2 * Unit test suite for ntdll exceptions
4 * Copyright 2005 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
25 #define _WIN32_WINNT 0x500 /* For NTSTATUS */
29 #define WIN32_NO_STATUS
36 #include "wine/test.h"
40 static char** my_argv;
41 static int test_stage;
43 static struct _TEB * (WINAPI *pNtCurrentTeb)(void);
44 static NTSTATUS (WINAPI *pNtGetContextThread)(HANDLE,CONTEXT*);
45 static NTSTATUS (WINAPI *pNtSetContextThread)(HANDLE,CONTEXT*);
46 static NTSTATUS (WINAPI *pRtlRaiseException)(EXCEPTION_RECORD *rec);
47 static PVOID (WINAPI *pRtlAddVectoredExceptionHandler)(ULONG first, PVECTORED_EXCEPTION_HANDLER func);
48 static ULONG (WINAPI *pRtlRemoveVectoredExceptionHandler)(PVOID handler);
49 static NTSTATUS (WINAPI *pNtReadVirtualMemory)(HANDLE, const void*, void*, SIZE_T, SIZE_T*);
50 static NTSTATUS (WINAPI *pNtTerminateProcess)(HANDLE handle, LONG exit_code);
51 static void *code_mem;
53 /* Test various instruction combinations that cause a protection fault on the i386,
54 * and check what the resulting exception looks like.
57 static const struct exception
59 BYTE code[18]; /* asm code */
60 BYTE offset; /* offset of faulting instruction */
61 BYTE length; /* length of faulting instruction */
62 NTSTATUS status; /* expected status code */
63 DWORD nb_params; /* expected number of parameters */
64 DWORD params[4]; /* expected parameters */
67 /* test some privileged instructions */
68 { { 0xfb, 0xc3 }, /* sti; ret */
69 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 },
70 { { 0x6c, 0xc3 }, /* insb (%dx); ret */
71 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 },
72 { { 0x6d, 0xc3 }, /* insl (%dx); ret */
73 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 },
74 { { 0x6e, 0xc3 }, /* outsb (%dx); ret */
75 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 },
76 { { 0x6f, 0xc3 }, /* outsl (%dx); ret */
77 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 },
78 { { 0xe4, 0x11, 0xc3 }, /* inb $0x11,%al; ret */
79 0, 2, STATUS_PRIVILEGED_INSTRUCTION, 0 },
80 { { 0xe5, 0x11, 0xc3 }, /* inl $0x11,%eax; ret */
81 0, 2, STATUS_PRIVILEGED_INSTRUCTION, 0 },
82 { { 0xe6, 0x11, 0xc3 }, /* outb %al,$0x11; ret */
83 0, 2, STATUS_PRIVILEGED_INSTRUCTION, 0 },
84 { { 0xe7, 0x11, 0xc3 }, /* outl %eax,$0x11; ret */
85 0, 2, STATUS_PRIVILEGED_INSTRUCTION, 0 },
86 { { 0xed, 0xc3 }, /* inl (%dx),%eax; ret */
87 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 },
88 { { 0xee, 0xc3 }, /* outb %al,(%dx); ret */
89 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 },
90 { { 0xef, 0xc3 }, /* outl %eax,(%dx); ret */
91 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 },
92 { { 0xf4, 0xc3 }, /* hlt; ret */
93 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 },
94 { { 0xfa, 0xc3 }, /* cli; ret */
95 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 },
97 /* test long jump to invalid selector */
98 { { 0xea, 0, 0, 0, 0, 0, 0, 0xc3 }, /* ljmp $0,$0; ret */
99 0, 7, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } },
101 /* test iret to invalid selector */
102 { { 0x6a, 0x00, 0x6a, 0x00, 0x6a, 0x00, 0xcf, 0x83, 0xc4, 0x0c, 0xc3 },
103 /* pushl $0; pushl $0; pushl $0; iret; addl $12,%esp; ret */
104 6, 1, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } },
106 /* test loading an invalid selector */
107 { { 0xb8, 0xef, 0xbe, 0x00, 0x00, 0x8e, 0xe8, 0xc3 }, /* mov $beef,%ax; mov %ax,%gs; ret */
108 5, 2, STATUS_ACCESS_VIOLATION, 2, { 0, 0xbee8 } },
110 /* test accessing a zero selector */
111 { { 0x06, 0x31, 0xc0, 0x8e, 0xc0, 0x26, 0xa1, 0, 0, 0, 0, 0x07, 0xc3 },
