ReactOS  0.4.15-dev-1201-gb2cf5a4
SetUnhandledExceptionFilter.c File Reference
#include "precomp.h"
#include <xmmintrin.h>
Include dependency graph for SetUnhandledExceptionFilter.c:

Go to the source code of this file.

Functions

LONG WINAPI Filter1 (LPEXCEPTION_POINTERS p)
 
LONG WINAPI Filter2 (LPEXCEPTION_POINTERS p)
 
static VOID TestSetUnhandledExceptionFilter (VOID)
 
static LONG WINAPI ExceptionFilterSSESupport (LPEXCEPTION_POINTERS exp)
 
static LONG WINAPI ExceptionFilterSSEException (LPEXCEPTION_POINTERS exp)
 
static VOID TestSSEExceptions (VOID)
 
 START_TEST (SetUnhandledExceptionFilter)
 

Variables

static BOOL ExceptionCaught = FALSE
 

Function Documentation

◆ ExceptionFilterSSEException()

static LONG WINAPI ExceptionFilterSSEException ( LPEXCEPTION_POINTERS  exp)
static

Definition at line 70 of file SetUnhandledExceptionFilter.c.

71 {
72  PEXCEPTION_RECORD rec = exp->ExceptionRecord;
73  PCONTEXT ctx = exp->ContextRecord;
74 #ifdef _M_AMD64
75  ULONG ExpectedExceptionCode = STATUS_FLOAT_DIVIDE_BY_ZERO;
76 #else
77  ULONG ExpectedExceptionCode = STATUS_FLOAT_MULTIPLE_TRAPS;
78 #endif
79 
80  trace("Exception raised while dividing by 0.\n");
81 
82  ok(rec->ExceptionCode == ExpectedExceptionCode, "Exception code is 0x%08x.\n", (unsigned int)rec->ExceptionCode);
83 
84  if(rec->ExceptionCode != ExpectedExceptionCode)
85  {
86  trace("Unexpected exception code, terminating!\n");
88  }
89 
90  ok((ctx->ContextFlags & CONTEXT_CONTROL) == CONTEXT_CONTROL, "Context does not contain control register.\n");
91 
93 
94 #ifdef _M_IX86
95  ctx->Eip += 3;
96 #elif defined(_M_AMD64)
97  ctx->Rip += 3;
98 #else
99 #error Architecture not handled
100 #endif
101 
103 }
#define CONTEXT_CONTROL
Definition: nt_native.h:1369
#define TRUE
Definition: types.h:120
static BOOL ExceptionCaught
#define STATUS_FLOAT_DIVIDE_BY_ZERO
Definition: ntstatus.h:378
DWORD ExceptionCode
Definition: compat.h:208
#define EXCEPTION_EXECUTE_HANDLER
Definition: excpt.h:85
#define trace
Definition: atltest.h:70
#define STATUS_FLOAT_MULTIPLE_TRAPS
Definition: ntstatus.h:808
#define ok(value,...)
Definition: atltest.h:57
DWORD exp
Definition: msg.c:16033
unsigned int ULONG
Definition: retypes.h:1
#define EXCEPTION_CONTINUE_EXECUTION
Definition: excpt.h:87

Referenced by TestSSEExceptions().

◆ ExceptionFilterSSESupport()

static LONG WINAPI ExceptionFilterSSESupport ( LPEXCEPTION_POINTERS  exp)
static

Definition at line 40 of file SetUnhandledExceptionFilter.c.

41 {
42  PEXCEPTION_RECORD rec = exp->ExceptionRecord;
43  PCONTEXT ctx = exp->ContextRecord;
44 
45  trace("Exception raised while using SSE instructions.\n");
46 
47  ok(rec->ExceptionCode == EXCEPTION_ILLEGAL_INSTRUCTION, "Exception code is 0x%08x.\n", (unsigned int)rec->ExceptionCode);
48 
50  {
51  trace("Unexpected exception code, terminating!\n");
53  }
54 
55  ok((ctx->ContextFlags & CONTEXT_CONTROL) == CONTEXT_CONTROL, "Context does not contain control register.\n");
56 
57 #ifdef _M_IX86
58  ctx->Eip += 3;
59 #elif defined(_M_AMD64)
60  ctx->Rip += 3;
61 #else
62 #error Architecture not handled
63 #endif
64 
66 }
#define CONTEXT_CONTROL
Definition: nt_native.h:1369
DWORD ExceptionCode
Definition: compat.h:208
#define EXCEPTION_EXECUTE_HANDLER
Definition: excpt.h:85
#define trace
Definition: atltest.h:70
#define ok(value,...)
Definition: atltest.h:57
DWORD exp
Definition: msg.c:16033
#define EXCEPTION_ILLEGAL_INSTRUCTION
Definition: winbase.h:324
#define EXCEPTION_CONTINUE_EXECUTION
Definition: excpt.h:87

