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Commit e5aafd9e authored by Dāvis Mosāns's avatar Dāvis Mosāns Committed by Alexandre Julliard
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ntdll/tests: Test NtContinue on x86-64.

Co-authored-by: 's avatarJinoh Kang <jinoh.kang.kr@gmail.com>
parent 12141ad6
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dlls/ntdll/tests/exception.c
View file @ e5aafd9e
......@@ -4425,6 +4425,169 @@ static void test_thread_context(void)
#undef COMPARE
}
static void test_continue(void)
{
struct context_pair {
CONTEXT before;
CONTEXT after;
} contexts;
NTSTATUS (*func_ptr)( struct context_pair *, BOOL alertable, void *continue_func, void *capture_func ) = code_mem;
int i;
static const BYTE call_func[] =
{
/* ret at 8*13(rsp) */
/* need to preserve these */
0x53, /* push %rbx; 8*12(rsp) */
0x55, /* push %rbp; 8*11(rsp) */
0x56, /* push %rsi; 8*10(rsp) */
0x57, /* push %rdi; 8*9(rsp) */
0x41, 0x54, /* push %r12; 8*8(rsp) */
0x41, 0x55, /* push %r13; 8*7(rsp) */
0x41, 0x56, /* push %r14; 8*6(rsp) */
0x41, 0x57, /* push %r15; 8*5(rsp) */
0x48, 0x83, 0xec, 0x28, /* sub $0x28, %rsp; reserve space for rsp and outgoing reg params */
0x48, 0x89, 0x64, 0x24, 0x20, /* mov %rsp, 8*4(%rsp); for stack validation */
/* save args */
0x48, 0x89, 0x4c, 0x24, 0x70, /* mov %rcx, 8*14(%rsp) */
0x48, 0x89, 0x54, 0x24, 0x78, /* mov %rdx, 8*15(%rsp) */
0x4c, 0x89, 0x84, 0x24, 0x80, 0x00, 0x00, 0x00, /* mov %r8, 8*16(%rsp) */
0x4c, 0x89, 0x8c, 0x24, 0x88, 0x00, 0x00, 0x00, /* mov %r9, 8*17(%rsp) */
/* invoke capture context */
0x41, 0xff, 0xd1, /* call *%r9 */
/* overwrite general registers */
0x48, 0xb8, 0xef, 0xbe, 0xad, 0xde, 0xef, 0xbe, 0xad, 0xde, /* movabs $0xdeadbeefdeadbeef, %rax */
0x48, 0x89, 0xc1, /* mov %rax, %rcx */
0x48, 0x89, 0xc2, /* mov %rax, %rdx */
0x48, 0x89, 0xc3, /* mov %rax, %rbx */
0x48, 0x89, 0xc5, /* mov %rax, %rbp */
0x48, 0x89, 0xc6, /* mov %rax, %rsi */
0x48, 0x89, 0xc7, /* mov %rax, %rdi */
0x49, 0x89, 0xc0, /* mov %rax, %r8 */
0x49, 0x89, 0xc1, /* mov %rax, %r9 */
0x49, 0x89, 0xc2, /* mov %rax, %r10 */
0x49, 0x89, 0xc3, /* mov %rax, %r11 */
0x49, 0x89, 0xc4, /* mov %rax, %r12 */
0x49, 0x89, 0xc5, /* mov %rax, %r13 */
0x49, 0x89, 0xc6, /* mov %rax, %r14 */
0x49, 0x89, 0xc7, /* mov %rax, %r15 */
/* overwrite SSE registers */
0x66, 0x48, 0x0f, 0x6e, 0xc0, /* movq %rax, %xmm0 */
0x66, 0x0f, 0x6c, 0xc0, /* punpcklqdq %xmm0, %xmm0; extend to high quadword */
0x0f, 0x28, 0xc8, /* movaps %xmm0, %xmm1 */
0x0f, 0x28, 0xd0, /* movaps %xmm0, %xmm2 */
0x0f, 0x28, 0xd8, /* movaps %xmm0, %xmm3 */
0x0f, 0x28, 0xe0, /* movaps %xmm0, %xmm4 */
0x0f, 0x28, 0xe8, /* movaps %xmm0, %xmm5 */
0x0f, 0x28, 0xf0, /* movaps %xmm0, %xmm6 */
0x0f, 0x28, 0xf8, /* movaps %xmm0, %xmm7 */
0x44, 0x0f, 0x28, 0xc0, /* movaps %xmm0, %xmm8 */
0x44, 0x0f, 0x28, 0xc8, /* movaps %xmm0, %xmm9 */
0x44, 0x0f, 0x28, 0xd0, /* movaps %xmm0, %xmm10 */
0x44, 0x0f, 0x28, 0xd8, /* movaps %xmm0, %xmm11 */
0x44, 0x0f, 0x28, 0xe0, /* movaps %xmm0, %xmm12 */
0x44, 0x0f, 0x28, 0xe8, /* movaps %xmm0, %xmm13 */
0x44, 0x0f, 0x28, 0xf0, /* movaps %xmm0, %xmm14 */