112 /* push %es; xor %eax,%eax; mov %ax,%es; mov %es:(0),%ax; pop %es */
113 5, 6, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } },
115 /* test moving %cs -> %ss */
116 { { 0x0e, 0x17, 0x58, 0xc3 }, /* pushl %cs; popl %ss; popl %eax; ret */
117 1, 1, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } },
119 /* test overlong instruction (limit is 16 bytes) */
120 { { 0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0xfa,0xc3 },
121 0, 16, STATUS_ILLEGAL_INSTRUCTION, 0 },
122 { { 0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0xfa,0xc3 },
123 0, 15, STATUS_PRIVILEGED_INSTRUCTION, 0 },
125 /* test invalid interrupt */
126 { { 0xcd, 0xff, 0xc3 }, /* int $0xff; ret */
127 0, 2, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } },
129 /* test moves to/from Crx */
130 { { 0x0f, 0x20, 0xc0, 0xc3 }, /* movl %cr0,%eax; ret */
131 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 },
132 { { 0x0f, 0x20, 0xe0, 0xc3 }, /* movl %cr4,%eax; ret */
133 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 },
134 { { 0x0f, 0x22, 0xc0, 0xc3 }, /* movl %eax,%cr0; ret */
135 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 },
136 { { 0x0f, 0x22, 0xe0, 0xc3 }, /* movl %eax,%cr4; ret */
137 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 },
139 /* test moves to/from Drx */
140 { { 0x0f, 0x21, 0xc0, 0xc3 }, /* movl %dr0,%eax; ret */
141 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 },
142 { { 0x0f, 0x21, 0xc8, 0xc3 }, /* movl %dr1,%eax; ret */
143 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 },
144 { { 0x0f, 0x21, 0xf8, 0xc3 }, /* movl %dr7,%eax; ret */
145 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 },
146 { { 0x0f, 0x23, 0xc0, 0xc3 }, /* movl %eax,%dr0; ret */
147 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 },
148 { { 0x0f, 0x23, 0xc8, 0xc3 }, /* movl %eax,%dr1; ret */
149 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 },
150 { { 0x0f, 0x23, 0xf8, 0xc3 }, /* movl %eax,%dr7; ret */
151 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 },
153 /* test memory reads */
154 { { 0xa1, 0xfc, 0xff, 0xff, 0xff, 0xc3 }, /* movl 0xfffffffc,%eax; ret */
155 0, 5, STATUS_ACCESS_VIOLATION, 2, { 0, 0xfffffffc } },
156 { { 0xa1, 0xfd, 0xff, 0xff, 0xff, 0xc3 }, /* movl 0xfffffffd,%eax; ret */
157 0, 5, STATUS_ACCESS_VIOLATION, 2, { 0, 0xfffffffd } },
158 { { 0xa1, 0xfe, 0xff, 0xff, 0xff, 0xc3 }, /* movl 0xfffffffe,%eax; ret */
159 0, 5, STATUS_ACCESS_VIOLATION, 2, { 0, 0xfffffffe } },
160 { { 0xa1, 0xff, 0xff, 0xff, 0xff, 0xc3 }, /* movl 0xffffffff,%eax; ret */
161 0, 5, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } },
163 /* test memory writes */
164 { { 0xa3, 0xfc, 0xff, 0xff, 0xff, 0xc3 }, /* movl %eax,0xfffffffc; ret */
165 0, 5, STATUS_ACCESS_VIOLATION, 2, { 1, 0xfffffffc } },
166 { { 0xa3, 0xfd, 0xff, 0xff, 0xff, 0xc3 }, /* movl %eax,0xfffffffd; ret */
167 0, 5, STATUS_ACCESS_VIOLATION, 2, { 1, 0xfffffffd } },
168 { { 0xa3, 0xfe, 0xff, 0xff, 0xff, 0xc3 }, /* movl %eax,0xfffffffe; ret */
169 0, 5, STATUS_ACCESS_VIOLATION, 2, { 1, 0xfffffffe } },
170 { { 0xa3, 0xff, 0xff, 0xff, 0xff, 0xc3 }, /* movl %eax,0xffffffff; ret */
171 0, 5, STATUS_ACCESS_VIOLATION, 2, { 1, 0xffffffff } },
174 static int got_exception;
175 static BOOL have_vectored_api;
177 static void run_exception_test(const void *handler, const void* context,
178 const void *code, unsigned int code_size)
181 EXCEPTION_REGISTRATION_RECORD frame;
184 void (*func)(void) = code_mem;
186 exc_frame.frame.Handler = handler;
187 exc_frame.frame.Prev = pNtCurrentTeb()->Tib.ExceptionList;
