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Commit 32c618b7 authored by Martin Storsjo's avatar Martin Storsjo Committed by Alexandre Julliard
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ntdll: Add initial tests for arm64 RtlVirtualUnwind.

Signed-off-by: 's avatarMartin Storsjo <martin@martin.st> Signed-off-by: 's avatarAlexandre Julliard <julliard@winehq.org>
parent ab94abb1
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dlls/ntdll/tests/exception.c
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......@@ -4225,6 +4225,285 @@ static void test_debug_service(DWORD numexc)
#elif defined(__aarch64__)
#define UNW_FLAG_NHANDLER 0
#define UNW_FLAG_EHANDLER 1
#define UNW_FLAG_UHANDLER 2
#define UWOP_TWOBYTES(x) (((x) >> 8) & 0xff), ((x) & 0xff)
#define UWOP_ALLOC_SMALL(size) (0x00 | (size / 16))
#define UWOP_SAVE_REGP(reg, offset) UWOP_TWOBYTES((0xC8 << 8) | ((reg - 19) << 6) | (offset/8))
#define UWOP_NOP 0xE5
#define UWOP_END 0xE4
struct results
{
int pc_offset; /* pc offset from code start */
int fp_offset; /* fp offset from stack pointer */
int handler; /* expect handler to be set? */
ULONG_PTR pc; /* expected final pc value */
int frame; /* expected frame return value */
int frame_offset; /* whether the frame return value is an offset or an absolute value */
int regs[32][2]; /* expected values for registers */
};
struct unwind_test
{
const BYTE *function;
size_t function_size;
const BYTE *unwind_info;
size_t unwind_size;
const struct results *results;
unsigned int nb_results;
};
enum regs
{
x0, x1, x2, x3, x4, x5, x6, x7,
x8, x9, x10, x11, x12, x13, x14, x15,
x16, x17, x18, x19, x20, x21, x22, x23,
x24, x25, x26, x27, x28, x29, lr, sp
};
static const char * const reg_names[32] =
{
"x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7",
"x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15",
"x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23",
"x24", "x25", "x26", "x27", "x28", "x29", "lr", "sp"
};
#define ORIG_LR 0xCCCCCCCC
#define UWOP(code,info) (UWOP_##code | ((info) << 4))
static void call_virtual_unwind( int testnum, const struct unwind_test *test )
{
static const int code_offset = 1024;
static const int unwind_offset = 2048;
void *handler, *data;
CONTEXT context;
RUNTIME_FUNCTION runtime_func;
KNONVOLATILE_CONTEXT_POINTERS ctx_ptr;
UINT i, j, k;
ULONG64 fake_stack[256];
ULONG64 frame, orig_pc, orig_fp, unset_reg, sp_offset = 0;
static const UINT nb_regs = ARRAY_SIZE(test->results[i].regs);
memcpy( (char *)code_mem + code_offset, test->function, test->function_size );
memcpy( (char *)code_mem + unwind_offset, test->unwind_info, test->unwind_size );
runtime_func.BeginAddress = code_offset;
if (test->unwind_size)
runtime_func.UnwindData = unwind_offset;
else
memcpy(&runtime_func.UnwindData, test->unwind_info, 4);
trace( "code: %p stack: %p\n", code_mem, fake_stack );
for (i = 0; i < test->nb_results; i++)
{
memset( &ctx_ptr, 0, sizeof(ctx_ptr) );
memset( &context, 0x55, sizeof(context) );
memset( &unset_reg, 0x55, sizeof(unset_reg) );
for (j = 0; j < 256; j++) fake_stack[j] = j * 8;
context.Sp = (ULONG_PTR)fake_stack;
context.Lr = (ULONG_PTR)ORIG_LR;
context.Fp = (ULONG_PTR)fake_stack + test->results[i].fp_offset;
orig_fp = context.Fp;