Referenced by TestSSEExceptions().

◆ Filter1()

Definition at line 16 of file SetUnhandledExceptionFilter.c.

16 { return 0; }

Referenced by TestSetUnhandledExceptionFilter().

◆ Filter2()

Definition at line 17 of file SetUnhandledExceptionFilter.c.

17 { return 1; }

Referenced by TestSetUnhandledExceptionFilter().

◆ START_TEST()

START_TEST ( SetUnhandledExceptionFilter  )

Definition at line 207 of file SetUnhandledExceptionFilter.c.

208 {
211 }
static VOID TestSetUnhandledExceptionFilter(VOID)
static VOID TestSSEExceptions(VOID)

◆ TestSetUnhandledExceptionFilter()

static VOID TestSetUnhandledExceptionFilter ( VOID  )
static

Definition at line 26 of file SetUnhandledExceptionFilter.c.

27 {
31  ok(p1 != Filter1, "SetUnhandledExceptionFilter returned what was set, not prev\n");
32  ok(p2 != Filter2, "SetUnhandledExceptionFilter returned what was set, not prev\n");
33  ok(p2 == Filter1, "SetUnhandledExceptionFilter didn't return previous filter\n");
34  ok(p1 != p2, "SetUnhandledExceptionFilter seems to return random stuff\n");
35 
37  ok(p1 == Filter2, "SetUnhandledExceptionFilter didn't return previous filter\n");
38 }
LONG WINAPI Filter1(LPEXCEPTION_POINTERS p)
LPTOP_LEVEL_EXCEPTION_FILTER WINAPI DECLSPEC_HOTPATCH SetUnhandledExceptionFilter(IN LPTOP_LEVEL_EXCEPTION_FILTER lpTopLevelExceptionFilter)
Definition: except.c:792
smooth NULL
Definition: ftsmooth.c:416
LONG WINAPI Filter2(LPEXCEPTION_POINTERS p)
PTOP_LEVEL_EXCEPTION_FILTER LPTOP_LEVEL_EXCEPTION_FILTER
Definition: winbase.h:1419
#define ok(value,...)
Definition: atltest.h:57

Referenced by START_TEST().

◆ TestSSEExceptions()

static VOID TestSSEExceptions ( VOID  )
static

Definition at line 109 of file SetUnhandledExceptionFilter.c.