188 exc_frame.context = context;
190 memcpy(code_mem, code, code_size);
192 pNtCurrentTeb()->Tib.ExceptionList = &exc_frame.frame;
194 pNtCurrentTeb()->Tib.ExceptionList = exc_frame.frame.Prev;
197 LONG CALLBACK rtlraiseexception_vectored_handler(EXCEPTION_POINTERS *ExceptionInfo)
199 PCONTEXT context = ExceptionInfo->ContextRecord;
200 PEXCEPTION_RECORD rec = ExceptionInfo->ExceptionRecord;
201 trace("vect. handler %08x addr:%p context.Eip:%x\n", rec->ExceptionCode,
202 rec->ExceptionAddress, context->Eip);
205 ok(rec->ExceptionAddress == (char *)code_mem + 0xb, "ExceptionAddress at %p instead of %p\n",
206 rec->ExceptionAddress, (char *)code_mem + 0xb);
208 if (pNtCurrentTeb()->Peb->BeingDebugged)
209 ok((void *)context->Eax == pRtlRaiseException, "debugger managed to modify Eax to %x should be %p\n",
210 context->Eax, pRtlRaiseException);
213 /* check that context.Eip is fixed up only for EXCEPTION_BREAKPOINT
214 * even if raised by RtlRaiseException
216 if(rec->ExceptionCode == EXCEPTION_BREAKPOINT)
219 ok(context->Eip == (DWORD)code_mem + 0xa, "Eip at %x instead of %x\n",
220 context->Eip, (DWORD)code_mem + 0xa);
225 ok(context->Eip == (DWORD)code_mem + 0xb, "Eip at %x instead of %x\n",
226 context->Eip, (DWORD)code_mem + 0xb);
229 /* test if context change is preserved from vectored handler to stack handlers */
230 context->Eax = 0xf00f00f0;
231 return EXCEPTION_CONTINUE_SEARCH;
234 static DWORD rtlraiseexception_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
235 CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
237 trace( "exception: %08x flags:%x addr:%p context: Eip:%x\n",
238 rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress, context->Eip );
241 ok(rec->ExceptionAddress == (char *)code_mem + 0xb, "ExceptionAddress at %p instead of %p\n",
242 rec->ExceptionAddress, (char *)code_mem + 0xb);
245 /* check that context.Eip is fixed up only for EXCEPTION_BREAKPOINT
246 * even if raised by RtlRaiseException
248 if(rec->ExceptionCode == EXCEPTION_BREAKPOINT)
251 ok(context->Eip == (DWORD)code_mem + 0xa, "Eip at %x instead of %x\n",
252 context->Eip, (DWORD)code_mem + 0xa);
257 ok(context->Eip == (DWORD)code_mem + 0xb, "Eip at %x instead of %x\n",
258 context->Eip, (DWORD)code_mem + 0xb);
261 if(have_vectored_api)
262 ok(context->Eax == 0xf00f00f0, "Eax is %x, should have been set to 0xf00f00f0 in vectored handler\n",
265 /* give the debugger a chance to examine the state a second time */
266 /* without the exception handler changing Eip */
268 return ExceptionContinueSearch;
270 /* Eip in context is decreased by 1
271 * Increase it again, else execution will continue in the middle of a instruction */
272 if(rec->ExceptionCode == EXCEPTION_BREAKPOINT && (context->Eip == (DWORD)code_mem + 0xa))
274 return ExceptionContinueExecution;
278 static const BYTE call_one_arg_code[] = {
279 0x8b, 0x44, 0x24, 0x08, /* mov 0x8(%esp),%eax */
280 0x50, /* push %eax */
281 0x8b, 0x44, 0x24, 0x08, /* mov 0x8(%esp),%eax */
282 0xff, 0xd0, /* call *%eax */
291 static void run_rtlraiseexception_test(DWORD exceptioncode)
293 EXCEPTION_REGISTRATION_RECORD frame;
294 EXCEPTION_RECORD record;
295 PVOID vectored_handler = NULL;
297 void (*func)(void* function, EXCEPTION_RECORD* record) = code_mem;
299 record.ExceptionCode = exceptioncode;
300 record.ExceptionFlags = 0;
301 record.ExceptionRecord = NULL;
302 record.ExceptionAddress = NULL; /* does not matter, copied return address */
303 record.NumberParameters = 0;
305 frame.Handler = rtlraiseexception_handler;
306 frame.Prev = pNtCurrentTeb()->Tib.ExceptionList;
