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ntdll: Add support for the save_any_reg ARM64 unwind code.
Based on a patch by Billy Laws.
This commit is contained in:
Alexandre Julliard
parent
7c4ca6ff74
commit
a271fc9e19
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@ -8092,6 +8092,7 @@ static void test_collided_unwind(void)
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#define UWOP_END 0xE4
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#define UWOP_END_C 0xE5
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#define UWOP_SAVE_NEXT 0xE6
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#define UWOP_SAVE_ANY_REG(reg,offset) 0xE7,(reg),(offset)
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#define UWOP_TRAP_FRAME 0xE8
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#define UWOP_MACHINE_FRAME 0xE9
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#define UWOP_CONTEXT 0xEA
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@ -8164,8 +8165,6 @@ static void call_virtual_unwind( int testnum, const struct unwind_test *test )
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else
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memcpy(&runtime_func.UnwindData, test->unwind_info, 4);
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trace( "code: %p stack: %p\n", code_mem, fake_stack );
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for (i = 0; i < test->nb_results; i++)
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{
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memset( &ctx_ptr, 0, sizeof(ctx_ptr) );
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@ -8900,6 +8899,59 @@ static void test_virtual_unwind(void)
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{ 0x24, 0x10, 0, ORIG_LR, 0x000, TRUE, { {-1,-1} }},
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};
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static const BYTE function_14[] =
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{
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0xe6, 0x9f, 0xba, 0xad, /* 00: stp q6, q7, [sp, #-0xb0]! */
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0xe8, 0x27, 0x01, 0xad, /* 04: stp q8, q9, [sp, #0x20] */
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0xea, 0x2f, 0x02, 0xad, /* 08: stp q10, q11, [sp, #0x40] */
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0xec, 0x37, 0x03, 0xad, /* 0c: stp q12, q13, [sp, #0x60] */
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0xee, 0x3f, 0x04, 0xad, /* 10: stp q14, q15, [sp, #0x80] */
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0xfd, 0x7b, 0x0a, 0xa9, /* 14: stp x29, x30, [sp, #0xa0] */
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0xfd, 0x83, 0x02, 0x91, /* 18: add x29, sp, #0xa0 */
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0x1f, 0x20, 0x03, 0xd5, /* 1c: nop */
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0xfd, 0x7b, 0x4a, 0xa9, /* 20: ldp x29, x30, [sp, #0xa0] */
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0xee, 0x3f, 0x44, 0xad, /* 24: ldp q14, q15, [sp, #0x80] */
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0xec, 0x37, 0x43, 0xad, /* 28: ldp q12, q13, [sp, #0x60] */
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0xea, 0x2f, 0x42, 0xad, /* 2c: ldp q10, q11, [sp, #0x40] */
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0xe8, 0x27, 0x41, 0xad, /* 30: ldp q8, q9, [sp, #0x20] */
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0xe6, 0x9f, 0xc5, 0xac, /* 34: ldp q6, q7, [sp], #0xb0 */
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0xc0, 0x03, 0x5f, 0xd6, /* 38: ret */
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};
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static const DWORD unwind_info_14_header =
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(sizeof(function_14)/4) | /* function length */
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(0 << 20) | /* X */
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(1 << 21) | /* E */
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(2 << 22) | /* epilog */
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(5 << 27); /* codes */
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static const BYTE unwind_info_14[] =
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{
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DW(unwind_info_14_header),
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UWOP_ADD_FP(0xa0), /* 18: add x29, sp, #0xa0 */
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UWOP_SAVE_FPLR(0xa0), /* 14: stp x29, x30, [sp, #0xa0] */
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UWOP_SAVE_ANY_REG(0x4e,0x88), /* 10: stp q14, q15, [sp, #0x80] */
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UWOP_SAVE_NEXT, /* 0c: stp q12, q13, [sp, #0x60] */
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UWOP_SAVE_ANY_REG(0x4a,0x84), /* 08: stp q10, q11, [sp, #0x40] */
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UWOP_SAVE_ANY_REG(0x48,0x82), /* 04: stp q8, q9, [sp, #0x20] */
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UWOP_SAVE_ANY_REG(0x66,0x8a), /* 00: stp q6, q7, [sp, #-0xb0]! */
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UWOP_END,
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UWOP_NOP /* padding */
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};
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static const struct results results_14[] =
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{
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/* offset fp handler pc frame offset registers */
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{ 0x00, 0x00, 0, ORIG_LR, 0x000, TRUE, { {-1,-1} }},
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{ 0x04, 0x00, 0, ORIG_LR, 0x0b0, TRUE, { {d6, 0x00}, {d7, 0x10}, {-1,-1} }},
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{ 0x08, 0x00, 0, ORIG_LR, 0x0b0, TRUE, { {d6, 0x00}, {d7, 0x10}, {d8, 0x20}, {d9, 0x30}, {-1,-1} }},
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{ 0x0c, 0x00, 0, ORIG_LR, 0x0b0, TRUE, { {d6, 0x00}, {d7, 0x10}, {d8, 0x20}, {d9, 0x30}, {d10, 0x40}, {d11, 0x50}, {-1,-1} }},
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{ 0x10, 0x00, 0, ORIG_LR, 0x0b0, TRUE, { {d6, 0x00}, {d7, 0x10}, {d8, 0x20}, {d9, 0x30}, {d10, 0x40}, {d11, 0x50}, {d12, 0x60}, {d13, 0x70}, {-1,-1} }},
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{ 0x14, 0x00, 0, ORIG_LR, 0x0b0, TRUE, { {d6, 0x00}, {d7, 0x10}, {d8, 0x20}, {d9, 0x30}, {d10, 0x40}, {d11, 0x50}, {d12, 0x60}, {d13, 0x70}, {d14, 0x80}, {d15, 0x90}, {-1,-1} }},
