must be run under a debugger */
if (!pNtCurrentTeb()->Peb->BeingDebugged)
{
ok(FALSE, "child process not being debugged?\n");
return;
}
if (pRtlRaiseException)
{
test_stage = 1;
run_rtlraiseexception_test(0x12345);
run_rtlraiseexception_test(EXCEPTION_BREAKPOINT);
run_rtlraiseexception_test(EXCEPTION_INVALID_HANDLE);
test_stage = 2;
run_rtlraiseexception_test(0x12345);
run_rtlraiseexception_test(EXCEPTION_BREAKPOINT);
run_rtlraiseexception_test(EXCEPTION_INVALID_HANDLE);
}
else
skip( "RtlRaiseException not found\n" );
/* rest of tests only run in parent */
return;
}
test_prot_fault();
test_exceptions();
test_rtlraiseexception();
test_debugger();
test_simd_exceptions();
test_fpu_exceptions();
test_dpe_exceptions();
#elif defined(__x86_64__)
test_virtual_unwind();
#endif
VirtualFree(code_mem, 0, MEM_FREE);
}
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