308 memcpy(code_mem, call_one_arg_code, sizeof(call_one_arg_code));
310 pNtCurrentTeb()->Tib.ExceptionList = &frame;
311 if (have_vectored_api)
313 vectored_handler = pRtlAddVectoredExceptionHandler(TRUE, &rtlraiseexception_vectored_handler);
314 ok(vectored_handler != 0, "RtlAddVectoredExceptionHandler failed\n");
317 func(pRtlRaiseException, &record);
319 if (have_vectored_api)
320 pRtlRemoveVectoredExceptionHandler(vectored_handler);
321 pNtCurrentTeb()->Tib.ExceptionList = frame.Prev;
324 static void test_rtlraiseexception(void)
326 if (!pRtlRaiseException)
328 skip("RtlRaiseException not found\n");
332 /* test without debugger */
333 run_rtlraiseexception_test(0x12345);
334 run_rtlraiseexception_test(EXCEPTION_BREAKPOINT);
335 run_rtlraiseexception_test(EXCEPTION_INVALID_HANDLE);
338 static DWORD handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
339 CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
341 const struct exception *except = *(const struct exception **)(frame + 1);
342 unsigned int i, entry = except - exceptions;
345 trace( "exception: %x flags:%x addr:%p\n",
346 rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress );
348 ok( rec->ExceptionCode == except->status,
349 "%u: Wrong exception code %x/%x\n", entry, rec->ExceptionCode, except->status );
350 ok( rec->ExceptionAddress == (char*)code_mem + except->offset,
351 "%u: Wrong exception address %p/%p\n", entry,
352 rec->ExceptionAddress, (char*)code_mem + except->offset );
354 ok( rec->NumberParameters == except->nb_params,
355 "%u: Wrong number of parameters %u/%u\n", entry, rec->NumberParameters, except->nb_params );
357 /* Most CPUs (except Intel Core apparently) report a segment limit violation */
358 /* instead of page faults for accesses beyond 0xffffffff */
359 if (except->nb_params == 2 && except->params[1] >= 0xfffffffd)
361 if (rec->ExceptionInformation[0] == 0 && rec->ExceptionInformation[1] == 0xffffffff)
365 for (i = 0; i < rec->NumberParameters; i++)
366 ok( rec->ExceptionInformation[i] == except->params[i],
367 "%u: Wrong parameter %d: %lx/%x\n",
368 entry, i, rec->ExceptionInformation[i], except->params[i] );
371 /* don't handle exception if it's not the address we expected */
372 if (rec->ExceptionAddress != (char*)code_mem + except->offset) return ExceptionContinueSearch;
374 context->Eip += except->length;
375 return ExceptionContinueExecution;
378 static void test_prot_fault(void)
382 for (i = 0; i < sizeof(exceptions)/sizeof(exceptions[0]); i++)
385 run_exception_test(handler, &exceptions[i], &exceptions[i].code,
386 sizeof(exceptions[i].code));
387 if (!i && !got_exception)
389 trace( "No exception, assuming win9x, no point in testing further\n" );
392 ok( got_exception == (exceptions[i].status != 0),
393 "%u: bad exception count %d\n", i, got_exception );
397 /* test handling of debug registers */
398 static DWORD dreg_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
399 CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
401 context->Eip += 2; /* Skips the popl (%eax) */
402 context->Dr0 = 0x42424242;
407 context->Dr7 = 0x155;
408 return ExceptionContinueExecution;
411 static const BYTE segfault_code[5] = {
412 0x31, 0xc0, /* xor %eax,%eax */
413 0x8f, 0x00, /* popl (%eax) - cause exception */
417 /* test the single step exception behaviour */
418 static DWORD single_step_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
419 CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
422 ok (!(context->EFlags & 0x100), "eflags has single stepping bit set\n");
