ntdll/tests: Add more tests for calling int $0x2d on x86 and x86_64. (v2)
Sebastian Lackner
sebastian at fds-team.de
Thu Feb 18 03:34:01 CST 2016
Signed-off-by: Sebastian Lackner <sebastian at fds-team.de>
---
Oops. There was still a mistake in the x86_64 asm code, which was hiding some test errors.
Replaces http://source.winehq.org/patches/data/119382.
The assembler code is a bit tricky, because it contains overlapping assembler
instructions, to check at which point exactly execution resumes after handling
the int $0x2d.
dlls/ntdll/tests/exception.c | 190 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 190 insertions(+)
diff --git a/dlls/ntdll/tests/exception.c b/dlls/ntdll/tests/exception.c
index 8ec7408..94ccd7a 100644
--- a/dlls/ntdll/tests/exception.c
+++ b/dlls/ntdll/tests/exception.c
@@ -945,6 +945,13 @@ static void test_debugger(void)
/* here we handle exception */
}
}
+ else if (stage == 7 || stage == 8)
+ {
+ ok(de.u.Exception.ExceptionRecord.ExceptionCode == EXCEPTION_BREAKPOINT,
+ "expected EXCEPTION_BREAKPOINT, got %08x\n", de.u.Exception.ExceptionRecord.ExceptionCode);
+
+ if (stage == 8) continuestatus = DBG_EXCEPTION_NOT_HANDLED;
+ }
else
ok(FALSE, "unexpected stage %x\n", stage);
@@ -1339,6 +1346,8 @@ static void test_dpe_exceptions(void)
#elif defined(__x86_64__)
+#define is_wow64 0
+
#define UNW_FLAG_NHANDLER 0
#define UNW_FLAG_EHANDLER 1
#define UNW_FLAG_UHANDLER 2
@@ -1865,6 +1874,181 @@ static void test_ripevent(DWORD numexc)
pRtlRemoveVectoredExceptionHandler(vectored_handler);
}
+static DWORD debug_service_exceptions;
+
+static LONG CALLBACK debug_service_handler(EXCEPTION_POINTERS *ExceptionInfo)
+{
+ EXCEPTION_RECORD *rec = ExceptionInfo->ExceptionRecord;
+ trace("vect. handler %08x addr:%p\n", rec->ExceptionCode, rec->ExceptionAddress);
+
+ ok(rec->ExceptionCode == EXCEPTION_BREAKPOINT, "ExceptionCode is %08x instead of %08x\n",
+ rec->ExceptionCode, EXCEPTION_BREAKPOINT);
+
+#ifdef __i386__
+ ok(rec->NumberParameters == (is_wow64 ? 1 : 3),
+ "ExceptionParameters is %d instead of %d\n", rec->NumberParameters, is_wow64 ? 1 : 3);
+ ok(rec->ExceptionInformation[0] == ExceptionInfo->ContextRecord->Eax,
+ "expected ExceptionInformation[0] = %x, got %lx\n",
+ ExceptionInfo->ContextRecord->Eax, rec->ExceptionInformation[0]);
+ if (!is_wow64)
+ {
+ ok(rec->ExceptionInformation[1] == 0x11111111,
+ "got ExceptionInformation[1] = %lx\n", rec->ExceptionInformation[1]);
+ ok(rec->ExceptionInformation[2] == 0x22222222,
+ "got ExceptionInformation[2] = %lx\n", rec->ExceptionInformation[2]);
+ }
+#else
+ ok(rec->NumberParameters == 1,
+ "ExceptionParameters is %d instead of 1\n", rec->NumberParameters);
+ ok(rec->ExceptionInformation[0] == ExceptionInfo->ContextRecord->Rax,
+ "expected ExceptionInformation[0] = %lx, got %lx\n",
+ ExceptionInfo->ContextRecord->Rax, rec->ExceptionInformation[0]);
+#endif
+
+ debug_service_exceptions++;
