Module: wine Branch: master Commit: f09f9ef5e1dbdd9521fb05031693baf362dd555b URL: http://source.winehq.org/git/wine.git/?a=commit;h=f09f9ef5e1dbdd9521fb050316...
Author: Peter Beutner p.beutner@gmx.net Date: Thu Mar 8 22:47:14 2007 +0100
ntdll: Testcase for handling SIMD exceptions.
---
dlls/ntdll/tests/exception.c | 78 +++++++++++++++++++++++++++++++++++++++++- 1 files changed, 77 insertions(+), 1 deletions(-)
diff --git a/dlls/ntdll/tests/exception.c b/dlls/ntdll/tests/exception.c index 07f4bc6..58306d9 100644 --- a/dlls/ntdll/tests/exception.c +++ b/dlls/ntdll/tests/exception.c @@ -723,6 +723,82 @@ static void test_debugger(void) 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, "# 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)); + 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)); + ok( got_exception == 1, "got exception: %i, should be 1\n", got_exception); +} + #endif /* __i386__ */
START_TEST(exception) @@ -787,8 +863,8 @@ START_TEST(exception) test_prot_fault(); test_exceptions(); test_rtlraiseexcpetion(); - test_debugger(); + test_simd_exceptions();
VirtualFree(code_mem, 1024, MEM_RELEASE); #endif