424 if( got_exception < 3)
425 context->EFlags |= 0x100; /* single step until popf instruction */
427 /* show that the last single step exception on the popf instruction
428 * (which removed the TF bit), still is a EXCEPTION_SINGLE_STEP exception */
429 ok( rec->ExceptionCode == EXCEPTION_SINGLE_STEP,
430 "exception is not EXCEPTION_SINGLE_STEP: %x\n", rec->ExceptionCode);
433 return ExceptionContinueExecution;
436 static const BYTE single_stepcode[] = {
439 0x0d,0,1,0,0, /* or $0x100,%eax */
440 0x50, /* push %eax */
442 0x35,0,1,0,0, /* xor $0x100,%eax */
443 0x50, /* push %eax */
448 /* Test the alignment check (AC) flag handling. */
449 static const BYTE align_check_code[] = {
450 0x55, /* push %ebp */
451 0x89,0xe5, /* mov %esp,%ebp */
454 0x0d,0,0,4,0, /* or $0x40000,%eax */
455 0x50, /* push %eax */
457 0x89,0xe0, /* mov %esp, %eax */
458 0x8b,0x40,0x1, /* mov 0x1(%eax), %eax - cause exception */
461 0x35,0,0,4,0, /* xor $0x40000,%eax */
462 0x50, /* push %eax */
468 static DWORD align_check_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
469 CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
471 ok (!(context->EFlags & 0x40000), "eflags has AC bit set\n");
473 return ExceptionContinueExecution;
476 /* test single stepping over hardware breakpoint */
477 static DWORD bpx_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
478 CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
481 ok( rec->ExceptionCode == EXCEPTION_SINGLE_STEP,
482 "wrong exception code: %x\n", rec->ExceptionCode);
484 if(got_exception == 1) {
485 /* hw bp exception on first nop */
486 ok( context->Eip == (DWORD)code_mem, "eip is wrong: %x instead of %x\n",
487 context->Eip, (DWORD)code_mem);
488 ok( (context->Dr6 & 0xf) == 1, "B0 flag is not set in Dr6\n");
489 ok( !(context->Dr6 & 0x4000), "BS flag is set in Dr6\n");
490 context->Dr0 = context->Dr0 + 1; /* set hw bp again on next instruction */
491 context->EFlags |= 0x100; /* enable single stepping */
492 } else if( got_exception == 2) {
493 /* single step exception on second nop */
494 ok( context->Eip == (DWORD)code_mem + 1, "eip is wrong: %x instead of %x\n",
495 context->Eip, (DWORD)code_mem + 1);
496 todo_wine{ ok( (context->Dr6 & 0x4000), "BS flag is not set in Dr6\n"); };
497 /* depending on the win version the B0 bit is already set here as well
498 ok( (context->Dr6 & 0xf) == 0, "B0...3 flags in Dr6 shouldn't be set\n"); */
499 context->EFlags |= 0x100;
500 } else if( got_exception == 3) {
501 /* hw bp exception on second nop */
502 ok( context->Eip == (DWORD)code_mem + 1, "eip is wrong: %x instead of %x\n",
503 context->Eip, (DWORD)code_mem + 1);
504 todo_wine{ ok( (context->Dr6 & 0xf) == 1, "B0 flag is not set in Dr6\n"); };
505 ok( !(context->Dr6 & 0x4000), "BS flag is set in Dr6\n");
506 context->Dr0 = 0; /* clear breakpoint */
507 context->EFlags |= 0x100;
509 /* single step exception on ret */
510 ok( context->Eip == (DWORD)code_mem + 2, "eip is wrong: %x instead of %x\n",
511 context->Eip, (DWORD)code_mem + 2);
512 ok( (context->Dr6 & 0xf) == 0, "B0...3 flags in Dr6 shouldn't be set\n");
513 todo_wine{ ok( (context->Dr6 & 0x4000), "BS flag is not set in Dr6\n"); };
516 context->Dr6 = 0; /* clear status register */
517 return ExceptionContinueExecution;
520 static const BYTE dummy_code[] = { 0x90, 0x90, 0xc3 }; /* nop, nop, ret */
522 /* test int3 handling */
523 static DWORD int3_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
524 CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
526 ok( rec->ExceptionAddress == code_mem, "exception address not at: %p, but at %p\n",