+ return (rec->ExceptionCode == EXCEPTION_BREAKPOINT) ? EXCEPTION_CONTINUE_EXECUTION : EXCEPTION_CONTINUE_SEARCH;
+}
+
+#ifdef __i386__
+
+static const BYTE call_debug_service_code[] = {
+ 0x53, /* pushl %ebx */
+ 0x57, /* pushl %edi */
+ 0x8b, 0x44, 0x24, 0x0c, /* movl 12(%esp),%eax */
+ 0xb9, 0x11, 0x11, 0x11, 0x11, /* movl $0x11111111,%ecx */
+ 0xba, 0x22, 0x22, 0x22, 0x22, /* movl $0x22222222,%edx */
+ 0xbb, 0x33, 0x33, 0x33, 0x33, /* movl $0x33333333,%ebx */
+ 0xbf, 0x44, 0x44, 0x44, 0x44, /* movl $0x44444444,%edi */
+ 0xcd, 0x2d, /* int $0x2d */
+ 0xeb, /* jmp $+17 */
+ 0x0f, 0x1f, 0x00, /* nop */
+ 0x31, 0xc0, /* xorl %eax,%eax */
+ 0xeb, 0x0c, /* jmp $+14 */
+ 0x90, 0x90, 0x90, 0x90, /* nop */
+ 0x90, 0x90, 0x90, 0x90,
+ 0x90,
+ 0x31, 0xc0, /* xorl %eax,%eax */
+ 0x40, /* incl %eax */
+ 0x5f, /* popl %edi */
+ 0x5b, /* popl %ebx */
+ 0xc3, /* ret */
+};
+
+#else
+
+static const BYTE call_debug_service_code[] = {
+ 0x53, /* push %rbx */
+ 0x57, /* push %rdi */
+ 0x48, 0x89, 0xc8, /* movl %rcx,%rax */
+ 0x48, 0xb9, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, /* movabs $0x1111111111111111,%rcx */
+ 0x48, 0xba, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, /* movabs $0x2222222222222222,%rdx */
+ 0x48, 0xbb, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, /* movabs $0x3333333333333333,%rbx */
+ 0x48, 0xbf, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, /* movabs $0x4444444444444444,%rdi */
+ 0xcd, 0x2d, /* int $0x2d */
+ 0xeb, /* jmp $+17 */
+ 0x0f, 0x1f, 0x00, /* nop */
+ 0x48, 0x31, 0xc0, /* xor %rax,%rax */
+ 0xeb, 0x0e, /* jmp $+16 */
+ 0x90, 0x90, 0x90, 0x90, /* nop */
+ 0x90, 0x90, 0x90, 0x90,
+ 0x48, 0x31, 0xc0, /* xor %rax,%rax */
+ 0x48, 0xff, 0xc0, /* inc %rax */
+ 0x5f, /* pop %rdi */
+ 0x5b, /* pop %rbx */
+ 0xc3, /* ret */
+};
+
+#endif
+
+static void test_debug_service(DWORD numexc)
+{
+ const BOOL is_win64 = (sizeof(void *) > sizeof(int));
+ DWORD (CDECL *func)(DWORD_PTR) = code_mem;
+ DWORD expected_exc, expected_ret;
+ void *vectored_handler;
+ DWORD ret;
+
+ /* code will return 0 if execution resumes immediately after "int $0x2d", otherwise 1 */
+ memcpy(code_mem, call_debug_service_code, sizeof(call_debug_service_code));
+
+ vectored_handler = pRtlAddVectoredExceptionHandler(TRUE, &debug_service_handler);
+ ok(vectored_handler != 0, "RtlAddVectoredExceptionHandler failed\n");
+
+ expected_exc = numexc;
+ expected_ret = (numexc != 0);
+
+ /* BREAKPOINT_BREAK */
+ debug_service_exceptions = 0;
+ ret = func(0);
+ ok(debug_service_exceptions == expected_exc,
+ "BREAKPOINT_BREAK generated %u exceptions, expected %u\n",
+ debug_service_exceptions, expected_exc);
+ todo_wine_if(is_win64)
+ ok(ret == expected_ret,
+ "BREAKPOINT_BREAK returned %u, expected %u\n", ret, expected_ret);
+
+ /* BREAKPOINT_PROMPT */
+ debug_service_exceptions = 0;
+ ret = func(2);
+ ok(debug_service_exceptions == expected_exc,
+ "BREAKPOINT_PROMPT generated %u exceptions, expected %u\n",