110 {
112  BOOL supportsSSE = FALSE;
113  unsigned int csr;
114 
115  /* Test SSE support for the CPU */
117  ok(p == NULL, "Previous filter should be NULL\n");
118 #ifdef _MSC_VER
119 #if defined(_M_AMD64)
120  {
121  __m128 xmm = { { 0 } };
122  xmm = _mm_xor_ps(xmm, xmm);
123  if (!ExceptionCaught) supportsSSE = TRUE;
124  }
125 #else
126  __asm
127  {
128  xorps xmm0, xmm0
129  mov supportsSSE, 0x1
130  }
131 #endif
132 #else
133  __asm__(
134  "xorps %%xmm0, %%xmm0\n"
135  "movl $1, %0\n"
136  : "=r"(supportsSSE)
137  );
138 #endif /* _MSC_VER */
139  if(!supportsSSE)
140  {
141  skip("CPU doesn't support SSE instructions.\n");
143  return;
144  }
145  /* Deliberately throw a divide by 0 exception */
147  ok(p == ExceptionFilterSSESupport, "Unexpected old filter : 0x%p", p);
148 
149  /* Unmask divide by 0 exception */
150  csr = _mm_getcsr();
151  _mm_setcsr(csr & 0xFFFFFDFF);
152 
153  /* We can't use _mm_div_ps, as it masks the exception before performing anything*/
154 #if defined(_MSC_VER)
155 #if defined(_M_AMD64)
156  {
157  __m128 xmm1 = { { 1., 1. } }, xmm2 = { { 0 } };
158  /* Wait, aren't exceptions masked? Yes, but actually no. */
159  xmm1 = _mm_div_ps(xmm1, xmm2);
160  if (!ExceptionCaught) supportsSSE = TRUE;
161  }
162 #else
163  __asm
164  {
165  xorps xmm0, xmm0
166  push 0x3f800000
167  push 0x3f800000
168  push 0x3f800000
169  push 0x3f800000
170 
171  movups xmm1, [esp]
172 
173  /* Divide by 0 */
174  divps xmm1, xmm0
175 
176  /* Clean up */
177  add esp, 16
178  }
179 #endif
180 #else
181  __asm__ (
182  "xorps %%xmm0, %%xmm0\n"
183  "pushl $0x3f800000\n"
184  "pushl $0x3f800000\n"
185  "pushl $0x3f800000\n"
186  "pushl $0x3f800000\n"
187  "movups (%%esp), %%xmm1\n"
188 
189  /* Divide by 0 */
190  "divps %%xmm0, %%xmm1\n"
191 
192  /* Clean up */
193  "addl $16, %%esp\n"
194  :
195  );
196 #endif /* _MSC_VER */
197 
198  /* Restore mxcsr */
199  _mm_setcsr(csr);
200 
201  ok(ExceptionCaught, "The exception was not caught.\n");
202 
204  ok(p == ExceptionFilterSSEException, "Unexpected old filter : 0x%p", p);
205 }
int add
Definition: i386-dis.c:3122
#define TRUE
Definition: types.h:120
static LONG WINAPI ExceptionFilterSSESupport(LPEXCEPTION_POINTERS exp)
static BOOL ExceptionCaught
__INTRIN_INLINE void _mm_setcsr(unsigned int val)
Definition: xmmintrin.h:78
__m128 _mm_xor_ps(__m128 a, __m128 b)
#define FALSE
Definition: types.h:117
unsigned int BOOL
Definition: ntddk_ex.h:94
LPTOP_LEVEL_EXCEPTION_FILTER WINAPI DECLSPEC_HOTPATCH SetUnhandledExceptionFilter(IN LPTOP_LEVEL_EXCEPTION_FILTER lpTopLevelExceptionFilter)
Definition: except.c:792
__asm__("\t.globl GetPhys\n" "GetPhys:\t\n" "mflr 0\n\t" "stwu 0,-16(1)\n\t" "mfmsr 5\n\t" "andi. 6,5,0xffef\n\t" "mtmsr 6\n\t" "isync\n\t" "sync\n\t" "lwz 3,0(3)\n\t" "mtmsr 5\n\t" "isync\n\t" "sync\n\t" "lwz 0,0(1)\n\t" "addi 1,1,16\n\t" "mtlr 0\n\t" "blr")
__m128 _mm_div_ps(__m128 a, __m128 b)
smooth NULL
Definition: ftsmooth.c:416
__INTRIN_INLINE unsigned int _mm_getcsr(void)
Definition: xmmintrin.h:71
__m128
Definition: xmmintrin.h:35
PTOP_LEVEL_EXCEPTION_FILTER LPTOP_LEVEL_EXCEPTION_FILTER
Definition: winbase.h:1419
static LONG WINAPI ExceptionFilterSSEException(LPEXCEPTION_POINTERS exp)
#define ok(value,...)
Definition: atltest.h:57
#define skip(...)
Definition: atltest.h:64
GLfloat GLfloat p
Definition: glext.h:8902
static void push(calc_node_t *op)
Definition: rpn_ieee.c:113

Referenced by START_TEST().

Variable Documentation

◆ ExceptionCaught

BOOL ExceptionCaught = FALSE
static

Definition at line 68 of file SetUnhandledExceptionFilter.c.

Referenced by ExceptionFilterSSEException(), and TestSSEExceptions().