527 code_mem, rec->ExceptionAddress);
529 ok( context->Eip == (DWORD)code_mem, "eip not at: %p, but at %#x\n", code_mem, context->Eip);
531 if(context->Eip == (DWORD)code_mem) context->Eip++; /* skip breakpoint */
533 return ExceptionContinueExecution;
536 static const BYTE int3_code[] = { 0xCC, 0xc3 }; /* int 3, ret */
539 static void test_exceptions(void)
544 if (!pNtGetContextThread || !pNtSetContextThread)
546 trace( "NtGetContextThread/NtSetContextThread not found, skipping tests\n" );
550 /* test handling of debug registers */
551 run_exception_test(dreg_handler, NULL, &segfault_code, sizeof(segfault_code));
553 ctx.ContextFlags = CONTEXT_DEBUG_REGISTERS;
554 res = pNtGetContextThread(GetCurrentThread(), &ctx);
555 ok (res == STATUS_SUCCESS,"NtGetContextThread failed with %x\n", res);
556 ok(ctx.Dr0 == 0x42424242,"failed to set debugregister 0 to 0x42424242, got %x\n", ctx.Dr0);
557 ok((ctx.Dr7 & ~0xdc00) == 0x155,"failed to set debugregister 7 to 0x155, got %x\n", ctx.Dr7);
559 /* test single stepping behavior */
561 run_exception_test(single_step_handler, NULL, &single_stepcode, sizeof(single_stepcode));
562 ok(got_exception == 3, "expected 3 single step exceptions, got %d\n", got_exception);
564 /* test alignment exceptions */
566 run_exception_test(align_check_handler, NULL, align_check_code, sizeof(align_check_code));
567 ok(got_exception == 0, "got %d alignment faults, expected 0\n", got_exception);
569 /* test single stepping over hardware breakpoint */
570 memset(&ctx, 0, sizeof(ctx));
571 ctx.Dr0 = (DWORD) code_mem; /* set hw bp on first nop */
573 ctx.ContextFlags = CONTEXT_DEBUG_REGISTERS;
574 res = pNtSetContextThread( GetCurrentThread(), &ctx);
575 ok( res == STATUS_SUCCESS, "NtSetContextThread faild with %x\n", res);
578 run_exception_test(bpx_handler, NULL, dummy_code, sizeof(dummy_code));
579 ok( got_exception == 4,"expected 4 exceptions, got %d\n", got_exception);
581 /* test int3 handling */
582 run_exception_test(int3_handler, NULL, int3_code, sizeof(int3_code));
585 static void test_debugger(void)
587 char cmdline[MAX_PATH];
588 PROCESS_INFORMATION pi;
589 STARTUPINFO si = { 0 };
591 DWORD continuestatus;
592 PVOID code_mem_address = NULL;
599 if(!pNtGetContextThread || !pNtSetContextThread || !pNtReadVirtualMemory || !pNtTerminateProcess)
601 skip("NtGetContextThread, NtSetContextThread, NtReadVirtualMemory or NtTerminateProcess not found\n)");
605 sprintf(cmdline, "%s %s %s", my_argv[0], my_argv[1], "debuggee");
606 ret = CreateProcess(NULL, cmdline, NULL, NULL, FALSE, DEBUG_PROCESS, NULL, NULL, &si, &pi);
607 ok(ret, "could not create child process error: %u\n", GetLastError());
613 continuestatus = DBG_CONTINUE;
614 ok(WaitForDebugEvent(&de, INFINITE), "reading debug event\n");
616 if (de.dwThreadId != pi.dwThreadId)
618 trace("event %d not coming from main thread, ignoring\n", de.dwDebugEventCode);
619 ContinueDebugEvent(de.dwProcessId, de.dwThreadId, DBG_CONTINUE);
623 if (de.dwDebugEventCode == CREATE_PROCESS_DEBUG_EVENT)
625 if(de.u.CreateProcessInfo.lpBaseOfImage != pNtCurrentTeb()->Peb->ImageBaseAddress)
627 skip("child process loaded at different address, terminating it\n");
628 pNtTerminateProcess(pi.hProcess, 1);
631 else if (de.dwDebugEventCode == EXCEPTION_DEBUG_EVENT)
637 status = pNtReadVirtualMemory(pi.hProcess, &code_mem, &code_mem_address,
638 sizeof(code_mem_address), &size_read);
639 ok(!status,"NtReadVirtualMemory failed with 0x%x\n", status);
640 status = pNtReadVirtualMemory(pi.hProcess, &test_stage, &stage,