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{ 0x18, 0x00, 0, 0xa8, 0x0b0, TRUE, { {d6, 0x00}, {d7, 0x10}, {d8, 0x20}, {d9, 0x30}, {d10, 0x40}, {d11, 0x50}, {d12, 0x60}, {d13, 0x70}, {d14, 0x80}, {d15, 0x90}, {lr, 0xa8}, {x29, 0xa0}, {-1,-1} }},
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{ 0x1c, 0xa0, 0, 0xa8, 0x0b0, TRUE, { {d6, 0x00}, {d7, 0x10}, {d8, 0x20}, {d9, 0x30}, {d10, 0x40}, {d11, 0x50}, {d12, 0x60}, {d13, 0x70}, {d14, 0x80}, {d15, 0x90}, {lr, 0xa8}, {x29, 0xa0}, {-1,-1} }},
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};
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static const struct unwind_test tests[] =
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{
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#define TEST(func, unwind, unwind_packed, results) \
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@ -8918,6 +8970,7 @@ static void test_virtual_unwind(void)
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TEST(function_11, unwind_info_11, 1, results_11),
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TEST(function_12, unwind_info_12, 1, results_12),
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TEST(function_13, unwind_info_13, 1, results_13),
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TEST(function_14, unwind_info_14, 0, results_14),
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#undef TEST
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};
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unsigned int i;
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@ -296,7 +296,7 @@ static const BYTE unwind_code_len[256] =
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/* 80 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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/* a0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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/* c0 */ 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
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/* e0 */ 4,1,2,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
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/* e0 */ 4,1,2,1,1,1,1,3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
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};
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static unsigned int get_sequence_len( BYTE *ptr, BYTE *end )
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@ -336,6 +336,40 @@ static void restore_fpregs( int reg, int count, int pos, ARM64_NT_CONTEXT *conte
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if (pos < 0) context->Sp += -8 * pos;
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}
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static void restore_qregs( int reg, int count, int pos, ARM64_NT_CONTEXT *context,
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KNONVOLATILE_CONTEXT_POINTERS_ARM64 *ptrs )
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{
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int i, offset = max( 0, pos );
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for (i = 0; i < count; i++)
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{
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if (ptrs && reg + i >= 8) (&ptrs->D8)[reg + i - 8] = (DWORD64 *)context->Sp + 2 * (i + offset);
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context->V[reg + i].Low = ((DWORD64 *)context->Sp)[2 * (i + offset)];
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context->V[reg + i].High = ((DWORD64 *)context->Sp)[2 * (i + offset) + 1];
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}
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if (pos < 0) context->Sp += -16 * pos;
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}
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static void restore_any_reg( int reg, int count, int type, int pos, ARM64_NT_CONTEXT *context,
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KNONVOLATILE_CONTEXT_POINTERS_ARM64 *ptrs )
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{
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if (reg & 0x20) pos = -pos - 1;
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switch (type)
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{
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case 0:
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if (count > 1 || pos < 0) pos *= 2;
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restore_regs( reg & 0x1f, count, pos, context, ptrs );
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break;
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case 1:
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if (count > 1 || pos < 0) pos *= 2;
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restore_fpregs( reg & 0x1f, count, pos, context, ptrs );
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break;
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case 2:
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restore_qregs( reg & 0x1f, count, pos, context, ptrs );
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break;
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}
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}
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static void do_pac_auth( ARM64_NT_CONTEXT *context )
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{
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register DWORD64 x17 __asm__( "x17" ) = context->Lr;
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@ -421,6 +455,11 @@ static void process_unwind_codes( BYTE *ptr, BYTE *end, ARM64_NT_CONTEXT *contex
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ptr += len;
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continue;
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}
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else if (*ptr == 0xe7) /* save_any_reg */
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{
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restore_any_reg( ptr[1], (ptr[1] & 0x40) ? save_next : 1,
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ptr[2] >> 6, ptr[2] & 0x3f, context, ptrs );
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}
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else if (*ptr == 0xe9) /* MSFT_OP_MACHINE_FRAME */
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{
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context->Pc = ((DWORD64 *)context->Sp)[1];
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