orig_pc = (ULONG64)code_mem + code_offset + test->results[i].pc_offset;
trace( "%u/%u: pc=%p (%02x) fp=%p sp=%p\n", testnum, i,
(void *)orig_pc, *(DWORD *)orig_pc, (void *)orig_fp, (void *)context.Sp );
data = (void *)0xdeadbeef;
handler = RtlVirtualUnwind( UNW_FLAG_EHANDLER, (ULONG64)code_mem, orig_pc,
&runtime_func, &context, &data, &frame, &ctx_ptr );
if (test->results[i].handler > 0)
{
/* Yet untested */
ok( (char *)handler == (char *)code_mem + 0x200,
"%u/%u: wrong handler %p/%p\n", testnum, i, handler, (char *)code_mem + 0x200 );
if (handler) ok( *(DWORD *)data == 0x08070605,
"%u/%u: wrong handler data %p\n", testnum, i, data );
}
else
{
ok( handler == NULL, "%u/%u: handler %p instead of NULL\n", testnum, i, handler );
}
ok( context.Pc == test->results[i].pc, "%u/%u: wrong pc %p/%p\n",
testnum, i, (void *)context.Pc, (void*)test->results[i].pc );
ok( frame == (test->results[i].frame_offset ? (ULONG64)fake_stack : 0) + test->results[i].frame, "%u/%u: wrong frame %p/%p\n",
testnum, i, (void *)frame, (char *)(test->results[i].frame_offset ? fake_stack : NULL) + test->results[i].frame );
sp_offset = 0;
for (k = 0; k < nb_regs; k++)
{
if (test->results[i].regs[k][0] == -1)
break;
if (test->results[i].regs[k][0] == sp) {
/* If sp is part of the registers list, treat it as an offset
* between the returned frame pointer and the sp register. */
sp_offset = test->results[i].regs[k][1];
break;
}
}
ok( frame - sp_offset == context.Sp, "%u/%u: wrong sp %p/%p\n",
testnum, i, (void *)frame - sp_offset, (void *)context.Sp);
for (j = 0; j < 31; j++) /* Not including sp here */
{
for (k = 0; k < nb_regs; k++)
{
if (test->results[i].regs[k][0] == -1)
{
k = nb_regs;
break;
}
if (test->results[i].regs[k][0] == j) break;
}
if (j >= 19 && j <= 30 && (&ctx_ptr.X19)[j - 19])
{
ok( k < nb_regs, "%u/%u: register %s should not be set to %llx\n",
testnum, i, reg_names[j], context.X[j] );
if (k < nb_regs)
ok( context.X[j] == test->results[i].regs[k][1],
"%u/%u: register %s wrong %p/%x\n",
testnum, i, reg_names[j], (void *)context.X[j], test->results[i].regs[k][1] );
}
else if (k < nb_regs)
{
ok( context.X[j] == test->results[i].regs[k][1],
"%u/%u: register %s wrong %p/%x\n",
testnum, i, reg_names[j], (void *)context.X[j], test->results[i].regs[k][1] );
}
else
{
ok( k == nb_regs, "%u/%u: register %s should be set\n", testnum, i, reg_names[j] );
if (j == lr)
ok( context.Lr == ORIG_LR, "%u/%u: register lr wrong %p/unset\n",
testnum, i, (void *)context.Lr );
else if (j == x29)
ok( context.Fp == orig_fp, "%u/%u: register fp wrong %p/unset\n",
testnum, i, (void *)context.Fp );
else
ok( context.X[j] == unset_reg,
"%u/%u: register %s wrong %p/unset\n",
testnum, i, reg_names[j], (void *)context.X[j]);
}
}
}
}
#define DW(dword) ((dword >> 0) & 0xff), ((dword >> 8) & 0xff), ((dword >> 16) & 0xff), ((dword >> 24) & 0xff)
static void test_virtual_unwind(void)
{
static const BYTE function_0[] =
{
0xff, 0x83, 0x00, 0xd1, /* 00: sub sp, sp, #32 */
0xf3, 0x53, 0x01, 0xa9, /* 04: stp x19, x20, [sp, #16] */
0x1f, 0x20, 0x03, 0xd5, /* 08: nop */
0xf3, 0x53, 0x41, 0xa9, /* 0c: ldp x19, x20, [sp, #16] */
0xff, 0x83, 0x00, 0x91, /* 10: add sp, sp, #32 */
0xc0, 0x03, 0x5f, 0xd6, /* 14: ret */
};
static const DWORD unwind_info_0_header =
(sizeof(function_0)/4) | /* function length */