641 sizeof(stage), &size_read);
642 ok(!status,"NtReadVirtualMemory failed with 0x%x\n", status);
644 ctx.ContextFlags = CONTEXT_FULL;
645 status = pNtGetContextThread(pi.hThread, &ctx);
646 ok(!status, "NtGetContextThread failed with 0x%x\n", status);
648 trace("exception 0x%x at %p firstchance=%d Eip=0x%x, Eax=0x%x\n",
649 de.u.Exception.ExceptionRecord.ExceptionCode,
650 de.u.Exception.ExceptionRecord.ExceptionAddress, de.u.Exception.dwFirstChance, ctx.Eip, ctx.Eax);
654 ok(FALSE, "got way too many exceptions, probaby caught in a infinite loop, terminating child\n");
655 pNtTerminateProcess(pi.hProcess, 1);
657 else if (counter >= 2) /* skip startup breakpoint */
661 ok((char *)ctx.Eip == (char *)code_mem_address + 0xb, "Eip at %x instead of %p\n",
662 ctx.Eip, (char *)code_mem_address + 0xb);
663 /* setting the context from debugger does not affect the context, the exception handlers gets */
664 /* uncomment once wine is fixed */
665 /* ctx.Eip = 0x12345; */
666 ctx.Eax = 0xf00f00f1;
668 /* let the debuggee handle the exception */
669 continuestatus = DBG_EXCEPTION_NOT_HANDLED;
673 if (de.u.Exception.dwFirstChance)
675 /* debugger gets first chance exception with unmodified ctx.Eip */
676 ok((char *)ctx.Eip == (char *)code_mem_address + 0xb, "Eip at 0x%x instead of %p\n",
677 ctx.Eip, (char *)code_mem_address + 0xb);
679 /* setting the context from debugger does not affect the context, the exception handlers gets */
680 /* uncomment once wine is fixed */
681 /* ctx.Eip = 0x12345; */
682 ctx.Eax = 0xf00f00f1;
684 /* pass exception to debuggee
685 * exception will not be handled and
686 * a second chance exception will be raised */
687 continuestatus = DBG_EXCEPTION_NOT_HANDLED;
691 /* debugger gets context after exception handler has played with it */
692 /* ctx.Eip is the same value the exception handler got */
693 if (de.u.Exception.ExceptionRecord.ExceptionCode == EXCEPTION_BREAKPOINT)
696 ok((char *)ctx.Eip == (char *)code_mem_address + 0xa, "Eip at 0x%x instead of %p\n",
697 ctx.Eip, (char *)code_mem_address + 0xa);
699 /* need to fixup Eip for debuggee */
700 if ((char *)ctx.Eip == (char *)code_mem_address + 0xa)
704 ok((char *)ctx.Eip == (char *)code_mem_address + 0xb, "Eip at 0x%x instead of %p\n",
705 ctx.Eip, (char *)code_mem_address + 0xb);
706 /* here we handle exception */
710 ok(FALSE, "unexpected stage %d\n", stage);
712 status = pNtSetContextThread(pi.hThread, &ctx);
713 ok(!status, "NtSetContextThread failed with 0x%x\n", status);
717 ContinueDebugEvent(de.dwProcessId, de.dwThreadId, continuestatus);
719 } while (de.dwDebugEventCode != EXIT_PROCESS_DEBUG_EVENT);
721 ok(CloseHandle(pi.hThread) != 0, "error %u\n", GetLastError());
722 ok(CloseHandle(pi.hProcess) != 0, "error %u\n", GetLastError());
727 static DWORD simd_fault_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
728 CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
730 int *stage = *(int **)(frame + 1);
735 /* fault while executing sse instruction */
736 context->Eip += 3; /* skip addps */
737 return ExceptionContinueExecution;
740 /* stage 2 - divide by zero fault */
741 if( rec->ExceptionCode == EXCEPTION_ILLEGAL_INSTRUCTION)
742 skip("system doesn't support SIMD exceptions\n");
744 ok( rec->ExceptionCode == STATUS_FLOAT_MULTIPLE_TRAPS,
745 "exception code: %#x, should be %#x\n",
746 rec->ExceptionCode, STATUS_FLOAT_MULTIPLE_TRAPS);
747 ok( rec->NumberParameters == 1, "# of params: %i, should be 1\n",
748 rec->NumberParameters);
749 if( rec->NumberParameters == 1 )
750 ok( rec->ExceptionInformation[0] == 0, "param #1: %lx, should be 0\n", rec->ExceptionInformation[0]);