+ debug_service_exceptions, expected_exc);
+ todo_wine_if(is_win64)
+ ok(ret == expected_ret,
+ "BREAKPOINT_PROMPT returned %u, expected %u\n", ret, expected_ret);
+
+ /* invalid debug service */
+ debug_service_exceptions = 0;
+ ret = func(6);
+ ok(debug_service_exceptions == expected_exc,
+ "invalid debug service generated %u exceptions, expected %u\n",
+ debug_service_exceptions, expected_exc);
+ todo_wine_if(is_win64)
+ ok(ret == expected_ret,
+ "invalid debug service returned %u, expected %u\n", ret, expected_ret);
+
+ expected_exc = (is_wow64 ? numexc : 0);
+ expected_ret = (is_wow64 && numexc);
+
+ /* BREAKPOINT_PRINT */
+ debug_service_exceptions = 0;
+ ret = func(1);
+ ok(debug_service_exceptions == expected_exc,
+ "BREAKPOINT_PRINT generated %u exceptions, expected %u\n",
+ debug_service_exceptions, expected_exc);
+ ok(ret == expected_ret,
+ "BREAKPOINT_PRINT returned %u, expected %u\n", ret, expected_ret);
+
+ /* BREAKPOINT_LOAD_SYMBOLS */
+ debug_service_exceptions = 0;
+ ret = func(3);
+ ok(debug_service_exceptions == expected_exc,
+ "BREAKPOINT_LOAD_SYMBOLS generated %u exceptions, expected %u\n",
+ debug_service_exceptions, expected_exc);
+ ok(ret == expected_ret,
+ "BREAKPOINT_LOAD_SYMBOLS returned %u, expected %u\n", ret, expected_ret);
+
+ /* BREAKPOINT_UNLOAD_SYMBOLS */
+ debug_service_exceptions = 0;
+ ret = func(4);
+ ok(debug_service_exceptions == expected_exc,
+ "BREAKPOINT_UNLOAD_SYMBOLS generated %u exceptions, expected %u\n",
+ debug_service_exceptions, expected_exc);
+ ok(ret == expected_ret,
+ "BREAKPOINT_UNLOAD_SYMBOLS returned %u, expected %u\n", ret, expected_ret);
+
+ /* BREAKPOINT_COMMAND_STRING */
+ debug_service_exceptions = 0;
+ ret = func(5);
+ ok(debug_service_exceptions == expected_exc || broken(debug_service_exceptions == numexc),
+ "BREAKPOINT_COMMAND_STRING generated %u exceptions, expected %u\n",
+ debug_service_exceptions, expected_exc);
+ ok(ret == expected_ret || broken(ret == (numexc != 0)),
+ "BREAKPOINT_COMMAND_STRING returned %u, expected %u\n", ret, expected_ret);
+
+ pRtlRemoveVectoredExceptionHandler(vectored_handler);
+}
+
static void test_vectored_continue_handler(void)
{
PVOID handler1, handler2;
@@ -1984,6 +2168,10 @@ START_TEST(exception)
test_ripevent(0);
test_stage = 6;
test_ripevent(1);
+ test_stage = 7;
+ test_debug_service(0);
+ test_stage = 8;
+ test_debug_service(1);
}
else
skip( "RtlRaiseException not found\n" );
@@ -1998,6 +2186,7 @@ START_TEST(exception)
test_debug_registers();
test_outputdebugstring(1, FALSE);
test_ripevent(1);
+ test_debug_service(1);
test_vectored_continue_handler();
test_debugger();
test_simd_exceptions();
@@ -2018,6 +2207,7 @@ START_TEST(exception)
test_debug_registers();
test_outputdebugstring(1, FALSE);
test_ripevent(1);
+ test_debug_service(1);
test_vectored_continue_handler();
test_virtual_unwind();
--
2.7.1
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