(0 << 20) | /* X */
(0 << 21) | /* E */
(1 << 22) | /* epilog */
(2 << 27); /* codes */
static const DWORD unwind_info_0_epilog0 =
(3 << 0) | /* offset */
(4 << 22); /* index */
static const BYTE unwind_info_0[] =
{
DW(unwind_info_0_header),
DW(unwind_info_0_epilog0),
UWOP_SAVE_REGP(19, 16), /* stp x19, x20, [sp, #16] */
UWOP_ALLOC_SMALL(32), /* sub sp, sp, #32 */
UWOP_END,
UWOP_SAVE_REGP(19, 16), /* stp x19, x20, [sp, #16] */
UWOP_ALLOC_SMALL(32), /* sub sp, sp, #32 */
UWOP_END,
};
static const struct results results_0[] =
{
/* offset fp handler pc frame offset registers */
{ 0x00, 0x00, 0, ORIG_LR, 0x000, TRUE, { {-1,-1} }},
{ 0x04, 0x00, 0, ORIG_LR, 0x020, TRUE, { {-1,-1} }},
{ 0x08, 0x00, 0, ORIG_LR, 0x020, TRUE, { {x19,0x10}, {x20,0x18}, {-1,-1} }},
{ 0x0c, 0x00, 0, ORIG_LR, 0x020, TRUE, { {x19,0x10}, {x20,0x18}, {-1,-1} }},
{ 0x10, 0x00, 0, ORIG_LR, 0x020, TRUE, { {-1,-1} }},
{ 0x14, 0x00, 0, ORIG_LR, 0x000, TRUE, { {-1,-1} }},
};
static const BYTE function_1[] =
{
0xf3, 0x53, 0xbe, 0xa9, /* 00: stp x19, x20, [sp, #-32]! */
0xfe, 0x0b, 0x00, 0xf9, /* 04: str x30, [sp, #16] */
0xff, 0x43, 0x00, 0xd1, /* 08: sub sp, sp, #16 */
0x1f, 0x20, 0x03, 0xd5, /* 0c: nop */
0xff, 0x43, 0x00, 0x91, /* 10: add sp, sp, #16 */
0xfe, 0x0b, 0x40, 0xf9, /* 14: ldr x30, [sp, #16] */
0xf3, 0x53, 0xc2, 0xa8, /* 18: ldp x19, x20, [sp], #32 */
0xc0, 0x03, 0x5f, 0xd6, /* 1c: ret */
};
static const DWORD unwind_info_1_packed =
(1 << 0) | /* Flag */
(sizeof(function_1)/4 << 2) | /* FunctionLength */
(0 << 13) | /* RegF */
(2 << 16) | /* RegI */
(0 << 20) | /* H */
(1 << 21) | /* CR */
(3 << 23); /* FrameSize */
static const BYTE unwind_info_1[] = { DW(unwind_info_1_packed) };
/* The prologue/epilogue locations are commented out below, as we don't
* handle those cases at the moment. */
static const struct results results_1[] =
{
/* offset fp handler pc frame offset registers */
#if 0
{ 0x00, 0x00, 0, ORIG_LR, 0x000, TRUE, { {-1,-1} }},
{ 0x04, 0x00, 0, ORIG_LR, 0x020, TRUE, { {x19,0x00}, {x20,0x08}, {-1,-1} }},
{ 0x08, 0x00, 0, 0x10, 0x020, TRUE, { {x19,0x00}, {x20,0x08}, {lr,0x10}, {-1,-1} }},
#endif
{ 0x0c, 0x00, 0, 0x20, 0x030, TRUE, { {x19,0x10}, {x20,0x18}, {lr,0x20}, {-1,-1} }},
{ 0x10, 0x00, 0, 0x20, 0x030, TRUE, { {x19,0x10}, {x20,0x18}, {lr,0x20}, {-1,-1} }},
#if 0
{ 0x14, 0x00, 0, 0x10, 0x020, TRUE, { {x19,0x00}, {x20,0x08}, {lr,0x10}, {-1,-1} }},
{ 0x18, 0x00, 0, ORIG_LR, 0x020, TRUE, { {x19,0x00}, {x20,0x08}, {-1,-1} }},
{ 0x1c, 0x00, 0, ORIG_LR, 0x000, TRUE, { {-1,-1} }},
#endif
};
static const struct unwind_test tests[] =
{
#define TEST(func, unwind, unwind_packed, results) \
{ func, sizeof(func), unwind, unwind_packed ? 0 : sizeof(unwind), results, ARRAY_SIZE(results) }
TEST(function_0, unwind_info_0, 0, results_0),
TEST(function_1, unwind_info_1, 1, results_1),
#undef TEST
};
unsigned int i;
for (i = 0; i < ARRAY_SIZE(tests); i++)
call_virtual_unwind( i, &tests[i] );
}
static void test_thread_context(void)
{
CONTEXT context;
......@@ -5741,6 +6020,11 @@ START_TEST(exception)
else
skip( "Dynamic unwind functions not found\n" );
test_extended_context();
#elif defined(__aarch64__)
test_virtual_unwind();
#endif
test_debugger();
......
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