753 context->Eip += 3; /* skip divps */
755 return ExceptionContinueExecution;
758 static const BYTE simd_exception_test[] = {
759 0x83, 0xec, 0x4, /* sub $0x4, %esp */
760 0x0f, 0xae, 0x1c, 0x24, /* stmxcsr (%esp) */
761 0x66, 0x81, 0x24, 0x24, 0xff, 0xfd, /* andw $0xfdff,(%esp) * enable divide by */
762 0x0f, 0xae, 0x14, 0x24, /* ldmxcsr (%esp) * zero exceptions */
763 0x6a, 0x01, /* push $0x1 */
764 0x6a, 0x01, /* push $0x1 */
765 0x6a, 0x01, /* push $0x1 */
766 0x6a, 0x01, /* push $0x1 */
767 0x0f, 0x10, 0x0c, 0x24, /* movups (%esp),%xmm1 * fill dividend */
768 0x0f, 0x57, 0xc0, /* xorps %xmm0,%xmm0 * clear divisor */
769 0x0f, 0x5e, 0xc8, /* divps %xmm0,%xmm1 * generate fault */
770 0x83, 0xc4, 0x10, /* add $0x10,%esp */
771 0x66, 0x81, 0x0c, 0x24, 0x00, 0x02, /* orw $0x200,(%esp) * disable exceptions */
772 0x0f, 0xae, 0x14, 0x24, /* ldmxcsr (%esp) */
773 0x83, 0xc4, 0x04, /* add $0x4,%esp */
777 static const BYTE sse_check[] = {
778 0x0f, 0x58, 0xc8, /* addps %xmm0,%xmm1 */
782 static void test_simd_exceptions(void)
786 /* test if CPU & OS can do sse */
789 run_exception_test(simd_fault_handler, &stage, sse_check, sizeof(sse_check));
791 skip("system doesn't support SSE\n");
795 /* generate a SIMD exception */
798 run_exception_test(simd_fault_handler, &stage, simd_exception_test,
799 sizeof(simd_exception_test));
800 ok( got_exception == 1, "got exception: %i, should be 1\n", got_exception);
803 #endif /* __i386__ */
805 START_TEST(exception)
808 pNtCurrentTeb = (void *)GetProcAddress( GetModuleHandleA("ntdll.dll"), "NtCurrentTeb" );
809 pNtGetContextThread = (void *)GetProcAddress( GetModuleHandleA("ntdll.dll"), "NtGetContextThread" );
810 pNtSetContextThread = (void *)GetProcAddress( GetModuleHandleA("ntdll.dll"), "NtSetContextThread" );
811 pNtReadVirtualMemory = (void *)GetProcAddress( GetModuleHandleA("ntdll.dll"), "NtReadVirtualMemory" );
812 pRtlRaiseException = (void *)GetProcAddress( GetModuleHandleA("ntdll.dll"), "RtlRaiseException" );
813 pNtTerminateProcess = (void *)GetProcAddress( GetModuleHandleA("ntdll.dll"), "NtTerminateProcess" );
814 pRtlAddVectoredExceptionHandler = (void *)GetProcAddress( GetModuleHandleA("ntdll.dll"),
815 "RtlAddVectoredExceptionHandler" );
816 pRtlRemoveVectoredExceptionHandler = (void *)GetProcAddress( GetModuleHandleA("ntdll.dll"),
817 "RtlRemoveVectoredExceptionHandler" );
820 trace( "NtCurrentTeb not found, skipping tests\n" );
824 if (pRtlAddVectoredExceptionHandler && pRtlRemoveVectoredExceptionHandler)
825 have_vectored_api = TRUE;
827 skip("RtlAddVectoredExceptionHandler or RtlRemoveVectoredExceptionHandler not found\n");
829 /* 1024 byte should be sufficient */
830 code_mem = VirtualAlloc(NULL, 1024, MEM_RESERVE | MEM_COMMIT, PAGE_EXECUTE_READWRITE);
832 trace("VirtualAlloc failed\n");
836 my_argc = winetest_get_mainargs( &my_argv );
839 /* child must be run under a debugger */
840 if (!pNtCurrentTeb()->Peb->BeingDebugged)
842 ok(FALSE, "child process not being debugged?\n");
846 if (pRtlRaiseException)
849 run_rtlraiseexception_test(0x12345);
850 run_rtlraiseexception_test(EXCEPTION_BREAKPOINT);
851 run_rtlraiseexception_test(EXCEPTION_INVALID_HANDLE);
853 run_rtlraiseexception_test(0x12345);
854 run_rtlraiseexception_test(EXCEPTION_BREAKPOINT);
855 run_rtlraiseexception_test(EXCEPTION_INVALID_HANDLE);
858 skip( "RtlRaiseException not found\n" );
860 /* rest of tests only run in parent */
866 test_rtlraiseexception();
868 test_simd_exceptions();
870 VirtualFree(code_mem, 1024, MEM_RELEASE);