0x44, 0x0f, 0x28, 0xf8, /* movaps %xmm0, %xmm15 */
/* FIXME: overwrite debug, x87 FPU and AVX registers to test those */
/* load args */
0x48, 0x8b, 0x4c, 0x24, 0x70, /* mov 8*14(%rsp), %rcx; context */
0x48, 0x8b, 0x54, 0x24, 0x78, /* mov 8*15(%rsp), %rdx; alertable */
0x48, 0x83, 0xec, 0x70, /* sub $0x70, %rsp; change stack */
/* setup context to return to label 1 */
0x48, 0x8d, 0x05, 0x18, 0x00, 0x00, 0x00, /* lea 1f(%rip), %rax */
0x48, 0x89, 0x81, 0xf8, 0x00, 0x00, 0x00, /* mov %rax, 0xf8(%rcx); context.Rip */
/* flip some EFLAGS */
0x9c, /* pushf */
/*
0x0001 Carry flag
0x0004 Parity flag
0x0010 Auxiliary Carry flag
0x0040 Zero flag
0x0080 Sign flag
FIXME: 0x0400 Direction flag - not changing as it breaks Wine
0x0800 Overflow flag
~0x4000~ Nested task flag - not changing - breaks Wine
= 0x8d5
*/
0x48, 0x81, 0x34, 0x24, 0xd5, 0x08, 0x00, 0x00, /* xorq $0x8d5, (%rsp) */
0x9d, /* popf */
/* invoke NtContinue... */
0xff, 0x94, 0x24, 0xf0, 0x00, 0x00, 0x00, /* call *8*16+0x70(%rsp) */
/* validate stack pointer */
0x48, 0x3b, 0x64, 0x24, 0x20, /* 1: cmp 0x20(%rsp), %rsp */
0x74, 0x02, /* je 2f; jump over ud2 */
0x0f, 0x0b, /* ud2; stack pointer invalid, let's crash */
/* invoke capture context */
0x48, 0x8b, 0x4c, 0x24, 0x70, /* 2: mov 8*14(%rsp), %rcx; context */
0x48, 0x81, 0xc1, 0xd0, 0x04, 0x00, 0x00, /* add $0x4d0, %rcx; +sizeof(CONTEXT) to get context->after */
0xff, 0x94, 0x24, 0x88, 0x00, 0x00, 0x00, /* call *8*17(%rsp) */
/* free stack */
0x48, 0x83, 0xc4, 0x28, /* add $0x28, %rsp */
/* restore back */
0x41, 0x5f, /* pop %r15 */
0x41, 0x5e, /* pop %r14 */
0x41, 0x5d, /* pop %r13 */
0x41, 0x5c, /* pop %r12 */
0x5f, /* pop %rdi */
0x5e, /* pop %rsi */
0x5d, /* pop %rbp */
0x5b, /* pop %rbx */
0xc3 /* ret */
};
if (!pRtlCaptureContext)
{
win_skip("RtlCaptureContext is not available.\n");
return;
}
memcpy( func_ptr, call_func, sizeof(call_func) );
FlushInstructionCache( GetCurrentProcess(), func_ptr, sizeof(call_func) );
func_ptr( &contexts, FALSE, NtContinue, pRtlCaptureContext );
#define COMPARE(reg) \
ok( contexts.before.reg == contexts.after.reg, "wrong " #reg " %p/%p\n", (void *)(ULONG64)contexts.before.reg, (void *)(ULONG64)contexts.after.reg )
COMPARE( Rax );
COMPARE( Rdx );
COMPARE( Rbx );
COMPARE( Rbp );
COMPARE( Rsi );
COMPARE( Rdi );
COMPARE( R8 );
COMPARE( R9 );
COMPARE( R10 );
COMPARE( R11 );
COMPARE( R12 );
COMPARE( R13 );
COMPARE( R14 );
COMPARE( R15 );
for (i = 0; i < 16; i++)
ok( !memcmp( &contexts.before.Xmm0 + i, &contexts.after.Xmm0 + i, sizeof(contexts.before.Xmm0) ),
"wrong xmm%u %08I64x%08I64x/%08I64x%08I64x\n", i, *(&contexts.before.Xmm0.High + i*2), *(&contexts.before.Xmm0.Low + i*2),
*(&contexts.after.Xmm0.High + i*2), *(&contexts.after.Xmm0.Low + i*2) );
#undef COMPARE
}
static void test_wow64_context(void)
{
const char appname[] = "C:\\windows\\syswow64\\cmd.exe";
......@@ -12469,6 +12632,7 @@ START_TEST(exception)
test_debug_registers_wow64();
test_debug_service(1);
test_simd_exceptions();
test_continue();
test_virtual_unwind();
test___C_specific_handler();
test_restore_context();
......
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